SMBG4758A/TR13

Single Zener Diodes Overview

The SMBG4758A/TR13 is a single silicon Zener diode manufactured by Microsemi Corporation, designed for surface-mount applications in the DO-214AA (SMBG) package. It features a nominal Zener voltage of 56 V with a tolerance of ±5% and a maximum power dissipation of 2 W. The device exhibits a maximum Zener impedance of 20 Ohms at the test current of 4.5 mA. It operates within a temperature range of -65°C to +150°C junction temperature. The component contains lead and is not RoHS compliant.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with tight ±5% tolerance for precision circuit protection.
• Engineered for high thermal stability across an extended operating temperature range.
• Utilizes a compact surface-mount SMBG package for efficient PCB integration.

Single Zener Diodes Applications

• Voltage reference circuits requiring precise regulation.
• Over-voltage protection in electronic systems.
• Clamping applications in signal processing paths.

Single Zener Diodes Procurement Notes

Verify compliance requirements carefully as this component contains lead and is explicitly stated as non-RoHS compliant. Confirm that the receiving facility can handle leaded components according to local regulations. Check for end-of-life status or alternative sourcing if long-term supply continuity is required, as legacy Microsemi products may have limited availability.

Single Zener Diodes Selection Notes

Select this component when a 56 V Zener voltage with ±5% accuracy is required in a surface-mount format. Ensure the application can accommodate leaded components due to RoHS non-compliance. Verify that the 2 W power rating and 20 Ohm impedance meet the specific circuit's thermal and dynamic load requirements.

Single Zener Diodes Part Context

This part belongs to the SMBG series of Zener diodes from Microsemi, which are characterized by their robust construction and suitability for general-purpose voltage regulation. The 'A' suffix typically denotes the tighter ±5% tolerance band compared to standard variants. The '/TR13' indicates tape and reel packaging for automated assembly processes.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 56 V Zener voltage, 2 W power rating, ±5% tolerance, and DO-214AA package. Note that many modern equivalents are RoHS compliant; verify if lead-free alternatives are acceptable for the specific application constraints.