3SMAJ5947BHE3-TP

Single Zener Diodes Overview

The 3SMAJ5947BHE3-TP is a single Zener diode manufactured by Micro Commercial Components (MCC). It features an 82 V nominal Zener voltage with a ±5% tolerance and a maximum power dissipation of 3 W. The device operates within a junction temperature range of -55°C to 150°C. Key electrical characteristics include a maximum Zener impedance of 160 Ohms and a reverse leakage current of 1 µA at 62.2 V. It utilizes the DO-214AC (SMA) surface-mount package and holds AEC-Q101 automotive qualification.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with an 82 V nominal breakdown voltage.
• Supports high-power dissipation up to 3 W for robust circuit protection.
• Qualified for automotive applications under the AEC-Q101 standard.
• Operates reliably across an extended industrial temperature range.

Single Zener Diodes Applications

• Automotive electronic circuits requiring voltage clamping
• Protection against transient voltage spikes in sensitive components
• Reference voltage generation in power supply designs

Single Zener Diodes Procurement Notes

This component is officially listed as End-of-Life (EOL) by the manufacturer, with discontinuance notifications dated November 1, 2024. Verification of remaining stock availability through authorized distributors is essential before integration into new designs. Engineers should confirm final unit condition and authenticity via official datasheets and supplier declarations due to the discontinued status.

Single Zener Diodes Selection Notes

Select this part when an 82 V Zener voltage with 3 W power handling is required in an SMA package. Ensure compatibility with AEC-Q101 automotive standards if used in vehicle systems. Verify that the 160 Ohm impedance and 1 µA leakage specifications meet the circuit's noise and precision requirements. Confirm that the surface-mount DO-214AC footprint aligns with the PCB layout constraints.

Single Zener Diodes Part Context

The 3SMAJ5947BHE3-TP belongs to the 3SMAJ59xxB series of high-power Zener diodes from MCC. This series is designed for surface-mount applications requiring higher power ratings than standard small-signal diodes. The 'HE3' suffix typically indicates specific environmental or lead-free compliance attributes consistent with the manufacturer's RoHS directives.

Single Zener Diodes Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the EOL status, engineers must identify alternative components based on matching electrical parameters such as 82 V Zener voltage, 3 W power rating, SMA package, and AEC-Q101 qualification.