Toshiba Semiconductor and Storage TRS12V65H,LQ

Overview

TRS12V65H from Toshiba Electronic Devices & Storage Corporation is a 650 V, 12 A silicon carbide Schottky barrier diode optimized for high-frequency, high-efficiency power conversion. It delivers VF = 1.2 V (typ.) at 12 A, Qc = 33 nC (typ.), and IR = 2.4 µA (typ.) at 650 V, with thermal resistance Rth(j-c) = 1.70 °C/W. It is used in PFC stages of server PSUs and solar inverters requiring low conduction loss and fast switching.

For engineers reviewing the TRS12V65H datasheet, TRS12V65H pinout, TRS12V65H application, or TRS12V65H equivalent, key selection criteria include its DFN8x8 package with heatsink cathode, SiC-based low-Qc performance, and validated operation up to 175 °C junction temperature in hard-switched topologies.

Technical Context

The TRS12V65H implements a third-generation SiC chip design enabling stable unipolar conduction without reverse recovery charge. Its low Qc (33 nC typ.) and minimal IR (2.4 µA typ. at 650 V) reduce switching losses and leakage-related thermal stress in continuous conduction mode (CCM) PFC.

Thermal performance is defined by Rth(j-c) = 1.70 °C/W (max), with cathode terminal (Pin 5) serving as the primary heatsink interface. Absolute maximum ratings specify IF(DC) = 12 A at Tc = 142 °C and IFSM = 30 A (10 ms half-sine), supporting robust surge handling in DC-DC and UPS front-end designs.

Key Specifications

Pinout & Package

TRS12V65H uses the DFN8x8 surface-mount package (Toshiba designation: 2-8T1A), with exposed cathode pad (Pin 5) acting as the primary thermal interface. The package weighs 0.175 g (typ.) and features no internal bonding wires, enhancing reliability under thermal cycling.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar SiC Schottky diode applications.

Compared with STPSC12065DL and DSSK12-06A, the TRS12V65H offers the lowest combined VF/Qc/Rth(j-c) profile in DFN8x8 format, delivering superior thermal and switching performance in high-density, high-frequency power converters where board area and junction temperature are tightly constrained.

Availability

TRS12V65H is available at Aetrix Electronics and suitable for Power Factor Correction, Solar Inverters, and Uninterruptible Power Supplies requiring stable component supply and long-term industrial lifecycle support.

Supply support for TRS12V65H 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

Toshiba Electronic Devices & Storage Corporation designs and manufactures discrete semiconductors and power devices with focus on reliability, thermal performance, and industrial-grade longevity.

The TRS12V65H belongs to Toshiba's third-generation SiC Schottky diode product line, engineered specifically for high-efficiency, high-power-density AC-DC and DC-DC conversion in renewable energy and datacenter infrastructure.

FAQ

What is the maximum junction temperature rating for the TRS12V65H?

The TRS12V65H has a maximum junction temperature (Tj) rating of 175 °C, verified per Toshiba's absolute maximum ratings table. This allows sustained operation in high-ambient environments such as enclosed server PSUs or outdoor solar inverters. Derating curves in the datasheet confirm usable current capability down to 8 A at Tj = 175 °C. The TRS12V65H must be mounted with adequate thermal interface to maintain this limit under full-load conditions.

Does the TRS12V65H have a pin-to-pin replacement in Toshiba's portfolio?

No, the TRS12V65H is the sole Toshiba part in the DFN8x8 package with 650 V VRRM, 12 A IF(DC), and third-generation SiC die. Toshiba's TRS12V65D uses identical die but in DPAK, while TRS08V65H is a lower-current (8 A) variant. Neither is pin-compatible with TRS12V65H due to differing package footprints and terminal assignments. TRS12V65H requires dedicated PCB layout.

How is thermal management implemented on the TRS12V65H?

Thermal management for the TRS12V65H relies on Pin 5-the exposed cathode pad-which serves as the primary heatsink interface. With Rth(j-c) = 1.70 °C/W max, optimal performance requires soldering Pin 5 to ≥25 mm² of 2 oz copper with ≥4 thermal vias. Pins 3 and 4 (anode) carry current but contribute minimally to heat extraction. No external heatsink is needed if PCB thermal design meets datasheet layout guidelines.

What does "N.C." mean for Pins 1 and 2 on the TRS12V65H?

"N.C." stands for "No Connect" - Pins 1 and 2 are electrically isolated internal terminals with no bond wire connection to the SiC die. They must remain unconnected on the PCB to prevent parasitic capacitance or unintended coupling. Toshiba explicitly states these pins are not to be tied to ground, VCC, or any other net. Leaving them floating is mandatory per the datasheet's Packaging and Internal Circuit section.

Is the TRS12V65H RoHS compliant and halogen-free?

Yes, the TRS12V65H is RoHS compliant and halogen-free per Toshiba's environmental documentation. The device meets EU Directive 2011/65/EU and contains <900 ppm bromine and <900 ppm chlorine. Full compliance data, including REACH and conflict minerals statements, is available via Toshiba's official product page and can be supplied upon request for Aetrix Electronics customers.