1N4149

$0.84

Description：DIODE STANDARD 75V 200MA DO204AH
Series：-
Mfr：Microchip Technology
Package：Bulk

SKU:d27762df1942 Category: Single Diodes Brand: Microchip Technology

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Product introduction

1N4149 is listed in the Single Diodes range at ChipApex. The manufacturer field lists Microchip Technology. Its product description is DIODE STANDARD 75V 200MA DO204AH. Review the specifications below when checking this part for your BOM.

Single Diodes specifications for 1N4149

Description：DIODE STANDARD 75V 200MA DO204AH
Series：-
Mfr：Microchip Technology
Package：Bulk
Technology：Standard
Voltage - DC Reverse (Vr) (Max)：75 V
Current - Average Rectified (Io)：200mA
Voltage - Forward (Vf) (Max) @ If：1 V @ 10 mA
Speed：Small Signal =< 200mA (Io), Any Speed
Reverse Recovery Time (trr)：4 ns
Current - Reverse Leakage @ Vr：20 nA @ 20 V
Capacitance @ Vr, F：-
Mounting Type：Through Hole
Package / Case：DO-204AH, DO-35, Axial
Supplier Device Package：DO-204AH (DO-35)
Operating Temperature - Junction：-65°C ~ 150°C

Single Diodes datasheet and documents for 1N4149

1N4149

Single Diodes Overview

The Microchip Technology 1N4149 is a small signal switching diode designed for computer and signal applications. It features a single configuration in a DO-35-2 through-hole package. Key electrical parameters include a peak reverse voltage of 75 V, a forward current of 200 mA, and a maximum surge current of 500 mA. The device exhibits a fast recovery time of 4 ns with a forward voltage of 1 V and a reverse current of 25 nA. Maximum diode capacitance is 2 pF. Operating temperatures range from -65 C to +150 C.

Single Diodes Feature Summary

Fast switching capability with 4 ns recovery time suitable for high-speed digital circuits
Low forward voltage drop of 1 V at rated current
High thermal stability with operation up to +150 C

Single Diodes Applications

Signal processing circuits
Computer logic interfaces
General purpose switching applications

Single Diodes Procurement Notes

Verify the specific manufacturer designation as multiple entities produce this standard part number. Confirm RoHS compliance status, as the source indicates 'N' for some listings. Ensure the DO-35-2 axial leaded package matches the design requirements. Cross-reference datasheet revisions to confirm electrical limits align with the target application constraints before finalizing procurement.

Single Diodes Selection Notes

Select this component when a fast-recovery silicon junction diode is required for low-power signal switching. The 75 V reverse voltage rating provides adequate margin for most low-voltage digital logic levels. Consider the 200 mA continuous forward current limit for load handling. The DO-35 package is suitable for standard through-hole PCB layouts where space is not critically constrained compared to surface mount alternatives.

Single Diodes Part Context

The 1N4149 belongs to the widely used series of general-purpose small signal switching diodes. Manufactured by Microchip Technology, it serves as a standard replacement for legacy designs requiring reliable rectification or clamping in low-current environments. The DO-35 glass passivated package ensures stable performance across the specified industrial temperature range.