Product Overview
The BC857BW from Nexperia is a 45V, 100 mA PNP general-purpose bipolar junction transistor in a tiny SOT-323 (SC-70) package. With hFE of 220-475 (B-group), 100 MHz transition frequency, and low saturation voltage, it is AEC-Q101 qualified (W-Q variant) and suitable for general-purpose switching and amplification in space-constrained automotive, industrial, and consumer applications.
Key Specifications
| Polarity | PNP |
| VCEO (max) | -45V |
| VCBO (max) | -50V |
| VEBO (max) | -5V |
| IC (max) | -100 mA (continuous), -200 mA (peak) |
| hFE (B-group) | 220 to 475 @ VCE=-5V, IC=-2mA |
| VCE(sat) (max) | -250 mV @ IC=-100mA, IB=-5mA |
| fT | 100 MHz minimum |
| ICBO (max) | -15 nA @ VCB=-20V |
| Ptot | 200 mW @ Tamb=25°C |
| Rth(j-a) | 625 K/W (on FR4 PCB) |
| Operating Temperature | -65°C to +150°C |
| Package | SOT-323 / SC-70 (2.0×1.25×0.95 mm) |
Features
- PNP general-purpose transistor in ultra-small SOT-323 package
- High current gain: hFE 220-475 (B-group, tight binning)
- Low VCE(sat): 250 mV max for efficient switching
- 100 MHz transition frequency for RF/IF applications
- Low collector-base leakage: 15 nA max
- Complementary NPN types: BC847BW, BC846BW
- AEC-Q101 qualified (BC857BW-Q variant)
- Space-saving: 2.0×1.25 mm footprint
Applications
- General-purpose switching and signal amplification
- Load switching and driver circuits
- Audio preamplifier and signal processing
- Automotive sub-system control
English 
简体中文 
Español 
العربية