BC373ZL1

Single Bipolar Transistors Overview

The BC373ZL1 is a high-voltage NPN silicon Darlington transistor manufactured by onsemi. It operates in a TO-92 package with a maximum collector-emitter voltage of 80 Vdc and continuous collector current of 1.0 Adc. Total power dissipation is rated at 625 mW at 25°C ambient temperature, derating by 5.0 mW/°C above this threshold. The device features a minimum DC current gain of 10 at 100 mA and 250 mA test conditions. Its current-gain bandwidth product reaches 200 MHz, supporting frequencies up to 100 MHz under standard biasing.

Single Bipolar Transistors Feature Summary

• High-voltage NPN Darlington configuration for robust switching and amplification
• Integrated thermal characteristics suitable for through-hole mounting
• Lead-free packaging available compliant with environmental standards

Single Bipolar Transistors Applications

• High-side driver circuits requiring elevated voltage tolerance
• Audio amplifier stages utilizing Darlington gain properties
• General-purpose switching applications within specified thermal limits

Single Bipolar Transistors Procurement Notes

Verify the specific ordering suffix ZL1 against official documentation to confirm the ammo pack shipping format. Confirm RoHS compliance status as lead-free variants carry distinct suffixes. Validate that the procurement channel sources directly from authorized distributors to ensure component authenticity and traceability.

Single Bipolar Transistors Selection Notes

Select this component when an NPN Darlington structure is required for high-voltage handling up to 80 V. Ensure the application demands a continuous current capacity of 1 A. Verify that the TO-92 package dimensions fit the mechanical constraints. Consider the thermal resistance values if operating near maximum power dissipation limits.

Single Bipolar Transistors Part Context

This part belongs to the BC372/BC373 series of high-voltage Darlington transistors. The BC373 variant specifically provides an 80 V rating compared to the 100 V rating of the BC372. Both share identical pinouts and general electrical characteristics except for breakdown voltages.

Single Bipolar Transistors Replacement Considerations

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