1N5351BG

Overview

The onsemi 1N5351BG is a single-channel Zener voltage regulator diode from the 1N53 Series, designed for robust performance in axial lead applications. It features a nominal Zener voltage of 14 V with a tolerance of ±5%. The device supports a maximum steady-state power dissipation of 5 W at a lead temperature of 25°C and operates within a junction temperature range of -65°C to +200°C. Key electrical parameters include a test current (IZT) of 100 mA, a maximum Zener impedance (ZZT) of 2.5 Ω, and a reverse leakage current (IR) of 1 mA at VR. The component utilizes a Case 017AA plastic package.

Feature Summary

• Utilizes silicon-oxide passivated junctions for tight limits and superior operating characteristics.
• Encased in a void-free, transfer-molded thermosetting plastic package resistant to corrosion.
• Provides high surge capability with ratings up to 180 W for an 8.3 ms pulse width.
• Guarantees maximum limits on multiple electrical parameters including voltage and impedance.

Applications

• Voltage regulation circuits requiring stable reference levels.
• Protection against transient overvoltage events in electronic systems.
• General-purpose clamping applications in industrial environments.

Procurement Notes

Verify that the ordering suffix 'G' corresponds to the Pb-Free package specification as defined by the manufacturer. Confirm the specific part number matches the required Zener voltage and tolerance class before procurement. Ensure compliance with RoHS directives if applicable to the target assembly process. Cross-reference the document number 98AON21393DD for the most current mechanical and electrical data.

Selection Notes

Select this component when a 14 V regulation point is required with a 5 W power handling capacity. The axial lead configuration facilitates through-hole mounting on standard PCB layouts. Consider the thermal resistance characteristics and derating requirements above 25°C for continuous operation. The ±5% tolerance suits applications where precise voltage referencing is necessary but extreme precision is not critical.

Part Context

This device belongs to the 1N53 Series of 5 Watt Surmetic 40 Zener Voltage Regulators. The series covers a wide voltage range from 3.3 V to 200 V, offering consistent performance across various breakdown voltages. The 1N5351B designation specifically identifies the 14 V variant within this family, sharing common mechanical dimensions and packaging standards with other members of the series.

Replacement Considerations

Compatible substitutes include other manufacturers' 1N5351B variants, such as those from Micro Commercial Components (MCC), provided they meet the same 14 V nominal voltage, 5 W power rating, and DO-201AE/Case 017AA package constraints. Verify that replacement parts maintain equivalent surge ratings and leakage current specifications.