1N5359B

Overview

The onsemi 1N5359B is a 5 Watt Zener voltage regulator diode featuring a nominal breakdown voltage of 24 V with a ±5% tolerance. It operates within an axial lead package (Case 017AA) and supports a maximum steady-state power dissipation of 5 W at 25°C, derating to 40 mW/°C above this temperature. The device exhibits a maximum Zener impedance of 3.5 Ω at the test current of 50 mA and maintains a reverse leakage current of no more than 0.5 µA at 18.2 V. It withstands junction temperatures up to 200°C and offers high surge capability.

Feature Summary

• Utilizes silicon-oxide passivated junction technology for superior operating characteristics and tight electrical limits.
• Features a void-free, transfer-molded thermosetting plastic case providing corrosion resistance and environmental protection.
• Includes polarity band marking for cathode identification and ensures leads are readily solderable.

Applications

• Voltage regulation in electronic circuits requiring stable reference levels.
• Protection against overvoltage transients and surge events.
• General-purpose clipping and clamping applications.

Procurement Notes

Verify the specific ordering suffix when purchasing; the 'G' suffix indicates a Pb-Free package. Confirm that the required quantity matches standard shipping units, such as boxes of 1000 units or tape and reel configurations of 4000 units. Ensure compliance with RoHS directives if applicable to the assembly process.

Selection Notes

Select the 1N5359B for applications requiring a precise 24 V reference with a 5 W power rating. Consider the thermal resistance characteristics and derating requirements for high-temperature environments. Verify that the circuit design accommodates the specified surge current capabilities and impedance values for effective transient suppression.

Part Context

This component belongs to the 1N53 Series of 5 Watt Surmetic 40 Zener Voltage Regulators. The series covers a wide voltage range from 3.3 V to 200 V, offering consistent performance across various breakdown voltages. All devices in this family share similar mechanical packaging and robust junction passivation techniques.

Replacement Considerations

Cross-reference with other manufacturers offering the JEDEC 1N5359B specification. Ensure substitute components match the 24 V nominal voltage, 5 W power rating, and DO-201 axial lead form factor. Verify that alternative parts meet the same impedance and leakage current limits.