Taiwan Semiconductor Corporation SK84C V7G

Overview

SK84C V7G from Taiwan Semiconductor is an 8A, 40V Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, optimized for high-efficiency switching power supplies with low forward voltage (0.55 V at 8 A, 25°C), high surge capability (150 A), and junction temperature up to +125°C. It serves as a primary output rectifier in AC/DC adapters and DC/DC converters.

For engineers reviewing the SK84C V7G datasheet, SK84C V7G pinout, SK84C V7G application, or SK84C V7G equivalent, key selection criteria include repetitive peak reverse voltage (40 V), forward voltage drop at rated current, thermal resistance (20 °C/W), surge current rating, and RoHS/halogen-free compliance for industrial and consumer power designs.

Technical Context

The SK84C V7G implements a single-die Schottky junction structure with guard ring overvoltage protection, enabling fast recovery (no reverse recovery charge) and stable operation under repetitive surge conditions. Its DO-214AB (SMC) package supports automated placement and meets J-STD-020 moisture sensitivity level 1.

Electrical behavior is characterized by low conduction loss (VF = 0.55 V typ. @ 8 A, 25°C), low leakage (IR ≤ 0.5 mA @ 40 V, 25°C), and high dV/dt immunity (10,000 V/µs), making it suitable for high-frequency SMPS topologies where efficiency and thermal management are critical.

Key Specifications

Pinout & Package

DO-214AB (SMC) surface-mount package with cathode-indicating band; two-terminal device (anode and cathode) in gull-wing lead configuration. Matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-8EWH04FN-M3 and SB840-E3/54, the SK84C V7G offers the lowest VF among DO-214AB-packaged 40 V/8 A Schottkys, delivering optimal efficiency in space-constrained adapters and LED drivers without requiring thermal interface materials or layout changes.

Availability

SK84C V7G is available at Aetrix Electronics and suitable for AC/DC adapters, LED drivers, and industrial SMPS requiring stable component supply, long-term manufacturing continuity, and RoHS-compliant sourcing.

Supply support for SK84C V7G 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–SK810C series was designed specifically for high-efficiency, cost-sensitive switching power supplies targeting consumer, industrial, and lighting applications where low VF, robust surge handling, and SMT compatibility are essential.

FAQ

What is the maximum junction temperature rating for SK84C V7G?

The SK84C V7G has a maximum junction temperature (T_J) of +125°C. This rating applies across its full operating current range and enables reliable operation in sealed enclosures or high-ambient environments when used within its thermal limits. The device's R_θJA of 20 °C/W allows direct calculation of allowable ambient temperature based on power dissipation. Always verify actual T_J using measured case temperature and thermal modeling in final SK84C V7G implementations.

Does SK84C V7G have a specified reverse recovery time (t_rr)?

No - the SK84C V7G is a Schottky barrier rectifier and exhibits no minority-carrier storage, so it has no defined reverse recovery time (t_rr). Instead, it features instantaneous turn-off with only junction capacitance-related switching loss. This eliminates reverse recovery spikes and EMI concerns common with PN junction rectifiers. All relevant dynamic behavior for SK84C V7G is captured in its dV/dt rating (10,000 V/µs) and capacitance curves.

Is SK84C V7G compatible with lead-free reflow soldering profiles?

Yes - SK84C V7G uses matte tin-plated leads compliant with J-STD-002 and is qualified for standard lead-free reflow profiles (peak temperature up to 260°C, 10-second dwell). Its moisture sensitivity level is rated at Level 1 per J-STD-020, meaning it can be stored indefinitely in dry packaging and requires no pre-bake before SMT assembly. This makes SK84C V7G fully compatible with modern high-volume lead-free manufacturing lines.

What does the "V7G" suffix indicate in SK84C V7G?

The "V7G" suffix in SK84C V7G denotes Taiwan Semiconductor's internal revision and environmental coding: "V7" indicates version level L2102 per the official datasheet revision history, and "G" signifies halogen-free molding compound compliant with IEC 61249-2-21. This suffix confirms full RoHS and green material compliance. The core electrical and mechanical specifications remain identical to SK84C across all V7G-marked units.

Can SK84C V7G replace SK84C without design changes?

Yes - SK84C V7G is a direct form-fit-function replacement for SK84C, sharing identical DO-214AB (SMC) package dimensions, pinout, electrical ratings (VRRM = 40 V, IF = 8 A, VF = 0.55 V), and thermal characteristics. The "V7G" variant adds halogen-free and enhanced RoHS compliance but requires no PCB layout, thermal, or schematic modifications. All design documentation, test fixtures, and qualification data for SK84C apply unchanged to SK84C V7G.