1N5355BRL

Overview

The onsemi 1N5355BRLG is a 5 Watt Zener voltage regulator diode from the 1N53 Series, housed in an axial lead Surmetic 40 (CASE 017AA) plastic package. It provides a nominal Zener voltage of 18 V with a ±5% tolerance and a maximum dynamic impedance of 2.5 Ω at a test current of 65 mA. The device supports a maximum steady-state power dissipation of 5 W and operates within a junction temperature range of -65°C to +200°C. It features a maximum reverse leakage current of 0.5 µA at 13.7 V and includes ESD protection rated at Class 3 (>16 kV) per the Human Body Model.

Feature Summary

• Utilizes silicon-oxide passivated junctions for superior operating characteristics and tight parameter limits.
• Features void-free, transfer-molded thermosetting plastic construction with corrosion-resistant external surfaces.
• Includes polarity band marking to clearly indicate the cathode end for correct circuit installation.

Applications

• Voltage regulation circuits requiring stable reference voltages
• Overvoltage protection for sensitive electronic components
• Transient voltage suppression in industrial equipment

Procurement Notes

Verify that the ordering suffix 'RL' corresponds to the Tape & Reel packaging format containing 4000 units per reel. Confirm the presence of the 'G' suffix if Lead-Free compliance is required by your manufacturing process. Ensure the component matches the CASE 017AA mechanical outline dimensions before integration into the assembly line.

Selection Notes

Select this component when a precise 18 V regulation point is needed with high surge handling capabilities. The axial lead configuration allows for flexible mounting positions and easy integration into through-hole designs. Consider the thermal resistance characteristics and derating requirements above 25°C to ensure reliable operation under continuous load conditions.

Part Context

This part belongs to the 1N53 Series of 5 Watt Zener diodes manufactured by onsemi. The series covers a wide voltage range from 3.3 V to 200 V, offering consistent performance across various applications. The 1N5355B variant specifically targets the 18 V segment, providing balanced electrical parameters suitable for general-purpose voltage regulation tasks.

Replacement Considerations

Compatible substitutes include other manufacturers' 1N5355B variants or equivalent 5W axial Zener diodes with matching 18 V nominal voltage and ±5% tolerance. Verify that any replacement maintains the same CASE 017AA package dimensions and thermal characteristics to ensure physical compatibility.