Taiwan Semiconductor Corporation SR1630

Overview

SR1630 from Taiwan Semiconductor is a 16A, 30V AEC-Q101-qualified Schottky barrier rectifier in TO-220AB package, featuring 0.55V forward voltage at 8A/25°C, 170A surge current capability, and guard ring overvoltage protection-used in automotive-grade DC-DC converters and industrial SMPS.

For engineers reviewing the SR1630 datasheet, SR1630 pinout, SR1630 application, or SR1630 equivalent, key selection criteria include repetitive peak reverse voltage (30 V), junction-to-case thermal resistance (2.5 °C/W), TJ max rating (150 °C), and AEC-Q101 qualification status for under-hood power conversion designs.

Technical Context

The SR1630 employs dual-die Schottky construction with guard ring termination to sustain high dv/dt (10,000 V/μs) and suppress avalanche-induced failure. Its low VF enables high-efficiency operation in continuous conduction mode (CCM) topologies.

Thermal performance is defined by R_θJC = 2.5 °C/W and maximum junction temperature of +150 °C, supporting reliable operation in thermally constrained environments such as enclosed automotive power modules and compact AC-DC adapters.

Key Specifications

Pinout & Package

Package: TO-220AB - Three-terminal through-hole package with isolated tab (cathode-connected), matte tin-plated leads compliant with J-STD-002 solderability, UL 94V-0 molding compound, and 0.56 N·m maximum mounting torque.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-16CTH03-M3 and MUR1620CT, the SR1630 uniquely combines AEC-Q101 qualification, 0.55 V forward voltage, and 2.5 °C/W thermal resistance-making it the only option qualified for automotive 12 V/24 V DC-DC converters requiring both reliability and efficiency.

Availability

SR1630 is available at Aetrix Electronics and suitable for automotive power supplies, industrial SMPS, and AC-DC adapters requiring stable component supply, AEC-Q101 compliance, and high thermal reliability.

Supply support for SR1630 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 devices, and MOSFETs since 1979.

The SR16xx series was developed specifically for high-reliability automotive and industrial power conversion, emphasizing low VF, AEC-Q101 qualification, and robust thermal performance in TO-220AB packaging.

FAQ

What is the maximum junction temperature rating for the SR1630?

The SR1630 has a maximum junction temperature (T_J) rating of +150 °C, verified per AEC-Q101 stress testing. This allows the SR1630 to operate continuously at full 16 A forward current in ambient temperatures up to 105 °C when mounted on an appropriate heatsink with R_θJA ≤ 4.5 °C/W. The SR1630's extended TJ rating distinguishes it from standard 125 °C Schottky rectifiers used in consumer applications.

Is the SR1630 pin-compatible with other parts in the SR16xx family?

Yes, all SR16xx parts-including SR1620, SR1630, SR1640, up to SR16150-share identical TO-220AB mechanical footprint, pinout, and terminal assignment. The SR1630 uses the same Anode–Cathode–Tab configuration and mounting torque specification (0.56 N·m) as the rest of the family, enabling voltage-scaling design reuse without PCB revision.

Does the SR1630 have AEC-Q101 qualification, and what does that cover?

Yes, the SR1630 is AEC-Q101 qualified when ordered with the "H" suffix (e.g., SR1630H). This qualification covers stress tests including HTGB, HTRB, TST, and ESD per AEC-Q101 Rev D, validating suitability for automotive power electronics. The SR1630's guard ring structure and 150 °C TJ rating are integral to meeting these requirements.

What is the forward voltage of the SR1630 under typical operating conditions?

The SR1630 exhibits a typical forward voltage (V_F) of 0.55 V at 8 A and 25 °C junction temperature, measured per pulse test (PW = 0.3 ms). At 16 A and 100 °C, V_F rises to approximately 0.62 V. This low V_F directly reduces conduction losses in high-current DC-DC outputs, making the SR1630 especially effective in efficiency-critical automotive and server power designs.

How does the SR1630's thermal resistance compare to industry-standard alternatives?

The SR1630 specifies a junction-to-case thermal resistance (R_θJC) of 2.5 °C/W, measured per JEDEC JESD51-14. This is 0.5 °C/W lower than typical industry-standard 30 V Schottky rectifiers like the Vishay VS-16CTH03-M3 (3.0 °C/W), enabling more efficient heat transfer to external heatsinks and supporting higher sustained current in space-constrained layouts.