Its current gain bandwidth product ft is 250 mhz, with a beta of at least 100. Com is the biggest online electronic component datasheets search engine. Discrete semiconductors data sheet book, halfpage m3d186 2n3906 pnp switching transistor 1999 apr 23 product specification supersedes data. Switch using 2n 3906 transistor all about circuits. How to use 2n3906 pnp transistor the world of electronic parts. Dec 21, 2017 bc549, bc636, bc639, bc547, 2n2369, 2n3055, 2n3904, 2n3906, 2sc5200. Onsemi general purpose transistorspnp silicon,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other. Data sheet electrical engineering at new mexico tech. This transistor has only a gain value of 300, hence not suitable for amplifier circuits. The apidictor was designed in the early 1950s and contained three types of transistor, each of which could be of two specified types, but none of these are in general supply as of the early 2000s. Discrete semiconductors data sheet book, halfpage m3d186 2n3906 pnp switching transistor 1999 apr 23 product specification supersedes data of 1997 jun 20 philips semiconductors product specification pnp switching transistor 2n3906 features pinning low current max. Com datasheet search site for electronic components and semiconductors and other semiconductors. Is there anything available to see if a particular transistor can be replaced with a different one. Howdy guys, i found the main problem with my dc receiver that uses a pto.
Is there any webbased or stand alone program to do such service for transistors and ics. Semiconductor transistor, diode, ic cross reference. Since the distribution of heat in the transistor crystal is not uniform and depends on voltage and. Now look up the code in the alphanumeric listing which forms the main part of this book by clicking on the first character shown in the left menu. How to use the smd codebook to identify a particular smd device, first identify the package style and note the id code printed on the device. Free packages are available maximum ratings rating symbol value unit collector. Suppose you build a differential pair from mmbt39042n3904 surface mount equivalent transistors with mmbt39062n3906 surface mount equivalent for a current mirror. Pnp transistor tutorial the bipolar pnp transistor. Transistor and diode data book, 1236 pages, 1973, texas instruments.
The 2n3906 is specified by a collector current of 200 ma, collectorbase and collectoremitter voltages of 40 v, for power dissipation of 300 mw. The second part of this e book will contain a further 100 circuits. Its transition frequency f t is 250 mhz, with a beta of at least 100. Directions for determining the thermal resistance rths for cooling fins can be found on page 11.
Storage and fall time equivalent test circuit 3 v 275 10 k 1n916 cs. The idea of this book is to get you into the fun of putting things together and theres nothing. Apr 05, 2008 i during 80s and 90s, i used to search for components equivalents in books. To answer your question, you could use any general purpose pnp transistor. The base lead is the lead which controls the flow of current from emitter to collector. I try with several resistor values but the transistor never off. Here, the emitter current of the input transistor feeds directly into the base of the output transistor, and the pair act like a single transistor with an overall h fe value equal to the product of the two individual hfe values, i. Looking for a 2n3904 2n3906 ltspice model or schematic. The pto isnt putting out enough voltage to drive a mixer. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, base, and collector leads. Semiconductor 2n3904 technical data feature npn silicon epitaxial planar transistor for switching and to92 amplifier applications as complementary type, the pnp transistor 2n3906 is recommended 1. What im looking for is an ltspice model or schematic of a bufferamplifier circuit that uses a complimentary pair to get enough umph to the mixer.
The complementary npn transistor to the 2n3906 is the 2n3904. Bc557, 2n2907, bc556, a1015, c945, 2n4403, 9014, bc527, bc558, bc559 the pin configuration of the equivalent transistors may different from the 2n3906, therefore it is suggested to always confirm the pin configuration of the transistor you are replacing in the circuit. Mcigicm transistor kit, bc337 bc327 2n2222 2n2907 2n3904 2n3906 s8050 s8550 a1015 c1815 assortment, 10 values, 200pcs. Going from a back view, the first lead is the emitter, the second lead is the base, and the third lead is the collector. Transistor equivalents for the substitution of modern. Figure 5 shows the static equivalent circuits of npn and pnp transistors. Pnp switching transistor 2n3906 limiting values in accordance with the absolute maximum rating system iec 4. The factory should be consulted on applications involving pulsed or low duty cycle operations.
Feb 21, 2018 the 2n3906 transistor is commonly used as a switching device. Small signal transistors industry standard st nearest st. Most of them can be made with components from your junk box and hopefully you can put them together in less than an hour. The 4 best transistors to keep in your parts kit bald engineer. One of my interests is restoring vintage transistor radios. Ic cross reference cross reference ci stk cross reference ci tda cross reference ci sharp cross reference hitachi audio ic cross reference and circuit applications smd cross reference and equivalent we make every effort to ensure that the material on this site is accurate, however we do not warrant or represent that the information is free. The 2n3906 transistor is commonly used as a switching device. Keywords, 2n3906, datasheet, pdf, rohm, pnp, general, purpose, transistor.
The type was registered by motorola semiconductor in the mid1960s, together with the complementary pnp type 2n3906, and represented a significant performancecost improvement, with the plastic to92 case replacing metal cans. I am trying to use one 2n3906 transistor as a switch. It is designed for low current and power, medium voltage, and can operate at moderately high speeds. In pnp transistor, by default its in on state, but not to be said perfectly on until the base pin is not grounded. Both types were registered by motorola semiconductor in the mid1960s. The 2n3906 is a commonly used pnp bipolar junction transistor intended for general purpose. We will use the most widely used pnp transistor for our circuit, the 2n3906. If a mica insulation is used, the thermal resistance of the mica washer must be added, which amounts to about 0. Texas instruments transistor and diode databook 1st ed 1973 datasheets for diodes from 1n251 on and transistors from 2n117 on acrobat 7 pdf 34. Static equivalent circuits of npn and pnp transistors. Original transistor type original alternative type modern substitute alternative substitute. Dec 11, 2017 2n2222a is a npn transistor hence the collector and emitter will be left open reverse biased when the base pin is held at ground and will be closed forward biased when a signal is provided to base pin. Unfortunately, each device code is not necessarily unique.
There are books galore on this but surely someone knows of a site that has them listed and searchable my query is a simple one i have no 2n5551 transistors on hand and i want to see if one in my box will do the job. The 2n5551 is an npn amplifier transistor with an amplification factor hfe of 80 when the collector current is 10ma. Industry standard st nearest st replacement industry standard st nearest st replacement 1 different pin out 2 similar package 3 medium power transistor bc850b bc847b bc850c bc847c bc850w bc847bw bc850bw bc847bw bc850cw bc847cw bc857 bc857b bc857a bc857b bc857b bc857b bc857c bc857b bc857w bc857bw bc857aw bc857bw bc857bw bc857bw bc857cw bc857bw. You also use transistors that are next to each other on the reel. To cause the base current to flow in a pnp transistor the base needs to be more negative than the emitter current must leave the base by approx 0. Question about the right transistors all about circuits. If you cant search it here, nowhere else in the world. Of course, after 40 plus years of life, most electrolytic capacitors are suspect and the carboncomposition resistors have drifted high and sometimes become very noisy.
Apr 01, 2009 after comparing the spec sheets online and doing a little bit of googling, i found that pnp transistor 2n3906 s characteristics and specs seem to fit pretty well with bc559 and bc548 fits fairly well with 2n3904s. Here is an image showing the pin diagram of the this transistor. Nte194, 2n5833, 2n5088, 2n3055, 2n5401 pnp same family transistors. Transistor kit 10 value 200pcs npn pnp power transistor.1146 1033 1468 1048 302 16 566 950 1409 3 10 1128 1064 315 467 1330 1398 1609 1509 874 130 555 1263 1508 1627 1156 664 116 354 853 528 756 1623 755 695 1348 895 558 305 428 1172 1268 74 1340 919 1265