Taiwan Semiconductor Corporation GPA805

Overview

GPA805 from Taiwan Semiconductor is a single-die, glass-passivated standard rectifier diode rated for 600 V repetitive peak reverse voltage (V_RRM), 8 A average forward current (I_F), and 150 A non-repetitive surge current (I_FSM), used in DC-DC converters and switching-mode inverters where high reliability and low forward voltage are critical.

For engineers reviewing the GPA805 datasheet, GPA805 pinout, GPA805 application, or GPA805 equivalent, key selection factors include its TO-220AC package thermal resistance (R_θJC = 2.5 °C/W), 1.1 V max forward voltage at 8 A/25°C, and AEC-Q101 qualification availability (GPA805H variant).

Technical Context

The GPA805 operates as a unidirectional power rectifier with a single PN junction optimized for high-efficiency AC-to-DC conversion in industrial and automotive power supplies. Its glass-passivated chip junction ensures stable performance under thermal cycling and humidity stress.

Designed for operation up to 150°C junction temperature, it delivers 5 µA max reverse leakage at 25°C and 100 µA at 125°C under rated reverse voltage, with 50 pF typical junction capacitance at 1 MHz and 4 V bias - enabling predictable switching behavior in high-frequency SMPS designs.

Key Specifications

Pinout & Package

Package: TO-220AC - 3-lead, single-ended through-hole package with isolated tab (cathode-connected tab), UL 94V-0 molding compound, matte tin-plated leads compliant with J-STD-002 solderability.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH8R06D and MUR860E, GPA805 offers the lowest forward voltage and tightest leakage spec in its class - making it optimal for efficiency-critical, thermally limited, or low-noise auxiliary power applications where ultra-low conduction loss and stability are prioritized over ultra-fast recovery.

Availability

GPA805 is available at Aetrix Electronics and suitable for industrial DC-DC converters, automotive onboard chargers, and telecom power supplies requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.

Supply support for GPA805 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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in power rectifiers, TVS diodes, and MOSFETs for industrial and automotive markets.

The GPA801–GPA807 family was engineered to deliver high-reliability, high-surge-capability standard rectifiers with AEC-Q101 qualification options - targeting cost-sensitive yet mission-critical power conversion in automotive, telecom, and renewable energy systems.

FAQ

What is the maximum junction temperature rating for GPA805?

The GPA805 has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet (Version G2103). This allows operation in high-ambient environments such as enclosed power supplies or automotive under-hood locations, provided thermal design maintains T_J ≤ 150°C. The GPA805 datasheet specifies derating curves confirming usable current down to 0 A at 150°C case temperature.

Is GPA805 available in an AEC-Q101 qualified version?

Yes, the AEC-Q101 qualified version of GPA805 is designated GPA805H and shares identical electrical and thermal specifications with the standard GPA805, except for extended stress testing per JEDEC standards. The "H" suffix indicates qualification for automotive applications including engine control units and onboard chargers. GPA805H is offered in the same TO-220AC package and 50/tube packing format.

What is the forward voltage of GPA805 at 8 A and 125°C junction temperature?

The GPA805 datasheet specifies forward voltage (V_F) only at 25°C junction temperature (max 1.1 V @ 8 A). While V_F decreases with rising temperature, no guaranteed max value is published at 125°C. Engineers should use the typical V_F curve (Figure 4) showing ~0.92 V at 8 A and 125°C, but design margins must rely on the 25°C max spec unless application-specific characterization is performed on the GPA805 device.

Does GPA805 have a built-in thermal shutdown feature?

No, GPA805 is a passive standard rectifier diode and does not include any integrated thermal shutdown, protection circuitry, or active control functions. It relies entirely on external thermal management - such as heatsinking, airflow, and PCB copper area - to maintain safe junction temperature. Protection against overtemperature must be implemented at the system level using thermistors, controllers, or current limiting, as the GPA805 itself provides no monitoring or self-protection capability.

What is the polarity marking convention for GPA805 in TO-220AC package?

The GPA805 uses standard TO-220AC polarity marking: the cathode is connected to the metal tab and marked with a white band or "K" symbol adjacent to the cathode lead on the plastic body. The anode is the unmarked lead opposite the tab. This matches industry-standard rectifier orientation and ensures correct placement in bridge configurations or single-diode applications without risk of reverse-bias damage during assembly.