Diodes Incorporated 1N5402G-T

Overview

1N5402G-T from Diodes Incorporated is a glass passivated silicon rectifier diode rated for 200 V peak repetitive reverse voltage, 3.0 A average forward current at 55°C, and 125 A non-repetitive surge current. It features low 1.1 V forward voltage drop at 3.0 A and 2.0 µs typical reverse recovery time, used in AC/DC power supplies, DC motor drives, and input rectification stages of industrial power converters.

For engineers reviewing the 1N5402G-T datasheet, 1N5402G-T pinout, 1N5402G-T application, or 1N5402G-T equivalent, key selection criteria include its DO-201AD package thermal resistance (16 °C/W), 5.0 µA max reverse leakage at 25°C, RoHS-compliant matte tin plating, and suitability for 60 Hz single-phase half-wave rectification with resistive or inductive loads.

Technical Context

This device operates as a unidirectional power rectifier in line-frequency applications. Its glass passivated die construction ensures stable junction performance under thermal cycling and humidity exposure, while the DO-201AD molded plastic case meets UL 94V-0 flammability requirements.

The 1N5402G-T is characterized for use with single-phase, 60 Hz, resistive or inductive loads - capacitive loads require 20% current derating. Thermal design must account for 16 °C/W junction-to-ambient resistance and ambient temperature derating per Figure 1, where IO drops to ~2.2 A at 100°C ambient.

Key Specifications

Pinout & Package

Package: DO-201AD molded plastic case with cathode band marking; 1.12 g mass; UL 94V-0 rated; matte tin-plated leads solderable per MIL-STD-202, Method 208.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar rectifier applications.

Compared with 1N5402RLG, the 1N5402G-T offers identical performance in same package; versus RS2M, it delivers +50% current capacity and better thermal performance at the cost of slightly slower recovery - making it preferred for general-purpose 3 A industrial rectification.

Availability

1N5402G-T is available at Aetrix Electronics and suitable for AC/DC power supply input rectification, DC motor drive freewheeling, and industrial control power rails requiring stable component supply across extended production lifecycles.

Supply support for 1N5402G-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global semiconductor company specializing in discrete, analog, and mixed-signal solutions for power management, signal integrity, and protection applications.

The 1N540xG series belongs to Diodes' general-purpose rectifier product line, engineered for cost-effective, high-reliability AC/DC conversion in industrial, consumer, and computing power supplies.

FAQ

What is the maximum allowable ambient temperature for continuous 3.0 A operation?

The 1N5402G-T is rated for 3.0 A average forward current only at TA = 55°C with leads maintained at ambient temperature at 9.5 mm from the case. At higher ambient temperatures, current must be derated per Figure 1 - e.g., to ~2.2 A at 100°C ambient. Exceeding this without heatsinking risks thermal runaway.

Can the 1N5402G-T be used in full-wave bridge configurations?

Yes - the 1N5402G-T is commonly used as one leg in discrete full-wave bridge rectifiers. Four units can form a 200 V, 3.0 A bridge. Ensure matching VFM and trr across all four diodes for balanced current sharing and reduced thermal imbalance in high-duty-cycle applications.

Is the DO-201AD package compatible with automated pick-and-place assembly?

Yes - the DO-201AD package is compatible with standard tape-and-reel (1.2K/reel, 13-inch) feeders. The 1N5402G-T variant uses matte tin-plated leads meeting MIL-STD-202 solderability requirements, supporting both reflow and wave soldering without lead oxidation concerns.

How does capacitive loading affect the 1N5402G-T's current rating?

Capacitive loading increases peak forward current and stresses the diode beyond its average rating. Per datasheet Note 4, current must be derated by 20% - i.e., maximum IO becomes 2.4 A - to avoid excessive junction temperature rise and premature failure due to ripple-induced heating.