1N277 BK

Description：DIODE STANDARD 110V 100MA DO7
Series：-
Mfr：Central Semiconductor Corp
Package：Bulk

SKU:f6f9c8d7572f Category: Single Diodes Brand: Central Semiconductor Corp

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Product introduction

Product Detailed Parameters

Description：DIODE STANDARD 110V 100MA DO7
Series：-
Mfr：Central Semiconductor Corp
Package：Bulk
Technology：Standard
Voltage - DC Reverse (Vr) (Max)：110 V
Current - Average Rectified (Io)：100mA
Voltage - Forward (Vf) (Max) @ If：1 V @ 100 mA
Speed：Small Signal =< 200mA (Io), Any Speed
Reverse Recovery Time (trr)：-
Current - Reverse Leakage @ Vr：250 µA @ 50 V
Capacitance @ Vr, F：-
Mounting Type：Through Hole
Package / Case：DO-204AA, DO-7, Axial
Supplier Device Package：DO-7
Operating Temperature - Junction：-50°C ~ 100°C
Grade：-
Qualification：-

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1N277 BK

Overview

The Central Semiconductor Corp 1N277 BK is a germanium point-contact diode designed for high-frequency detection and mixing applications. It utilizes a DO-35 axial leaded glass package to provide environmental protection and mechanical stability. The device is characterized by low junction capacitance and fast switching speeds, making it suitable for RF signal processing circuits where minimal signal distortion is required.

Feature Summary

Germanium point-contact construction for efficient high-frequency operation
DO-35 axial leaded glass encapsulation for durability
Low junction capacitance supporting RF detection tasks

Applications

High-frequency signal detection
Radio frequency mixing circuits
Crystal radio receivers

Procurement Notes

This component has been officially transitioned to End of Life status by the manufacturer. Current availability is restricted to existing stock only, with no new production scheduled. Buyers must verify specific plating options such as Tin/Lead or Lead-Free variants when sourcing from remaining inventory channels.

Selection Notes

Engineers should evaluate this part primarily for legacy system maintenance or specific historical design requirements. Due to its discontinued status, alternative sourcing strategies must be implemented. Verify that the germanium material properties align with the circuit's thermal and electrical constraints before finalizing the design.

Part Context

The 1N277 series represents a classic category of germanium point-contact diodes widely used in early radio frequency technology. Central Semiconductor maintains documentation for these legacy parts to support ongoing repair and reproduction projects within specialized electronics sectors.