Taiwan Semiconductor Corporation HS2D

Overview

HS2D from Taiwan Semiconductor is a 200 V, 2 A surface-mount fast recovery rectifier diode in DO-214AA (SMB) package, featuring 50 ns reverse recovery time, 1.0 V forward voltage at 2 A, and 5 µA reverse leakage at 25°C - deployed in AC/DC front-end stages of compact switching power supplies.

For engineers reviewing the HS2D datasheet, HS2D pinout, HS2D application, or HS2D equivalent, key selection criteria include peak repetitive reverse voltage (200 V), surge current capability (50 A), thermal resistance (80 °C/W), junction temperature range (–55 to +150 °C), and RoHS/halogen-free compliance for industrial-grade power conversion designs.

Technical Context

The HS2D is a single-die, glass-passivated silicon PN junction rectifier optimized for high-efficiency SMPS input stages. Its 50 ns trr and low VF enable reduced switching losses in 50–500 kHz converters, while the DO-214AA package supports automated placement and meets UL 94V-0 flammability requirements.

Thermal performance is defined by R_θJA = 80 °C/W under standard PCB conditions, and its 150 °C maximum junction temperature allows operation in thermally constrained environments without forced cooling - critical for sealed adapter and LED driver enclosures.

Key Specifications

Pinout & Package

Package: DO-214AA (SMB), surface-mount, cathode-indicated by band, matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 2 whisker resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MUR220 and VS-2EY20, the HS2D offers balanced trade-offs: matching VS-2EY20's surge robustness while delivering lower V_F than typical 200 V alternatives - ideal for cost-sensitive, thermally constrained 2 A adapter designs where 50 ns recovery suffices.

Availability

HS2D is available at Aetrix Electronics and suitable for switching mode power supplies, LED lighting drivers, and industrial DC power modules requiring stable component supply, consistent parametric performance, and long-term manufacturing continuity.

Supply support for HS2D 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 for industrial and consumer markets.

The HS2D belongs to TSC's HS2x fast recovery rectifier family, engineered specifically for high-efficiency, surface-mount AC/DC conversion in space-constrained power supplies - emphasizing low V_F, controlled t_rr, and robust surge handling.

FAQ

What is the maximum junction temperature rating for HS2D?

The HS2D has a maximum junction temperature (T_JMAX) of +150 °C, allowing reliable operation in enclosed power supplies and LED drivers without active cooling. This rating is validated per JEDEC standards and applies across the full –55 to +150 °C storage temperature range. The HS2D maintains stable electrical characteristics up to this limit when thermal design accounts for its 80 °C/W junction-to-ambient resistance.

Does HS2D support automated SMT placement?

Yes, the HS2D uses the DO-214AA (SMB) package with matte tin-plated leads that meet J-STD-002 solderability requirements, making it fully compatible with high-speed pick-and-place equipment. Its standardized footprint and cathode band marking ensure accurate orientation during automated assembly - a key feature emphasized in TSC's L2102 datasheet revision for the HS2x series.

What is the reverse recovery time (t_rr) of HS2D and how is it measured?

The HS2D has a reverse recovery time (t_rr) of 50 ns, measured under conditions of I_F = 0.5 A, I_R = 1.0 A, and I_rr = 0.25 A per the datasheet test circuit in Figure 6. This value reflects its fast-switching capability in high-frequency SMPS designs and is consistent across all HS2x variants rated ≤400 V, including HS2D.

Is HS2D RoHS and halogen-free compliant?

Yes, the HS2D is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the "Features" section of the L2102 datasheet. The molding compound meets UL 94V-0 flammability rating, and the device carries no restricted substances above threshold limits - supporting compliance for CE, UKCA, and other regional regulatory certifications.

Can HS2D be used as a direct replacement for HS2B in a 100 V design?

No - HS2D is rated for 200 V V_RRM, while HS2B is rated for 100 V. Substituting HS2D in a 100 V design is electrically safe but may incur unnecessary cost and board space; however, it does not provide functional improvement unless higher voltage margin is explicitly required. The HS2D pinout and package match HS2B, but voltage rating must align with system stress analysis.