1N5255B-TP

Single Zener Diodes Overview

The MCC 1N5255B-TP is a single Zener diode with a nominal voltage of 28 V and a maximum DC power dissipation of 500 mW. It features a ±5% tolerance on the nominal Zener voltage, indicated by the 'B' suffix. The device operates within a temperature range of -55°C to +150°C and utilizes a DO-35 glass axial package. Electrical characteristics include a test current of 4.5 mA, a maximum Zener impedance of 44 Ohms at the test current, and a reverse leakage current of 0.1 µA at 21 V.

Single Zener Diodes Feature Summary

• Glass passivated junction for high temperature stability
• Low Zener impedance for effective regulation
• High temperature soldering capability

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clamping applications

Single Zener Diodes Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to industry counterfeiting risks. Confirm that the specific ordering suffix matches the required packaging format, such as tape and reel or bulk, as these affect handling procedures. Ensure compliance with RoHS standards and check for lead-free finish specifications before procurement.

Single Zener Diodes Selection Notes

Select this component when a precise 28 V reference is required in a through-hole configuration. The DO-35 package suits standard PCB layouts requiring axial leads. Consider the thermal derating curve if operating above 50°C ambient temperature to maintain the 500 mW rating. Verify that the 44 Ohm impedance meets the circuit's dynamic regulation requirements.

Single Zener Diodes Part Context

This part belongs to the 1N5221B through 1N5267B series of 500 mW Zener diodes manufactured by Micro Commercial Components. The series covers a wide voltage range from 2.4 V to 75 V. The 'TP' suffix typically designates Tape and Reel packaging, while the 'B' suffix specifies the 5% voltage tolerance class.

Single Zener Diodes Replacement Considerations

Public confirmed substitute part numbers: 1N5255B BK PBFREE (Central Semiconductor Corp), 1N5255B TR PBFREE (Central Semiconductor Corp), 1N5255B-TAP (Vishay General Semiconductor), 1N5255B-TR (Vishay General Semiconductor).

Single Zener Diodes FAQ

What does the 'B' suffix indicate for the 1N5255B-TP?

The 'B' suffix indicates a 5% tolerance on the nominal Zener voltage.

What is the maximum reverse leakage current specified for this device?

The maximum reverse leakage current is 0.1 µA at a reverse voltage of 21 V.