CNCHIPDEPOT Original Part
2N3906
2N3906 PNP BJT transistor with 40V VCEO, 200mA collector current, 625mW power and TO-92 package.
Transistor PolarityPNP
Collector-Emitter Voltage (VCEO)40 V
Collector Current (IC)200 mA
DC Current Gain (hFE)100 Min @ IC = -10 mA, VCE = -1 V
Power Dissipation (PD)625 mW
PackageTO-92
Product Overview
The 2N3906 is a PNP bipolar junction transistor designed for general-purpose small-signal amplification and low-current switching. It features a 40V collector-emitter voltage rating, 200mA maximum collector current, and a minimum DC current gain of 100 at 10mA collector current. Its 250MHz transition frequency makes it suitable for analog signal amplification, buffering, and compact control circuits.
Packaged in a TO-92 through-hole package, the 2N3906 is suitable for prototype, repair, and general-purpose PCB designs. It can be used in PNP high-side switching, complementary transistor stages, signal amplification, and other low-power discrete applications.
Specifications
Key electrical, package, and sourcing parameters for quick engineering review.
| Part Number | 2N3906 |
| Brand | CNCHIPDEPOT |
| Package | TO-92 |
| Product Type | BJT |
| Transistor Polarity | PNP |
| Collector-Emitter Voltage (VCEO) | 40 V |
| Collector Current (IC) | 200 mA |
| DC Current Gain (hFE) | 100 Min @ IC = -10 mA, VCE = -1 V |
| Power Dissipation (PD) | 625 mW |
| Collector-Emitter Saturation Voltage (VCE(sat)) | 0.4 V Max (Magnitude) @ IC = -50 mA, IB = -5 mA |
| Transition Frequency (fT) | 250 MHz |
| Operating Temperature | -55°C to +150°C (TJ) |
| Mounting Type | Through Hole |
| Package / Case | TO-226-3 / TO-92-3 / TO-226AA |
| Collector Cutoff Current | 50 nA Max |
Cross Reference & Replacement Information
The following part numbers are commonly reviewed for replacement or compatibility matching. Always verify datasheet, package, pinout, and operating conditions before bulk purchase.
| Target Brand | Target MPN | Replace Type | Notes |
|---|---|---|---|
| ON Semiconductor | 2N3906 | Direct Replacement | Same MPN, widely available from ON Semiconductor. |
| Fairchild Semiconductor | 2N3906 | Cross Reference | Original manufacturer, equivalent electrical characteristics. |
| Texas Instruments | 2N3906 | Compatible Replacement | TI version of the same standard transistor, verify datasheet parameters. |
| STMicroelectronics | BC557 | Functional Alternative | PNP transistor with similar voltage and current ratings, check package. |
Datasheet
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Typical Applications
- PNP high-side switching circuits
- General-purpose signal amplification
- Complementary NPN/PNP transistor stages
- Analog signal buffer circuits
- Low-current load switching
- Prototype and breadboard electronics
Ordering & RFQ Information
- MOQ: Contact sales
- Lead Time: 3–7 working days for stock items
- Packaging: Reel / Tube / Tray depending on package
- Sample Availability: Available on request
- Mass Production Status: 50K+ pcs Stock / Mass Production
FAQ
Can this part replace my current model?
It may be suitable depending on your circuit requirements. Please verify datasheet, package, pinout, and test samples before bulk orders.
Can I request samples?
Yes. Please submit your RFQ with target quantity and application details.
Need this part or a compatible replacement?
Send us your target part number, BOM list, quantity, and technical requirements. CNCHIPDEPOT can help review replacement options and provide RFQ support.
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SMT Assembly Workshop
SMT production and assembly capabilities supporting electronic component and PCB-related manufacturing requirements.
Semiconductor Production
Controlled production environments supporting semiconductor and electronic component manufacturing processes.
Component Testing Equipment
Electrical testing and verification equipment used to support performance checks and product consistency.
Quality Inspection Lab
Quality inspection processes help verify component condition, specifications and production consistency before shipment.