1N5370BG

Overview

The onsemi 1N5370BG is a 5 Watt Zener voltage regulator diode from the 1N53 Series, housed in an axial leaded plastic package (CASE 017AA). It features silicon-oxide passivated junctions for superior environmental protection. The nominal reverse Zener voltage is 56 V with a ±5% tolerance range of 53.2 V to 58.8 V at a test current of 20 mA. Maximum Zener impedance is 35 Ohms at IZT and 280 Ohms at IZK. Reverse leakage current is limited to 1.0 mA at VR. The device supports a maximum steady-state power dissipation of 5 W at 25°C, operating within a temperature range of -65°C to +200°C.

Feature Summary

• Utilizes silicon-oxide passivated junctions for enhanced reliability and environmental protection
• Provides tight electrical limits across multiple parameters including voltage and impedance
• Features high surge capability up to 180 W for non-repetitive pulses
• Offers ESD protection rated at Class 3 per Human Body Model

Applications

• Voltage regulation circuits requiring stable reference voltages
• Protection against transient overvoltage events
• Surge suppression in electronic systems

Procurement Notes

Verify that the ordering suffix 'G' corresponds to the Pb-Free package configuration as specified in the datasheet. Confirm the specific part number matches the required JEDEC type designation for the intended application. Ensure compliance with RoHS directives if applicable to the manufacturing process. Check for any specific handling requirements related to the transfer-molded plastic case.

Selection Notes

Select this component when a 56 V Zener voltage with 5 W power rating is required. Consider the ±5% tolerance and specific impedance values for precision applications. Evaluate thermal resistance characteristics for heat sinking needs. Compare against other series members for different voltage levels or tolerance requirements.

Part Context

This device belongs to the 1N53 Series of 5 Watt Zener Voltage Regulators manufactured by onsemi. The series covers a wide voltage range from 3.3 V to 200 V. These diodes are designed for general-purpose voltage regulation and protection applications, offering robust performance in various environmental conditions due to their plastic encapsulation and passivation technology.

Replacement Considerations

Compatible substitutes include other manufacturers' 1N5370B variants. Verify equivalent electrical parameters such as Zener voltage, power dissipation, and package dimensions before substitution. Ensure compatibility with existing circuit designs and thermal management strategies.