1N5257B_T50R

Single Zener Diodes Overview

The onsemi 1N5257B_T50R is a single silicon planar Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 33 V with a tight tolerance of ±5%. The device operates in the DO-35 axial leaded package, supporting through-hole mounting. Key electrical parameters include a maximum power dissipation of 500 mW and a test current of 3.8 mA. It exhibits a low reverse leakage current of 100 nA and a Zener impedance of 58 Ohms at the test point. The component is rated for a wide operating temperature range from -65 °C to +200 °C, ensuring stability under varying thermal conditions.

Single Zener Diodes Feature Summary

• Provides precise voltage regulation with a 33 V nominal breakdown voltage and ±5% tolerance.
• Engineered for high reliability with low reverse leakage current and stable Zener impedance characteristics.
• Capable of handling significant thermal loads with a maximum power dissipation of 500 mW.

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the specific suffix _T50R against the manufacturer's official documentation to confirm reel packaging specifications and tape-and-reel dimensions. Ensure that the requested quantity aligns with standard manufacturing reel sizes. Cross-reference the RoHS compliance status with the latest datasheet revision, as environmental declarations may vary by production lot or region. Confirm availability directly with authorized distributors, as supply chain statuses change frequently.

Single Zener Diodes Selection Notes

Select this component when a 33 V regulation point is required within a through-hole design constraint. The ±5% tolerance makes it suitable for general-purpose regulation where tighter precision is not critical. Consider the 500 mW power rating to ensure adequate heat dissipation in the final assembly. Verify that the operating environment stays within the specified -65 °C to +200 °C range to maintain performance integrity.

Single Zener Diodes Part Context

This part belongs to the 1N52xx series of Zener diodes, a widely recognized family of voltage regulators produced by onsemi. The 'B' suffix typically denotes the ±5% voltage tolerance variant within this series. These devices are standard components in discrete semiconductor catalogs, often used as foundational elements in power supply designs and protection circuits across various industrial and consumer electronics applications.

Single Zener Diodes Replacement Considerations

Compatible substitutes include the 1N5257B from other manufacturers such as Vishay or Taiwan Semiconductor, provided they meet the same 33 V, 500 mW, and DO-35 package specifications. Ensure that any replacement maintains the identical Zener impedance and leakage current characteristics to preserve circuit behavior.