1N4738A,133

Overview

The Nexperia 1N4738A,133 is a low voltage regulator diode housed in a hermetically sealed SOD66 (DO-41) glass package. It provides a nominal working voltage of 8.2 V with a tolerance of ±5%. The device supports a maximum total power dissipation of 1000 mW and operates within a junction temperature range of -65 °C to +200 °C. Key electrical characteristics include a forward voltage of 1.2 V at 200 mA, a differential resistance of 4.5 Ω, and a reverse current of 0.5 µA at the test current.

Feature Summary

• Hermetically sealed small glass package for reliable operation
• Low voltage stabilization capability
• Wide operating temperature range

Applications

• Low voltage stabilizers

Procurement Notes

Verify the specific ordering suffix matches the required packaging configuration. Confirm that the component meets all applicable environmental compliance standards relevant to the target market. Ensure the supplier provides valid traceability documentation for the manufacturing batch. Cross-reference the datasheet revision date to confirm the technical specifications align with current production standards.

Selection Notes

Select this component when a stable 8.2 V reference is required in through-hole designs. The DO-41 package facilitates easy integration into standard printed circuit board layouts. Consider the thermal resistance characteristics when designing heat dissipation paths for high-power applications. Verify that the operating current remains within the specified limits to maintain regulation accuracy.

Part Context

This part belongs to the 1N4728A to 1N4749A series of voltage regulator diodes manufactured by Nexperia. The series offers various nominal working voltages ranging from 3.3 V to 24 V. All devices in this family share the same hermetically sealed glass package and general structural features while differing in their specific voltage ratings and associated electrical parameters.

Replacement Considerations

Direct replacements must match the 8.2 V nominal voltage, ±5% tolerance, and DO-41 package. Verify that substitute components meet the same power dissipation and thermal requirements.