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
Quick Jump:
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
Alternate 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 | |
|---|---|---|---|---|
| Package / Case | TO-226-3, TO-92-3 Long Body | 6-TSSOP | TO-236-3, SC-59, SOT-23-3 | TO-236-3, SC-59, SOT-23-3 |
| Mounting Type | Through Hole | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) |
| Lifecycle Status | Obsolete | Production | Production | Production |
| Current Collector Cutoff Max | 100nA | 15nA (ICBO) | 15nA (ICBO) | 15nA (ICBO) |
| Current Collector IC Max | 100 mA | 100mA | 100 mA | 100 mA |
| Dc Current Gain Hfe Min IC Vce | 180 @ 2mA, 5V | 420 @ 2mA, 5V | 420 @ 2mA, 5V | 110 @ 2mA, 5V |
| Power Max | 625 mW | 380mW | 300 mW | 300 mW |
| Transistor Type | PNP | 2 NPN (Dual) | NPN | NPN |
| Vce Saturation Max Ib IC | 650mV @ 5mA, 100mA | 600mV @ 5mA, 100mA | 600mV @ 5mA, 100mA | 600mV @ 5mA, 100mA |
| Voltage Collector Emitter Breakdown Max | 45 V | 45V | 45 V | 45 V |
| Number of Pins | -- | 6 | 3 | 3 |
| 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.
