Taiwan Semiconductor Corporation HS1GH

Overview

HS1GH from Taiwan Semiconductor is a 1 A, 400 V repetitive peak reverse voltage (V_RRM) surface-mount fast recovery rectifier in DO-214AC (SMA) package, featuring 1.3 V max forward voltage at 1 A and 50 ns reverse recovery time, used in DC-DC converters and snubber circuits.

For engineers reviewing the HS1GH datasheet, HS1GH pinout, HS1GH application, or HS1GH equivalent, key selection criteria include its AEC-Q101 qualification, glass-passivated junction, moisture sensitivity level 1 rating, 15 °C/W junction-to-lead thermal resistance, and suitability for automotive-grade switching-mode power supplies requiring reliable freewheeling and reverse voltage blocking up to 400 V.

Technical Context

The HS1GH operates as a single-die, unidirectional silicon rectifier with fast recovery characteristics optimized for high-frequency switching applications. Its 50 ns trr and low 1.3 V VF at 1 A support efficiency in compact DC-DC topologies where conduction and switching losses must be balanced.

Thermally, it delivers R_θJL = 15 °C/W on standard PCB mounting (5 mm × 5 mm Cu pad), enabling stable operation up to T_J = 150 °C. The device's glass-passivated junction and JESD201 Class 2 whisker resistance ensure long-term reliability under automotive thermal cycling and humidity stress.

Key Specifications

Pinout & Package

Package: DO-214AC (SMA), molded plastic case with matte tin-plated leads, 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 STTH1L04W and MUR1040, the HS1GH offers superior thermal coupling (R_θJL = 15 °C/W) and AEC-Q101 qualification-making it the preferred choice for production automotive and industrial SMT power supplies demanding reliability, repeatability, and manufacturability.

Availability

HS1GH is available at Aetrix Electronics and suitable for DC–DC converters, snubber circuits, lighting applications, and freewheeling applications requiring stable component supply, automotive-grade qualification, and consistent DO-214AC (SMA) packaging.

Supply support for HS1GH 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 global automotive, industrial, and consumer markets since 1979.

The HS1GH belongs to TSC's HS1xH fast recovery rectifier family, engineered specifically for high-efficiency, high-reliability surface-mount power conversion in automotive and industrial environments where AEC-Q101 compliance and thermal robustness are mandatory.

FAQ

What is the maximum repetitive peak reverse voltage (V_RRM) for HS1GH?

The HS1GH has a maximum repetitive peak reverse voltage (V_RRM) of 400 V, as specified in the Absolute Maximum Ratings table of the official Taiwan Semiconductor datasheet (Version B2401). This rating defines the highest reverse voltage the device can block repeatedly without breakdown under normal operating conditions and is validated across the full temperature range of −55°C to +150°C. Exceeding 400 V may cause irreversible avalanche failure. The HS1GH is part of the HS1AH–HS1MH series, where 'G' explicitly denotes the 400 V grade.

Is HS1GH qualified for automotive applications?

Yes, the HS1GH is AEC-Q101 qualified, as confirmed in the FEATURES section of the Taiwan Semiconductor datasheet. This qualification covers stress tests including temperature cycling, high-temperature reverse bias, humidity bias, and mechanical shock-ensuring reliability in automotive under-hood and powertrain environments. The HS1GH's glass-passivated junction, moisture sensitivity level 1, and JESD201 Class 2 whisker resistance further support its use in automotive-grade designs where long-term field reliability is critical.

What is the forward voltage (V_F) of HS1GH at 1 A and 25°C?

The forward voltage (V_F) of HS1GH is specified as a maximum of 1.3 V at 1 A forward current and 25°C junction temperature, per the ELECTRICAL SPECIFICATIONS table. This value is measured under pulse conditions (PW = 0.3 ms) and reflects worst-case conduction loss. At elevated temperatures (e.g., 125°C), V_F decreases slightly due to semiconductor physics, but system design should conservatively use 1.3 V for thermal and efficiency calculations in the HS1GH datasheet.

What package type does HS1GH use, and what are its key mechanical features?

The HS1GH uses the DO-214AC (SMA) surface-mount package, as confirmed in MECHANICAL DATA and ORDERING INFORMATION sections. Key features include a UL 94V-0 compliant molding compound, matte tin-plated solderable leads meeting J-STD-002, cathode polarity indicated by a visible band, and a nominal weight of 0.060 g. The package outline conforms to JEDEC DO-214, Variation AC, with standardized pad layout dimensions provided for reliable reflow soldering in high-volume SMT lines.

What is the reverse recovery time (t_rr) of HS1GH, and how is it tested?

The reverse recovery time (t_rr) of HS1GH is rated at a maximum of 50 ns, measured under the condition of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A, as stated in the ELECTRICAL SPECIFICATIONS table. This test method follows industry-standard fast recovery characterization using a defined current-switching waveform and is validated at 25°C. The 50 ns t_rr enables efficient operation in switching power supplies operating up to ~2 MHz, reducing switching losses and associated EMI compared to slower rectifiers.