Taiwan Semiconductor Corporation SK82C R7G

Overview

SK82C R7G from Taiwan Semiconductor is a single-die, 8A, 20V Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, featuring low forward voltage (0.55 V @ 8 A, 25°C), 150 A surge capability, and junction temperature rating up to +125°C. It is used in high-efficiency switching mode power supplies and AC/DC adapters where low conduction loss and fast recovery are critical.

For engineers reviewing the SK82C R7G datasheet, SK82C R7G pinout, SK82C R7G application, or SK82C R7G equivalent, key selection factors include its 20 V repetitive peak reverse voltage, 0.55 V forward voltage at rated current, 150 A non-repetitive surge rating, thermal resistance of 20 °C/W, and RoHS/halogen-free compliance for industrial and consumer power conversion designs.

Technical Context

The SK82C R7G employs a planar Schottky barrier structure with guard ring overvoltage protection, enabling stable operation under transient voltage stress. Its single-die configuration and matte tin-plated leads support automated SMT placement and J-STD-002 solderability.

With a maximum junction temperature of +125°C and storage range from –55°C to +150°C, it supports operation in thermally demanding environments. The device exhibits 10,000 V/µs critical dV/dt rating and 0.5 mA reverse leakage at 25°C - critical for noise-sensitive SMPS feedback paths.

Key Specifications

Pinout & Package

Package: DO-214AB (SMC) - surface-mount, molded plastic case with cathode band polarity marking, UL 94V-0 rated compound, 0.210 g weight.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-8BQ020HM3/86A and SB820, the SK82C R7G delivers the lowest forward voltage (0.55 V typ.) in DO-214AB, offering optimal thermal performance and efficiency in space-constrained, thermally demanding 20 V rectification roles - especially where JEDEC-compliant moisture level 1 and halogen-free compliance are mandatory.

Availability

SK82C R7G is available at Aetrix Electronics and suitable for switching mode power supplies, AC/DC adapters, and LED lighting applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.

Supply support for SK82C R7G 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 diodes, and MOSFETs for industrial and consumer markets.

The SK82C R7G belongs to TSC's SK8xC family of Schottky rectifiers designed specifically for high-efficiency, low-voltage secondary-side rectification in compact AC/DC and DC/DC power converters.

FAQ

What is the maximum junction temperature rating for the SK82C R7G?

The SK82C R7G has a maximum junction temperature (TJ max) rating of +125°C, verified per absolute maximum ratings table in Taiwan Semiconductor's L2102 datasheet. This allows continuous 8 A operation in ambient temperatures up to 75°C when mounted on a standard 1-in² 2 oz copper pad. Exceeding +125°C risks irreversible degradation of the Schottky junction. Always verify thermal design using the published RθJA of 20 °C/W and actual board layout.

Does the SK82C R7G have a guard ring structure, and what is its functional benefit?

Yes, the SK82C R7G incorporates a guard ring for overvoltage protection, explicitly stated in the FEATURES section of the official datasheet. This structure prevents edge breakdown during transient voltage spikes, improving ruggedness in applications exposed to line surges or inductive switching noise. It directly contributes to the device's 10,000 V/µs dV/dt rating and enhances long-term reliability in unregulated or poorly filtered power stages.

Is the SK82C R7G RoHS and halogen-free compliant?

Yes, the SK82C R7G is RoHS compliant and halogen-free per IEC 61249-2-21, as confirmed in the FEATURES section of Taiwan Semiconductor's documentation. The "R7G" suffix denotes green (halogen-free) molding compound and RoHS-compliant plating. This makes SK82C R7G suitable for export to EU, Japan, South Korea, and other regulated markets requiring full substance compliance declarations.

What is the reverse leakage current specification for the SK82C R7G at 100°C?

At TJ = 100°C and rated VR = 20 V, the SK82C R7G exhibits a maximum reverse leakage current (IR) of 15 mA, per the ELECTRICAL SPECIFICATIONS table. This value is significantly higher than the 0.5 mA limit at 25°C, reflecting expected thermal dependence of Schottky leakage. Designers must account for this increase in standby power calculations for high-ambient applications like enclosed LED drivers.

What does the "R7G" suffix indicate in SK82C R7G?

The "R7G" suffix in SK82C R7G identifies Taiwan Semiconductor's green-compliant variant: "R7" denotes RoHS-compliant packaging and processing, and "G" specifies halogen-free molding compound per IEC 61249-2-21. This suffix distinguishes it from legacy non-green versions and confirms compliance with global environmental regulations - a requirement for SK82C R7G in modern consumer and industrial power supply designs.