BC517ZL1G

Single Bipolar Transistors Overview

The BC517ZL1G is an NPN Darlington transistor manufactured by onsemi, housed in a TO-92 package. It features a maximum collector current of 1.2 A and a collector-emitter voltage rating of 30 V. The device provides a minimum DC current gain (hFE) of 30,000. It operates at a maximum junction temperature of 150 °C and is lead-free compliant.

Single Bipolar Transistors Feature Summary

• High current gain capability suitable for sensitive signal amplification
• Robust thermal performance with high maximum junction temperature rating
• Lead-free construction supporting environmental compliance standards

Single Bipolar Transistors Applications

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

Single Bipolar Transistors Procurement Notes

Verify the specific suffix ZL1G against official onsemi documentation to confirm pinout orientation and marking codes. Ensure the component matches the required TO-92 cylindrical package specifications. Confirm RoHS compliance status through the manufacturer's latest datasheet rather than relying solely on distributor descriptions.

Single Bipolar Transistors Selection Notes

Select this component when a high-gain NPN Darlington configuration is required within a low-voltage, moderate-current range. The TO-92 package is appropriate for through-hole mounting in general electronics. Compare the 30,000 hFE minimum against application requirements to ensure adequate drive capability without excessive base current.

Single Bipolar Transistors Part Context

This part belongs to the BC517 series of NPN Darlington transistors. The series is characterized by high current gain and moderate voltage ratings, making it a standard choice for analog and digital switching tasks in consumer and industrial equipment.

Single Bipolar Transistors Replacement Considerations

Cross-reference with BC517 variants from other manufacturers such as Fairchild or NXP. Verify that substitute parts maintain the same 30V V(BR)CEO, 1.2A IC, and TO-92 package dimensions.