onsemi BC557B BJTs
TRANS PNP 45V 0.1A TO92
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
BC557B
Detailed Description
TRANS PNP 45V 0.1A TO92
Package
TO-226-3, TO-92-3 Long Body
Lifecycle Status
Obsolete
Datasheet
BC557B Datasheet
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Technical Specifications
onsemi BC557B BJTs technical specifications.
General
Package / Case
TO-226-3, TO-92-3 Long Body
Mounting Type
Through Hole
Operating Temperature
-55°C ~ 150°C (TJ)
Lifecycle Status
Obsolete
Dc Current Gain Hfe Min IC Vce
180 @ 2mA, 5V
Power Max
625 mW
Frequency Transition
320MHz
Transistor Type
PNP
Current Collector IC Max
100 mA
Voltage Collector Emitter Breakdown Max
45 V
Related Parts Comparison (BC557B vs BC847CDW1T1G vs BC847CLT1G vs BC847ALT1G)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) |
| Number of Pins | -- | 6 | 3 | 3 |
| RoHS | -- | Compliant | Compliant | Compliant |
| Lifecycle Status | Obsolete | Production | Production | Production |
| China ROHS | -- | Compliant | Compliant | Compliant |
| Collector Base Voltage Vcbo | -- | 50 V | 50 V | 50 V |
| Collector Emitter Breakdown Voltage | -- | 45 V | 45 V | 45 V |
| Collector Emitter Saturation Voltage | -- | 600 mV | 600 mV | 600 mV |
| Collector Emitter Voltage Vceo | -- | 45 V | 45 V | 45 V |
| Contact Plating | -- | Tin | Tin | Tin |
| Current Rating | -- | 100 mA | 100 mA | 100 mA |
| Element Configuration | -- | Dual | Single | Single |
| 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 .
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Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.
