Taiwan Semiconductor Corporation SRS1630H

Overview

SRS1630H from Taiwan Semiconductor is a 16A, 30V AEC-Q101-qualified Schottky barrier rectifier in TO-263AB (D2PAK) package, featuring 0.55V forward voltage at 8A/25°C, 150A surge capability, and junction temperature rating up to +150°C. It serves as a freewheeling or reverse-battery-protection diode in automotive DC/DC converters and low-voltage inverters.

For engineers reviewing the SRS1630H datasheet, SRS1630H pinout, SRS1630H application, or SRS1630H equivalent, key selection criteria include its 30V V_RRM, dual-die configuration, AEC-Q101 qualification, moisture sensitivity level 1, and thermal resistance of 2°C/W - all critical for high-reliability automotive power designs.

Technical Context

The SRS1630H integrates two Schottky die in a single TO-263AB (D2PAK) thermally optimized package with matte tin-plated leads. Its guard ring structure provides overvoltage protection, and it meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements.

Designed for high-frequency switching, the device delivers low conduction loss (V_F = 0.55V typ. @ 8A, 25°C) and low leakage (I_R ≤ 500 µA @ 30V, 25°C), enabling efficient operation in 100 kHz–1 MHz DC/DC topologies where thermal management and reverse recovery are critical.

Key Specifications

Pinout & Package

Package: TO-263AB (D2PAK), surface-mount, 3-terminal case with exposed cathode tab for thermal and electrical connection.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-16CTQ030 and MBR1630CT, the SRS1630H uniquely combines AEC-Q101 qualification, +150°C operation, guard ring protection, and MSL Level 1 - making it the only option qualified for next-generation automotive power modules requiring zero rework risk and extended thermal headroom.

Availability

SRS1630H is available at Aetrix Electronics and suitable for automotive DC/DC converters, reverse battery protection circuits, and low-voltage inverters requiring stable component supply across multi-year vehicle production cycles.

Supply support for SRS1630H 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 automotive, industrial, and consumer markets since 1979.

The SRS1630H belongs to TSC's AEC-Q101-qualified Schottky rectifier product line, engineered specifically for high-efficiency, high-reliability power conversion in automotive electrification systems - including 12V/48V architectures and ADAS power supplies.

FAQ

What is the maximum junction temperature rating for the SRS1630H?

The SRS1630H has a maximum junction temperature (T_J) rating of +150°C, verified per AEC-Q101 stress testing. This enables reliable operation in under-hood automotive environments where ambient temperatures exceed 105°C. The device maintains specified electrical performance up to this limit, and its thermal resistance (R_θJC = 2°C/W) supports effective heat dissipation when mounted on adequate copper area. Always refer to the derating curve in the SRS1630H datasheet for continuous current limits at elevated temperatures.

Is the SRS1630H pin-compatible with other devices in the SRS16xxH family?

Yes, all SRS16xxH devices - including SRS1620H, SRS1630H, SRS1640H, and up to SRS16100H - share identical TO-263AB (D2PAK) package dimensions, pinout, and thermal pad layout. This allows direct substitution across voltage grades without PCB redesign. However, forward voltage, leakage current, and thermal behavior differ per V_RRM grade, so electrical validation is required when swapping within the family. The SRS1630H marking code "SRS1630" is laser-etched on the device body.

Does the SRS1630H require special handling during PCB assembly?

No - the SRS1630H is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and does not require dry packing, baking, or humidity-controlled storage before SMT reflow. Standard lead-free reflow profiles (peak 260°C) are fully supported. Its matte tin-plated leads comply with J-STD-002 for solderability, and the UL 94V-0 molding compound ensures flame resistance during reflow and end-use. No special handling beyond standard ESD-safe practices is needed for the SRS1630H.

What is the reverse leakage current specification for the SRS1630H at 100°C?

At T_J = 100°C and rated V_R = 30V, the SRS1630H exhibits a maximum reverse leakage current (I_R) of 15 mA per diode, as specified in the Electrical Specifications table. This value reflects worst-case behavior under high-temperature bias conditions and is critical for evaluating standby power loss in always-on automotive modules. Measured values are typically lower; the 15 mA limit ensures design margin across process and temperature extremes for the SRS1630H.

How does the guard ring in the SRS1630H improve reliability?

The guard ring in the SRS1630H enhances edge termination robustness by distributing electric field stress away from the active junction periphery. This mitigates premature avalanche breakdown during transient overvoltage events - such as ISO 7637-2 load dump pulses - and improves long-term reliability in 12V/24V automotive battery systems. Unlike basic Schottky structures, the guard ring allows the SRS1630H to sustain rated V_RRM with higher margin under dynamic stress, a key factor validated in its AEC-Q101 qualification testing.