1N5338BG

Single Zener Diodes Overview

The onsemi 1N5338BG is a 5 Watt Surmetic 40 Zener Voltage Regulator featuring silicon-oxide passivated junctions. It provides a nominal reverse Zener voltage of 5.1 V with a ±5% tolerance, operating within a range of 4.85 V to 5.36 V at a test current of 240 mA. The device supports a maximum steady-state power dissipation of 5 W and withstands up to 180 W surge ratings for 8.3 ms pulses. It operates across a temperature range of -65°C to +200°C, housed in an axial lead plastic package.

Single Zener Diodes Feature Summary

• Utilizes silicon-oxide passivated junctions for superior electrical characteristics
• Provides robust protection against electrostatic discharge events exceeding 16 kV
• Features high surge current capability for transient energy absorption
• Guarantees strict limits on multiple key electrical parameters

Single Zener Diodes Applications

• Voltage regulation in power supply circuits
• Transient voltage suppression in electronic systems
• Reference voltage generation for measurement equipment

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix 'G' confirms the package is Pb-Free as indicated in the datasheet. Ensure the required Zener voltage tolerance aligns with the standard ±5% specification associated with the B suffix. Confirm that the thermal management design accommodates the specified junction-to-lead thermal resistance values under intended operating conditions.

Single Zener Diodes Selection Notes

Select this component when a 5.1 V reference with moderate precision is required in a high-power axial package. The device is suitable for applications demanding high surge handling capabilities alongside stable DC voltage regulation. Consider the thermal derating requirements if ambient temperatures exceed 25°C or if continuous operation near the maximum power dissipation limit is anticipated.

Single Zener Diodes Part Context

This part belongs to the 1N53 Series of 5 Watt Zener diodes manufactured by onsemi. The series covers a broad voltage spectrum from 3.3 V to 200 V, utilizing a standardized Surmetic 40 (CASE 017AA) axial lead package. The 1N5338B variant specifically targets the 5.1 V nominal voltage segment within this comprehensive regulator lineup.

Single Zener Diodes Replacement Considerations

Compatible equivalents include the Microsemi MSP1N5338B and Vishay 1N5338B variants. Verify that substitute parts maintain identical 5 W power ratings, ±5% voltage tolerance, and compatible axial lead dimensions for direct mechanical replacement.