SMBG5355B/TR13

Single Zener Diodes Overview

The SMBG5355B/TR13 is a surface mount silicon Zener diode manufactured by Microchip Technology, belonging to the SMBG5333B through SMBG5388B series. It provides a nominal Zener voltage of 18 V with a ±5% tolerance, indicated by the 'B' suffix. The device operates in a DO-215AA gull-wing package and features a maximum power dissipation of 5.0 W at a lead temperature below 25°C. Electrical characteristics include a test current (IZT) of 65 mA, a maximum dynamic impedance (ZZ) of 2.5 Ohms, and a maximum reverse current (IR) of 0.5 µA tested at 13 V. The unit is supplied in tape and reel packaging.

Single Zener Diodes Feature Summary

• Surface mount equivalent to JEDEC registered 1N5355B series for high-density mounting
• Provides stable voltage regulation across broad operating current and temperature ranges
• Non-sensitive to electrostatic discharge per MIL-STD-750 method 1020
• Withstands high surge stresses with minimal changes of voltage versus current

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• High-density and low-profile circuit board mounting
• Protection against high surge stresses in electronic circuits

Single Zener Diodes Procurement Notes

Verify component authenticity and datasheet revision status directly with Microchip Technology or authorized distributors. Confirm that the specific ordering suffix matches the required RoHS compliance and packaging format. Ensure procurement channels are verified as the product lifecycle status may affect availability. Cross-reference electrical parameters with the official datasheet before integration into designs.

Single Zener Diodes Selection Notes

Select this component when a 5-watt surface mount Zener diode with an 18 V breakdown voltage and ±5% tolerance is required. The DO-215AA gull-wing package facilitates visible solder connections suitable for automated assembly. Consider thermal derating curves if ambient temperatures exceed standard conditions. Verify compatibility with existing footprint layouts designed for the SMBG series equivalents.

Single Zener Diodes Part Context

This part belongs to the SMBG5333B through SMBG5388B series of surface mount 5.0 watt Zener diodes. These devices are electrically equivalent to the JEDEC registered 1N5333B through 1N5388B series. The series offers a wide selection of voltages from 3.3 V to 200 V with various tolerance options. They utilize a plastic encapsulated body with moisture classification Level 1.

Single Zener Diodes Replacement Considerations

The SMBG5355B is functionally equivalent to the JEDEC registered 1N5355B. Other parts within the SMBG5333B-SMBG5388B series may serve as substitutes if voltage ratings differ. Verify package dimensions and pinout compatibility before substitution.