1N5355BG

Overview

The onsemi 1N5355BG is a single-channel Zener voltage regulator diode from the 1N53 Series, featuring a nominal reverse Zener voltage of 18 V with a ±5% tolerance. It operates within a maximum steady-state power dissipation of 5 W at a lead temperature of 25°C and utilizes an axial lead DO-15 (Case 017AA) package for through-hole mounting. Electrical characteristics include a test current of 65 mA, a maximum Zener impedance of 2.5 Ω, and a maximum reverse leakage current of 500 nA at 13.7 V. The device supports an operating and storage temperature range from -65°C to +200°C.

Feature Summary

• Utilizes silicon-oxide passivated junctions for tight electrical limits and superior operating characteristics.
• Features void-free, transfer-molded thermosetting plastic packaging that provides corrosion resistance and environmental protection.
• Includes high surge rating capability up to 180 W for 8.3 ms pulses.
• Offers ESD protection rated at Class 3 (>16 kV) per the Human Body Model.

Applications

• Voltage regulation in electronic circuits requiring stable reference voltages.
• Protection against transient overvoltage events via surge absorption.
• General-purpose clamping applications in industrial or consumer electronics.

Procurement Notes

Verify the specific ordering suffix 'G' confirms the Pb-Free package status as defined by the manufacturer's documentation. Confirm the package type matches the required Case 017AA axial lead configuration for your assembly process. Ensure compliance with RoHS directives if applicable to your region. Cross-reference the part number with official distributor catalogs to validate availability and authenticity before procurement.

Selection Notes

Select this component when a precise 18 V regulation point is required with a 5 W power handling capacity. The 1N5355BG is suitable for designs needing robust thermal performance and high surge withstand capability. Consider the ±5% voltage tolerance and low impedance characteristics for applications demanding stable regulation under varying load conditions.

Part Context

This component belongs to the 1N53 Series of 5 Watt Surmetic 40 Zener Voltage Regulators manufactured by onsemi. The series covers a wide voltage range from 3.3 V to 200 V, all sharing similar mechanical and thermal characteristics. The 1N5355BG specifically addresses the 18 V segment of this lineup, offering standardized axial lead mounting for reliable integration into various circuit board layouts.

Replacement Considerations

Direct replacements must match the 18 V nominal voltage, 5 W power rating, and DO-15 axial package. Verify that substitute components meet the same ±5% tolerance and electrical parameters such as impedance and leakage current to ensure circuit compatibility.