The Infineon BCR198WE6327BTSA1 is a PNP pre-biased transistor — a single device that integrates a bipolar transistor with two 47 kOhm resistors (R1 base, R2 emitter-base) in an SC-70 (SOT-323) surface-mount package. The built-in bias network reduces external component count and board area in switching and interface applications where a PNP transistor with a defined base bias is needed. Rated for a collector-emitter breakdown of 50 V and a continuous collector current of 100 mA, with a transition frequency of 190 MHz. The 250 mW power dissipation limit in the SC-70 package sets the thermal ceiling — for continuous loads near 100 mA, derate the collector current or duty cycle to stay inside the package's dissipation capability.
Obsolete — what that means for sourcing
The BCR198WE6327BTSA1 carries an obsolete lifecycle status. Every unit we quote is sourced through our broker network and inspected for marking consistency, date-code traceability, and package integrity before shipment. Because the part is obsolete, the buyer should qualify the replacement or second-source option at the board level. The pre-biased PNP family from Infineon (BCR series) includes many pin-compatible variants with different resistor ratios; a cross-reference search against the 47 kOhm / 47 kOhm divider is the first step if a direct drop-in substitute is needed.