1N5358BG

Overview

The onsemi 1N5358BG is a 5 Watt Zener diode from the Surmetic 40 series, housed in an axial lead plastic package (Case 017AA). It features silicon-oxide passivated junctions for superior environmental protection. The nominal Zener voltage is 22 V with a tolerance of ±5%. Key electrical parameters include a reverse test current (IZT) of 50 mA, maximum Zener impedance (ZZT) of 3.5 Ω at IZT, and maximum leakage current (IR) of 0.45 mA at VR. The device supports a maximum DC Zener current (IZM) of 216 mA and withstands surge currents up to 180 W for 8.3 ms pulses.

Feature Summary

• Utilizes silicon-oxide passivated junctions for enhanced reliability and environmental protection within an axial lead transfer-molded plastic package.
• Provides tight Zener voltage limits with guaranteed maximums on multiple electrical parameters including impedance and leakage current.
• Offers high surge capability with ratings up to 180 W for short-duration pulses, suitable for transient protection applications.

Applications

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

Procurement Notes

Verify the specific ordering suffix 'G' indicates a Pb-Free package configuration as per onsemi documentation. Confirm that the part number corresponds to the 1N5358B device variant with the specified 22 V nominal rating. Ensure procurement channels provide official datasheets matching document number 98AON21393DD for accurate electrical characteristic validation before integration into design specifications.

Selection Notes

Select this component when a 5 Watt power dissipation rating is required for Zener regulation applications. The 22 V nominal voltage and ±5% tolerance make it suitable for standard reference needs. Consider the axial lead format for through-hole mounting requirements. Evaluate thermal resistance characteristics relative to ambient temperature conditions to ensure junction temperatures remain within the specified -65°C to +200°C operating range during steady-state and pulsed operations.

Part Context

This device belongs to the 1N53 Series of 5 Watt Zener Voltage Regulators manufactured by onsemi. The series covers a wide voltage range from 3.3 V to 200 V, all sharing the same Surmetic 40 mechanical outline and general construction features. The 1N5358B specifically targets the lower end of the mid-voltage spectrum within this high-power family, offering standardized performance metrics consistent with other members of the series.

Replacement Considerations

Compatible substitutes include other 1N5358B variants from different manufacturers adhering to JEDEC standards for 5 Watt Zener diodes. Verify that replacement parts match the Case 017AA physical dimensions and lead spacing. Ensure equivalent electrical parameters, particularly the 22 V nominal voltage, 50 mA test current, and 5 Watt power dissipation capabilities, are met to maintain circuit functionality.