1N4461 TR PBFREE

Single Zener Diodes Overview

The Central Semiconductor Corp 1N4461 TR PBFREE is a silicon Zener diode with a nominal voltage of 6.8 V and a tolerance of ±5%. It operates within a power dissipation rating of 1.5 W at 25°C ambient temperature. The device features a maximum Zener impedance of 2.5 Ω at the test current of 37 mA, with a maximum reverse leakage current of 5.0 μA at 4.08 V. It supports a maximum DC current of 210 mA and a non-repetitive surge current of 5.0 A. The component is housed in an axial DO-41 package and functions reliably across a junction temperature range of -65°C to +200°C.

Single Zener Diodes Feature Summary

• High-quality voltage regulation designed for automotive, industrial, commercial, entertainment, and computer applications.
• Robust thermal performance capable of operating and storing junction temperatures from -65°C to +200°C.
• Capable of handling significant non-repetitive peak surge currents for transient protection scenarios.

Single Zener Diodes Applications

• Automotive electronic circuits
• Industrial control systems
• Commercial equipment power supplies
• Computer hardware voltage regulation

Single Zener Diodes Procurement Notes

Verify product status carefully before procurement as this specific part number has been transitioned to End of Life (EOL) status by the manufacturer. Orders are restricted to available inventory on hand only. Confirm final shipment dates and any applicable minimum order quantities directly with the supplier or sales representative prior to placing orders.

Single Zener Diodes Selection Notes

Select this component when a 6.8 V Zener reference is required in an axial through-hole configuration. Ensure the circuit design accommodates the 1.5 W power dissipation limit and the specific impedance characteristics at the intended operating current. Verify that the DO-41 package dimensions fit the target PCB layout constraints.

Single Zener Diodes Part Context

This device belongs to the 1N4460 series of silicon Zener diodes manufactured by Central Semiconductor. The series covers a wide voltage range from 6.2 V to 200 V, all sharing the same 1.5 W power rating and 5% tolerance specifications. The 1N4461 specifically targets the 6.8 V segment of this broad portfolio.

Single Zener Diodes Replacement Considerations

No public confirmed substitute part numbers are listed for this component. The manufacturer indicates N/A for suggested replacements in their discontinuation notice. Contact the manufacturer's support team for assistance in locating alternate sources if necessary.

Single Zener Diodes FAQ

What is the maximum non-repetitive surge current for the 1N4461?

The maximum non-repetitive surge current is 5.0 A, measured as a peak 1/2 sinusoidal surge of 8.3 ms duration.

Does the PBFREE suffix change the electrical function?

No, the PBFREE suffix indicates Lead-free plating options and does not alter the electrical function or parameters of the diode.