Taiwan Semiconductor Corporation FR201G-T

Overview

FR201G-T from Taiwan Semiconductor is a 2 A, 50 V fast recovery rectifier diode in DO-204AC (DO-15) package, featuring 1.3 V max forward voltage at 2 A, 55 A surge current capability, 150 ns reverse recovery time, and glass passivated junction for reliability in switching power supplies.

For engineers reviewing the FR201G-T datasheet, FR201G-T pinout, FR201G-T application, or FR201G-T equivalent, key selection criteria include its 50 V repetitive peak reverse voltage, low 1.3 V VF at rated current, 150 ns trr for high-frequency operation, RoHS/halogen-free compliance, and DO-15 mechanical compatibility with standard through-hole layouts.

Technical Context

The FR201G-T employs a single-die silicon PN junction with glass passivation to ensure stable reverse leakage (<5 µA at 25°C) and thermal robustness up to 150°C junction temperature. Its fast recovery behavior (trr = 150 ns) enables efficient operation in DC–DC converters and SMPS operating above 20 kHz.

Designed for unidirectional conduction, it delivers 2 A average forward current with 70°C/W junction-to-ambient thermal resistance and withstands 55 A non-repetitive surge (8.3 ms half-sine), making it suitable for transient-heavy input rectification stages where low conduction loss and controlled reverse recovery are critical.

Key Specifications

Pinout & Package

Package: DO-204AC (DO-15), axial leaded, glass-passivated, cathode indicated by band. Weight: 0.400 g. RoHS and halogen-free compliant per IEC 61249-2-21.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH2R06 and 1N4933, the FR201G-T offers optimal balance of 50 V rating, 150 ns trr, and DO-15 compatibility-making it ideal for mid-frequency (50–150 kHz) industrial and adapter designs requiring proven reliability and straightforward layout reuse.

Availability

FR201G-T is available at Aetrix Electronics and suitable for DC–DC converters, switching mode power supplies, and industrial rectification requiring stable component supply, consistent parametric performance, and long-term manufacturability assurance.

Supply support for FR201G-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

Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in rectifiers, TVS diodes, MOSFETs, and bipolar transistors since 1979.

The FR201G-T belongs to TSC's FRxG-T fast recovery rectifier family, engineered specifically for high-efficiency, high-reliability AC/DC and DC/DC conversion in industrial, computing, and consumer power systems.

FAQ

What is the maximum repetitive peak reverse voltage (VRRM) for FR201G-T?

The FR201G-T has a VRRM rating of 50 V, meaning it can reliably block up to 50 V of reverse voltage in repetitive operation without breakdown. This value is fixed for the FR201G-T variant and distinguishes it from higher-voltage members like FR202G-T (100 V) or FR207G-T (1000 V). Exceeding 50 V risks avalanche failure and permanent damage to the FR201G-T.

What does the "G" suffix in FR201G-T signify?

The "G" in FR201G-T indicates green molding compound compliant with RoHS and halogen-free standards per IEC 61249-2-21. It is not a grade or tolerance code. The "-T" denotes tape-and-reel packaging (3,500 units per reel). The full ordering code FR201G-T uniquely identifies the 50 V, DO-15 packaged, RoHS-compliant version of the FR201G-T rectifier.

Is FR201G-T suitable for surface-mount assembly?

No, the FR201G-T uses a DO-204AC (DO-15) axial lead package designed exclusively for through-hole mounting. It lacks SMD-compatible terminations or footprint geometry. For surface-mount equivalents, consider TSC's SMT fast recovery rectifiers such as the FRS201G (SMA package), not the FR201G-T. Attempting reflow or hand-soldering of FR201G-T on SMT pads will cause mechanical stress and solder joint failure.

What is the thermal resistance (RθJA) of FR201G-T, and how does it affect layout?

The FR201G-T has a junction-to-ambient thermal resistance of 70°C/W under standard JEDEC test conditions (single device on FR-4, 1-inch² copper pad). This means each watt of power dissipated raises the junction temperature by 70°C above ambient. To maintain TJ ≤ 150°C at full 2 A load (2.6 W max), ambient must stay below ~60°C-or PCB copper area must be increased to reduce RθJA below 35°C/W via thermal vias and internal planes.

How does FR201G-T compare to standard recovery rectifiers like 1N4001 in switching applications?

The FR201G-T offers significantly faster reverse recovery (150 ns vs. >4 µs for 1N4001), lower VF (1.3 V vs. ~1.1 V at low current but rising sharply at 2 A), and higher surge rating (55 A vs. 30 A). In switching applications, this translates to lower switching losses, reduced EMI, and cooler operation-but at higher cost. The 1N4001 remains viable only in low-frequency (<1 kHz), low-efficiency linear supplies, not in modern SMPS where FR201G-T is the appropriate choice.