STMicroelectronics BD438 BJTs
PNP BJT Transistor, 45V, 4A, 3MHz, SOT-32
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
BD438
Detailed Description
PNP BJT Transistor, 45V, 4A, 3MHz, SOT-32
Package
TO-225AA, TO-126-3
Lifecycle Status
Active
Datasheet
BD438 Datasheet
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Technical Specifications
STMicroelectronics BD438 BJTs technical specifications.
General
Package / Case
TO-225AA, TO-126-3
Mounting Type
Through Hole
Operating Temperature
150°C (TJ)
Lifecycle Status
Active
Dc Current Gain Hfe Min IC Vce
30 @ 10mA, 5V
Power Max
36 W
Frequency Transition
3MHz
Transistor Type
PNP
Current Collector IC Max
4 A
Voltage Collector Emitter Breakdown Max
45 V
Alternate Parts Comparison (BD438 vs BD140-16 vs BD237 vs BD139-16)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 | TO-225AA, TO-126-3 |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole |
| Operating Temperature | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) | 150°C (TJ) |
| Lifecycle Status | Active | Active | Active | Active |
| Current Collector Cutoff Max | 100µA | 100nA (ICBO) | 100µA (ICBO) | 100nA (ICBO) |
| Current Collector IC Max | 4 A | 1.5 A | 2 A | 1.5 A |
| Dc Current Gain Hfe Min IC Vce | 30 @ 10mA, 5V | 100 @ 150mA, 2V | 25 @ 1A, 2V | 100 @ 150mA, 2V |
| Power Max | 36 W | 1.25 W | 25 W | 1.25 W |
| Transistor Type | PNP | PNP | NPN | NPN |
| Vce Saturation Max Ib IC | 600mV @ 200mA, 2A | 500mV @ 50mA, 500mA | 600mV @ 100mA, 1A | 500mV @ 50mA, 500mA |
| Voltage Collector Emitter Breakdown Max | 45 V | 80 V | 80 V | 80 V |
| Action |
Cross Reference
Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .
More Parts in BJTs
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
