Taiwan Semiconductor Corporation SK82C V7G

Overview

SK82C from Taiwan Semiconductor is an 8A, 20V Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, designed for high-efficiency DC/DC conversion in compact power supplies. It features low forward voltage (0.55 V at 8 A, 25°C), 150 A surge capability, 10,000 V/µs dV/dt rating, and operates up to 125°C junction temperature.

For engineers reviewing the SK82C datasheet, SK82C pinout, SK82C application, or SK82C equivalent, key selection considerations include its 20 V repetitive peak reverse voltage, single-die configuration, moisture sensitivity level 1 compliance, RoHS/halogen-free status, and suitability for space-constrained SMPS and adapter designs requiring low conduction loss.

Technical Context

The SK82C employs a planar Schottky barrier structure with guard ring overvoltage protection, enabling robust operation under transient conditions. Its thermal resistance (R_θJA = 20°C/W) and 125°C maximum junction temperature support continuous 8 A forward current in standard PCB layouts without forced airflow.

Designed for automated SMT assembly, it uses matte tin-plated leads compliant with J-STD-002 and meets JESD201 Class 2 whisker resistance. Polarity is marked by a cathode band on the DO-214AB body, and the molding compound satisfies UL 94V-0 flammability requirements.

Key Specifications

Pinout & Package

Package: DO-214AB (SMC), surface-mount, single-anode/single-cathode configuration. Cathode indicated by molded band on case body. Weight ≈ 0.210 g.

Key Features

Applications

Equivalent & Alternatives

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

Compared with SS82P and SB820, the SK82C offers the lowest forward voltage among the three at 0.55 V, balanced thermal performance (20°C/W), and explicit guard ring protection-making it optimal for cost-sensitive, high-reliability 24 V adapter and lighting applications where transient immunity is critical.

Availability

SK82C is available at Aetrix Electronics and suitable for switching mode power supplies, AC-DC adapters, LED lighting drivers, and DC/DC converters requiring stable component supply, consistent parametric performance, and long-term production continuity.

Supply support for SK82C 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 since 1979.

The SK82C belongs to TSC's SK8xC Schottky rectifier family, engineered specifically for high-efficiency, high-reliability secondary-side rectification in compact, thermally constrained power supplies targeting consumer and industrial markets.

FAQ

What is the maximum junction temperature rating for the SK82C?

The SK82C has a maximum junction temperature (T_J) rating of 125°C, as specified in the Absolute Maximum Ratings table. This value applies under continuous DC forward current conditions and must be maintained using appropriate PCB copper area and ambient thermal management. Exceeding 125°C risks irreversible degradation of the Schottky junction integrity and long-term reliability of the SK82C.

Does the SK82C have a guard ring structure, and what does it provide?

Yes, the SK82C incorporates a guard ring structure explicitly stated in its FEATURES section. This design enhances overvoltage protection by controlling electric field distribution at the die edge, improving ruggedness against transient voltage spikes and reducing the risk of premature breakdown during line surges or inductive switching events-critical for robust operation of the SK82C in real-world power supply environments.

Is the SK82C suitable for automated SMT placement, and what standards does it meet?

Yes, the SK82C is optimized for automated surface-mount placement. It meets J-STD-002 for solderability, JESD201 Class 2 for tin whisker resistance, and has Moisture Sensitivity Level 1 per J-STD-020-meaning it can be stored indefinitely at dry-pack conditions and placed directly into reflow without pre-baking. These qualifications ensure high first-pass yield and process stability for the SK82C in high-volume manufacturing.

What is the forward voltage of the SK82C at 8 A and 25°C, and how is it measured?

The forward voltage (V_F) of the SK82C is 0.55 V maximum at I_F = 8 A and T_J = 25°C, measured under pulse test conditions with pulse width = 0.3 ms. This low V_F directly reduces conduction losses in the SK82C, contributing to higher overall power conversion efficiency and lower thermal load compared to higher-V_F alternatives.

How does the SK82C differ from the SK83C in terms of voltage rating and application scope?

The SK82C is rated for 20 V repetitive peak reverse voltage (V_RRM), while the SK83C is rated for 30 V. This makes the SK82C ideal for 24 V nominal input systems (e.g., USB-C PD secondary, 24 V LED drivers), whereas the SK83C targets 36 V or higher rails. Both share identical package, current rating, and thermal specs-but selecting SK82C over SK83C in 20 V–24 V applications yields marginally lower V_F and better efficiency for the SK82C.