Taiwan Semiconductor Corporation SRS20100H

Overview

SRS20100H from Taiwan Semiconductor is a 20A, 100V Schottky barrier rectifier in TO-263AB (D2PAK) package, designed for high-efficiency DC/DC conversion and freewheeling applications in automotive and industrial power supplies. It features 0.92V forward voltage at 10A/25°C, 200A surge capability, AEC-Q101 qualification, and junction temperature rating up to +150°C.

For engineers reviewing the SRS20100H datasheet, SRS20100H pinout, SRS20100H application, or SRS20100H equivalent, key selection criteria include reverse voltage margin, thermal resistance (1.5°C/W), moisture sensitivity level (J-STD-020 Level 1), RoHS/halogen-free compliance, and dual-die configuration for parallel current handling.

Technical Context

The SRS20100H integrates two Schottky diode dies in a single TO-263AB (D2PAK) thermally optimized package, enabling high-current operation with low conduction loss. Its 100V V_RRM and 0.92V V_F at 10A support efficient operation in 48V–60V bus systems and synchronous rectifier auxiliary paths.

Guard ring structure provides overvoltage protection, while JESD201 Class 2 whisker resistance and matte tin-plated terminals ensure long-term solder joint reliability. The device operates across –55°C to +150°C junction range and meets AEC-Q101 stress testing requirements for automotive under-hood use.

Key Specifications

Pinout & Package

Package: TO-263AB (D2PAK), surface-mount, single-row 3-terminal outline with exposed thermal pad (cathode-connected tab). Dimensions per Taiwan Semiconductor Package Outline Drawing Rev. A2103.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-20CPH10-M3 and MUR20100CT, the SRS20100H uniquely combines AEC-Q101 qualification, MSL Level 1, halogen-free construction, and TO-263AB thermal performance-making it the only drop-in solution for new automotive power designs requiring full compliance.

Availability

SRS20100H is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial freewheeling circuits, and reverse battery protection systems requiring stable component supply, long-lifecycle assurance, and AEC-Q101-compliant sourcing.

Supply support for SRS20100H 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 power semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in high-reliability rectifiers, TVS devices, and MOSFETs for automotive and industrial markets.

The SRS20100H belongs to TSC's AEC-Q101-qualified Schottky rectifier family, engineered specifically for high-current, high-temperature power conversion in automotive subsystems and ruggedized industrial equipment.

FAQ

What is the maximum junction temperature rating for the SRS20100H?

The SRS20100H has a maximum junction temperature (T_J) rating of +150°C, validated per AEC-Q101 test conditions. This enables reliable operation in under-hood automotive environments and high-ambient industrial settings without active cooling. The device maintains specified electrical parameters up to this limit, and its thermal resistance (R_θJC = 1.5°C/W) supports effective heat transfer to the PCB or heatsink. Derating curves in the official datasheet define allowable current vs. case temperature.

Is the SRS20100H pin-compatible with other parts in the SRS20xxH series?

Yes, all SRS20xxH devices-including SRS20100H-share identical TO-263AB (D2PAK) packaging, pinout, and thermal pad layout. The anode–cathode–anode terminal arrangement and mechanical dimensions are fully consistent across the series (SRS2020H to SRS20150H). This allows design reuse and voltage-scaling flexibility without PCB revision, provided layout accommodates worst-case thermal and voltage isolation requirements.

Does the SRS20100H have a guard ring structure, and what benefit does it provide?

Yes, the SRS20100H incorporates a guard ring structure in its die design, explicitly cited in the official datasheet features. This structure improves edge termination robustness, enhancing resistance to localized electric field crowding during transient overvoltage events-such as load dump spikes in automotive 12V systems. It directly contributes to higher reliability and longer lifetime under real-world electrical stress compared to non-guarded Schottky rectifiers.

What is the reverse leakage current specification for the SRS20100H at 100°C?

At T_J = 100°C and rated V_R = 100V, the SRS20100H exhibits a maximum reverse leakage current (I_R) of 100 µA per diode, as confirmed in the Electrical Specifications table. This low leakage preserves efficiency in high-temperature standby modes and prevents excessive power dissipation in reverse-biased configurations-critical for reverse battery protection and high-side switch applications.

How is the dual-die configuration implemented in the SRS20100H, and how does it affect thermal performance?

The SRS20100H integrates two independent Schottky diode dies within one TO-263AB package, sharing a common cathode (exposed thermal pad) and separate anode terminals. This architecture enables true 20A current handling with distributed thermal generation. Because both dies conduct simultaneously and share the same thermal path to the case, the overall R_θJC remains 1.5°C/W-identical to a single-die 20A device-while improving current density tolerance and reducing localized heating versus external paralleling.