Taiwan Semiconductor Corporation HS2JFL

Overview

HS2JFL from Taiwan Semiconductor is a 2 A, 600 V high-efficiency surface-mount fast recovery rectifier in SOD-123FL package, featuring 1.42 V forward voltage at 2 A / 25°C, 75 ns reverse recovery time, and 10 pF junction capacitance - deployed in DC-DC converters and switching-mode inverters.

For engineers reviewing the HS2JFL datasheet, HS2JFL pinout, HS2JFL application, or HS2JFL equivalent, key selection criteria include its 600 V repetitive peak reverse voltage, thermal resistance (R_θJA = 116 °C/W), low leakage (<5 µA @ 25°C), and compatibility with automated placement on high-density PCBs.

Technical Context

This device is a single-die, glass-passivated silicon PN junction rectifier optimized for high-voltage switching applications. Its 75 ns trr and 10 pF CJ support efficient operation in 100–500 kHz SMPS topologies while maintaining low conduction loss at 2 A continuous forward current.

The SOD-123FL package enables compact layout with matte tin-plated leads compliant to J-STD-002 solderability and JESD 201 Class 1 whisker resistance. Polarity is indicated by cathode band; maximum junction temperature is rated at +150°C.

Key Specifications

Pinout & Package

Package: SOD-123FL - surface-mount plastic case with gull-wing leads, UL 94V-0 rated molding compound, 0.016 g mass, cathode band polarity marking.

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 HS2JFL delivers superior board-area efficiency and lower high-frequency losses due to its optimized 75 ns t_rr and 10 pF C_J, while maintaining full SOD-123FL manufacturability and thermal performance on standard PCB pads.

Availability

HS2JFL is available at Aetrix Electronics and suitable for DC-DC converter output rectification, switching mode inverter freewheeling, and industrial PLC power input stages requiring stable component supply and consistent parametric performance across production lots.

Supply support for HS2JFL 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, serving industrial, computing, and consumer markets since 1979.

The HS2JFL belongs to TSC's HS2xFL high-voltage fast recovery rectifier family, engineered specifically for space-constrained, high-efficiency switching power supplies operating up to 500 kHz.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for HS2JFL?

The HS2JFL has a V_RRM rating of 600 V, verified per the official Taiwan Semiconductor datasheet Version B2103. This value defines the highest instantaneous reverse voltage the device can block repeatedly without breakdown. It is critical for ensuring reliable operation in 400 V DC bus or 264 V AC-derived systems where peak line voltage exceeds 370 V. The HS2JFL must not be used in circuits where reverse voltage exceeds this limit, even momentarily, unless derated per application-specific stress analysis.

Does HS2JFL support automated PCB assembly?

Yes, the HS2JFL is explicitly designed for automated placement, as confirmed in the "FEATURES" section of the Taiwan Semiconductor datasheet. Its SOD-123FL package features matte tin-plated gull-wing leads compliant with J-STD-002 solderability standards and moisture sensitivity level (MSL) 1 per J-STD-020 - meaning it can be stored indefinitely at ambient conditions without baking prior to reflow. The HS2JFL's standardized footprint and cathode band marking simplify vision-based alignment in high-speed pick-and-place systems.

What is the forward voltage (V_F) of HS2JFL at 2 A and 125°C?

Per the ELECTRICAL SPECIFICATIONS table in the HS2JFL datasheet, the maximum forward voltage is 1.50 V at 2 A and TJ = 125°C. The typical value is 1.24 V under those same conditions. This elevated V_F reflects increased semiconductor resistivity at high junction temperatures and directly impacts conduction loss in thermally stressed environments. Designers using HS2JFL must verify thermal design ensures TJ remains within limits to maintain predictable V_F behavior across the full operating range.

How does the reverse recovery time (t_rr) of HS2JFL compare to HS2DFL?

The HS2JFL has a specified t_rr of 75 ns, whereas the HS2DFL is rated at 50 ns - both measured under identical conditions (IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A). This difference arises from process optimization for higher voltage blocking: higher V_RRM devices like HS2JFL trade some speed for improved depletion region control. While HS2DFL suits faster 1 MHz+ topologies, the HS2JFL's 75 ns t_rr remains fully adequate for most 200–500 kHz SMPS designs where its 600 V rating provides essential margin.

Is HS2JFL halogen-free and RoHS compliant?

Yes, the HS2JFL is both halogen-free per IEC 61249-2-21 and RoHS compliant, as stated in the "FEATURES" section of the official Taiwan Semiconductor datasheet. These certifications apply to the completed device, including molding compound and lead finish. No exemptions are claimed. This compliance ensures the HS2JFL meets environmental regulations for sale and deployment in EU, China, South Korea, and other regulated markets - critical for industrial and medical-adjacent equipment where substance restrictions are enforced.