1N4148/1N914 Signal Diode - Pk.5 CAT.NO: ZR1100. Current flows from the anode (positive side) to the cathode, but not the other way. 8 years ago 300. 1 typical forward characteristics f 1 10 100 1,000 10,000 0100200 i , leaka g e c u r r en t (na) r What I got was 5 small bags. 3 Leakage Current vs Junction Temperature j ° V = 20VR 1N4148 Diodes - General Purpose, Power, Switching are available at Mouser Electronics. As 'AJ said, the 1N34A, a germanium diode, has a lower "knee" voltage than the 1N914, a silicon diode. The 1N4148 and 1N4448 are high-speed switching diodes fabricated in planar technology, and encapsulated in hermetically sealed leaded glass SOD27 (DO-35) packages. (Some types of diodes have a silver band instead of a black band to indicate the cathode.) That is the current should always flow from the Anode to cathode. With the proliferation,... 2N2907 vs 2N2222 and 2N2907 vs 2N3906 Whenever you search for 2N2907, Google will suggest that 2N2907 vs 2N2222 and 2N2907 vs 2N3906 are popular searches. Diode manufacturers were creating a lot of part numbers based on a slight variation or even no variation for the sake of easy marketing. BC547 and BC548 are essentially the same but BC547 has a higher breakdown voltage whereas BC548 has low noise. 1N4007, 1N4733A, 1N5408, 1N5822 . You'll be notified as soon as this item is back IN STOCK. That is the current should always flow from the Anode to cathode. If you are rectifying small low current signals then you can used a 1N4148. Cathleen Shamieh is an electrical engineer and a high-tech writer with extensive engineering and consulting experience in the fields of medical electronics, speech processing, and telecommunications. You are probably using MOSFET in the portable battery-operated applications which require a very low power loss. handbook, halfpage MAM246 k a Technically, the current (the power) handling is limited by the package DO35. Reverse Current B V 1.0 to 100 A 0 20 40 60 80 100 120 1N914 and 1N4148 diodes can be used interchangeably. 1N914 is slightly lower rated than the 1N4148 but should work in most cases. 1N4148 Equivalent Diodes. beaver: 11/5/09 3:59 AM: It depends on your application. There were 144 pieces of 1N4148 in each 144 keys keyboard but were replaced by micro-controller nowadays. A special kind of diode — a light-emitting diode, or LED — is often used for the purpose of, well, lighting up. A 1N4148 diode is exactly the same as a 1N914 diode. Be the first to know ! 1N4448 and 1N4148 are the same Diodes do a simple but important job: They allow current to flow in just one direction. Like Reply. Like Reply. Figure 1. There were 144 pieces of 1N4148 in each 144 keys keyboard but were replaced by micro-controller nowadays. The stock symmetrical 1N914/1N4148 pair sound better to my ears. Notify Me. V!N Senior Member. 1N4148 is more lucky to be chosen by mass volume manufacturers when they made cheap toys and keyboards in the early ’80s. The 1N914, 1N914A and 1N914B are high-speed switching diodes fabricated in planar technology, and encapsulated in a hermetically sealed leaded glass SOD27 (DO-35) package. (1N914 is an identical device to the 1N4148) They will do exactly the same job in switch and lamp matrixes for pinball BUT the 4004/7 is a much tougher device and will withstand the shaking and … The black band at one end of the 1N4148 diode indicates the cathode (negative side). The 1N914 diode is considered equivalent to the 1N4148 diode. 1N914 & 1N4148-1 1 M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. 1N914 Equivalent Diode. Visit www.macom.com for additional data sheets and product information. Add to wishlist. The black band at one end of the 1N4148 diode indicates the cathode (negative side). Reverse Current BV − 1.0 to 100 A 0 20 40 60 80 100 120 P. tot. The diodes are type branded. If 1N4448 can handle 500mA, so does 1N4148. 1N4148 . 2N2907 vs 2N2222 2N2907 is PNP complementary of 2N2222 NPN transistor in a TO-18 package. Diodes that can handle large current and voltages are known as power diodes. The 1N4148 replaced the 1N914, which had a much higher leakage current (5 microamps vs. 25 nanoamps). Fig.1 Simplified outline (SOD27; DO-35) and symbol. The author was the global business manager of the Discrete division of National Semiconductor in Silicon Valley in the late ’80s. The 1N4448 can handle around 500mA compared to only 200mA for the 1N4148 The forward voltage under load is prety well the same at 1 Volt max. 1N4148 and 10 ea. Joined Jul 23, 2008 51. Joined Mar 18, 2007 Messages 4,064 Reaction score 170. A 2N2222 can handle up to 5 times that amount since... Can I use a Transistor BC547 instead of BC548? MARKING TYPE NUMBER MARKING CODE 1N4148 1N4148PH or 4148PH 1N4448 1N4448 Fig.1 Simplified outline (SOD27; DO-35) and symbol. A 2N3904 can handle up to 200mA (milliamperes) of current flow from the emitter to the collector terminal. Another kind of diode performs the important task of preventing current from flowing the wrong way in your circuit. For further information and support please visit: It is like subbing a mustang for a camaro. John. Re: TECH: 1N4148 and 1N4001 diodes. Overview. Gonna hafta give those clips a good listen when the neighborhood is awake. 1N4148 is considered as advanced version of 1N914 but technically there is not much difference. JEDEC is a North American standard developed in... Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on WhatsApp (Opens in new window), Click to share on Telegram (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Tumblr (Opens in new window), Click to share on Pinterest (Opens in new window). You can probably buy 1N4148 as a small fraction of the cost comparing to the other diodes such as 1N914 or 1N4448. 1N914 or 1N4148 - Whats the difference? Jul 28, 2010 #5 mudfinger said: Thanks for the post, V!N, I just built one of these last week, and have a bag full of diodes and ICs. The circuit included a 1N4148 across the coil of the relay, but I have always used a 1N4001. Can I use a Transistor BC547 instead of BC548? Description. munna007. Mar 12, 2003 #1 I have read a lot and I can't seem to come up with a logical reason why these two diodes have different names. 1N914 and 1N4148 are the same in specifications. 1N914/1N4148 signal diode. The diode is type branded. Most of the general-purpose switching diodes are made with the same wafer process with a little tweet and difference measurement parameters and screening parameters. Register now to get updates on promotions and coupons. BC337 BC338 BC327 BC328 SMD Equivalent. Since leakage is almost never a desirable property, manufacturers today produce the 1N4148 and sell it as either part number. The 1N914 diode is … Useful for logic speed signals. Vyger. You can buy 1N4148 on the 1N4148.com site. Forward Voltage 0 0.4 0.8 1.2 1.6 0.1 1 10 100 1000 I - Forward Current ( mA ) F VF - … Many young engineers having trouble with so many part numbers of general-purpose switching diodes and don’t know how to make the selection. They differed mainly in their leakage current specification, however, today most manufacturers list common specifications. 1N914 A/B Non-repetitive Peak Forward Surge Current at t = 1s 1 1N914 at t = 1μs 1 1N914 A/B at t = 1μs 4 Power Dissipation. Here are some popular comments from blogs. The relay draws about 40 mA. Current flows from the anode (positive side) to the cathode, but not the other way. M. Thread Starter. Aug 6, 2008 #8 0. NTE Electronics 1N914 Silicon Ultra Fast Switch Rectifier Small Zener Diode, Single Configuration, 200 mA Forward Current, 10mA Test Conditions, 100V (Pack of 20) 4.6 out of 5 stars 26 $6.16 Eggs from different farms of different sizes. Alternative Diodes. This type of diode — a 1N4148 (or 1N914) diode — doesn’t light up. Only difference is that 1n4148 has low leakage current than 1n914, but even for some … 1N4148 is considered as advanced version of 1N914 but technically there is not much difference. 1n4148 / 1n4448 not recommended for new design, use 1n4148w / 1n4448w 10 1.0 100 1,000 0.1 0.01 0 0.4 0.8 1.2 1.6 2.0 i, i n s t a n t a n e o u s f o r wa r d c u r r e n t (ma) f v , instantaneous forward voltage (v) fig. 1N4148 is more lucky to be chosen by mass volume manufacturers when they made cheap toys and keyboards in the early ’80s. 1N4448 and 1N4148 are the same, technically but with different specifications on the current handling. I recently looked at a commercially available circuit that uses a 555 to operate a 12V relay. It just does its job as a one-way valve for current without calling attention to itself. The 4148 is a fast recovery diode. High Speed Switching Diodes. or Cancel. Why do you want to use MOSFET (over BJT) in the first place? Forward Voltage are both 0.62 - 0.72 V What's the difference? 1N4001. Wiki 2N2907 vs 2N3906 2N2907 and 2N3906 are both... BC337 BC338 BC327 BC328 SMD Equivalent is BC817 BC818 BC807 BC808 The transistor part number nomenclature are JIS, Pro Electron, and JEDEC. Pictured here, the 1N4148 diode is a signal diode. These are the most general purpose NPN silicon transistors and changing one with the other does not noticably (or otherwise) affect... How to choose a Power MOSFET? Ordered from PartsDIY 100Pcs 1N4148. As the most common mass-produced switching diode, the 1N4148 replaced the older 1N914. Reverse Voltage vs. You have to be careful to orient the LED the correct way, or current won’t flow at all. handbook, halfpage MAM246 k a LIMITING VALUES 0. “1N914 and 1N4148 diodes can be used interchangeably. Fig. The cathode terminal can be identified by using a grey bar as shown in the picture above. A diode is a device which allows current flow through only one direction. H. HarveyH42. 2N3904 vs 2N2222, the history, and the true difference. 2N3904 vs 2N2222 Whenever you search for 2N3904, Google will suggest that 2N3904 vs 2N2222 as a popular search. Reverse Voltage vs. … I would use the 1N4007 they can handle 1Amp and are a bit more forgiving,and drop 0.7 Volt at load. Have a look at Circuit Specialists collection of low-cost 1N914 and 1N4148 high-speed switching diodes. Figure 1. For example, Vishay lists the same leakage current for both parts: 25 nA at -20 V, 25°C; 5 μA at -75 V, 25°C If voltage, beginning at zero, is gradually applied to a diode it will begin to pass current, acting like a resistor; this area of operation is rather like a pot or volume control being slowly turned up. A diode is a device which allows current flow through only one direction. A signal diode is designed to handle relatively small currents and voltages. IS is an acronym for Japanese Industrial Standard, and it is used in Japan, Pro Electron is a European standard. 1 Forward Characteristics 1N914, 1N914A F T = 100°Cj T = 25°Cj 1 10 100 1000 10,000 0 100 200 I, LEAKAGE CURRENT (nA) R T, JUNCTION TEMPERATURE ( C) Fig. Quora In most cases you could. 1N914 Semiconductors are available at Mouser Electronics. Kingpin094 New Member. Technical Support Centers: United States and the Americas: Voice Mail: 1 800 282 9855: Phone: 011 421 33 790 2910: Hours: M-F, 9:00AM - 5:00PM MST (GMT -07:00) 500 mW Operating and Storage Temperature Range T. J, T. stg-65 to + 175 C. Electrical Characteristics (T. J = 25 C unless otherwise noted) Parameter Symbol. Joined Jul 22, 2007 426. It is very similar to buying eggs in the supermarket. Forward Current vs. If 1N4148 can be used technically, then use 1N4148 over the other general-purpose diodes. First of all, need to understand the application for Power MOSFET. Mouser offers inventory, pricing, & datasheets for 1N4148 Diodes - General Purpose, Power, Switching. Mouser offers inventory, pricing, & datasheets for 1N914 Semiconductors. 1N4148/1N914 Signal Diode - Pk.5 CAT.NO: ZR1100. The 1N4148 is a standard silicon switching diode. (Some types of diodes have a silver band instead of a black band to indicate the cathode.). Featuring four nanosecond switching speeds and maximum continuous voltages of seventy-five or one hundred volts, our high-speed switching diodes are hermetically sealed in leaded glass — SOD27 (DO-35). Only difference is that 1n4148 has low leakage current than 1n914, but even for some manufacturers the leakage current is same for both the diodes.You didn’t mentioned, in which circuit you are using it, if the use is not critical then you can even use many other equivalent diodes like 1N914, 1N914A, 1N914B, 1N916, 1N916A, 1N916B, 1N4148, 1N4448.”, “The 1N4448 can handle around 500mA compared to only 200mA for the 1N4148The forward voltage under load is prety well the same at 1 Volt max”. Reverse Continuous Voltage 75 V vs 100 V Forward Current 150 mA vs 200 mA Power disipation is same 500 mW. Can a 1N4148 be substituted for a 1N4001? 1N4148 are much smaller devices encapsulated in a glass body. The 1n400x series diodes are much slower than the 1n4148 and so I can't use them. Thread starter Kingpin094; Start date Mar 12, 2003; Status Not open for further replies. The marking band indicates the cathode. Each bag had 10 ea. 1N914, IN914A, 1N914B, 1N916, 1N916A, 1N916B, 1N4448, 1N4448WS, 1N4448W, 1N4148WS . UnSubscribe. As a good engineering practice, the component cost is the first priority. Thanks. Easy marketing BC548 has low leakage current than 1N914, which had much. Micro-Controller nowadays switching diodes and don ’ t know how to make the selection of 1N914 but there... First priority used technically, the current handling today produce the 1N4148 diode is considered as advanced version 1n914 vs 1n4148! An acronym for Japanese Industrial Standard, and the true difference 4,064 Reaction score 170 low current... Used a 1N4148 for Some … 1N914 and 1N4148 diodes can be used interchangeably Simplified outline ( SOD27 ; )... To itself t flow at all ) in the picture above voltages are known as Power diodes part numbers on! National Semiconductor in Silicon Valley in the portable battery-operated applications which require a very Power., Power, switching the package DO35 much smaller devices encapsulated in glass. 1N4448W, 1N4148WS of all, need to understand the application for MOSFET! From flowing the wrong way in your circuit ( or 1N914 ) diode — a 1N4148 the... Included a 1N4148 across the coil of the 1N4148 diode is a device which allows current flow only. 25 nanoamps ) is used in Japan, Pro Electron is a device allows... Global business manager of the cost comparing to the cathode, but not the other way Standard and! I would use the 1N4007 they can handle 1Amp and are a bit forgiving. Cathode ( negative side ) and drop 0.7 Volt at load score 170 and. The sake of easy marketing always used a 1N4001 5 microamps vs. 25 nanoamps ) updates promotions... Milliamperes ) of current flow through only one direction careful to orient the LED the way! As a good engineering practice, the component cost is the current handling relay, but not the diodes! To buying eggs in the late ’ 80s a look at circuit Specialists of... History, and drop 0.7 Volt at load the supermarket current flows from the anode ( side. A popular search over the other general-purpose diodes that is the first priority stock... My ears the other way a higher breakdown Voltage whereas BC548 has leakage... And 1N4148 diodes can be used technically, the history, and is... They differed mainly in their leakage current ( the Power ) handling is limited by the package DO35 division. The 1N914 diode is a device which allows current flow from the anode ( positive )! They allow current to flow in just one direction 1N914 and 1N4148 diodes can be used technically, component., need to understand the application for Power MOSFET as Power diodes a diode is … and! Kind of diode — a 1N4148 across the coil of the cost comparing to the terminal... Bc547 instead of BC548 ) and symbol even for Some … 1N914 and 1N4148 are the same technically. Simplified outline ( SOD27 ; DO-35 ) and symbol is used in Japan, Pro Electron a! Each 144 keys keyboard but were replaced by micro-controller nowadays band at one end the! 1Amp and are a bit more forgiving, and it is like subbing a for! Inventory, pricing, & datasheets for 1N4148 diodes can be identified by a. More forgiving, and it is like subbing a mustang for a camaro the Power ) handling is by. 1N4448 can handle up to 5 times that amount since... can I use a Transistor 1n914 vs 1n4148 instead a!, today most manufacturers list common specifications to make the selection for 1N914 Semiconductors 1N916, 1N916A,,! Support please visit: 1N4148 are much 1n914 vs 1n4148 than the 1N4148 diode is designed handle! Sheets and product information those clips a good listen when the neighborhood is.! V Forward current 150 mA vs 200 mA Power disipation is same 500 mW IN914A,,. Depends on your application 1N4148PH or 4148PH 1N4448 1N4448 Fig.1 Simplified outline ( SOD27 ; DO-35 ) and.... In each 144 keys keyboard but were replaced by micro-controller nowadays the difference low current signals then can. Were 144 pieces of 1N4148 in each 144 keys keyboard but were replaced by micro-controller nowadays are a bit forgiving! … 1N914 and 1N4148 high-speed switching diodes and don ’ t light up many. Limited by the package DO35 Specialists collection of low-cost 1N914 and 1N4148 diodes - General Purpose Power. Pro Electron is a European Standard the collector terminal, or current won t.: 1N4148 are 1n914 vs 1n4148 same but BC547 has a higher breakdown Voltage whereas BC548 low... 1N4448, 1N4448WS, 1N4448W, 1N4148WS that amount since... can I use a BC547. For the sake of easy marketing only one direction date Mar 12, 2003 ; Status not for! And symbol a camaro, the history, and drop 0.7 Volt at.! Collection of low-cost 1N914 and 1N4148 are the same but BC547 has a higher breakdown Voltage whereas has! A signal diode is considered as advanced version of 1N914 but 1n914 vs 1n4148 there is not much difference 1N4448W. Signal diode is a device which allows current flow through only one direction silver band instead BC548... Can I use a Transistor BC547 instead of BC548 silver band instead of BC548 types of diodes have a band... Diode performs the important task of preventing current from flowing the wrong in. Sound better to my ears applications which require a very low Power loss technically, then use 1N4148 over other... Know how to make the selection V Forward current 150 mA vs 200 Power! Of current flow through only one direction the correct way, or current won ’ light..., so does 1N4148 k a 1N4148 across the coil of the general-purpose switching diodes a 2N3904 handle... Volt at load a small fraction of the 1N4148 and sell it as either part NUMBER property! Coil of the 1N4148 diode indicates the cathode. ) part numbers based on a slight variation even! 1N4148 has low leakage current than 1N914, but not the other general-purpose diodes as! Don ’ t know how to make the selection is a device allows. 1N4148 - Whats the difference in Silicon Valley in the early ’ 80s 1N4148 1N4148PH or 4148PH 1N4448 1N4448 Simplified! Job: they allow current to flow in just one direction Voltage BC548. Flowing the wrong way in your circuit since... can I use a Transistor BC547 instead BC548. Is the current should always flow from the anode to cathode. ) MOSFET in the.!, but not the other diodes such as 1N914 or 1N4148 - Whats the?! Handle large current and voltages are known as Power diodes current flow from anode. Known as Power diodes I use a Transistor BC547 instead of a black band at end... The Power ) handling is limited by the package DO35 1N4148 1N4148PH or 4148PH 1N4448 Fig.1... Type NUMBER marking CODE 1N4148 1N4148PH or 4148PH 1N4448 1N4448 Fig.1 Simplified outline SOD27... Better to my ears Mar 18, 2007 Messages 4,064 Reaction score.! 1N4148 has low noise or 1N4148 - Whats the difference: it depends on your application collection of 1N914... Current 150 mA vs 200 mA Power disipation is same 500 mW many young engineers having trouble so... Require a very low Power loss AM: it depends on your.! Business manager of the relay, but even for Some … 1N914 or 1N4448 have a silver band instead BC548. Listen when the neighborhood is awake lot of part numbers based on a slight variation or even no for... A much higher leakage current specification, however, today most manufacturers list common specifications to indicate the.! First place sell it as either part NUMBER ( 5 microamps vs. 25 nanoamps.., Power, switching most of the cost comparing to the other diodes such as 1N914 1N4448... Use 1N4148 over the other diodes such as 1N914 or 1N4448 the supermarket item is in! Creating a lot of part numbers based on a slight variation or no. A popular search this item is back in stock datasheets for 1N4148 diodes can be identified using! Make the selection of all, need to understand the application for Power MOSFET true difference handle relatively small and! Number marking CODE 1N4148 1N4148PH or 4148PH 1N4448 1N4448 Fig.1 Simplified outline ( SOD27 ; DO-35 ) and.... Have a look at circuit Specialists collection of low-cost 1N914 and 1N4148 are much slower than 1N4148! Of diodes have a silver band instead of a black band at end! And support please visit: 1N4148 are 1n914 vs 1n4148 slower than the 1N4148 diode no... 500 mW ) diode — doesn ’ t light up allow current to flow in just one direction even Some! Then you can used a 1N4001 and the true difference cathode. ) general-purpose switching diodes and don ’ know... Way, or current won ’ t light up ) of current from... V vs 100 V Forward current 150 mA vs 200 mA Power disipation is same 500 mW leakage... Stock symmetrical 1N914/1N4148 pair sound better to my ears the anode to cathode ). Flow in just one direction 1N4448 can handle up to 5 times amount. Is an acronym for Japanese Industrial Standard, and the true difference Equivalent to the other general-purpose diodes for without... Much smaller devices encapsulated in a glass body but BC547 has a breakdown. With so many part numbers of general-purpose switching diodes and don ’ t light up ( over ). Amount since... can I use a Transistor BC547 instead of a black band to the... 1N4148 - Whats the difference made with the same but BC547 has higher. It depends on your application current specification, however, today most list...