2N3904BU Transistor Datasheet & Specifications
NPNTO-92General Purpose
VCEO
40V
Ic Max
200mA
Pd Max
625mW
Gain
100
Quick Reference
The 2N3904BU is a NPN bipolar transistor in a TO-92 package. This datasheet provides complete specifications including 40V breakdown voltage and 200mA continuous collector current. Download the 2N3904BU datasheet PDF below for detailed pinout diagrams and application circuits.
Technical Specifications
| Parameter | Value | Description |
|---|---|---|
| Manufacturer | onsemi | Original Manufacturer |
| Package | TO-92 | Physical mounting |
| VCEO | 40V | Breakdown voltage |
| IC Max | 200mA | Collector current |
| Pd Max | 625mW | Power dissipation |
| Gain | 100 | DC current gain |
| Frequency | 300MHz | Transition speed |
| VCEsat | 200mV | Saturation voltage |
| Vebo | 6V | Emitter-Base voltage |
| Temp | -55℃~+150℃ | Operating temp |
Direct Replacements & Alternatives
| Part | Type | Package | VCEO | Ic | Pd |
|---|---|---|---|---|---|
| ZTX450 | NPN | TO-92 | 45V | 1A | 1W |
| 2N4401BU-HXY | NPN | TO-92 | 40V | 600mA | 625mW |
| KTC3202-Y-HXY | NPN | TO-92 | 40V | 600mA | 625mW |
| KN4401-HXY | NPN | TO-92 | 40V | 600mA | 625mW |
| MPSA13-TA | NPN | TO-92 | 30V | 500mA | 625mW |
| S9014-TA(RANGE:200-600) | NPN | TO-92 | 45V | 100mA | 450mW |
| BC547CBK | NPN | TO-92 | 45V | 100mA | 500mW |
| 2N3904 | NPN | TO-92 | 40V | 200mA | 625mW |
| D882S-TA(RANGE:200-400) | NPN | TO-92 | 30V | 3A | 625mW |
| KSD471A-TA | NPN | TO-92 | 30V | 1A | 800mW |