BCR129WH6327XTSA1

Overview

The BCR129WH6327XTSA1 is an NPN silicon digital transistor from the BCR129 series, housed in a SOT-323 surface-mount package. It integrates a single NPN transistor with a built-in bias resistor (R1) of 10 kΩ. Key electrical parameters include a collector-emitter voltage (VCEO) of 50 V, a maximum collector current (IC) of 100 mA, and a total power dissipation (Ptot) of 250 mW at a case temperature up to 124°C. The device features a DC current gain (hFE) range of 120 to 630 and a transition frequency (fT) of 150 MHz. It operates within a junction temperature range of -65°C to 150°C and complies with RoHS standards.

Feature Summary

• Integrates an NPN transistor with a 10 kΩ internal bias resistor for simplified circuit design
• Optimized for switching applications including inverters, interface circuits, and driver circuits
• Qualified according to AEC-Q101 automotive standards

Applications

• Switching circuits
• Inverter circuits
• Interface circuits
• Driver circuits

Procurement Notes

Verify the specific suffix WH6327XTSA1 against official Infineon documentation to confirm the SOT-323 packaging and tape-and-reel delivery format. Ensure compliance requirements such as RoHS and AEC-Q101 are explicitly stated in the final datasheet for this exact part number before procurement.

Selection Notes

Select the BCR129W variant specifically when a SOT-323 footprint is required, distinguishing it from the SOT-23 (BCR129) or dual-transistor SOT-363 (BCR129S) options. Confirm that the 10 kΩ integrated base resistor aligns with the target logic drive levels and switching speed requirements for the application.

Part Context

This component belongs to the BCR129 series of NPN silicon digital transistors manufactured by Infineon Technologies. The series offers multiple package configurations, including SOT-23, SOT-323, and SOT-363, to accommodate various board space constraints while providing consistent electrical performance characteristics across the family.

Replacement Considerations

Direct replacements must match the SOT-323 package and 10 kΩ internal resistor configuration. Verify pinout compatibility between BCR129 variants (e.g., BCR129 vs. BCR129W) as pin assignments differ across the series packages.

FAQ

What is the function of the internal resistor in the BCR129?

The BCR129 integrates a 10 kΩ bias resistor connected to the base terminal, which simplifies the driving circuit by eliminating the need for an external base resistor.

How does the BCR129W package differ from the standard BCR129?

The BCR129W utilizes a SOT-323 package, whereas the standard BCR129 uses a SOT-23 package. Both contain a single transistor with a 10 kΩ resistor, but they have different physical dimensions and pin configurations.

Is the BCR129 suitable for automotive applications?

Yes, the BCR129 series is qualified according to the AEC-Q101 standard, making it suitable for use in automotive electronics.