1N5336B

Single Zener Diodes Overview

The onsemi 1N5336B is a silicon Zener diode with a nominal voltage of 4.3 V and ±5% tolerance. It operates in an axial lead Case 017AA package, dissipating up to 5 W at 25°C with a derating factor of 40 mW/°C above that temperature. The junction-to-lead thermal resistance is 25 °C/W. Electrical characteristics include a test current (IZT) of 290 mA, maximum dynamic impedance (ZZT) of 2 Ω, knee impedance (ZZK) of 500 Ω, and reverse leakage current of 10 µA at 1 V. Maximum DC regulator current (IZM) is 1.1 A.

Single Zener Diodes Feature Summary

• Utilizes silicon-oxide passivated junctions for superior operating characteristics and tight electrical limits.
• Features high surge capability rated up to 180 W for 8.3 ms pulses.
• Provides robust electrostatic discharge protection exceeding 16 kV per the Human Body Model.
• Encased in void-free transfer-molded thermosetting plastic resistant to common environmental conditions.

Single Zener Diodes Applications

• Voltage regulation across broad operating currents and temperatures
• Protection against transient overvoltage events
• Reference voltage generation in electronic circuits

Single Zener Diodes Procurement Notes

Verify the specific ordering suffix when purchasing. The base part number denotes standard specifications, while the 'G' suffix indicates a lead-free package variant. Confirm the required shipping format, as the device is available in bulk boxes or tape and reel configurations depending on the full orderable part number selected.

Single Zener Diodes Selection Notes

Select this component for applications requiring precise 4.3 V regulation within a 5 W power envelope. Ensure adequate heat sinking is provided if ambient temperatures exceed 25°C to maintain safe junction temperatures. Verify that the circuit's peak surge currents remain below the specified 180 W limit to prevent device damage during transient events.

Single Zener Diodes Part Context

This device belongs to the 1N53 Series, a comprehensive line of 5 Watt Surmetic 40 Zener Voltage Regulators. The series spans from 3.3 V to 200 V, offering a wide selection of breakdown voltages. All devices share the same axial lead plastic package and utilize silicon-oxide passivation technology for enhanced reliability and performance consistency.

Single Zener Diodes Replacement Considerations

Cross-reference with other manufacturers' 1N5336B equivalents. Verify that substitute parts match the 4.3 V nominal voltage, 5 W power rating, and DO-201AE/Case 017AA physical dimensions. Ensure the replacement maintains comparable impedance and leakage specifications for identical circuit performance.

Single Zener Diodes FAQ

What is the maximum non-repetitive surge current rating?

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

How is the cathode polarity identified?

The cathode end is indicated by a visible polarity band on the exterior of the plastic case.

Is a lead-free version available?

Yes, lead-free packages are available and are designated by adding the 'G' suffix to the part number.