1N5338B

Single Zener Diodes Overview

The onsemi 1N5338B is a 5 Watt Surmetic 40 Zener Voltage Regulator featuring silicon-oxide passivated junctions. It provides a nominal reverse Zener voltage of 5.1 V with a tolerance of ±5%. The device operates within a temperature range of -65°C to +200°C and utilizes an axial lead plastic package (CASE 017AA). Key electrical parameters include a maximum Zener impedance of 1.5 Ω at the test current of 240 mA, a forward voltage of 1.2 V max at 1.0 A, and a maximum steady-state power dissipation of 5 W.

Single Zener Diodes Feature Summary

• Utilizes silicon-oxide passivated junctions for superior operating characteristics
• Offers protection in common environmental conditions via transfer-molded plastic packaging
• Provides high surge capability up to 180 W at 8.3 ms pulse width
• Guarantees maximum limits on multiple electrical parameters

Single Zener Diodes Applications

• Voltage regulation over broad operating current and temperature ranges
• Surge protection circuits requiring high peak current handling
• General-purpose voltage reference applications

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix when purchasing. The 'G' suffix indicates a Pb-Free package. Standard bulk packaging contains 1000 units per box, while tape and reel options are available in quantities of 4000 units. Confirm that the component meets RoHS compliance requirements if applicable to your manufacturing process.

Single Zener Diodes Selection Notes

Select this component for applications requiring a 5.1 V regulated output with a 5 W power rating. Ensure the circuit design accounts for the thermal resistance from junction to lead, which varies based on lead length. Verify that the expected surge currents remain within the specified non-repetitive square-wave limits to maintain device reliability.

Single Zener Diodes 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. The 1N5338B specifically addresses the lower end of this spectrum with a 5.1 V nominal value, sharing the same mechanical CASE 017AA outline and general feature set as other devices in the family.

Single Zener Diodes Replacement Considerations

Compatible substitutes include the Microsemi JAN1N5338 and the MCC 1N5338B-TP. When replacing, verify that the substitute maintains the 5.1 V nominal voltage, ±5% tolerance, and 5 W power dissipation rating to ensure circuit compatibility.