2N3904BU Transistor Datasheet & Specifications
NPN
TO-92
General Purpose
onsemi
VCEO
40V
Ic Max
200mA
Pd Max
625mW
hFE Gain
100
Quick Reference
The 2N3904BU is a NPN bipolar transistor in a TO-92 package by onsemi. This datasheet provides complete specifications including 40V breakdown voltage and 200mA continuous collector current. Download the 2N3904BU datasheet PDF above for detailed pinout diagrams and application circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | onsemi | Original Manufacturer |
| Package | TO-92 | Physical mounting |
| Transistor Type | BJT | Bipolar Junction Transistor |
| VCEO | 40V | Breakdown voltage |
| Ic | 200mA | Collector current |
| Pd | 625mW | Power dissipation |
| DC Current Gain | 100 | hFE / Beta |
| Frequency | 300MHz | Transition speed (fT) |
| VCEsat | 200mV | Saturation voltage |
| Vebo | 6V | Emitter-Base voltage |
| Cutoff Current | 50nA | Leakage (ICBO) |
| Temp | -55℃~+150℃ | Operating temp |
Equivalent Transistors & Alternatives
| Part | Type | Package | VCEO | Ic | Pd |
|---|---|---|---|---|---|
| 2SD1616A(RANGE:200-400) | NPN | TO-92 | 60V | 1A | 750mW |
| ZTX455 | NPN | TO-92 | 140V | 1A | 1W |
| ZTX694B | NPN | TO-92 | 120V | 500mA | 1.5W |
| ZTX450 | NPN | TO-92 | 45V | 1A | 1W |
| 2N4401BU-HXY | NPN | TO-92 | 40V | 600mA | 625mW |
| KTC3202-Y-HXY | NPN | TO-92 | 40V | 600mA | 625mW |
| KSP8099TF-HXY | NPN | TO-92 | 160V | 600mA | 625mW |
| KN4401-HXY | NPN | TO-92 | 40V | 600mA | 625mW |
| NTE297-HXY | NPN | TO-92 | 160V | 600mA | 625mW |
| 2N6517-TA | NPN | TO-92 | 350V | 500mA | 625mW |