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Taiwan Semiconductor Corporation SK85C V7G
- Part No.:
- SK85C V7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SK85C V7G.pdf
- Description:
- DIODE SCHOTTKY 50V 8A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,222
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Product details
Overview
SK85C V7G from Taiwan Semiconductor is an 8A, 50V Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, featuring 0.75V forward voltage at 8A/25°C, 150A surge capability, and 10,000 V/µs dV/dt rating. It serves as a high-efficiency output rectifier in DC-DC converters and offline SMPS.
For engineers reviewing the SK85C V7G datasheet, SK85C V7G pinout, SK85C V7G application, or SK85C V7G equivalent, key selection criteria include its 50V VRRM rating, thermal resistance of 20°C/W, junction temperature range up to +150°C, and moisture sensitivity level 1 compliance.
Technical Context
The SK85C V7G implements a single-die Schottky junction optimized for low conduction loss in high-frequency switching topologies. Its guard ring structure enhances ruggedness against transient overvoltage events, while the matte tin-plated leads ensure reliable solderability per J-STD-002.
Designed for operation at junction temperatures up to +150°C, it maintains reverse leakage ≤10 mA at rated VR and 100°C, with typical junction capacitance measured at 1.0 MHz under 50 mVp-p signal conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 50 V - Maximum repetitive reverse voltage the device blocks without breakdown |
| IF | 8 A - Continuous average forward current rating at case temperature ≤75°C |
| VF @ 8A, 25°C | 0.75 V - Forward voltage drop determining conduction loss in power stage |
| IFSM | 150 A - Non-repetitive surge current handling for line transients or startup |
| RθJA | 20 °C/W - Thermal resistance from junction to ambient, defining heatsinking requirements |
| TJ max | +150 °C - Maximum allowable junction temperature for reliable long-term operation |
| dV/dt | 10,000 V/µs - Critical rate of rise of off-state voltage before unintended turn-on |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode indicated by band, weight ≈0.210 g, UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., transformer secondary center-tap or switch node) |
| Cathode | Forward current exit point | Connected to output rail; polarity marked by visible band on package body |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Prevents edge breakdown during voltage transients, improving reliability in noisy SMPS environments |
| Moisture sensitivity level 1 | Eliminates need for dry-pack or baking prior to reflow, simplifying SMT manufacturing |
| High surge current capability (150A) | Withstands repetitive line surges and inrush currents without degradation |
| Halogen-free construction | Complies with IEC 61249-2-21, supporting RoHS-compliant end-product certification |
| Matte tin-plated leads | Ensures consistent wetting and joint integrity per J-STD-002 solderability standard |
Applications
| Server Power Supply | Laptop Adapter |
|---|---|
Use Scenario: Secondary-side synchronous rectification in 48V–12V intermediate bus converters. IC Role / Device Role / Timing Role: High-current Schottky rectifier replacing MOSFET-based solutions where gate drive complexity is undesirable. Use Value: Delivers 0.75V VF at 8A to minimize conduction loss and simplify thermal design in compact 1U server PSUs. | Use Scenario: Output rectification in 19V/3.42A AC-DC adapters for ultrabooks. IC Role / Device Role / Timing Role: Primary output diode in flyback topology operating at 65–100 kHz switching frequency. Use Value: Enables >90% efficiency at full load with no gate driver overhead and inherent zero-voltage turn-off behavior. |
| LED Driver Module | Industrial DC-DC Converter |
Use Scenario: Constant-current output rectification in isolated buck-boost LED drivers for street lighting. IC Role / Device Role / Timing Role: Freewheeling path for inductor current during switch-off phase in quasi-resonant topology. Use Value: Supports 150A surge tolerance to handle lamp ignition spikes and maintains <10 mA IR at 100°C for stable lumen output over lifetime. | Use Scenario: Input rectification in 24V input, 5V/10A industrial DC-DC modules with wide ambient temperature range. IC Role / Device Role / Timing Role: Bridge rectifier leg in full-wave configuration for unregulated front-end conversion. Use Value: Operates continuously at TJ = +150°C with RθJA = 20°C/W, enabling convection-cooled designs in sealed enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS8P5L-E3/57T (Vishay) | Same DO-214AB package, 50V VRRM, but 8A IF rated at 115°C case temp; VF = 0.67V typ @ 8A | Slightly lower VF improves light-load efficiency; lower thermal resistance (RθJA = 18°C/W) allows higher power density | Preferred when optimizing for minimal conduction loss in thermally constrained layouts |
| MBR850G (ON Semiconductor) | DO-214AB, 50V, 8A, VF = 0.72V typ @ 8A, but TJ max = +125°C and MSL level 2a | Lower max junction temperature limits high-ambient use; requires pre-bake for MSL-sensitive processes | Acceptable for cost-sensitive consumer adapters where ambient ≤60°C and reflow profile permits MSL handling |
Compared with SS8P5L-E3/57T and MBR850G, the SK85C V7G offers superior high-temperature operation (+150°C TJ max) and MSL level 1 compatibility, making it optimal for industrial and server-grade power supplies requiring extended thermal margin and simplified assembly.
Availability
SK85C V7G is available at Aetrix Electronics and suitable for switching mode power supplies, laptop adapters, and industrial DC-DC converters requiring stable component supply and long-term manufacturability.
Supply support for SK85C 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 devices, and MOSFETs since 1979.
The SK82C–SK810C family was designed specifically for high-efficiency, high-reliability AC-DC and DC-DC power conversion across computing, industrial, and lighting applications, emphasizing ruggedness, thermal performance, and SMT manufacturability.
FAQ
What is the maximum junction temperature rating for SK85C V7G?
The SK85C V7G has a maximum junction temperature (TJ max) rating of +150°C, verified per absolute maximum ratings table in the official TSC datasheet Version L2102. This enables continuous operation in high-ambient environments such as enclosed server power supplies or industrial control cabinets where heatsinking is limited. The SK85C V7G maintains specified electrical parameters within this range when derated per the forward current derating curve.
Does SK85C V7G have a guard ring structure, and what is its function?
Yes, the SK85C V7G incorporates a guard ring structure explicitly stated in the "Features" section of the TSC datasheet. This design prevents premature edge breakdown during voltage transients, enhancing robustness against dV/dt-induced failure in fast-switching SMPS circuits. The guard ring ensures stable reverse blocking performance even under high dv/dt stress, directly contributing to field reliability in converter applications using the SK85C V7G.
What is the forward voltage specification for SK85C V7G at rated current?
The SK85C V7G has a maximum forward voltage (VF) of 0.75 V at 8 A forward current and 25°C junction temperature, as confirmed in the "ELECTRICAL SPECIFICATIONS" table. This value is measured under pulse test conditions (PW = 0.3 ms) and defines the dominant conduction loss contributor in power stage design. At elevated temperatures, VF decreases slightly, but system-level loss calculations should use the 0.75 V max value for worst-case thermal analysis of the SK85C V7G.
Is SK85C V7G compatible with lead-free reflow soldering processes?
Yes, the SK85C V7G features matte tin-plated leads qualified per J-STD-002 for solderability, and its DO-214AB package is rated for peak reflow temperatures up to 260°C per JEDEC J-STD-020. With moisture sensitivity level 1, it does not require dry-pack or baking prior to reflow, making it fully compatible with standard lead-free (SnAgCu) reflow profiles used in modern SMT lines handling the SK85C V7G.
What is the surge current rating of SK85C V7G, and how is it defined?
The SK85C V7G is rated for a non-repetitive peak forward surge current (IFSM) of 150 A, defined per JEDEC standards as a single half-sine wave of 8.3 ms duration superimposed on rated DC load. This rating reflects the device's ability to withstand short-duration overcurrent events such as input line surges or output capacitor inrush, and is validated in the "ABSOLUTE MAXIMUM RATINGS" table of the TSC datasheet for the SK85C V7G.
SK85C V7G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 50 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- -
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 50 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SK85C V7G FAQ
1.How can I place an order for SK85C V7G through Aetrix?
Please submit a Request for Quotation (RFQ) for SK85C V7G on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SK85C V7G reliable?
The price and inventory of SK85C V7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK85C V7G is usually 5 days.
3.What payment methods are accepted for SK85C V7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK85C V7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK85C V7G?
SK85C V7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK85C V7G order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SK85C V7G?
For technical support, including SK85C V7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK85C V7G requirements.
6.How does Aetrix verify that SK85C V7G is sourced from the original manufacturer or authorized distributors?
All SK85C V7G products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SK85C V7G meets industry standards.
7.What is the process for return or replacement of SK85C V7G?
All SK85C V7G units undergo pre-shipment inspection (PSI). If there is an issue with SK85C V7G, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SK85C V7G part is unused and in its original packaging.
Return procedure for SK85C V7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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