SCY99102BDR2G

Overview

The SCY99102BDR2G is a high-voltage silicon avalanche Zener diode manufactured by onsemi. It features a nominal breakdown voltage of 91 V with a tolerance range of 86.45 V to 95.55 V at a test current of 5 mA. The device supports a maximum power dissipation of 500 mW and operates within a junction temperature range of -55 °C to +175 °C. Packaged in the compact SOD-323 surface-mount format, it provides robust overvoltage protection for sensitive electronic circuits.

Feature Summary

• Engineered with avalanche technology for superior ruggedness against transient energy events
• Optimized for high-temperature reliability with an extended operating range up to 175 °C
• Designed for precise voltage regulation and clamping in space-constrained applications

Applications

• Overvoltage protection for automotive electronics
• Voltage reference circuits in industrial control systems
• Transient voltage suppression in consumer electronics

Procurement Notes

Verify the specific suffix 'D2G' confirms RoHS compliance and lead-free status as per manufacturer specifications. Confirm package marking codes match the SOD-323 footprint requirements for your PCB layout. Ensure the ordering part number aligns with the required tape-and-reel quantity for automated assembly processes.

Selection Notes

Select this component when a stable 91 V reference is required under high thermal stress conditions. The SOD-323 package offers a balance between power handling and board space efficiency. Consider the ±5% tolerance for precision applications requiring tight voltage regulation margins.

Part Context

This component belongs to onsemi's high-voltage Zener diode portfolio, designed for demanding environments. It complements lower voltage options in the series, providing a solution for mid-range clamping applications where standard rectifiers lack sufficient breakdown voltage ratings.

Replacement Considerations

Consult official cross-reference guides for equivalent parts from other manufacturers. Verify that any substitute matches the 91 V nominal voltage, 500 mW power rating, and SOD-323 package dimensions to ensure mechanical and electrical compatibility.

FAQ

What is the maximum junction temperature for the SCY99102BDR2G?

The maximum operating junction temperature is +175 °C.

Does this diode support automotive grade standards?

Yes, the product line is qualified for automotive applications, though specific AEC-Q101 certification should be verified against the latest datasheet.