SMBJ4748AE3/TR13

Single Zener Diodes Overview

The SMBJ4748AE3/TR13 is a single-channel Zener diode manufactured by Microchip Technology, designed for surface-mount applications in the DO-214AA (SMB) package. It features a nominal Zener voltage of 22 V with a tolerance of ±5%. The device supports a maximum power dissipation of 2 W and operates within a temperature range of -65°C to +150°C. Key electrical characteristics include a maximum reverse leakage current of 5 µA at 20.6 V, a forward voltage of 1.2 V at 200 mA, and a maximum Zener impedance of 35 Ohms.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with a 22 V nominal Zener voltage.
• Capable of handling high power dissipation up to 2 W.
• Operates reliably across an extended industrial temperature range.

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Single Zener Diodes Procurement Notes

Verify component authenticity through authorized Microchip distributors or certified suppliers. Confirm RoHS compliance status and check for recent Product Change Notifications (PCNs) regarding manufacturing changes. Ensure the specific reel packaging matches project requirements before finalizing orders.

Single Zener Diodes Selection Notes

Select this component when a 22 V regulation point is required in a compact surface-mount form factor. Consider the 2 W power rating for thermal management needs. Verify that the DO-214AA footprint aligns with the PCB layout constraints and that the operating temperature range meets environmental specifications.

Single Zener Diodes Part Context

This part belongs to the SMBJ47xxA series of Zener diodes from Microchip Technology. These devices are engineered for robust performance in space-constrained designs. The series offers various voltage options within the same physical package, allowing for design flexibility while maintaining consistent mounting and thermal characteristics across different voltage ratings.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering 22 V Zener diodes in the DO-214AA package. Verify that alternative components match the 2 W power rating, ±5% voltage tolerance, and thermal performance specifications to ensure functional compatibility without redesigning the circuit board.