Taiwan Semiconductor Corporation HS2MFL

Overview

HS2MFL from Taiwan Semiconductor is a 1000 V, 2 A surface-mount high-efficiency fast recovery rectifier in SOD-123FL package, featuring 1.42 V forward voltage at 2 A and 25°C, 75 ns reverse recovery time, and 10 pF junction capacitance - deployed in DC-DC converters and switching inverters requiring high-voltage blocking and low-loss conduction.

For engineers reviewing the HS2MFL datasheet, HS2MFL pinout, HS2MFL application, or HS2MFL equivalent, key selection criteria include peak reverse voltage rating (1000 V), thermal resistance (R_θJA = 116 °C/W), reverse leakage (≤125 µA at 125°C), and SOD-123FL footprint compatibility with automated assembly processes.

Technical Context

The HS2MFL is a single-die, silicon planar epitaxial fast recovery rectifier with glass-passivated junction, optimized for high-voltage switching applications where low reverse recovery charge and stable high-temperature leakage performance are critical. Its 75 ns trr and 10 pF CJ at 1 MHz/4 V support efficient operation in 100–500 kHz SMPS topologies.

Thermal design relies on its R_θJL = 81 °C/W and R_θJC = 69 °C/W values measured on a 5 mm × 5 mm Cu pad PCB, enabling 2 A continuous current handling up to +150°C junction temperature under proper board layout conditions.

Key Specifications

Pinout & Package

SOD-123FL package: surface-mount, molded plastic case with matte tin-plated leads, cathode band polarity marking, UL 94V-0 rated compound, and JESD201 Class 1 whisker resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH2R06 and ES2J, the HS2MFL uniquely delivers 1000 V blocking in SOD-123FL while maintaining 75 ns recovery and low leakage - making it optimal for compact, high-input-voltage industrial DC-DC stages where both voltage headroom and surface-mount scalability matter.

Availability

HS2MFL is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, and industrial power supplies requiring stable component supply with consistent parametric performance across production lots.

Supply support for HS2MFL 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 rectifiers, TVS diodes, and MOSFETs for industrial and computing markets.

The HS2MFL belongs to TSC's HS2xFL high-voltage fast recovery rectifier family, engineered specifically for space-constrained, high-efficiency AC-DC and DC-DC conversion systems demanding extended voltage margin and robust thermal performance.

FAQ

What is the maximum repetitive peak reverse voltage rating for HS2MFL?

The HS2MFL has a maximum repetitive peak reverse voltage (V_RRM) of 1000 V, verified per absolute maximum ratings table in the official Taiwan Semiconductor datasheet Version B2103. This rating enables use in high-voltage DC bus applications such as 700 V PFC outputs or 1000 V solar string inverters where transient overvoltage margin is critical. The HS2MFL maintains this rating across its full operating temperature range from –55°C to +150°C.

Does HS2MFL have a specified reverse recovery time, and how does it compare to lower-voltage variants in the same family?

Yes, the HS2MFL has a specified reverse recovery time (t_rr) of 75 ns under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A test conditions. This value is identical to HS2JFL and HS2KFL but longer than HS2DFL (50 ns) and HS2GFL (50 ns), reflecting the trade-off between higher voltage capability and minority carrier lifetime tuning. The HS2MFL's 75 ns t_rr remains suitable for 100–300 kHz switching frequencies in modern SMPS designs.

What is the forward voltage drop of HS2MFL at rated current and room temperature?

The HS2MFL exhibits a typical forward voltage (V_F) of 1.42 V at 2 A and 25°C, with a maximum of 1.70 V under the same conditions. This value is confirmed in the Electrical Specifications table for HS2JFL–HS2MFL group in the B2103 datasheet. At elevated temperature (125°C), V_F drops to 1.24 V (typ) and 1.50 V (max), reflecting the negative temperature coefficient of silicon PN junctions - an important consideration for thermal stability analysis in HS2MFL-based designs.

Is HS2MFL compatible with lead-free reflow soldering processes?

Yes, HS2MFL is fully compatible with lead-free reflow soldering. Its matte tin-plated leads meet J-STD-002 solderability requirements, and its moisture sensitivity level is rated Class 1 per J-STD-020 - meaning it can be stored indefinitely at ≤30°C/85% RH without baking prior to assembly. The SOD-123FL package also withstands peak reflow temperatures up to 260°C, aligning with IPC/JEDEC J-STD-020D.2 specifications for HS2MFL manufacturing integration.

What thermal resistance values are specified for HS2MFL, and how are they measured?

HS2MFL specifies R_θJL = 81 °C/W (junction-to-lead), R_θJC = 69 °C/W (junction-to-case), and R_θJA = 116 °C/W (junction-to-ambient). All values are measured on a standardized 5 mm × 5 mm copper pad PCB per JEDEC standards. R_θJA reflects real-world board-level thermal performance, allowing designers to calculate junction temperature rise as T_J = T_A + (P_LOSS × 116), where P_LOSS combines conduction and switching losses in the HS2MFL.