1N5342C/TR12

Single Zener Diodes Overview

The Microchip Technology 1N5342C/TR12 is a silicon 5-watt Zener diode from the JEDEC registered 1N5333-5388B series. It provides voltage regulation at a nominal Zener voltage of 6.0 V with a tight tolerance of ±2%, indicated by the 'C' suffix. The device operates in a T-18 axial lead package and supports a maximum power dissipation of 5.0 watts at 25°C. Electrical characteristics include a test current of 200 mA, a maximum dynamic impedance of 1.0 ohm, and a maximum reverse current of 1.0 µA tested at 5.4 V. The component withstands a maximum regulator current of 12.7 A and features an operating temperature range from -65°C to +150°C.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with ±2% tolerance for sensitive circuit applications
• Capable of handling high steady-state currents up to 12.7 A when adequately heat sunk
• Features low dynamic impedance for minimal voltage variation across operating currents
• Constructed with void-free transfer molded epoxy meeting UL94V-0 flammability standards

Single Zener Diodes Applications

• Precision voltage reference circuits requiring tight tolerance stability
• High-power protection stages against voltage surges and transients
• Over-voltage clamping in industrial power supply systems
• Voltage regulation in equipment operating within extended temperature ranges

Single Zener Diodes Procurement Notes

Verify the specific C suffix indicates the required ±2% tolerance rather than standard B or A variants. Confirm the TR12 suffix aligns with reel packaging requirements for automated assembly processes. Ensure thermal management design accounts for the 5-watt dissipation rating under actual load conditions. Check for RoHS compliance status if leaded versions are not acceptable for the target application environment.

Single Zener Diodes Selection Notes

Select this component when a 6.0 V regulation point with superior accuracy compared to standard ±5% devices is necessary. The T-18 package allows for through-hole mounting suitable for high-current applications. Consider the thermal resistance specifications to ensure adequate heat sinking is implemented. Verify that the surge current capability meets the peak transient demands of the specific circuit topology.

Single Zener Diodes Part Context

This part belongs to the Microsemi Scottsdale Division 1N5333B through 1N5388B series of silicon Zener diodes. The series offers a wide selection of voltages from 3.3 V to 200 V in a standardized 5-watt axial lead format. The 'C' suffix specifically denotes tighter manufacturing tolerances compared to the standard 'B' suffix devices. These components are designed for robust performance in demanding electronic environments.

Single Zener Diodes Replacement Considerations

Direct substitutes within the same series include other 1N53xxB/C/D variants with different voltage ratings but identical power and package specifications. Cross-reference with SMBJ or SMBG surface mount equivalents if board space constraints require a change in mounting style. Verify that any replacement maintains the required ±2% tolerance and thermal characteristics.