Taiwan Semiconductor Corporation SRS20150HMNG

Overview

SRS20150HMNG from Taiwan Semiconductor is a 20A, 150V Schottky barrier rectifier in TO-263AB (D2PAK) package, designed for high-efficiency DC/DC conversion and SMPS secondary-side rectification. It features 1.02V forward voltage at 10A/25°C, 200A surge capability, 1.5°C/W junction-to-case thermal resistance, and operates up to 150°C junction temperature.

For engineers reviewing the SRS20150HMNG datasheet, SRS20150HMNG pinout, SRS20150HMNG application, or SRS20150HMNG equivalent, key selection factors include its 150V reverse voltage rating, low VF at high current, dual-die construction, moisture sensitivity level 1 compliance, and suitability for high-density power supply layouts requiring minimal thermal derating.

Technical Context

This Schottky rectifier uses dual-die configuration in a single TO-263AB package to deliver 20A average forward current with 200A non-repetitive surge tolerance. Its 150V VRRM rating targets mid-to-high voltage DC/DC outputs where silicon diodes would incur excessive conduction loss.

The device achieves thermal performance via low R_θJC of 1.5°C/W and supports operation up to +150°C junction temperature, enabling compact heatsink designs in space-constrained adapters and server PSUs without forced airflow.

Key Specifications

Pinout & Package

Package: TO-263AB (D2PAK), surface-mount, 3-terminal configuration 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-20CPH15-M3/45 and MBR20150CT, the SRS20150HMNG offers superior thermal efficiency (1.5°C/W), lower leakage (100µA), and native SMT compatibility-making it optimal for high-power-density, automated production of modern AC/DC adapters and telecom supplies.

Availability

SRS20150HMNG is available at Aetrix Electronics and suitable for server DC/DC VRMs, industrial 48V adapters, and telecom power supplies requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for SRS20150HMNG 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 SRS20xx series was developed to address high-current, medium-voltage Schottky rectification needs in next-generation switched-mode power supplies-emphasizing thermal robustness, SMT manufacturability, and consistency across voltage grades from 20V to 150V.

FAQ

What is the maximum junction temperature rating for SRS20150HMNG?

The SRS20150HMNG has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official TSC datasheet revision L2103. This allows sustained operation in high-ambient environments such as enclosed server power supplies or industrial enclosures without thermal throttling. The SRS20150HMNG maintains specified electrical parameters up to this limit when thermal design ensures case temperature remains within derated IF curves.

Does SRS20150HMNG have a common-cathode or common-anode configuration?

The SRS20150HMNG uses a dual-die, common-cathode configuration in TO-263AB package: both anodes are electrically isolated, and the exposed metal tab serves as the shared cathode terminal. This configuration is confirmed in the "MECHANICAL DATA" and "KEY PARAMETERS" sections of the TSC datasheet, enabling flexible use in center-tapped transformer designs or dual-output supplies. The SRS20150HMNG does not support common-anode operation.

Is SRS20150HMNG suitable for use in automotive applications?

The SRS20150HMNG is not qualified to AEC-Q101 or automotive-grade reliability standards, and TSC documentation explicitly states these products are "not designed for use in medical, life-saving, or life-sustaining applications." While its 150°C TJ rating may appear suitable, the SRS20150HMNG lacks automotive-specific qualification testing, PPAP documentation, and guaranteed lot traceability required for automotive power systems. Use in automotive contexts is not recommended.

What is the moisture sensitivity level (MSL) of SRS20150HMNG and how does it affect assembly?

The SRS20150HMNG has a moisture sensitivity level (MSL) of Level 1 per J-STD-020, meaning it can be stored indefinitely at ≤30°C/60% RH without baking prior to reflow soldering. This eliminates pre-conditioning steps in SMT lines, reduces floor life concerns, and supports standard reflow profiles-including lead-free peak temperatures up to 260°C. The SRS20150HMNG's MSL Level 1 status is documented in the "FEATURES" section of the TSC datasheet.

How does the forward voltage of SRS20150HMNG compare to lower-voltage variants in the same family?

The SRS20150HMNG exhibits a typical forward voltage (V_F) of 1.02V at 10A/25°C-higher than lower-voltage variants like SRS2040 (0.55V) due to increased barrier height needed for 150V V_RRM. This trade-off is inherent to Schottky physics: higher blocking voltage requires higher work-function metals or modified epitaxy, raising V_F. The SRS20150HMNG's V_F remains competitive within its 150V class, matching industry benchmarks for similarly rated devices.