Taiwan Semiconductor Corporation HS2JA

Overview

HS2JA from Taiwan Semiconductor is a 1.5A, 600V repetitive peak reverse voltage (V_RRM) surface-mount fast recovery rectifier in DO-214AC (SMA) package, featuring 75 ns reverse recovery time (t_rr), 1.7 V forward voltage at 1.5 A, and 30 pF junction capacitance at 1 MHz/4 V - deployed in DC-DC converters and snubber circuits.

For engineers reviewing the HS2JA datasheet, HS2JA pinout, HS2JA application, or HS2JA equivalent, key selection criteria include its 600 V V_RRM, 50 A I_FSM, 150 °C maximum junction temperature, low-profile SMA package compatibility with automated placement, and verified performance in switching-mode inverters and freewheeling paths.

Technical Context

The HS2JA uses a single-die, glass-passivated PN junction optimized for fast recovery (t_rr = 75 ns max) and low forward conduction loss (V_F = 1.7 V @ 1.5 A, 25 °C). Its thermal resistance R_θJA is 80 °C/W, enabling operation up to 150 °C junction temperature under defined PCB copper area conditions.

Designed for high-efficiency switching applications, the device exhibits low leakage (I_R ≤ 5 µA @ 25 °C, rated V_R) and reduced junction capacitance (C_J = 30 pF @ 1 MHz, 4 V), minimizing switching losses and EMI generation in high-frequency power stages.

Key Specifications

Pinout & Package

DO-214AC (SMA) package: molded epoxy case meeting UL 94V-0, matte tin-plated leads compliant with J-STD-002 solderability, cathode indicated by band, weight ≈ 0.060 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STTH1L60 and ES1J, the HS2JA uniquely balances 1.5 A continuous current, 600 V blocking, 75 ns recovery, and DO-214AC surface-mount compatibility - making it optimal for space-constrained, medium-power switching supplies requiring reliable automated assembly.

Availability

HS2JA is available at Aetrix Electronics and suitable for DC-DC converters, switching inverters, lighting ballasts, and freewheeling paths requiring stable component supply, consistent parametric performance across production lots, and full traceability.

Supply support for HS2JA 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 power rectifiers, TVS diodes, and MOSFETs since 1979.

The HS2JA belongs to TSC's HS2x series of high-efficiency surface-mount rectifiers, engineered specifically for high-frequency switching power conversion where fast recovery, low V_F, and robust surge capability are critical.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for HS2JA?

The HS2JA has a specified V_RRM of 600 V, meaning it can reliably block reverse voltages up to this level without breakdown under repetitive conditions. This rating is confirmed in the Absolute Maximum Ratings table on page 2 of the official TSC datasheet (Version J2102), and aligns with its position in the HS2AA–HS2MA family where 'J' denotes the 600 V variant. The HS2JA must not be operated beyond this voltage in design margin calculations.

What is the forward voltage drop (V_F) of HS2JA at rated current?

The HS2JA exhibits a maximum forward voltage of 1.7 V at 1.5 A forward current and 25 °C junction temperature, per the Electrical Specifications table. This value is measured under pulsed conditions (PW = 0.3 ms) to avoid self-heating effects. At elevated temperatures (e.g., 125 °C), V_F decreases slightly due to negative temperature coefficient of silicon PN junctions - a behavior confirmed in Figure 4 (Typical Forward Characteristics) of the HS2JA datasheet.

Is HS2JA suitable for use in automated SMT assembly lines?

Yes, HS2JA is explicitly designed for automated placement: its DO-214AC (SMA) package has low profile and matte tin-plated leads compliant with J-STD-002 solderability standards. It carries moisture sensitivity level 1 (per J-STD-020), eliminating the need for pre-baking prior to reflow. These attributes - documented in the FEATURES and MECHANICAL DATA sections - make HS2JA compatible with high-speed pick-and-place equipment and standard lead-free reflow profiles.

What is the reverse recovery time (t_rr) specification for HS2JA?

The HS2JA has a maximum reverse recovery time of 75 ns, measured under IF = 0.5 A, IR = 1.0 A, and Irr = 0.25 A conditions (per Electrical Specifications table). This parameter is validated using the test circuit shown in Figure 6 of the datasheet. The 75 ns t_rr enables efficient operation in switching power supplies operating up to ~500 kHz, distinguishing HS2JA from general-purpose rectifiers like 1N4007 (t_rr > 2 µs).

Does HS2JA meet RoHS and halogen-free requirements?

Yes, HS2JA is RoHS compliant and halogen-free per IEC 61249-2-21. These environmental qualifications are explicitly stated in the FEATURES section of the official TSC datasheet (Version J2102). The device contains no lead, cadmium, mercury, hexavalent chromium, PBB, or PBDE above threshold limits, and its molding compound is certified halogen-free - critical for compliance in EU, China, and other regulated markets.