1N5356BG

Overview

The onsemi 1N5356BG is a silicon Zener voltage regulator diode with a nominal breakdown voltage of 19 V and a ±5% tolerance. It operates within the 1N53 Series, featuring a maximum steady-state power dissipation of 5 W at 25°C lead temperature. The device utilizes an axial-lead Surmetic 40 (Case 017AA) plastic package with a void-free transfer-molded construction. Electrical characteristics include a reverse leakage current of 0.4 mA maximum at 18.05 V and a test current of 65 mA for impedance measurement.

Feature Summary

• Utilizes silicon-oxide passivated junctions to ensure tight electrical limits and superior operating stability.
• Features a corrosion-resistant finish and void-free transfer-molded plastic case for environmental protection.
• Provides high surge current capability with non-recurrent square-wave pulse support.

Applications

• Voltage regulation in power supply circuits
• Protection against overvoltage transients
• Reference voltage generation in electronic systems

Procurement Notes

Verify that the ordering suffix 'G' corresponds to the Pb-Free package designation as defined in the datasheet. Confirm the specific part number matches the 1N5356B device parameters. Ensure compliance with RoHS directives if lead-free status is required for the assembly process. Cross-reference the manufacturer's documentation for any updates regarding soldering techniques or mounting constraints.

Selection Notes

Select this component when a precise 19 V reference with 5% tolerance is required. The 5 W power rating supports applications needing higher thermal handling than standard low-power diodes. The axial lead configuration facilitates through-hole mounting. Consider the thermal resistance characteristics and derating requirements above 25°C ambient temperature for continuous operation.

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. The 1N5356B variant specifically targets the 19 V nominal region. The 'B' suffix indicates the ±5% tolerance class, while the 'G' suffix denotes the availability of a Pb-Free package option.

Replacement Considerations

Compatible replacements include other manufacturers' 1N5356B variants. Verify that substitute parts meet the same 5 W power dissipation and 19 V nominal voltage specifications. Ensure the replacement package matches the Surmetic 40 dimensions for mechanical compatibility.