1N5356C/TR12

Overview

The Microchip Technology 1N5356C/TR12 is a silicon 5-watt Zener diode with a nominal voltage of 19 V and a tight tolerance of ±2%. It operates in the -65°C to +150°C range, dissipating up to 5 watts at 25°C. The device features a maximum reverse leakage current of 0.5 µA and a dynamic impedance of 3.0 ohms. Packaged in an axial T-18 case with tape-and-reel delivery, it provides stable voltage regulation for high-power applications.

Feature Summary

• Provides precise voltage regulation within a ±2% tolerance band
• Capable of handling high surge stresses and steady-state power dissipation
• Features flexible axial-lead mounting terminals for through-hole integration

Applications

• High-power voltage regulation circuits
• Surge protection systems requiring robust thermal performance
• Precision reference voltage generation in industrial equipment

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm RoHS compliance status via the e3 suffix documentation. Ensure proper handling procedures are followed due to the specific moisture classification level. Validate that the tape-and-reel packaging meets standard EIA-296 requirements for automated assembly processes.

Selection Notes

Select this component when a 19 V reference with strict ±2% accuracy is required. Consider the 5-watt power rating and low thermal resistance for heat-sinked designs. Evaluate the operating temperature range against environmental conditions. Compare dynamic impedance characteristics with circuit sensitivity requirements to ensure adequate noise performance.

Part Context

This part belongs to the JEDEC registered 1N5333B through 1N5388B series of 5-watt Zener diodes manufactured by Microsemi (now Microchip). The series covers a wide voltage range from 3.3V to 200V. The 'C' suffix specifically denotes the tighter ±2% voltage tolerance compared to standard B or A suffix variants.

Replacement Considerations

Equivalent parts include other 19V 5W Zener diodes with ±2% tolerance such as the 1N5356B (±5%) if looser tolerance is acceptable. Verify pinout compatibility and thermal management capabilities before substitution.