1N5381B

Overview

The onsemi 1N5381B is a single-channel silicon Zener voltage regulator diode from the 1N53 Series, housed in an axial lead DO-201AE (Surmetic 40) plastic package. It provides a nominal reverse Zener voltage of 130 V with a ±5% tolerance and operates at a test current of 10 mA. The device features a maximum steady-state power dissipation of 5 W and a maximum Zener impedance of 190 Ω. It supports a wide operating temperature range from -65°C to +200°C.

Feature Summary

• Utilizes silicon-oxide passivated junctions for superior electrical characteristics and environmental protection.
• Features void-free, transfer-molded thermosetting plastic packaging that resists corrosion and ensures readily solderable leads.
• Offers high surge capability with ratings up to 180 W for non-repetitive pulses lasting 8.3 ms.

Applications

• Voltage regulation in electronic circuits requiring stable reference levels.
• Protection against transient overvoltage events in power systems.
• General-purpose clamping applications within industrial equipment.

Procurement Notes

Verify the specific ordering suffix when purchasing; the 'G' suffix indicates a Pb-Free package configuration. Confirm compliance with RoHS directives if required by your manufacturing standards. Ensure the selected variant matches the exact voltage and tolerance specifications needed for your circuit design before finalizing procurement orders.

Selection Notes

Select this component based on its 130 V nominal rating and 5 W power dissipation capacity. Consider the thermal resistance characteristics and the need for axial lead mounting when designing the PCB layout. Evaluate the surge current handling capabilities relative to potential transient spikes in the target application environment.

Part Context

This part belongs to the 1N53 Series of 5 Watt Zener Voltage Regulators manufactured by onsemi. The series covers a broad voltage range from 3.3 V to 200 V, utilizing robust silicon-oxide passivation technology. These devices are designed for reliable performance in demanding environments, offering tight parameter limits and consistent electrical behavior across the full operating temperature spectrum.

Replacement Considerations

Compatible substitutes include the Microsemi MQ1N5381BE3 and Diodes Inc. 1N5381B-T. Verify that replacement parts match the 130 V nominal voltage, 5 W power rating, and DO-201AE package dimensions to ensure mechanical and electrical compatibility.