Taiwan Semiconductor Corporation HS2F R5G

Overview

HS2F R5G from Taiwan Semiconductor is a 2 A, 300 V high-efficiency surface-mount silicon rectifier diode in DO-214AA (SMB) package, featuring 1.0 V typical forward voltage at 2 A and 50 ns reverse recovery time, used in SMPS primary-side rectification and AC/DC adapters.

For engineers reviewing the HS2F R5G datasheet, HS2F R5G pinout, HS2F R5G application, or HS2F R5G equivalent, key selection criteria include repetitive peak reverse voltage (300 V), forward current rating (2 A), thermal resistance (80 °C/W), junction capacitance (50 pF), and RoHS/halogen-free compliance for industrial power conversion designs.

Technical Context

This device is a single-die, glass-passivated, fast-recovery rectifier optimized for high-frequency switching applications. Its 50 ns trr and low VF enable reduced conduction and switching losses in 50–500 kHz SMPS topologies.

The DO-214AA (SMB) package supports automated placement and provides 80 °C/W junction-to-ambient thermal resistance. Cathode band polarity marking and matte tin-plated leads ensure reliable soldering per J-STD-002 and whisker resistance per JESD 201 Class 2.

Key Specifications

Pinout & Package

DO-214AA (SMB) surface-mount package with cathode-indicating band; molded UL 94V-0 compound, matte tin-plated leads, 0.090 g weight.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-efficiency rectifier applications.

Compared with STTH2R06 and SS24, HS2F R5G delivers optimal balance of 300 V blocking, 1.0 V VF, and 50 ns trr for cost-sensitive, space-constrained 20–60 W SMPS-enabling smaller magnetics and passive components without sacrificing reliability or thermal margin.

Availability

HS2F R5G is available at Aetrix Electronics and suitable for AC/DC adapters, LED drivers, and industrial SMPS requiring stable component supply, consistent parametric performance, and RoHS-compliant manufacturing.

Supply support for HS2F R5G 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 power, automotive, and industrial markets since 1979.

The HS2x series is part of TSC's high-efficiency rectifier product line, engineered specifically for high-frequency switching power supplies where low VF, fast trr, and robust thermal performance are critical to system-level efficiency and reliability.

FAQ

What is the maximum repetitive peak reverse voltage (VRRM) for HS2F R5G?

The HS2F R5G has a VRRM rating of 300 V, verified per Taiwan Semiconductor's L2102 datasheet. This value defines the highest instantaneous reverse voltage the device can block repeatedly without breakdown. It is critical for ensuring safe operation in 230 VAC-input SMPS designs where reflected transients may exceed 250 V. The HS2F R5G maintains this rating across its full operating temperature range of –55°C to +150°C.

Does HS2F R5G support automated PCB assembly?

Yes, HS2F R5G is designed for automated placement using standard pick-and-place equipment. Its DO-214AA (SMB) package conforms to IPC-7351B footprint standards, and matte tin-plated leads meet J-STD-002 solderability requirements. The 0.090 g weight and symmetrical lead geometry ensure high placement yield and reflow consistency in high-volume manufacturing of power adapters and LED drivers.

What is the typical forward voltage drop of HS2F R5G at rated current?

The HS2F R5G exhibits a typical forward voltage (VF) of 1.0 V at IF = 2 A and TJ = 25°C, as specified in the Electrical Specifications table of the L2102 datasheet. This low VF directly reduces conduction losses-by ~0.2 W compared to 1.2 V alternatives-making it especially valuable in thermally constrained 24–48 W adapter designs where efficiency and thermal management are tightly coupled.

Is HS2F R5G compliant with environmental regulations?

Yes, HS2F R5G is RoHS compliant and halogen-free per IEC 61249-2-21. The molding compound meets UL 94V-0 flammability rating, and the device passes JESD 201 Class 2 whisker testing. These certifications confirm suitability for export to EU, China, and other regulated markets, and support compliance in end products such as medical-grade power supplies and industrial control systems where material declarations are mandatory.

How does the thermal resistance of HS2F R5G affect PCB layout?

With a junction-to-ambient thermal resistance (RθJA) of 80 °C/W, HS2F R5G requires careful copper area allocation on the PCB to maintain TJ ≤ 150°C at 2 A. A minimum 100 mm² of 1 oz copper connected to both leads-without thermal relief-is recommended. Adding two thermal vias per pad further reduces RθJA by ~15 °C/W. This thermal behavior is validated in the Forward Current Derating Curve (Fig.1) of the L2102 datasheet.