1N5344BRL

Single Zener Diodes Overview

The onsemi 1N5344BRL is a single-channel Zener voltage regulator diode from the 1N53 Series, housed in an axial lead Surmetic 40 (DO-15) package. It features a nominal Zener voltage of 8.2 V with a ±5% tolerance and a maximum steady-state power dissipation of 5 W at 25°C. The device operates within a temperature range of -65°C to +200°C and includes a polarity band for cathode identification.

Single Zener Diodes Feature Summary

• Utilizes silicon-oxide passivated junctions for superior operating characteristics and environmental protection.
• Provides high surge current capability rated up to 180 W for an 8.3 ms pulse width.
• Features robust ESD protection meeting Class 3 standards (>16 kV) per the Human Body Model.

Single Zener Diodes Applications

• Voltage regulation in general-purpose electronic circuits
• Overvoltage protection for sensitive components
• Reference voltage sources in power supply designs

Single Zener Diodes Procurement Notes

Verify that the ordering suffix 'RL' corresponds to the tape and reel packaging configuration containing 4000 units per reel. Confirm the presence of the 'G' suffix if lead-free compliance is required. Ensure the component marking matches the specific device number for accurate identification upon receipt.

Single Zener Diodes Selection Notes

Select this component when a stable 8.2 V reference is needed with a 5 W power handling capacity. The axial lead format facilitates through-hole mounting. Consider the thermal resistance characteristics and derating requirements above 25°C to ensure reliable operation under continuous load conditions.

Single Zener Diodes Part Context

This part belongs to the 1N53 Series of 5 Watt Zener Voltage Regulators. The series offers a wide Zener voltage range from 3.3 V to 200 V. All devices in this family share the same mechanical case outline and utilize transfer-molded plastic packages designed for common environmental conditions.

Single Zener Diodes Replacement Considerations

Compatible substitutes include other manufacturers' 1N5344B variants or equivalent 5W Zener diodes with an 8.2 V nominal rating and DO-15 package. Verify electrical parameters such as impedance and leakage current match the original specifications before substitution.

Single Zener Diodes FAQ

What is the maximum non-repetitive surge current rating?

The device has a surge rating of up to 180 W @ 8.3 ms, representing the maximum allowable peak non-recurrent square-wave current.

How is the polarity of the diode indicated?

Polarity is indicated by a polarity band on the external surface of the package, which marks the cathode end.