1N5356B-TP

Overview

The MCC 1N5356B-TP is a silicon unidirectional Zener diode with a nominal voltage of 19V and ±5% tolerance. It operates in a DO-15 axial leaded package, providing a maximum power dissipation of 5W at a lead temperature of 75°C. Key electrical parameters include a test current of 65mA, a maximum dynamic impedance of 3Ω, and a maximum reverse leakage current of 0.5µA at 14.4V. The device supports a maximum regulator current of 250mA and can withstand a surge current of 0.4A for an 8.3ms pulse width.

Feature Summary

• Epoxy encapsulation meets UL 94 V-0 flammability rating
• Lead-free finish compliant with RoHS standards
• High thermal resistance design allows operation up to 200°C junction temperature

Applications

• Voltage regulation circuits
• Overvoltage protection systems
• Reference voltage generation

Procurement Notes

Verify the specific suffix designation when ordering to confirm compliance status. The standard -TP suffix indicates lead-free and RoHS compliance. An additional -HF suffix is available upon request for halogen-free requirements. Confirm that the procurement channel is an authorized distributor to ensure genuine parts and full traceability as per manufacturer guidelines.

Selection Notes

Select this component for applications requiring a 19V reference or regulation point with moderate power handling capabilities. Ensure the circuit design accounts for the 67mW/°C power derating factor above 75°C lead temperature. Verify that the expected surge currents remain within the specified 0.4A limit for non-repetitive square-wave pulses to prevent device degradation.

Part Context

This part belongs to the 1N5338B through 1N5388B series of 5-watt Zener diodes manufactured by Micro Commercial Components. The series covers a wide voltage range from 5.1V to 200V, all utilizing the same DO-15 plastic encapsulated package. The 1N5356B variant specifically targets the 19V segment of this high-power axial-leaded lineup.

Replacement Considerations

Cross-reference with other manufacturers' 1N5356B equivalents. Verify that substitute components match the 19V nominal voltage, 5W power rating, and DO-15 package dimensions. Ensure the replacement also meets the required ±5% tolerance and thermal characteristics.