STMicroelectronics BU931 BJTs
TRANS NPN DARL 400V 15A TO-3

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
BU931
Detailed Description
TRANS NPN DARL 400V 15A TO-3
Package
TO-204AA, TO-3
Lifecycle Status
Obsolete
Datasheet
BU931 Datasheet
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Technical Specifications
STMicroelectronics BU931 BJTs technical specifications.
General
Package / Case
TO-204AA, TO-3
Mounting Type
Chassis Mount
Operating Temperature
200°C (TJ)
Lifecycle Status
Obsolete
Current Collector Cutoff Max
100µA
Dc Current Gain Hfe Min IC Vce
300 @ 5A, 10V
Power Max
175 W
Transistor Type
NPN - Darlington
Current Collector IC Max
15 A
Voltage Collector Emitter Breakdown Max
400 V
Alternate Parts Comparison (BU931 vs BU931T vs BU931P vs BU941ZT)
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-204AA, TO-3 | TO-220-3 | TO-247-3 | TO-220-3 |
| Mounting Type | Chassis Mount | Through Hole | Through Hole | Through Hole |
| Operating Temperature | 200°C (TJ) | 175°C (TJ) | 175°C (TJ) | 175°C (TJ) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete |
| Current Collector Cutoff Max | 100µA | 100µA | 100µA | 100µA |
| Current Collector IC Max | 15 A | 10 A | 15 A | 15 A |
| Dc Current Gain Hfe Min IC Vce | 300 @ 5A, 10V | 300 @ 5A, 10V | 300 @ 5A, 10V | 300 @ 5A, 10V |
| Description | -- | -- | -- | -- |
| Detailed Description | -- | -- | -- | -- |
| Power Max | 175 W | 125 W | 135 W | 150 W |
| Transistor Type | NPN - Darlington | NPN - Darlington | NPN - Darlington | NPN - Darlington |
| Vce Saturation Max Ib IC | 1.8V @ 250mA, 10A | 1.8V @ 250mA, 10A | 1.8V @ 250mA, 10A | 1.8V @ 250mA, 10A |
| Action |
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.
