1N5335BG

Single Zener Diodes Overview

The onsemi 1N5335BG is a 5 Watt Zener voltage regulator diode belonging to the 1N53 Series. It features a nominal Zener voltage of 3.9 V with a tolerance of ±5%. The device utilizes silicon-oxide passivated junctions and is housed in an axial lead Surmetic 40 (CASE 017AA) plastic package. Key electrical parameters include a maximum Zener impedance of 2 Ω at a test current of 320 mA, a reverse leakage current of 50 µA at 17.6 V, and a maximum DC Zener current of 1220 mA. It supports a steady-state power dissipation of 5 W and withstands surge currents up to 180 W for 8.3 ms pulses.

Single Zener Diodes Feature Summary

• Utilizes silicon-oxide passivated junctions for superior operating characteristics and tight voltage limits.
• Provides high surge capability rated up to 180 W for short-duration pulses.
• Offers robust electrostatic discharge protection exceeding 16 kV per the Human Body Model.
• Guarantees maximum limits across multiple electrical parameters for consistent performance.

Single Zener Diodes Applications

• Voltage regulation in power supply circuits
• Overvoltage protection for sensitive electronic components
• Reference voltage generation in measurement systems

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'G' corresponds to the Pb-Free package designation as specified in the datasheet. Confirm the specific part number matches the required 5W axial lead configuration. Ensure compliance with environmental regulations if RoHS status is critical for the intended application. Cross-reference the manufacturer's latest documentation for any updates to mechanical dimensions or thermal ratings.

Single Zener Diodes Selection Notes

Select this component when a precise 3.9 V reference is required with high power handling capabilities. The 5W rating allows for operation without external heat sinks in many ambient conditions. Consider the low Zener impedance for applications demanding stable voltage under varying load currents. Verify that the axial lead form factor fits the available board space and mounting constraints.

Single Zener Diodes Part Context

This device is part of the broader 1N53 Series, which covers a wide range of Zener voltages from 3.3 V to 200 V. All members share the same Surmetic 40 package and 5W power dissipation rating. The series is designed for general-purpose voltage regulation tasks where reliability and environmental resistance are prioritized over miniaturization.

Single Zener Diodes Replacement Considerations

Direct replacements must match the 3.9 V nominal voltage, 5W power rating, and axial lead package. Other manufacturers producing JEDEC-compliant 1N53xxB series diodes may be suitable substitutes. Verify thermal resistance and surge current ratings to ensure equivalent performance in the target circuit.

Single Zener Diodes FAQ

What is the maximum non-repetitive surge current for the 1N5335BG?

The device can withstand a surge rating of up to 180 W for an 8.3 ms pulse width.

How is the polarity indicated on the 1N5335BG package?

The cathode end is identified by a polarity band printed on the plastic body.

What is the temperature coefficient range for this Zener voltage?

For Zener voltages between 3 and 10 Volts, the temperature coefficient ranges from approximately -2 mV/°C to +10 mV/°C depending on the specific voltage point.