SMAZ5945B-E3/61

Single Zener Diodes Overview

The SMAZ5945B-E3/61 is a surface mount power voltage-regulating diode manufactured by Vishay General Semiconductor. It operates within the SMA (DO-214AC) package and provides a nominal Zener voltage of 68 V with a tolerance range of 64.6 V to 71.4 V. The device supports a maximum DC Zener current of 22 mA and features a maximum Zener impedance of 120 Ω at the test current. It exhibits low reverse leakage current, rated at a maximum of 1 µA at 51.7 V. The component is designed for industrial grade applications with an operating junction and storage temperature range spanning from -65 °C to +150 °C.

Single Zener Diodes Feature Summary

• Low profile package suitable for automated placement
• Low Zener impedance and low regulation factor
• Meets MSL level 1 per J-STD-020 with LF maximum peak of 260 °C

Single Zener Diodes Applications

• General purpose voltage regulation
• Circuit protection applications

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix against official documentation to confirm delivery mode and base quantity. The /61 suffix indicates a 7-inch diameter plastic tape and reel format with a base quantity of 1800 units. Confirm RoHS compliance status and material categorization definitions via the manufacturer's official documentation before procurement.

Single Zener Diodes Selection Notes

Select this component when a 68 V Zener voltage with ±5% tolerance is required in a compact SMA (DO-214AC) footprint. Ensure the application accounts for the 500 mW power dissipation limit at 25 °C ambient temperature. Verify that the maximum Zener impedance of 120 Ω meets the circuit's dynamic regulation requirements.

Single Zener Diodes Part Context

This part belongs to the SMAZ5919B through SMAZ5945B series of surface mount power voltage-regulating diodes. The series covers a wide Zener voltage range from 5.6 V to 68 V. All devices in this family share the same SMA (DO-214AC) case configuration and utilize matte tin plated leads for solderability.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.