1SMA4757

Single Zener Diodes Overview

The 1SMA4757 is a single Zener diode manufactured by SMC Diode Solutions, designed for surface-mount applications in the DO-214AC (SMA) package. It features a nominal Zener voltage of 51 V with a power dissipation rating of 1 W and a tolerance of ±5%. The device operates within a junction temperature range of -65°C to 150°C and exhibits a reverse leakage current of 5 µA at 38.8 V. It complies with RoHS3 standards and carries an MSL rating of 1.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with a nominal Zener voltage of 51 V
• Designed for surface-mount assembly using the compact DO-214AC (SMA) footprint
• Capable of handling 1 W power dissipation under specified operating conditions

Single Zener Diodes Applications

• Voltage reference circuits requiring precise 51 V levels
• Over-voltage protection stages in electronic systems
• Clamping applications in signal conditioning paths

Single Zener Diodes Procurement Notes

Verify the specific suffix (e.g., R3G) against the manufacturer's official documentation to confirm exact electrical tolerances and packaging configurations. Ensure compatibility with RoHS3 requirements and confirm the MSL classification matches your assembly process constraints before finalizing procurement orders.

Single Zener Diodes Selection Notes

Select this component when a 51 V Zener voltage is required in a SMA surface-mount package. Consider the 1 W power rating and ±5% tolerance for circuit design margins. Verify that the DO-214AC footprint aligns with the PCB layout and that the operating temperature range meets the environmental demands of the target application.

Single Zener Diodes Part Context

This part belongs to the SMC Diode Solutions discrete semiconductor portfolio, specifically within their single Zener diode line. The 1SMA series utilizes the standard SMA surface-mount case, offering a balance between power handling and board space efficiency for general-purpose voltage regulation tasks.

Single Zener Diodes Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult manufacturer cross-reference guides for parameter-equivalent alternatives.