1PGSMA4740HR3G

Single Zener Diodes Overview

The 1PGSMA4740HR3G is a surface-mount Zener diode manufactured by Taiwan Semiconductor Corporation, designed for general-purpose regulation and protection applications. It features a glass passivated chip junction within a DO-214AC (SMA) package. The nominal Zener voltage is 10V with a tolerance of ±5%, operating at a test current of 25mA. Key electrical parameters include a maximum DC Zener current of 91mA, a regulator impedance of 7Ω at the test current, and a leakage current of 5µA at 7.6V reverse voltage. The device supports a total power dissipation of 1W at 75°C ambient temperature and operates within a junction temperature range of -55°C to +175°C.

Single Zener Diodes Feature Summary

• Glass passivated junction construction for enhanced reliability
• Low inductance design suitable for high-speed switching environments
• Automated placement optimized packaging configuration
• Halogen-free compound compliant with IEC 61249-2-21 standards

Single Zener Diodes Applications

• General purpose voltage regulation circuits
• Transient voltage protection stages
• Reference voltage generation in low-power systems

Single Zener Diodes Procurement Notes

Verify the specific suffix 'HR3G' against official manufacturer documentation to confirm AEC-Q101 qualification status and halogen-free green compound specifications. Ensure the ordering code matches the exact voltage designation required for the target application circuit. Cross-reference datasheet version B2102 for accurate thermal derating curves and absolute maximum ratings prior to final procurement decisions.

Single Zener Diodes Selection Notes

Select this component when a 10V reference is required in a compact SMA footprint. Consider the 7Ω dynamic impedance for regulation precision requirements. Evaluate the 1W power dissipation capability against expected thermal loads using the provided derating curves. Confirm compatibility with automated assembly processes due to the standardized DO-214AC form factor and moisture sensitivity level 1 classification.

Single Zener Diodes Part Context

This part belongs to the 1PGSMA series of surface mount Zener diodes from Taiwan Semiconductor. The series covers a wide voltage range from 10V to 200V in the same DO-214AC package. The 'H' suffix typically indicates automotive grade qualification, while 'G' denotes halogen-free materials. This standardizes supply chain logistics for mixed-voltage designs requiring consistent mechanical footprints.

Single Zener Diodes Replacement Considerations

Direct substitutes must match the 10V nominal voltage, ±5% tolerance, and DO-214AC package. Verify equivalent power dissipation ratings and leakage characteristics. Check if alternative manufacturers offer AEC-Q101 qualified versions if automotive reliability is required. Ensure pinout polarity and marking codes are compatible with existing board silkscreens.