1SMA4764H

Single Zener Diodes Overview

The 1SMA4764H is a single Zener diode manufactured by Taiwan Semiconductor Corporation, designed for surface-mount applications in the DO-214AC (SMA) package. It features a nominal Zener voltage of 100 V with a tolerance of ±5% and a maximum power dissipation of 1.25 W. The device exhibits a maximum dynamic impedance of 350 Ohms and a typical reverse leakage current of 1 µA at 76 V. It operates within a junction temperature range of -55°C to 175°C and holds AEC-Q101 qualification for automotive reliability.

Single Zener Diodes Feature Summary

• Glass passivated junction construction for enhanced stability
• Built-in mechanical strain relief for robustness
• Low inductance design suitable for high-speed switching
• Automotive grade qualification ensuring high reliability

Single Zener Diodes Applications

• Voltage regulation in automotive electronic circuits
• Clamping and protection in surface-mounted systems
• Reference voltage generation in precision applications

Single Zener Diodes Procurement Notes

Verify the specific suffix 'H' indicates AEC-Q101 automotive qualification as per manufacturer documentation. Confirm the package type matches DO-214AC requirements for your PCB layout. Ensure compliance with RoHS and REACH directives if required by your assembly standards. Cross-reference the part number with official distributor catalogs to confirm availability and lead times before finalizing procurement plans.

Single Zener Diodes Selection Notes

Select this component when a 100 V Zener voltage with tight ±5% tolerance is required in a compact SMA package. The 1.25 W power rating supports moderate power dissipation needs. The wide operating temperature range up to 175°C makes it suitable for harsh environments. Automotive qualification is essential for applications meeting AEC-Q101 standards.

Single Zener Diodes Part Context

This part belongs to the 1PGSMA/1SMA series of surface mount Zener diodes from Taiwan Semiconductor. The series offers various voltage ratings from 3.3 V to 200 V in the DO-214AC package. The 'H' suffix typically denotes automotive-grade variants that undergo additional testing for reliability and longevity compared to standard commercial grades.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 100 V Zener voltage, 1.25 W power rating, and DO-214AC package. Verify AEC-Q101 qualification if automotive use is intended. Check dynamic impedance and leakage current specifications to ensure circuit performance compatibility.