1N4707

Overview

The Microchip Technology 1N4707 is a silicon Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 20V with a tolerance of 5%. The device is rated for a maximum power dissipation of 500mW and operates within a temperature range of -65°C to +175°C. Packaged in the DO-35 axial leaded format, it utilizes hermetic sealing and metallurgical bonding for high reliability.

Feature Summary

• Hermetically sealed glass construction
• Internally metallurgically bonded die
• Double plug design for enhanced stability

Applications

• Voltage reference circuits
• Temperature compensated regulation
• Low current voltage limiting

Procurement Notes

Verify the specific suffix (e.g., A, CUR) against the datasheet to confirm exact tolerance and package variations. Ensure the procurement specification matches the required operating temperature range and power derating characteristics. Confirm hermetic sealing requirements if used in harsh environments.

Selection Notes

Select this component when a stable 20V reference is needed in a standard axial package. Consider the 5% tolerance for general regulation or tighter variants if precision is critical. Evaluate thermal management needs as power dissipation decreases above 50°C.

Part Context

This part belongs to the 1N47xx series of Zener voltage regulators manufactured by Microchip Technology. The series offers various voltage options from 1.8V to higher values, all sharing similar robust construction methods suitable for military and industrial standards.

Replacement Considerations

Equivalent parts include the MQ1N4707-1TR and MSP1N4707DUR-1TR. Verify that replacement packages match the DO-35 form factor and that electrical parameters such as impedance and leakage current meet circuit requirements.