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Infineon Technologies BC 817-16 B5003 — Discrete Semiconductors

BC 817-16 B5003 NPN Transistor, 45V 500mA SOT-23-3, Obsolete

MPNBC 817-16 B5003
Obsolete

Infineon BC 817-16 B5003, NPN transistor, 45 V Vce, 500 mA Ic, 170 MHz fT, hFE min 100 at 100 mA, SOT-23-3 package, 330 mW power dissipation.

Infineon Technologies BC 817-16 B5003 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BC 817-16 B5003 specifications
ParameterValue
MountingSurface Mount
FET typeNPN
Voltage - collector emitter breakdown45 V
Current - collector (Ic)500 mA
Current - collector cutoff100nA (ICBO)
DC current gain (hFE) (Min) @ ic, vce100 @ 100mA, 1V
Power - max330 mW
Frequency - transition170MHz
Operating temperature150°C(TJ)
PackageTape & Reel (TR); Cut Tape (CT)
CaseTO-236-3, SC-59, SOT-23-3
Vce saturation (Max) @ ib, ic700mV @ 50mA, 500mA

Product details

NPN transistor in SOT-23-3 — 45 V, 500 mA, 170 MHz

The BC 817-16 B5003 is an NPN bipolar transistor in a three-lead SOT-23-3 surface-mount package. Maximum saturation voltage is 700 mV at 50 mA base drive and 500 mA collector current.

Power dissipation and thermal limits

Maximum power dissipation is 330 mW. The junction temperature rating is 150 °C. In a SOT-23-3 package, the thermal resistance is set by the copper area on the collector pad — keep the trace short and wide to pull heat out of the die.

No official successor part is listed on the lifecycle record. Sourcing is through independent distribution channels. The SOT-23-3 package is standard and the base part number BC 817 remains available in other gain groupings — but this exact suffix is end-of-life stock only.

Frequently asked questions

Is BC817-16 B5003 obsolete?

Yes, the BC 817-16 B5003 is listed as Obsolete. It is no longer manufactured by Infineon. Sourcing is through independent distribution against an RFQ.

What is the SMD code for BC817-16?

The SMD marking code for BC817-16 is typically '1A' or similar — verify against the Infineon marking specification for the exact date/lot code variant. The SOT-23-3 body is small; the marking is a two-character alphanumeric code.

Can I replace BC817-16 B5003 with BC817-25?

The BC817-25 has a different hFE grouping (minimum 160 at 100 mA vs 100 for the -16). If your circuit depends on the gain range, the -25 may work if the base drive is designed for a higher minimum gain. Check the Vce(sat) and Ic ratings — they are the same. The package and pinout are identical.