Taiwan Semiconductor Corporation TPMR6G

Overview

TPMR6G from Taiwan Semiconductor is a 600V, 6A surface-mount ultrafast recovery rectifier diode in TO-277 package, with 35ns reverse recovery time (trr), 1.85V forward voltage (VF) at 6A, and 100µA maximum reverse leakage current (IR) at 600V, used in high-frequency AC/DC converters and PFC stages.

For engineers reviewing the TPMR6G datasheet, TPMR6G pinout, TPMR6G application, or TPMR6G equivalent, key selection criteria include its ultrafast switching performance, thermal robustness up to 175°C junction temperature, low conduction loss, and compatibility with automated SMT assembly on compact power supply PCBs.

Technical Context

The TPMR6G employs an optimized epitaxial silicon PN junction with controlled carrier lifetime to achieve ultrafast recovery without snubber circuits. Its design targets high-efficiency flyback and boost topologies operating above 50kHz.

Thermal performance is enhanced by the TO-277's copper leadframe and low thermal resistance (RθJA = 40°C/W typical on 1-inch² 2-oz Cu pad), enabling sustained 6A conduction at TJ ≤ 125°C under natural convection.

Key Specifications

Pinout & Package

TPMR6G uses the TO-277 (SMP) molded plastic package per JEDEC standard, featuring a single-row 2-pin configuration with exposed cathode tab for thermal and electrical connection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-6EWH06FN-M3 and MUR660CT, the TPMR6G delivers superior high-frequency efficiency via its 35ns trr and lower VF, while maintaining full TO-277 SMT compatibility-making it optimal for next-generation compact, high-switching-frequency power supplies.

Availability

TPMR6G is available at Aetrix Electronics and suitable for server AC/DC power supplies, industrial motor drive front-ends, and LED streetlight drivers requiring stable component supply and long-term production continuity.

Supply support for TPMR6G 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 high-reliability power devices.

The TPMR6G belongs to TSC's TPMR ultrafast rectifier family, engineered specifically for high-efficiency, high-frequency switch-mode power conversion in industrial and infrastructure applications.

FAQ

What is the maximum junction temperature rating for TPMR6G?

The TPMR6G has a maximum junction temperature (TJ max) of 175°C, verified per JEDEC JESD22-A108 stress testing. This allows continuous operation in high-ambient environments such as enclosed LED drivers or industrial control cabinets without thermal derating below 125°C ambient. The TPMR6G maintains specified electrical parameters up to this limit when mounted on a 1-inch² 2-oz Cu pad per datasheet thermal test conditions.

Does TPMR6G support automated SMT placement and reflow?

Yes, the TPMR6G is qualified for standard lead-free reflow profiles (J-STD-020, peak 260°C). Its TO-277 package features coplanar leads and mold compound rated for >1000 thermal cycles. The device is compatible with SPI inspection and AOI systems due to its defined marking layout (YW F code) and consistent body dimensions (6.50±0.15 mm × 4.30±0.05 mm). TPMR6G has been validated in high-volume SMT lines for telecom and server PSU manufacturing.

How does TPMR6G's reverse recovery time compare to standard FRDs?

The TPMR6G achieves a trr of 35ns at IF = 6A and VR = 400V, which is 40–50% faster than typical fast recovery diodes (FRDs) rated at 60–80ns in the same voltage/current class. This reduction directly lowers switching loss and EMI generation in 100–300kHz converters. Unlike standard FRDs, the TPMR6G's trr remains stable across temperature (25°C to 125°C), ensuring consistent performance in thermally varying applications.

Is TPMR6G pin-compatible with TPMR6J?

Yes, TPMR6G and TPMR6J share identical TO-277 package dimensions, pinout, and thermal-mechanical specifications. The only difference is their maximum repetitive peak reverse voltage: TPMR6G is rated at 600V, while TPMR6J is rated at 1000V. Both devices use the same footprint, solder pad layout, and thermal interface design, allowing direct substitution in layouts where 600V rating suffices-no PCB changes required for TPMR6G replacement of TPMR6J in lower-voltage designs.

What is the thermal resistance (RθJA) of TPMR6G under standard PCB conditions?

The TPMR6G exhibits a typical junction-to-ambient thermal resistance (RθJA) of 40°C/W when mounted on a 1-inch² pad of 2-oz copper on FR-4 PCB, per JEDEC 51-7 test conditions. This value is measured with no external heatsink and natural convection. With a 10°C/W heatsink attached to the cathode tab, RθJA improves to ≤15°C/W, enabling 6A operation at full ambient temperature rating. Thermal performance data for TPMR6G is published in TSC's official datasheet revision D2309.