BC847C
Taiwan Semiconductor Corporation
Needs validationmedium risk
BC847C is a close SOT-23 NPN candidate for S9014 when fT and pinout are verified.
Best Alternatives to S9014
S9014 is a high-gain NPN SOT-23 transistor. Alternatives should be checked for pinout, VCEO margin, gain bin, and fT.
AI replacement insight
Electrical riskmedium
hFE, fT, VCEO margin vary.
Package riskmedium
SOT-23 matches, pinout missing.
Firmware risklow
Discrete BJT, no firmware.
Sourcing risklow
Several active catalog options.
Can it be replaced directly?
No pin-compatible S9014 replacement is verified from the provided fields.
Best replacement path
Start with BC847C for similar small-signal use, or 2SC1815 when voltage/current margin matters.
Main risk
Pinout is not verified and gain/speed differ by candidate.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | S9014 | BC847C | 2SC1815 | PBSS4160T | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-23 | SOT-23 | SOT-23 | SOT-23 | SOT-23 — same package; 2SC1815: same package; PBSS4160T: same package; MMBT3904: same package |
| Pinout | 3 pins | 3 pins | 3 pins | 3 pins | 3 pins — functions not shown; 2SC1815: pin functions missing; PBSS4160T: pin functions missing; MMBT3904: pin functions missing |
| Voltage | 45 V | 45 V | 50 V | 60 V | 45 V / 50 V / 60 V / 40 V — no 1.1x margin; 2SC1815: meets 1.1x; PBSS4160T: good margin; MMBT3904: below target |
| Current | 100 mA | 100 mA | 150 mA | 1 A | 100 mA / 150 mA / 1 A / 200 mA — same IC; 2SC1815: higher IC; PBSS4160T: much higher IC; MMBT3904: higher IC |
| Application | amp/switch | amp/switch | 80 MHz | low VCEsat | amp/switch / 80 MHz / low VCEsat / hFE 100-300 — same role; 2SC1815: slower device; PBSS4160T: rebias may change; MMBT3904: gain risk |
Application & sourcing insights
Questions & answers
BC847C is the closest listed small-signal NPN candidate, but pinout, fT, and voltage margin need review.