2N3906 Transistor | PNP Transistor, Specs, Pinout, Purposes

There are lots of transistors available in the market however some standout from the remainder. One such transistor is the 2N3906 PNP Transistor. On this information, we are going to take a better take a look at this transistor and listing out a few of its essential specs. We will even see the pinout and packaging of 2N3906 Transistor and a few widespread functions.

Introduction to 2N3906 PNP Transistor

The 2N3906 is a general-purpose Bi-Polar PNP Transistor. It is without doubt one of the well-liked discrete transistors that circuit designers, hobbyists and makers use of their electronics initiatives. Motorola Semiconductor launched the 2N3906 in addition to its NPN counterpart, the 2N3904 again within the 60’s.

We will use this transistor for each amplification in addition to switching functions. The TO-92 package deal is the commonest package deal for 2N3906 with each straight leans and bent leads.

Other than TO-92, additionally it is accessible in a few SMD packages as properly. SOT-23 and SOT-223 are the primary SMD packages, the place the SOT-23 variant has a component identify as MMBT3906 whereas the SOT-223 variant has the half identify as PZT3906.

The onsemi semiconductor firm is the first producer of 2N3906 transistors in TO-92 package deal with some small-time corporations corresponding to Micro Business Firm, NTE Electronics and Comchip Expertise are additionally producing them.

Beforehand, some massive semiconductor corporations (Fairchild – NXP, STMicroelectronics) additionally produced the 2N3906 Transistors, however as of right now, solely onsemi acts as the primary producer.

The SOT-223 package deal could be very uncommon (and Digi-Key listed it as out of date) however the SOT-23 package deal continues to be well-liked. Some corporations that manufacture SOT23 variant of 2N3906 are onsemi, Diodes Included, TSMC, Micro Business Firm, Panjit Worldwide Inc.

2N3906 Transistor Pinout

Earlier than trying on the specs of 2N3906 PNP Transistor, allow us to shortly take a peek on the circuit image and likewise the pinout of various packages of 23906 Transistor.

As it’s a BJT, it has three terminals: Base (B), Emitter (E) and Collector (C). There’s nothing particular in regards to the circuit image as it’s basically an everyday PNP Transistor. However none the much less, right here is the circuit image of 2N3906 Transistor.

Picture

Coming to the pinout, we took the three well-liked packages (TO092, SOT-23 and SOT-223) and made 3D fashions with pinouts. The next picture exhibits the pinout of 2N3906 Transistor.

Vital Specs of 2N3906

Allow us to now see some essential specs of 2N3906 PNP Transistor. The 2 foremost specs for any Bipolar Transistor are its Collector–to–Emitter Voltage and the Collector Present.

For 2N3906, the everyday collector–to–emitter voltage (V_CEO) is –40V and the collector present (I_C) is –200mA. Other than these two one other essential specification is the Emitter–Base Voltage (V_EBO), which –5V.

We’ll see different essential specs with the assistance of the next desk.

We listed out solely few essential parameters of 2N3906 Transistor within the desk. For extra data on all of the parameters and specs, we propose you to consult with the official datasheet.

What are the Purposes of 2N3906?

From the above listing of parameters and specs, we are able to determine some functions of the 2N3906 Transistor. Resulting from its very low rise-time and fall time values, we are able to use the 2N3906 as a fast-switching transistor.

The collector to emitter voltage is considerably excessive at -40V. So, we are able to simply swap masses at increased voltages. However an essential level about 2N3906 PNP Transistors is its low collector present.

Because it has a comparatively low steady collector present of -200mA, you can not use this transistor for masses that draw greater than 200mA.

Coming to the amplification functions, the DC Present acquire (h_FE) of 2N3906 is within the vary of 100 to 300. This quantity could appear small, however we are able to use 2N3906 as a low-power amplifier. However keep watch over its energy dissipation it’s rated for under 625mW of whole energy dissipation.

Conclusion

The 2N3906 is a very talked-about Bipolar Transistor. It’s a PNP Transistor with very excessive collector – emitter voltage (-40V) and comparatively low collector present (-200mA). We will use this transistor as a low-power amplifier in addition to a fast-switching transistor. We noticed the pinout of varied packages of 2N2906 Transistor, few essential parameters and specs and likewise couple of functions.