Diodes Incorporated D7G-T

Overview

D7G-T from Diodes Incorporated is a 1.0A glass passivated general-purpose rectifier diode with 1000V peak repetitive reverse voltage (VRRM), 1.0V forward voltage at 1.0A, and 30A non-repetitive surge capability-designed for AC/DC input stage rectification in offline power supplies, LED drivers, and industrial control power inputs.

For engineers reviewing the D7G-T datasheet, D7G-T pinout, D7G-T application, or D7G-T equivalent, key selection criteria include its T-1 axial package compatibility, 100°C/W junction-to-ambient thermal resistance, 2.0µs reverse recovery time, and RoHS-compliant tin-plated terminals suitable for wave and reflow soldering per MIL-STD-202.

Technical Context

This device operates as a single-phase, half-wave silicon rectifier optimized for resistive or inductive loads at 60Hz. Its glass passivated die construction ensures stable reverse leakage (<5.0µA at 25°C, <50µA at 100°C) and robust surge tolerance up to 30A (8.3ms half-sine).

Thermal derating follows a linear curve: full 1.0A average current is rated only at TA = 75°C with leads held at ambient at 9.5mm from case; junction temperature must remain within –65°C to +150°C under operation or storage.

Key Specifications

Pinout & Package

Package: T-1 axial leaded molded plastic case (UL 94V-0), 25.4mm overall length, 2.6–3.2mm body diameter, cathode band marking, 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 general-purpose rectifier applications.

Compared with 1N5408G, D7G-T delivers lower conduction loss and superior surge resilience due to glass passivation and tighter trr spec; versus GBU10K, it offers simpler layout and lower BOM count for half-wave use cases despite lower surge rating.

Availability

D7G-T is available at Aetrix Electronics and suitable for AC/DC adapter input rectification, industrial PLC power supply design, LED driver bulk rectification, and UPS battery charger input stages requiring stable component supply across multi-year production cycles.

Supply support for D7G-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, manufacturing, and sales operations across Asia, Europe, and North America.

The D1G–D7G series belongs to Diodes' general-purpose rectifier product line, engineered for cost-effective, high-reliability AC/DC conversion in consumer, industrial, and lighting applications where robustness and regulatory compliance are critical.

FAQ

What is the maximum allowable ambient temperature for continuous 1.0A operation?

D7G-T sustains 1.0A average forward current only at TA = 75°C, provided leads are maintained at ambient temperature at a distance of 9.5mm from the case. Above this temperature, current must be linearly derated per Figure 1 in DS29001 Rev. 5–3, reaching zero at 150°C ambient.

Can D7G-T replace 1N4007 in existing designs?

No-D7G-T has 1000V VRRM versus 1N4007's 1000V rating, but its 1.0A IO rating applies only at 75°C (vs. 1N4007's 1.0A at 100°C). Thermal design must be revalidated; also, D7G-T's faster trr may increase ringing in poorly damped circuits originally tuned for 1N4007.

Is D7G-T suitable for capacitive-input filter applications?

No-the datasheet explicitly states "For capacitive load, derate current by 20%." At full 1.0A average rating, capacitive-input operation would require limiting IO to 0.8A to prevent premature failure due to high peak currents and elevated junction temperature.

Does D7G-T meet automotive qualification standards?

No-D7G-T is not AEC-Q101 qualified. It lacks automotive-grade screening, extended temperature validation beyond –65°C to +150°C, and failure rate reporting per AEC standards. Use only in industrial, commercial, or consumer applications unless fully requalified per customer-specific requirements.