2N5968

Overview

The Microchip Technology 2N5968 is a high-power axial-lead Zener diode designed for robust voltage regulation applications. It features a nominal Zener voltage of 5.6 V with a tight tolerance of ±5%. The device is rated for a maximum power dissipation of 5 W, allowing it to handle significant current loads in through-hole configurations. Key electrical characteristics include a maximum reverse leakage current of 5 mA and a Zener impedance of 1 Ohm. It operates reliably across an extended temperature range from -65°C to +175°C junction temperature, ensuring stability in demanding environments.

Feature Summary

• Provides stable voltage regulation at a nominal 5.6 V output level
• Supports high power dissipation up to 5 W for heavy-load applications
• Maintains tight voltage tolerance of ±5% for precision requirements
• Operates effectively across a wide industrial temperature range

Applications

• High-power voltage reference circuits
• Overvoltage protection stages
• Industrial power supply regulation

Procurement Notes

Verify the specific suffix code on the component marking to confirm exact tolerance and thermal rating variations. Confirm RoHS compliance status as manufacturing processes may vary by production batch. Ensure the ordering documentation explicitly lists the 5 W power rating and 5.6 V nominal voltage to avoid substitution errors with lower-power variants.

Selection Notes

Select this component when a through-hole package is required for high-current voltage clamping. The 5 W power rating distinguishes it from standard low-power Zener diodes. Verify that the circuit design can accommodate the 1 Ohm dynamic impedance for accurate regulation. Ensure the PCB layout supports the axial lead spacing and thermal dissipation needs of a 5 W device.

Part Context

The 2N5968 belongs to the legacy military-grade 1N/2N series of Zener diodes manufactured by Microchip. These components are characterized by their rugged construction and ability to withstand harsh environmental conditions. The 2N prefix typically denotes enhanced reliability specifications compared to commercial equivalents, making them suitable for aerospace and defense electronics where long-term stability is critical.

Replacement Considerations

Direct substitutes include the 1N5968 and JANTXV1N5968, which share identical electrical ratings and pinout configurations. Verify that any replacement maintains the same 5 W power dissipation capability and axial package dimensions to ensure mechanical compatibility.