BCR 503 B6327

Overview

The BCR 503 B6327 is an NPN silicon digital transistor from Infineon Technologies, belonging to the BCR503 series. It features a single configuration housed in an SOT-23-3 surface-mount package. Key electrical parameters include a maximum collector-emitter voltage (VCEO) of 50 V and a continuous collector current of 500 mA. The device incorporates a typical input resistance of 4.7 kOhms with a resistor ratio of 0.21. Minimum DC collector/base gain (hFE) is specified at 50. Operating temperature ranges from -65°C to +150°C.

Feature Summary

• Integrates bias resistors directly with the NPN transistor to simplify circuit design and reduce component count.
• Designed for high-speed switching applications within a compact SMD footprint.
• Capable of handling continuous collector currents up to 500 mA.

Applications

• General-purpose switching circuits
• Driver stages for relays and LEDs
• Logic level translation interfaces

Procurement Notes

Verify availability status as this component may be subject to discontinuation or limited supply constraints. Confirm RoHS compliance details through official documentation before integration. Ensure ordering suffixes match specific packaging requirements such as cut tape or reel formats. Cross-reference part numbers like BCR503B6327HTSA1 for exact manufacturing identifiers.

Selection Notes

Select this component when a single NPN digital transistor with 500 mA current capability and 50 V voltage rating is required. The 4.7 kOhm input resistance suits standard logic drive levels. Compare against other BCR series variants if different gain or resistance values are needed. Ensure the SOT-23-3 package fits the PCB layout constraints.

Part Context

This part belongs to Infineon's BCR digital transistor family, which combines transistors with internal bias networks. The BCR503 variant specifically targets higher current applications compared to lower-current counterparts like the BCR1xx series. It is widely used in consumer electronics and industrial control systems requiring reliable switching performance.

Replacement Considerations

Check for direct substitutes within the BCR503 series or equivalent parts from other manufacturers offering identical pinouts and electrical specifications. Verify that any replacement maintains the same SOT-23-3 package and thermal characteristics.