BC373RL1G

Single Bipolar Transistors Overview

The BC373RL1G is a single NPN Darlington transistor manufactured by onsemi. It features a maximum collector current of 1 A and a collector-emitter voltage rating of 80 V. The device is housed in a TO-92 (TO-226AA) surface-mount compatible package with three pins. Key electrical characteristics include a minimum DC current gain of 10,000 at 100 mA and 5 V, and a transition frequency of 200 MHz. Maximum power dissipation is rated at 625 mW, with an operating temperature range spanning from -55 °C to +150 °C.

Single Bipolar Transistors Feature Summary

• High DC current gain capability suitable for sensitive signal amplification
• Robust thermal performance with high junction temperature tolerance
• Compact through-hole compatible packaging for space-constrained designs

Single Bipolar Transistors Applications

• General-purpose switching applications
• Low-level signal amplification circuits
• Driver stages for relays or LEDs

Single Bipolar Transistors Procurement Notes

Verify the specific suffix RL1G against official datasheets to confirm package type and tape-and-reel specifications. Ensure compliance with RoHS directives if required for your assembly process. Cross-reference manufacturer part numbers with distributor listings to avoid confusion with obsolete variants or similar family members that may have different electrical ratings.

Single Bipolar Transistors Selection Notes

Select this component when high current gain is critical for driving loads with minimal base drive current. The 80 V rating provides adequate headroom for low-voltage logic interfaces. Consider the TO-92 package constraints regarding thermal dissipation limits under continuous operation conditions compared to higher-power packages.

Single Bipolar Transistors Part Context

This part belongs to the BC37x series of NPN Darlington transistors designed for general-purpose use. Darlington configurations offer significantly higher beta values than standard bipolar junction transistors, making them ideal for applications requiring high sensitivity. The RL1G suffix typically denotes specific packaging and handling characteristics defined by the manufacturer.

Single Bipolar Transistors Replacement Considerations

Public confirmed substitute: ZTX603 (Diodes Incorporated). Verify pinout compatibility and thermal characteristics before substitution.