Diodes Incorporated D3G-T

Overview

D3G-T from Diodes Incorporated is a 1.0A glass passivated general-purpose rectifier diode with 200V peak repetitive reverse voltage (VRRM), 1.0V forward voltage at 1.0A, and 30A non-repetitive surge capability - used in AC/DC input stage rectification for industrial power supplies and LED drivers.

For engineers reviewing the D3G-T datasheet, D3G-T pinout, D3G-T application, or D3G-T equivalent, key selection criteria include VRRM rating, thermal resistance (100°C/W), reverse recovery time (2.0µs), and T-1 package compatibility with through-hole PCB layouts requiring robust surge handling.

Technical Context

This device operates as a single-phase, half-wave silicon rectifier optimized for resistive or inductive loads at 60Hz. It features glass passivation for enhanced moisture resistance and reliability under thermal cycling.

Its 2.0µs reverse recovery time supports moderate-frequency switching applications, while its 8.0pF junction capacitance minimizes high-frequency noise coupling in EMI-sensitive designs.

Key Specifications

Pinout & Package

Package: T-1 molded plastic case (UL 94V-0), axial lead configuration with cathode band marking. Dimensions: A = 25.40 mm (length), B = 2.60–3.20 mm (diameter), C = 0.53–0.64 mm (lead diameter), D = 2.20–2.60 mm (lead spacing).

Key Features

Applications

Equivalent & Alternatives

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

Compared with 1N4002-T and ES1D-E3/54, D3G-T offers balanced surge robustness, through-hole compatibility, and proven reliability in legacy industrial power stages - making it optimal where mechanical ruggedness and ease of hand-soldering matter more than ultra-fast recovery or miniaturization.

Availability

D3G-T is available at Aetrix Electronics and suitable for AC/DC power adapters, industrial LED drivers, DC motor control circuits, and relay interface modules requiring stable component supply across extended production lifecycles.

Supply support for D3G-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, with design and manufacturing operations across Asia and the Americas.

The D1G–D7G series targets cost-sensitive, high-volume rectification needs in industrial, consumer, and lighting applications - emphasizing reliability, surge tolerance, and RoHS compliance in axial-leaded packages.

FAQ

What is the maximum operating temperature for D3G-T?

The D3G-T has an operating junction temperature range of –65°C to +150°C. Its rated 1.0A average forward current assumes a 75°C ambient temperature with leads maintained at ambient at 9.5mm from the case; exceeding this ambient requires derating per Figure 1 in the datasheet.

Can D3G-T be used in capacitive-load circuits?

No - the datasheet explicitly states that for capacitive loads, the average rectified output current must be derated by 20%. This is due to increased peak current stress during capacitor charging; use with bulk capacitors requires verifying peak current does not exceed 30A IFSM limit.

Is D3G-T suitable for high-frequency switching applications?

It is limited to moderate frequencies: its 2.0µs reverse recovery time makes it appropriate for ≤100kHz operation. For >200kHz SMPS outputs, fast recovery or Schottky diodes (e.g., ES1D) are preferred to minimize switching loss and EMI.

What does the "-T" suffix indicate in D3G-T?

The "-T" denotes tape-and-reel packaging: 5,000 units per reel on 13-inch diameter reels, optimized for automated pick-and-place assembly. The base part D3G refers to the device itself; "-T" specifies the packaging format per Diodes' ordering nomenclature.