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Taiwan Semiconductor Corporation SK54C V7G
- Part No.:
- SK54C V7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SK54C V7G.pdf
- Description:
- DIODE SCHOTTKY 40V 5A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,628
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Product details
Overview
SK54C V7G from Taiwan Semiconductor is a 5A, 40V Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, featuring 0.55V forward voltage at 5A/25°C, 120A surge current capability, and guard ring overvoltage protection. It delivers high efficiency in DC-DC conversion stages of switching mode power supplies and AC adapters.
For engineers reviewing the SK54C V7G datasheet, SK54C V7G pinout, SK54C V7G application, or SK54C V7G equivalent, key selection criteria include its 40V reverse voltage rating, low VF for thermal management, moisture sensitivity level 1 compliance, RoHS/halogen-free status, and suitability for automated SMT placement in high-volume industrial power designs.
Technical Context
The SK54C V7G is a single-die Schottky rectifier optimized for high-frequency switching applications where low forward voltage drop and fast recovery are critical. Its junction-to-lead thermal resistance of 13°C/W enables effective heat transfer to PCB copper pads under continuous 5A operation.
Designed with a guard ring structure, it withstands transient overvoltage events without avalanche breakdown. The device operates across -55°C to +150°C junction temperature range and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - Maximum repetitive reverse voltage; defines safe blocking capability in 36–42 V nominal input rails |
| IF | 5 A - Continuous forward current; supports output stages up to ~60 W at 12 V with adequate heatsinking |
| VF @ 5A, 25°C | 0.55 V - Low conduction loss reduces power dissipation to ≤2.75 W, easing thermal design |
| IFSM | 120 A - Peak non-repetitive surge current; handles inrush and fault transients in SMPS startup |
| TJ max | +150 °C - Maximum junction temperature; allows operation in enclosed, high-ambient environments |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance; enables direct thermal path to PCB pad for stable 5A DC operation |
| Package | DO-214AB (SMC) - Standardized surface-mount outline with 6.6 mm × 7.15 mm footprint and 2.45 mm height |
Pinout & Package
DO-214AB (SMC) package with cathode-indicated band; two-terminal device with anode and cathode leads soldered to PCB pads per JEDEC standard layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current entry point | Connected to lower-potential side (e.g., switch node or ground return) in buck/flyback secondary |
| Cathode | Output current exit point | Connected to output capacitor and load; polarity marked by molded band on body |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Prevents edge breakdown under voltage transients, improving reliability in noisy power rails |
| Moisture sensitivity level 1 | Eliminates bake requirement before reflow, reducing manufacturing cost and cycle time |
| Matte tin-plated leads | Ensures consistent solderability per J-STD-002, supporting lead-free and SnPb processes |
| UL 94V-0 molding compound | Meets flammability safety standards for enclosed industrial and lighting enclosures |
| Halogen-free & RoHS compliant | Supports environmental compliance for global OEM shipments without material declaration overhead |
Applications
| Laptop Adapter Secondary Rectification | Industrial DC-DC Converter Output Stage |
|---|---|
Use Scenario: 19 V/3.42 A output stage in 65 W laptop adapter with synchronous rectification not implemented. IC Role / Device Role / Timing Role: Primary unidirectional power delivery device converting transformer secondary AC to regulated DC. Use Value: 0.55 V VF minimizes conduction loss versus silicon diodes, improving efficiency by ~2.1% at full load. |
Use Scenario: 24 V input to 5 V/10 A isolated DC-DC module for PLC I/O power supply. IC Role / Device Role / Timing Role: Freewheeling rectifier in secondary-side synchronous or quasi-resonant topology. Use Value: 120 A IFSM withstands repeated start-up surges and short-circuit foldback events without degradation. |
| LED Driver Constant-Current Output | Telecom Power Shelf Rectification |
Use Scenario: Output rectification in 48 V input, 36 V/1.5 A constant-current LED driver for street lighting. IC Role / Device Role / Timing Role: Main output rectifier delivering stable current to series-connected LED strings. Use Value: 40 V VRRM provides 20% margin above 36 V LED string forward voltage, ensuring safe blocking during dimming transients. |
Use Scenario: -48 V telecom power shelf with redundant 50 A output modules using parallel rectifiers. IC Role / Device Role / Timing Role: High-current, low-loss rectifier in multi-phase secondary winding configuration. Use Value: DO-214AB package enables dense layout with 13°C/W RθJL, allowing parallel operation without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay SS54-E3/57T | Same 5A/40V rating, VF = 0.55 V, but RθJA = 60°C/W (vs. 53°C/W for SK54C V7G); DO-214AB package | Slightly higher thermal resistance requires larger copper area for same 5A derating | Preferred where Vishay supply chain alignment or qualification history is required |
| ON Semiconductor SB540-T | 5A/40V, VF = 0.54 V, but TJ max = +125°C (vs. +150°C); same DO-214AB package | Lower max junction temperature limits use in high-ambient industrial enclosures (>85°C ambient) | Valid for commercial-grade applications with controlled thermal environment |
Compared with SS54-E3/57T and SB540-T, the SK54C V7G offers superior high-temperature operation (+150°C), tighter thermal resistance control (RθJL = 13°C/W), and guard ring protection-making it preferred for ruggedized industrial and lighting power supplies where long-term reliability under thermal stress is critical.
Availability
SK54C V7G is available at Aetrix Electronics and suitable for switching mode power supplies, AC adapters, and LED lighting applications requiring stable component supply, consistent parametric performance, and full traceability across production batches.
Supply support for SK54C 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, serving global power electronics markets since 1979.
The SK52C–SK520C family was developed specifically for high-efficiency, surface-mount Schottky rectification in cost-sensitive yet thermally demanding power conversion systems-from consumer adapters to industrial SMPS.
FAQ
What is the maximum junction temperature rating for SK54C V7G?
The SK54C V7G has a maximum junction temperature (TJ) of +150°C, enabling reliable operation in enclosed industrial power supplies where ambient temperatures exceed 85°C. This rating is validated per TSC's absolute maximum ratings table and supported by thermal characterization curves showing stable derating up to 150°C. The SK54C V7G maintains specified electrical parameters within this range when mounted on a 16 mm × 16 mm Cu pad per JEDEC test conditions.
Does SK54C V7G meet RoHS and halogen-free requirements?
Yes, the SK54C V7G is RoHS compliant and halogen-free per TSC's product documentation and material declarations. The molding compound satisfies UL 94V-0 flammability rating, and terminals are matte tin-plated to meet J-STD-002 solderability standards. These attributes are confirmed in the "Features" section of the official S2311 datasheet revision and apply specifically to the SK54C V7G marking variant.
What is the forward voltage of SK54C V7G at 5A and 100°C junction temperature?
The SK54C V7G forward voltage remains ≤0.62 V at 5A and 100°C junction temperature, based on interpolation of the typical forward characteristics curve (Fig.4) and the VF vs. temperature trend shown in the datasheet. This value reflects real-world conduction loss under sustained load in thermally constrained environments, and is lower than silicon diodes by ≥0.3 V at equivalent current.
Is SK54C V7G suitable for automated SMT assembly?
Yes, the SK54C V7G is explicitly designed for automated placement, as stated in its "Features" list. Its DO-214AB (SMC) package, matte tin-plated leads, and moisture sensitivity level 1 classification eliminate pre-bake requirements and ensure compatibility with standard reflow profiles-including lead-free (J-STD-20D) and SnPb processes. The SK54C V7G has been qualified for high-yield pick-and-place operations in volume manufacturing.
What does the "V7G" suffix indicate in SK54C V7G?
The "V7G" suffix in SK54C V7G denotes a specific manufacturing variant per Taiwan Semiconductor's internal coding: "V7" indicates tape-and-reel packaging with 3,000 units per reel, and "G" signifies green (halogen-free) compound compliance. This suffix is documented in TSC's ordering information table and distinguishes the SK54C V7G from other packing or material variants such as SK54C-T or SK54C-G.
SK54C 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):
- 40 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 550 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 40 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SK54C V7G FAQ
1.How can I place an order for SK54C V7G through Aetrix?
Please submit a Request for Quotation (RFQ) for SK54C 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 SK54C V7G reliable?
The price and inventory of SK54C V7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK54C V7G is usually 5 days.
3.What payment methods are accepted for SK54C V7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK54C V7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK54C V7G?
SK54C V7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK54C 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 SK54C V7G?
For technical support, including SK54C V7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK54C V7G requirements.
6.How does Aetrix verify that SK54C V7G is sourced from the original manufacturer or authorized distributors?
All SK54C 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 SK54C V7G meets industry standards.
7.What is the process for return or replacement of SK54C V7G?
All SK54C V7G units undergo pre-shipment inspection (PSI). If there is an issue with SK54C 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 SK54C V7G part is unused and in its original packaging.
Return procedure for SK54C V7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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