SMAJ4740E3/TR13

Single Zener Diodes Overview

The SMAJ4740E3/TR13 is a unidirectional transient voltage suppression diode manufactured by Microchip Technology. It features a 400W peak pulse power dissipation capability and operates in the SMA (DO-214AC) surface-mount package. The device provides a standoff voltage of 36V with a breakdown voltage range of 38V to 41V. It handles a maximum clamping voltage of 58.3V at a peak pulse current of 6.9A. The component supports an operating temperature range from -55°C to +150°C.

Single Zener Diodes Feature Summary

• Provides robust protection against high-energy transients induced by inductive load switching and lightning events.
• Designed for high-density mounting applications due to its low-profile surface-mount form factor.
• Maintains stable voltage regulation across a broad spectrum of operating currents and temperatures.

Single Zener Diodes Applications

• Protection of sensitive electronics on ICs, MOSFETs, and sensor signal lines.
• Surge suppression in consumer, computer, industrial, automotive, and telecommunication equipment.
• Voltage clamping for data bus and communication interface lines.

Single Zener Diodes Procurement Notes

Verify the specific part number suffix against official Microchip documentation to confirm exact tolerance and packaging specifications. Ensure that the ordering information matches the required electrical characteristics for the target application. Cross-reference datasheet parameters such as breakdown voltage and clamping limits before finalizing procurement decisions.

Single Zener Diodes Selection Notes

Select this component when circuit design requires a 400W transient suppression rating in a compact SMA package. Consider the 36V standoff voltage and unidirectional configuration for DC line protection. Evaluate thermal management requirements based on the specified junction-to-lead thermal resistance and maximum operating temperature limits.

Single Zener Diodes Part Context

This component belongs to the SMAJ series of transient voltage suppressors produced by Microchip Technology. The series offers various voltage ratings within the same physical footprint, allowing for flexible design integration. The 'e3' designation indicates lead-free compliance, while '/TR13' specifies tape and reel packaging for automated assembly processes.

Single Zener Diodes Replacement Considerations

Consult official Microchip substitution guides for verified equivalents. Generic replacements may not match the specific clamping characteristics or thermal performance of the original component.