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Best Alternatives to BC847B

Package: TO-236-3, SC-59, SOT-23-3Good-Ark SemiconductorBipolar (BJT)Series: -Package: Tape & Reel (TR) Cut Tape (CT) Digi-Reel®Current - Collector (Ic) (Max): 100 mAVoltage - Collector Emitter Breakdown (Max): 45 VCurrent - Collector Cutoff (Max): 100nA

BC847B is an NPN SOT-23 BJT. The closest listed option is BC817-25, but pinout and gain still need FAE review.

AI replacement insight

Electrical riskmedium

hFE and VCE(sat) may differ.

Package riskmedium

SOT-23 matches, pinout unverified.

Firmware risklow

Discrete BJT has no firmware.

Sourcing risklow

Kept items are active and indexed.

Can it be replaced directly?

No pin-compatible replacement is verified from the supplied evidence.

Best replacement path

Start with BC817-25, then verify pinout, hFE rank, VCE(sat), and stress margin.

Main risk

Pinout is not evidenced and gain ranks differ.

Recommended alternatives

3
BC817-25 package
BC817-25

Yangzhou Yangjie Electronic Technology Co.,Ltd

Needs validationmedium risk

BC817-25 is a close NPN SOT-23 candidate with higher current but lower gain rank.

View details

Alternative comparison matrix

Feature / factorBC847BBC817-25MMBTA44SS8050Compatibility / risk
PackageSOT-23SOT-23SOT-23SOT-23SOT-23 — same package; MMBTA44: same package; SS8050: same package
Pinout3-pin BJT3-pin BJT3-pin BJT3-pin BJT3-pin BJT — pin functions not shown; MMBTA44: pin functions not shown; SS8050: pin functions not shown
Voltage45V45V400V25V45V / 400V / 25V — no extra margin; MMBTA44: much higher VCEO; SS8050: lower VCEO
Current100mA500mA200mA1.5A500mA / 200mA / 1.5A — higher Ic; MMBTA44: higher Ic; SS8050: higher Ic
ApplicationhFE 200-450hFE 160-400hFE 100-300hFE 120-400hFE 160-400 / hFE 100-300 / hFE 120-400 — lower gain rank; MMBTA44: lower gain; SS8050: lower gain range

Application & sourcing insights

Questions & answers

BC817-25 is the closest listed candidate, but it still needs pinout and gain verification.