1SMA4737A

Single Zener Diodes Overview

The NextGen Components 1SMA4737A is a surface-mount unidirectional Zener diode housed in the DO-214AC (SMA) package. It features a nominal Zener voltage of 7.5V with a test current of 4mA and a maximum dynamic impedance of 34Ω at that current. The device supports a peak pulse power dissipation of 1.0W and operates within a junction temperature range of -55°C to +150°C. It includes built-in strain relief, a glass-passivated junction, and complies with RoHS III and REACH standards.

Single Zener Diodes Feature Summary

• Glass passivated junction for enhanced reliability
• Built-in mechanical strain relief
• Low inductance design suitable for high-speed switching
• High temperature soldering capability up to 260°C

Single Zener Diodes Applications

• General regulation and voltage reference functions
• Over-voltage protection circuits
• Surface-mounted electronic designs requiring small plastic packages

Single Zener Diodes Procurement Notes

Verify the specific marking code '737A' on the component body to confirm authenticity against the official specification sheet. Ensure procurement matches the Tape/Reel packaging format. Confirm compliance requirements such as RoHS III and Halogen Free status align with project specifications before finalizing orders.

Single Zener Diodes Selection Notes

Select this component when a 7.5V Zener reference is required in an SMA footprint. Consider its low leakage current characteristics and wide operating temperature range for demanding environments. Verify that the 1.0W peak pulse power rating meets the transient protection needs of the target circuit application.

Single Zener Diodes Part Context

This part belongs to the 1SMA series of SMD Zener diodes manufactured by NextGen Components. The series covers a broad voltage range from 3.3V to 330V in the standard DO-214AC package. The 1SMA4737A specifically addresses the 7.5V segment of this lineup, offering standardized performance for general-purpose voltage regulation tasks.

Single Zener Diodes Replacement Considerations

Cross-reference part numbers include MDD/1SMA4737A. Verify pinout compatibility and electrical parameter tolerances before substituting with other manufacturers' equivalents in existing designs.

Single Zener Diodes FAQ

What is the marking code for the 1SMA4737A?

The standard marking code printed on the case surface is '737A'.

Is the 1SMA4737A bidirectional?

No, the datasheet classifies the 1SMA4737A as a unidirectional type Zener diode.