Taiwan Semiconductor Corporation SK510C R7G

Overview

SK510C R7G from Taiwan Semiconductor is a 5A, 100V Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, optimized for high-efficiency switching power supplies with low forward voltage (0.85 V at 5 A, 25°C) and high surge capability (120 A IFSM). It features guard ring overvoltage protection, J-STD-020 Level 1 moisture sensitivity, and halogen-free, RoHS-compliant construction.

For engineers reviewing the SK510C R7G datasheet, SK510C R7G pinout, SK510C R7G application, or SK510C R7G equivalent, key selection criteria include its 100 V repetitive peak reverse voltage, 0.3 mA maximum reverse leakage at 25°C, thermal resistance (R_θJL = 13 °C/W), and suitability for compact, high-frequency SMPS designs requiring low conduction loss.

Technical Context

The SK510C R7G implements a single-die Schottky junction with metal–semiconductor contact enabling fast recovery (no minority-carrier storage) and zero reverse recovery time. Its 100 V V_RRM rating targets mid-voltage DC/DC conversion stages where higher blocking than 60 V devices is required without sacrificing VF efficiency.

Thermal performance is defined for PCB mounting on a 16 mm × 16 mm copper pad: R_θJA = 53 °C/W (ambient), R_θJC = 16 °C/W (case), and R_θJL = 13 °C/W (lead), supporting continuous 5 A operation up to +150°C junction temperature when properly heatsinked via leads.

Key Specifications

Pinout & Package

Package: DO-214AB (SMC) - Surface-mount plastic case with matte tin-plated leads, 0.210 g weight, polarity indicated by cathode band, UL 94V-0 rated molding compound.

Key Features

Applications

Equivalent & Alternatives

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

Compared with VS-50WQ10FNTR-M3 and SB5100-E3/54, the SK510C R7G delivers the lowest VF among SMD 100 V/5 A Schottkys while maintaining industry-standard DO-214AB footprint and J-STD-020 Level 1 handling-making it optimal for high-volume, thermally constrained, fully automated power supply manufacturing.

Availability

SK510C R7G is available at Aetrix Electronics and suitable for AC-DC adapters, LED constant-current drivers, and industrial SMPS modules requiring stable component supply, consistent parametric performance, and long-term manufacturability assurance.

Supply support for SK510C 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 since 1979.

The SK5xC series was engineered specifically for high-efficiency, high-reliability switching power conversion in consumer, industrial, and lighting applications-emphasizing low VF, robust surge immunity, and SMT-ready packaging for automated manufacturing.

FAQ

What is the maximum junction temperature rating for SK510C R7G?

The SK510C R7G has a maximum junction temperature (T_J) rating of +150°C, verified per absolute maximum ratings table in the official TSC datasheet Version S2311. This allows continuous 5 A operation in thermally demanding environments such as enclosed LED drivers or industrial power modules when mounted on a 16 mm × 16 mm Cu pad. The SK510C R7G must not exceed this limit to ensure long-term reliability and parametric stability.

Does SK510C R7G support lead-free reflow soldering per JEDEC J-STD-020?

Yes, the SK510C R7G is rated at Moisture Sensitivity Level 1 per J-STD-020, meaning it has unlimited floor life and is qualified for standard lead-free reflow profiles (peak temperature up to 260°C). Its matte tin-plated leads meet J-STD-002 solderability requirements, and the device undergoes JESD201 Class 2 whisker testing-ensuring robust intermetallic formation and joint integrity during automated SMT assembly. The SK510C R7G requires no pre-baking before reflow.

What is the reverse leakage current specification for SK510C R7G at elevated temperature?

At 100 V reverse bias and +125°C junction temperature, the SK510C R7G exhibits ≤5 mA maximum reverse leakage current (I_R), as specified in the Electrical Specifications table of the TSC datasheet. At +25°C, leakage is ≤0.3 mA. This controlled high-temperature leakage ensures stable performance in hot-running applications like enclosed LED drivers or industrial SMPS where ambient temperatures exceed 60°C. The SK510C R7G maintains safe thermal equilibrium under these conditions.

Is SK510C R7G pin-compatible with other SK5xC family members?

Yes, all SK5xC devices-including SK52C through SK520C-share identical DO-214AB (SMC) package dimensions, pinout (anode/cathode), and mechanical footprint. The SK510C R7G uses the same anode–cathode terminal configuration and polarity marking (cathode band) as SK54C, SK56C, and SK520C. This enables direct voltage-rating substitution within the same PCB layout, provided thermal and electrical margins are validated for the new V_RRM and V_F values.

What is the typical forward voltage drop of SK510C R7G at 5 A and 100°C junction temperature?

The SK510C R7G datasheet does not specify V_F at 100°C and 5 A; only the 25°C value (0.85 V max) is guaranteed. However, Figure 4 (Typical Forward Characteristics) shows V_F ≈ 0.78 V at 5 A and 100°C for SK59C–SK510C group. Since the SK510C R7G belongs to that group and shares identical die construction, its typical V_F at 100°C/5 A is approximately 0.78 V-enabling accurate thermal modeling for high-temperature operation scenarios.