1N5368BG

Overview

The onsemi 1N5368BG is a silicon-oxide passivated junction Zener voltage regulator diode belonging to the 1N53 Series. It provides a nominal reverse Zener voltage of 47 V with a tolerance of ±5%. The device operates in an axial lead, transfer-molded plastic package (CASE 017AA) and supports a maximum steady-state power dissipation of 5 W at a lead temperature of 25°C. Electrical characteristics include a maximum Zener impedance of 27 Ohms at a test current of 25 mA, a maximum reverse leakage current of 500 nA at 35.8 V, and a forward voltage drop of 1.2 V maximum at 1.0 A. The component withstands a non-repetitive surge current of up to 180 W for an 8.3 ms pulse width.

Feature Summary

• Utilizes silicon-oxide passivated junction technology for superior operating characteristics and environmental protection.
• Features tight electrical limits guaranteed across multiple parameters including Zener voltage, impedance, and leakage current.
• Includes high ESD protection rated at Class 3 (>16 kV) per the Human Body Model standard.

Applications

• Voltage regulation over broad operating current and temperature ranges
• Protection against transient voltage spikes and surge currents
• Reference voltage generation in electronic circuits

Procurement Notes

Verify that the ordering suffix 'G' corresponds to the Pb-Free package specification as defined by the manufacturer. Confirm the specific part number matches the required JEDEC type designation for the intended application. Ensure compliance with RoHS directives if applicable to the project requirements. Check for any recent product change notices regarding packaging or material composition updates.

Selection Notes

Select this component when a precise 47 V regulation point is required within a 5 W power dissipation envelope. The axial lead configuration facilitates through-hole mounting in various orientations. Consider the thermal resistance characteristics and derating requirements above 25°C ambient temperature to ensure reliable operation under continuous load conditions.

Part Context

This device is part of the 1N53 Series, which covers a wide range of Zener voltages from 3.3 V to 200 V. The series is characterized by its robust mechanical design and consistent electrical performance. The 1N5368B variant specifically targets applications requiring stable voltage regulation near the mid-range of the series spectrum.

Replacement Considerations

Compatible substitutes include other manufacturers' versions of the 1N5368B series diode. Verify that alternative parts meet the same 5 W power rating, 47 V nominal voltage, and ±5% tolerance specifications. Ensure the replacement package matches the CASE 017AA dimensions for physical compatibility.

FAQ

What is the maximum non-repetitive surge current rating for the 1N5368BG?

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

How is the polarity indicated on the 1N5368BG component?

The cathode terminal is identified by a polarity band printed on the external surface of the plastic package.