1N5383B

Overview

The onsemi 1N5383B is a 5 Watt Zener voltage regulator diode housed in an axial lead Surmetic 40 (Case 017AA) plastic package. It features a nominal Zener voltage of 150 V with a ±5% tolerance, resulting in a range of 142.5 V to 157.5 V at the test current of 8 mA. The device exhibits a maximum Zener impedance of 330 Ohms and a reverse leakage current of 1 µA at 114 V. It supports a maximum DC Zener current of 31.6 mA and withstands a non-repetitive surge current of up to 3.0 A for an 8.3 ms pulse width.

Feature Summary

• Utilizes silicon-oxide passivated junction technology for tight electrical limits and superior operating characteristics.
• Provides high surge capability with ratings up to 180 W for 8.3 ms pulses.
• Offers robust environmental protection through void-free, transfer-molded thermosetting plastic packaging.
• Includes high electrostatic discharge immunity rated at Class 3 (>16 kV) per the Human Body Model.

Applications

• Voltage regulation across broad operating current and temperature ranges.
• Protection against transient overvoltage events in electronic circuits.
• Reference voltage generation within power supply architectures.

Procurement Notes

Verify that the ordered part number matches the specific JEDEC designation required for the application. Confirm whether the 'G' suffix is necessary if lead-free compliance is mandated by project specifications. Ensure the procurement documentation references the correct Surmetic 40 case outline to guarantee mechanical fitment during assembly.

Selection Notes

Select this component when a precise 150 V regulation point is required with strict tolerance limits. The 5 W power dissipation rating necessitates adequate thermal management via lead length or heat sinking. Consider the specific impedance and leakage parameters to ensure compatibility with the target circuit's sensitivity requirements.

Part Context

This device belongs to the 1N53 Series, a comprehensive lineup of 5 Watt Zener diodes covering voltages from 3.3 V to 200 V. The series is characterized by its axial lead configuration and standardized plastic encapsulation, designed to provide reliable performance in common industrial and commercial environments while maintaining consistent electrical parameters.

Replacement Considerations

Cross-reference other manufacturers offering the 1N5383B designation to verify pinout and package dimensions match Case 017AA. Ensure substitute parts meet the same 5 W power dissipation and 150 V nominal voltage specifications without compromising the required ±5% tolerance.

FAQ

What is the maximum steady-state power dissipation?

The maximum steady-state power dissipation is 5 Watts at a lead temperature of 25°C.

How is polarity indicated on the component?

Polarity is identified by a color band on the cathode end of the axial lead package.

What is the maximum junction temperature?

The maximum operating junction temperature is 150°C for DC conditions, though it can reach 200°C for pulsed conditions with low duty cycles.