SZ1SMA5927BT3G

Single Zener Diodes Overview

The SZ1SMA5927BT3G is a 1.5 W plastic surface mount Zener voltage regulator from the 1SMA59xxBT3G series, manufactured by onsemi. It features a nominal reverse Zener voltage of 12 V with a ±5% tolerance range spanning 11.4 V to 12.6 V. The device operates within a temperature range of −65°C to +150°C and utilizes an SMA (DO-214AC) package. Key electrical characteristics include a maximum dynamic impedance of 6.5 Ω at a test current of 31.2 mA, a maximum reverse leakage current of 0.5 μA at 9.1 V, and a forward voltage of 1.2 V maximum at 200 mA.

Single Zener Diodes Feature Summary

• AEC-Q101 qualified and PPAP capable for automotive applications
• ESD rating of Class 3 (> 16 kV) per Human Body Model
• Flat handling surface designed for accurate placement
• Package design supports top slide or bottom circuit board mounting

Single Zener Diodes Applications

• Automotive electronic circuits requiring unique site and control change requirements
• Voltage regulation in surface mount power supply designs
• Replacement for MELF packages in compact electronics

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'SZ' corresponds to the specific automotive qualification and site control requirements mandated by your project specifications. Confirm compliance with AEC-Q101 standards and PPAP capability during the sourcing phase. Ensure the procurement documentation explicitly references the Pb-Free status and the correct SMA package type to avoid substitution errors.

Single Zener Diodes Selection Notes

Select this component when a 12 V reference is required in a 1.5 W surface mount configuration. The SZ prefix indicates suitability for automotive environments with strict quality controls. Consider the low profile and flat handling surface if automated placement accuracy is critical. Evaluate the thermal resistance and derating curves against the expected ambient operating conditions to ensure reliable performance.

Single Zener Diodes Part Context

This device belongs to the 1SMA59xxBT3G series of 1.5 Watt Plastic Surface Mount Zener Voltage Regulators. The series covers a standard breakdown voltage range from 3.3 V to 68 V. The SZ1SMA5927BT3G variant specifically targets applications demanding higher reliability and specific manufacturing traceability associated with automotive-grade components.

Single Zener Diodes Replacement Considerations

The datasheet identifies this series as an ideal replacement for MELF packages. Cross-reference with other manufacturers offering 12 V, 1.5 W SMA Zener diodes only if mechanical footprint and electrical parameters match exactly.