1N5347BG

Overview

The onsemi 1N5347BG is a 5 Watt Zener diode with a nominal voltage of 10 V and ±5% tolerance. It operates in an axial lead plastic package (Surmetic 40) with a junction-to-lead thermal resistance of 25 °C/W. The device withstands steady-state power dissipation up to 5 W at 25°C, derating linearly above this temperature. Maximum ratings include a junction temperature range of -65°C to +200°C, a maximum surge current capability, and an ESD rating exceeding 16 kV per the Human Body Model.

Feature Summary

• Utilizes silicon-oxide passivated junction technology for improved operating characteristics
• Provides robust protection against electrostatic discharge events
• Features corrosion-resistant external surfaces and readily solderable leads

Applications

• Voltage regulation circuits requiring stable reference levels
• Protection against transient overvoltage conditions
• General-purpose clipping and clamping applications

Procurement Notes

Verify that the ordering suffix 'G' corresponds to the Pb-Free package designation as defined by onsemi. Confirm the specific packaging format matches project requirements, noting that standard boxes contain 1000 units while tape and reel options are available for automated assembly processes.

Selection Notes

Select this component when a precise 10 V reference is required within a 5 W power envelope. Ensure adequate heat sinking or airflow is provided if ambient temperatures exceed 25°C to maintain safe junction temperatures. Verify that the circuit design accommodates the specified leakage current and impedance parameters under expected operating loads.

Part Context

This part 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, utilizing transfer-molded plastic packages designed for common environmental conditions. The 1N5347B variant specifically targets the 10 V segment of this comprehensive lineup.

Replacement Considerations

Cross-reference with other manufacturers offering the 1N5347B specification. Verify mechanical dimensions and electrical tolerances match exactly before substitution.