Taiwan Semiconductor Corporation 2A05G-T

Overview

2A05G-T from Diodes Incorporated is a 2.0A glass passivated general-purpose rectifier diode with 600V peak repetitive reverse voltage (VRRM), 1.1V forward voltage at 2.0A, and 65A non-repetitive surge capability. It uses DO-15 package, features RoHS-compliant tin-plated leads, and is rated for operation from –65°C to +175°C ambient. It serves as primary AC/DC input rectifier in offline power supplies.

For engineers reviewing the 2A05G-T datasheet, 2A05G-T pinout, 2A05G-T application, or 2A05G-T equivalent, key selection criteria include VRRM derating for capacitive loads, thermal resistance (60°C/W), forward voltage consistency at full-rated current, and surge robustness under 8.3ms half-sine stress.

Technical Context

This device operates as a single-phase, half-wave silicon rectifier optimized for line-frequency (60Hz) resistive or inductive loads. Its glass passivation ensures stable junction performance under humidity and thermal cycling, while the DO-15 axial package supports through-hole mounting with 9.5mm lead length for rated 2.0A conduction at 55°C ambient.

Thermal design requires attention to RθJA = 60°C/W and forward current derating above 55°C - e.g., ~1.4A at 100°C ambient per Fig. 1. Reverse leakage remains ≤5.0µA at 25°C and ≤200µA at 100°C across its 600V blocking rating.

Key Specifications

Pinout & Package

Package: DO-15 molded plastic case (UL 94V-0), axial leads, cathode band marking, 0.4 g typical weight.

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU6K and 1N4007G, the 2A05G-T offers optimal balance of 2A capacity, 600V rating, DO-15 footprint, and 1.1V conduction loss - making it ideal for mid-power AC/DC converters where size, cost, and thermal efficiency are jointly constrained.

Availability

2A05G-T is available at Aetrix Electronics and suitable for AC-DC adapters, industrial control power supplies, LED driver bulk rectification, and appliance motor control power stages requiring stable component supply and long-term manufacturability.

Supply support for 2A05G-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 manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, serving automotive, industrial, computing, and consumer markets with high-reliability components.

The 2A01G–2A07G series was designed specifically for cost-sensitive, high-volume AC/DC front-end rectification where robust surge handling, stable thermal performance, and RoHS compliance are mandatory.

FAQ

Is 2A05G-T suitable for capacitive-load applications?

No - the datasheet explicitly requires 20% current derating for capacitive loads due to increased peak current stress. At full 2.0A average, the effective continuous rating drops to 1.6A when feeding bulk capacitors directly after rectification without inrush limiting.

What is the maximum ambient temperature for full 2.0A operation?

Full 2.0A average forward current is rated only at TA = 55°C, provided leads are maintained at ambient temperature at 9.5 mm from the case. Above 55°C, current must be linearly derated - e.g., 1.0A at 125°C ambient per the Fig. 1 derating curve.

Does 2A05G-T have a specified junction-to-case thermal resistance (RθJC)?

No - the datasheet specifies only RθJA = 60°C/W. RθJC is not published; thermal design must rely on ambient-referenced measurements or empirical board-level characterization using the DO-15 lead geometry and PCB copper area.

Can 2A05G-T replace 2A04G-T in an existing design?

Yes - both share identical package, thermal specs, and surge rating; the only difference is VRRM (400V vs. 600V). Substituting 2A05G-T provides higher reverse voltage margin and is safe if the original design operated below 400V reverse stress - no layout or thermal changes needed.