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Infineon Technologies BCR166WE6327HTSA1 — Discrete Semiconductors

BCR166WE6327HTSA1 PNP Pre-Biased Transistor, 50V, 100mA

MPNBCR166WE6327HTSA1
Obsolete

Infineon BCR166WE6327HTSA1 PNP pre-biased transistor, 50 V VCEO, 100 mA IC, 160 MHz fT, built-in R1 4.7 kOhms, R2 47 kOhms, SC-70 SOT-323 package, 250 mW power dissipation.

$0.0500Ref. price · indicative, final on quote
Infineon Technologies BCR166WE6327HTSA1 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BCR166WE6327HTSA1 specifications
ParameterValue
MountingSurface Mount
FET typePNP - Pre-Biased
Voltage - collector emitter breakdown50 V
Current - collector (Ic)100 mA
Current - collector cutoff100nA (ICBO)
DC current gain (hFE) (Min) @ ic, vce70 @ 5mA, 5V
Power - max250 mW
Frequency - transition160 MHz
PackageTape & Reel (TR)
ManufacturerInfineon Technologies
CaseSC-70, SOT-323
Resistor - base (R1)4.7 kOhms
Resistor - emitter base (R2)47 kOhms
Vce saturation (Max) @ ib, ic300mV @ 500µA, 10mA

Product details

What this pre-biased PNP does

The Infineon BCR166WE6327HTSA1 is a PNP pre-biased transistor in a SC-70 SOT-323 package, integrating two bias resistors — a 4.7 kOhm base resistor (R1) and a 47 kOhm base-emitter resistor (R2) — so you can drive it directly from a logic output without adding external resistors.

Infineon lists the BCR166WE6327HTSA1 as obsolete.

Key ratings for the switching decision

The 50 V VCEO rating gives you headroom for 24 V or 48 V industrial rails. The 100 mA continuous collector current covers small relay coils, LED strings, and logic-level translation.

Frequently asked questions

What are the R1 and R2 resistor values for BCR166WE6327HTSA1?

The integrated base resistor R1 is 4.7 kOhms, and the base-emitter resistor R2 is 47 kOhms.

What is the exact replacement for BCR166WE6327HTSA1?

Infineon has not published a direct successor for this specific suffix. The BCR166 base part number covers the family; check current Infineon pre-biased PNP transistors in the SC-70 SOT-323 package for a pin-compatible alternative.