ON5257,215

Overview

The ON5257,215 is a unidirectional voltage regulator diode manufactured by NXP USA Inc. It features a nominal reference voltage of 33 V and a maximum power dissipation of 0.5 W. The device utilizes a silicon construction and is housed in a DO-35 axial leaded package. Key electrical specifications include a maximum dynamic impedance of 58 Ω at a test current of 3.8 mA, with a maximum voltage tolerance of 5%. The component is designed for through-hole mounting and supports an operating temperature range up to 200 °C.

Feature Summary

• Provides stable voltage regulation via Zener breakdown characteristics
• Designed for unidirectional voltage clamping applications
• Utilizes robust silicon construction for reliable operation

Applications

• Voltage regulation circuits
• Overvoltage protection
• Reference voltage generation

Procurement Notes

Verify the specific ordering suffix against official NXP documentation to confirm exact mechanical and environmental specifications. Ensure compatibility with existing board layouts regarding the DO-35 package dimensions. Confirm compliance requirements such as RoHS status if applicable to the target market. Cross-reference the manufacturer part number with distributor databases to validate authenticity and availability channels before procurement.

Selection Notes

Select this component when a precise 33 V reference or clamp is required in low-power applications. Consider the 0.5 W power rating and thermal constraints during design. The DO-35 package dictates through-hole assembly methods. Evaluate the 5% voltage tolerance against circuit precision requirements. Ensure the operating temperature range meets the environmental conditions of the final application.

Part Context

This component belongs to the family of discrete semiconductor diodes produced by NXP. It serves as a fundamental passive element for managing voltage levels in electronic systems. The product line focuses on providing reliable regulation and protection solutions for various industrial and consumer electronics applications.

Replacement Considerations

Consult official NXP substitution guides for verified equivalents. Generic replacements may differ in dynamic impedance or tolerance. Verify pinout compatibility and thermal performance before integrating alternative parts.