1N5356B

Overview

The onsemi 1N5356B is a single-channel silicon Zener voltage regulator diode with a nominal reverse voltage of 19 V and a maximum steady-state power dissipation of 5 W. It features a ±5% tolerance, a test current (IZT) of 65 mA, and a maximum Zener impedance (ZZT) of 75 Ω at the test current. The device operates within a temperature range of -65°C to +200°C and utilizes an axial lead plastic package (CASE 017AA).

Feature Summary

• Utilizes silicon-oxide passivated junctions for superior operating characteristics.
• Features void-free, transfer-molded thermosetting plastic packaging.
• Provides high surge rating capability up to 180 W at 8.3 ms pulse width.

Applications

• Voltage regulation in electronic circuits.
• Protection against electrostatic discharge (ESD).

Procurement Notes

Verify that the specific part number matches the required JEDEC tolerance designation. Confirm the package type corresponds to the standard axial lead configuration. Ensure compliance with environmental standards if applicable. Review the datasheet for thermal derating requirements above 25°C to ensure proper heat sinking during operation.

Selection Notes

Select this component when a 19 V reference or regulation point is required with moderate power handling capabilities. Consider the 5 W dissipation limit and the need for adequate thermal management based on ambient conditions. Verify that the 75 Ω impedance meets the circuit's dynamic regulation requirements.

Part Context

This device belongs to the 1N53 Series of 5 Watt Surmetic 40 Zener Voltage Regulators. The series covers a wide voltage range from 3.3 V to 200 V, offering tight limits and consistent performance across various industrial applications.

Replacement Considerations

Cross-reference with other manufacturers' 1N5356B equivalents. Verify that any substitute maintains the same 19 V nominal voltage, 5 W power rating, and ±5% tolerance to ensure functional compatibility.