MTZJT-774.7B

Single Zener Diodes Overview

The MTZJT-774.7B is a single Zener diode manufactured by ROHM Semiconductor, designed for voltage regulation and reference applications. It features a nominal Zener voltage of 4.7 V with a tight tolerance of ±3%. The device supports a maximum power dissipation of 500 mW and operates within an extended temperature range from -65°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 20 µA and a Zener impedance of 80 Ohms at the specified test current. It is housed in a compact 2-pin MSD (Mini DO-35) package, suitable for surface-mount or through-hole mounting depending on the specific variant configuration.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with high precision tolerance
• Operates reliably in extreme thermal environments up to 175°C
• Compact form factor enables dense circuit board layouts

Single Zener Diodes Applications

• Voltage reference circuits in precision measurement systems
• Over-voltage protection stages in consumer electronics
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the exact suffix designation against the manufacturer's latest datasheet to confirm packaging type and tape/reel specifications. Ensure compatibility with RoHS directives if required by your assembly process. Cross-reference pinout configurations carefully as minor variations may exist between different production batches or regional releases. Confirm thermal resistance values for your specific PCB layout conditions.

Single Zener Diodes Selection Notes

Select this component when a low-cost, high-reliability Zener diode is needed for general-purpose voltage clamping. The wide operating temperature range makes it suitable for automotive or industrial environments where standard commercial grade parts may fail. Consider the 500 mW power rating to ensure adequate thermal headroom in your design. The small package size is advantageous for space-constrained portable devices.

Single Zener Diodes Part Context

This part belongs to ROHM's discrete semiconductor portfolio, specifically within their Zener diode line. These components are engineered for robust performance in power management and signal conditioning roles. The MTZJT series is known for its consistency and reliability across various electronic assemblies, supporting both mass-market and specialized industrial applications.

Single Zener Diodes Replacement Considerations

Consult official substitution guides for equivalent parts with matching voltage, power, and package dimensions. Verify that any alternative component meets the same thermal and electrical specifications before integration.