1N5353BG

Overview

The onsemi 1N5353BG is a 5 Watt Zener voltage regulator diode belonging to the 1N53 Series. It features a nominal Zener voltage of 16 V with a ±5% tolerance, operating within a range of 15.2 V to 16.8 V at a test current of 75 mA. The device utilizes silicon-oxide passivated junctions in an axial lead Surmetic 40 (CASE 017AA) plastic package. Key electrical parameters include a maximum Zener impedance of 2.5 Ω at IZT and 75 Ω at IZK, a reverse leakage current of 1 μA at 12.2 V, and a maximum DC Zener current of 295 mA. It supports a steady-state power dissipation of 5 W at 25°C and withstands surge currents up to 180 W for 8.3 ms pulses.

Feature Summary

• Utilizes silicon-oxide passivated junctions for tight limits and superior operating characteristics
• Provides robust protection against electrostatic discharge with a Class 3 rating exceeding 16 kV per Human Body Model
• Capable of handling high surge stresses with a rated surge capacity of up to 180 W at 8.3 ms pulse width
• Features guaranteed maximum limits on multiple electrical parameters including voltage, impedance, and leakage

Applications

• Voltage regulation over broad operating current and temperature ranges
• Protection circuits requiring high surge current handling capabilities
• General-purpose reference voltage sources in industrial equipment

Procurement Notes

Verify that the ordering suffix 'G' corresponds to the Pb-Free package designation as specified in the datasheet. Confirm the component matches the Surmetic 40 CASE 017AA mechanical outline. Ensure the specific batch meets the JEDEC registered 1N53 series standards. Check for any additional military screening prefixes if required by the application environment.

Selection Notes

Select this component when a precise 16 V reference with ±5% tolerance is required in a high-power axial lead configuration. Consider the thermal resistance characteristics and derating requirements above 25°C for continuous operation. Evaluate the maximum surge current capability against potential transient events in the circuit design to ensure adequate protection margins.

Part Context

This device is part of the comprehensive 1N5333B through 1N5388B series of 5 Watt Zener diodes manufactured by onsemi. The series covers a wide voltage selection from 3.3 V to 200 V, offering flexibility for various regulation needs. All devices share the same axial lead plastic package and utilize similar silicon-oxide passivation technology for consistent environmental protection and reliability.

Replacement Considerations

Equivalent parts include the standard 1N5353B without the Pb-Free suffix or other manufacturers' 1N5353 variants. Verify that replacement components maintain the same 5 W power rating, axial lead form factor, and ±5% voltage tolerance to ensure direct compatibility in existing designs.