1N5337B

Single Zener Diodes Overview

The onsemi 1N5337B is a silicon-oxide-passivated junction Zener diode rated for 5 W steady-state power dissipation. It provides a nominal reverse Zener voltage of 4.7 V with a ±5% tolerance, operating within a range of 4.47 V to 4.94 V at a test current of 260 mA. The device features a maximum Zener impedance of 2 Ω and a maximum reverse leakage current of 5 μA. It utilizes an axial lead Surmetic 40 (DO-15) plastic package and supports a junction-to-lead thermal resistance of 25 °C/W. Operating temperatures extend from -65 °C to +200 °C.

Single Zener Diodes Feature Summary

• Utilizes silicon-oxide passivation for superior electrical characteristics and environmental protection.
• Provides high surge capability with ratings up to 180 W for non-repetitive pulses.
• Features robust ESD protection exceeding 16 kV under the Human Body Model standard.

Single Zener Diodes Applications

• Voltage regulation in general-purpose electronic circuits
• Protection against transient overvoltage events
• Reference voltage generation in power supplies

Single Zener Diodes Procurement Notes

Verify that the specific part number matches the required JEDEC tolerance designation. Confirm whether the 'G' suffix is necessary for lead-free compliance. Ensure the ordering quantity aligns with the manufacturer's standard packaging units, such as boxes or reels, to match production requirements.

Single Zener Diodes Selection Notes

Select this component when a stable 4.7 V reference is required with moderate current handling capabilities. The low thermal resistance allows for efficient heat dissipation through the leads. Verify that the application environment remains within the specified temperature limits to maintain accurate voltage regulation performance.

Single Zener Diodes Part Context

This device belongs to the 1N53 Series of 5 Watt Zener Voltage Regulators. The series covers a wide voltage spectrum from 3.3 V to 200 V. All devices in this family share the same axial lead plastic package construction and utilize silicon-oxide passivation technology for consistent reliability across different voltage ratings.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers offering the 1N5337B specification. Verify that substitute parts meet the identical 5 W power rating, 4.7 V nominal voltage, and DO-15 package dimensions to ensure mechanical and electrical compatibility.