Taiwan Semiconductor Corporation SR3090PTH

Overview

SR3090PTH from Taiwan Semiconductor is a 30A, 90V AEC-Q101-qualified Schottky barrier rectifier in TO-247AD (TO-3P) package, featuring 0.90V forward voltage at 15A/25°C, 300A surge capability, and dual-die construction for high-efficiency DC/DC conversion in automotive and industrial power supplies.

For engineers reviewing the SR3090PTH datasheet, SR3090PTH pinout, SR3090PTH application, or SR3090PTH equivalent, key selection criteria include repetitive peak reverse voltage (90 V), junction-to-case thermal resistance (1.5 °C/W), TJ max rating (150 °C), and AEC-Q101 qualification status for under-hood reliability.

Technical Context

This device implements a dual-die Schottky architecture with guard ring overvoltage protection and matte tin-plated leads compliant with J-STD-002 solderability. Its 1.5 °C/W R_θJC enables high-power dissipation in constrained thermal environments.

Rated for continuous 30A forward current and 300A non-repetitive surge (8.3ms half-sine), SR3090PTH operates across –55°C to +150°C junction temperature range and exhibits 500 µA max reverse leakage at rated V_RRM and 25°C.

Key Specifications

Pinout & Package

Package: TO-247AD (TO-3P) - Isolated case, 3-terminal through-hole package with center anode/cathode configuration and mechanical mounting hole; UL 94V-0 molding compound, 6.10 g mass, 1.13 N·m max mounting torque.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-30CPH09-M3 and SB3090, SR3090PTH uniquely combines AEC-Q101 qualification, TO-247AD thermal performance (1.5 °C/W), and 90 V/30 A rating-making it optimal for automotive and high-reliability industrial rectification where both qualification and thermal headroom are mandatory.

Availability

SR3090PTH is available at Aetrix Electronics and suitable for automotive DC/DC converters, industrial SMPS front-end designs, and consumer TV power supplies requiring stable component supply with full AEC-Q101 traceability and TO-247AD thermal performance.

Supply support for SR3090PTH 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 for automotive and industrial markets.

The SR30xPT series was developed to deliver AEC-Q101-qualified Schottky rectifiers with optimized V_F/I_R trade-offs and robust thermal packaging for next-generation 48 V automotive systems and high-density power supplies.

FAQ

What is the maximum junction temperature rating for SR3090PTH?

The SR3090PTH has a maximum junction temperature (T_J) rating of +150 °C, validated per AEC-Q101 stress testing protocols. This allows reliable operation in under-hood automotive environments and high-ambient industrial settings where thermal management is constrained. The SR3090PTH maintains full 30 A current capability up to T_C = 85 °C with appropriate heatsinking.

Is SR3090PTH pin-compatible with other parts in the SR30xPT family?

Yes, all SR30xPT and SR30xPTH variants-including SR3090PTH-share identical TO-247AD (TO-3P) mechanical outline, pin assignment (anode, cathode, isolated tab), and mounting dimensions. Voltage ratings differ across the family (20 V to 150 V), but PCB layout and thermal interface design remain unchanged when upgrading or downgrading within the series.

Does SR3090PTH require a heatsink in typical 30 A operation?

Yes, SR3090PTH requires a heatsink for continuous 30 A operation. With 1.5 °C/W R_θJC and ~27 W power dissipation (0.90 V × 30 A), even modest ambient temperatures necessitate heatsink thermal resistance ≤ 1.0 °C/W to maintain T_J < 150 °C. The isolated TO-247AD tab enables direct bolt-down to chassis or dedicated heatsink.

What does the "H" suffix in SR3090PTH signify?

The "H" suffix in SR3090PTH indicates full AEC-Q101 qualification per Rev H2103 specification. This includes passing temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD) tests required for automotive-grade discrete components. Non-H parts (e.g., SR3090PT) lack this qualification and are intended for commercial/industrial use only.

How does SR3090PTH's reverse leakage compare to lower-voltage variants in the same family?

At rated V_RRM and 25 °C, SR3090PTH specifies 500 µA max reverse leakage-identical to SR30100PTH and SR30150PTH, but half the 1000 µA limit of SR3020PT–SR3060PT variants. This reflects process optimization for higher-voltage Schottky structures, enabling lower standby losses in 48 V and 60 V systems where leakage directly impacts no-load efficiency.