1PGSMA4745HR3G

Single Zener Diodes Overview

The Taiwan Semiconductor 1PGSMA4745HR3G is a surface-mount Zener diode with a nominal voltage of 16V and a tolerance of ±5%. It operates within a junction temperature range of -55°C to +175°C. The device features a DO-214AC (SMA) package, a total power dissipation of 1W at 75°C ambient temperature, and a maximum DC Zener current of 57mA. Electrical characteristics include a test current of 15.5mA, a leakage current of 1µA at 12.2V reverse voltage, and a Zener impedance of 16Ω.

Single Zener Diodes Feature Summary

• Glass passivated chip junction for enhanced reliability
• Built-in strain relief suitable for automated placement
• Low inductance design for high-frequency applications
• Halogen-free compound compliant with IEC 61249-2-21

Single Zener Diodes Applications

• General purpose voltage regulation
• Circuit protection against overvoltage events
• Reference voltage generation in electronic circuits

Single Zener Diodes Procurement Notes

Verify the AEC-Q101 qualification status by confirming the presence of the 'H' suffix in the official part number. Ensure the procurement order specifies the 'G' suffix to guarantee the use of halogen-free green molding compound as defined in the manufacturer's ordering information. Cross-reference the specific datasheet version B2102 to confirm all electrical parameters match the intended application requirements before finalizing the purchase.

Single Zener Diodes Selection Notes

Select this component when a 16V reference with ±5% precision is required in a compact SMA footprint. The low leakage current below 1µA makes it suitable for sensitive analog circuits. Verify that the operating environment stays within the specified thermal limits and that the single-diode configuration aligns with the circuit topology. Consider the matte tin-plated leads for standard soldering processes compatible with JESD22-B102 standards.

Single Zener Diodes Part Context

This component belongs to the 1PGSMA series of 1W surface mount Zener diodes manufactured by Taiwan Semiconductor. The series covers a wide voltage range from 10V to 200V in the DO-214AC package. The 'H' designation indicates automotive-grade qualification under AEC-Q101 standards, while the 'G' suffix denotes halogen-free materials. This specific model represents the 16V variant within the standardized product lineup.

Single Zener Diodes Replacement Considerations

Direct substitutes must share the 16V nominal voltage, ±5% tolerance, and DO-214AC package. Verify equivalent power dissipation ratings and thermal resistance values. Check if alternative manufacturers offer AEC-Q101 qualified versions if automotive compliance is mandatory. Ensure the replacement maintains similar leakage and impedance characteristics for precise regulation performance.