BD544C-S

Overview

The BD544C-S is a PNP silicon power transistor manufactured by Bourns Inc. It is designed for complementary use with the BD543 series. The device features a maximum continuous collector current of 8 A and a power dissipation rating of 70 W at a case temperature of 25°C. It operates within a junction temperature range of -65°C to +150°C.

Feature Summary

• Designed for complementary use with the BD543 series
• High power dissipation capability of 70 W at 25°C case temperature
• Continuous collector current rating of 8 A

Applications

• Power amplification circuits
• Complementary switching applications
• Industrial power control systems

Procurement Notes

Verify the specific suffix 'S' against the manufacturer's official documentation to confirm package type and tape-and-reel specifications. Ensure the requested part matches the exact electrical ratings and thermal characteristics defined in the current datasheet, as variations may exist between similar part numbers in the BD54x series.

Selection Notes

Select this component when a high-current PNP transistor is required for power applications. Consider the 70 W power dissipation limit and the need for adequate heatsinking to maintain performance within the specified operating temperature range. Verify compatibility with the complementary NPN device in the circuit design.

Part Context

The BD544C-S belongs to the BD54x series of PNP silicon power transistors from Bourns. This series is engineered for robust performance in power electronics, offering high current handling and thermal stability. It serves as a key discrete semiconductor solution for designers requiring reliable switching and amplification capabilities.

Replacement Considerations

Consult the official datasheet for direct substitutes within the BD54x family. Verify that any alternative component meets or exceeds the 8 A current and 70 W power requirements while maintaining compatible pinout and voltage ratings.