1N5070SM

Single Zener Diodes Overview

The 1N5070SM is a single Zener diode manufactured by Microchip Technology, designed for surface-mount applications. It features a nominal Zener voltage of 14 V with a tolerance of ±5%. The device is rated for a maximum power dissipation of 3 W and operates in an SQ-MELF package. Key electrical characteristics include a maximum Zener impedance (Zzt) of 6 Ohms and a leakage current of 10 uA at 10.6 V. This component provides reliable voltage regulation in compact electronic circuits.

Single Zener Diodes Feature Summary

• Surface-mount construction in an SQ-MELF package for automated assembly
• High surge rating capability exceeding conventional 1 Watt types
• Metallurgically bonded fused-in-glass construction for stability

Single Zener Diodes Applications

• Voltage regulation in surface-mount circuit boards
• Overvoltage protection for sensitive semiconductor components
• Reference voltage sources in precision analog circuits

Single Zener Diodes Procurement Notes

Verify the manufacturer designation as Microchip Technology, noting the acquisition of Micrel. Confirm the specific SQ-MELF package type and the 14 V / 3 W ratings match the design requirements. Ensure compliance with RoHS standards if required by the application environment. Cross-reference the part number to distinguish between through-hole and surface-mount variants within the same series.

Single Zener Diodes Selection Notes

Select this component when a robust 3 W Zener diode is required in a surface-mount form factor. The SQ-MELF package offers space efficiency compared to axial leads while maintaining high power handling. Consider the ±5% tolerance and 6 Ohm impedance for precision applications. Evaluate thermal management needs given the 3 W power rating in a small footprint.

Single Zener Diodes Part Context

This part belongs to the 1N5070 series of fused-in-glass Zener diodes. The 'SM' suffix denotes the surface-mount variant, distinguishing it from the standard through-hole 1N5070. These diodes are characterized by their metallurgical bonding and enhanced surge capabilities, making them suitable for demanding industrial and commercial environments requiring reliable voltage clamping.

Single Zener Diodes Replacement Considerations

Direct substitutes must match the 14 V Zener voltage, 3 W power rating, and SQ-MELF package. Verify that alternative components offer comparable surge ratings and impedance characteristics. Ensure the replacement maintains the same polarity configuration and thermal performance specifications.