1N4745A,133

Overview

The Nexperia 1N4745A,133 is a low voltage regulator diode housed in a hermetically sealed SOD66 (DO-41) glass package. It provides a nominal Zener voltage of 16 V with a tolerance of ±5%. The device supports a maximum power dissipation of 1 W and operates within a junction temperature range of -65 °C to +200 °C. Key electrical characteristics include a test current of 15.5 mA, a differential resistance of 16 Ohms, and a maximum reverse leakage current of 5 µA at 12.2 V.

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

Selection Notes

Select this component when a stable 16 V reference is required in through-hole designs. Ensure the circuit can handle the specified test current of 15.5 mA for accurate regulation. Consider the thermal resistance from junction to tie-point if heat sinking is utilized. Verify that the application does not exceed the absolute maximum ratings for forward current or non-repetitive peak reverse current.

Part Context

This part belongs to the 1N4728A to 1N4749A series of voltage regulator diodes manufactured by Nexperia. The series offers nominal working voltages ranging from 3.3 V to 24 V. All types share the same SOD66 axial leaded package and hermetically sealed construction, providing a consistent form factor for various voltage regulation needs within the same product family.

Replacement Considerations

Direct substitutes include the 1N4745A from onsemi. Verify pinout compatibility and ensure the replacement meets the 16 V Zener voltage and 1 W power dissipation requirements.