1N5380B

Overview

The onsemi 1N5380B is a single-channel silicon Zener voltage regulator diode from the 1N53 Series, housed in an axial lead DO-15 (Surmetic 40) plastic package. It features a nominal reverse Zener voltage of 120 V with a ±5% tolerance and a maximum steady-state power dissipation of 5 W at 25°C. The device operates within a junction temperature range of -65°C to +200°C and includes a glass passivated junction for environmental protection.

Feature Summary

• Features a silicon-oxide passivated junction designed for superior operating characteristics and tight electrical limits.
• Housed in a void-free, transfer-molded thermosetting plastic case that provides corrosion resistance and solderability.
• Includes polarity indication via a cathode band and supports mounting in any position.

Applications

• Voltage regulation circuits requiring high-voltage stabilization
• Protection against transient overvoltage events
• Reference voltage generation in electronic systems

Procurement Notes

Verify the specific ordering suffix when purchasing. The 'G' suffix indicates a Pb-Free package. Confirm whether the required quantity is available in box or tape-and-reel formats, as packaging options vary by manufacturer designation. Ensure compliance with RoHS directives if lead-free components are mandatory for the assembly process.

Selection Notes

Select this component based on the required 120 V nominal breakdown voltage and 5 W power handling capability. Verify that the application environment stays within the specified -65°C to +200°C operating range. Consider the thermal resistance characteristics and derating requirements above 25°C to ensure reliable operation under expected load conditions.

Part Context

This part belongs to the 1N53 Series of 5 Watt Zener Voltage Regulators. The series covers a wide voltage range from 3.3 V to 200 V, utilizing silicon-oxide passivation technology. The 1N5380B specifically addresses the 120 V segment of this lineup, offering standardized performance for general-purpose high-voltage regulation tasks.

Replacement Considerations

Compatible substitutes include other manufacturers' 1N5380B variants, such as those produced by Diodes Incorporated or Panjit International. When replacing, verify that the substitute maintains the same 120 V nominal voltage, 5 W power rating, and DO-15 axial lead package dimensions to ensure mechanical and electrical compatibility.