Diodes Incorporated GBJ8005

Overview

GBJ8005 from Diodes Incorporated is a standard recovery 4-diode bridge rectifier in GBJ package, rated for 50 V repetitive peak reverse voltage (V_RRM), 8.0 A average forward current (I_O), and 1.0 V max forward voltage at 4 A. It delivers 170 A non-repetitive surge capability and is designed for AC-to-DC conversion in industrial power supplies and motor control PCBs.

For engineers reviewing the GBJ8005 datasheet, GBJ8005 pinout, GBJ8005 application, or GBJ8005 equivalent, key selection criteria include its 50 V V_RRM, 8 A thermal-rated output, 1.0 V VF at 4 A, 1500 V_RMS dielectric strength, and through-hole GBJ package with #6 screw mounting.

Technical Context

The GBJ8005 integrates four silicon junction diodes in a single-phase full-wave bridge configuration, enabling unidirectional DC output from AC input without external wiring. Its glass-passivated die construction ensures stable reverse leakage (<5 µA at 25°C) and robust surge tolerance (170 A peak, 8.3 ms half-sine).

Thermal performance is defined by a typical junction-to-case thermal resistance of 1.6 °C/W when mounted on a 100 mm × 100 mm × 1.6 mm aluminum heatsink, supporting continuous 8 A operation at T_C = +110°C. The device operates across –55°C to +150°C junction temperature range.

Key Specifications

Pinout & Package

Package: GBJ - Molded plastic through-hole package with plated leads (lead-free tin finish), UL 94V-0 rated, weight ≈6.6 g, designed for #6 screw mounting (max torque 5.0 in-lbs). Dimensions: 30.0 mm × 20.0 mm × 17.5 mm (L×W×H).

Key Features

Applications

Equivalent & Alternatives

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

Compared with GBU8K, the GBJ8005 offers superior mechanical mounting rigidity and higher surge tolerance (170 A vs. 120 A), while KBP205 lacks the current and thermal capability for primary rectification-making GBJ8005 the only viable choice for 8 A industrial power stages.

Availability

GBJ8005 is available at Aetrix Electronics and suitable for industrial power supplies, motor control boards, LED driver systems, and appliance control boards requiring stable component supply and long-term manufacturability.

Supply support for GBJ8005 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 GBJ series belongs to Diodes' standard recovery bridge rectifier product line, engineered for cost-effective, high-reliability AC/DC conversion in industrial, consumer, and automotive auxiliary power applications.

FAQ

What is the maximum allowable mounting torque for the GBJ8005?

The GBJ8005 is specified for through-hole mounting using a #6 screw with a maximum torque of 5.0 in-lbs. Exceeding this value risks cracking the molded plastic package or damaging internal wire bonds, potentially causing premature failure or increased leakage current.

Does the GBJ8005 meet automotive qualification standards?

The GBJ8005 is not AEC-Q101 qualified. Diodes offers automotive-grade variants (e.g., GBJ8005Q) with PPAP documentation and IATF 16949 manufacturing, but the standard GBJ8005-F is intended for industrial and commercial applications only.

How does the 1.0 V forward voltage affect thermal design?

At 4 A load, the 1.0 V V_F yields 4 W of conduction loss. Combined with its 1.6 °C/W R_θJC, this requires a heatsink capable of maintaining case temperature ≤110°C-typically achieved with ≥100 mm² aluminum surface area and forced air or conduction cooling.

Can the GBJ8005 replace a GBJ801 in a 100 V circuit?

No. The GBJ8005 has a 50 V V_RRM rating and will experience avalanche breakdown above ~70 V reverse voltage. Using it in a 100 V circuit risks catastrophic failure. Only GBJ801 (100 V) or higher-voltage variants (GBJ802–GBJ810) are suitable for circuits exceeding 50 V peak reverse stress.