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Taiwan Semiconductor Corporation SK53C R7G
- Part No.:
- SK53C R7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SK53C R7G.pdf
- Description:
- DIODE SCHOTTKY 30V 5A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,918
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Product details
Overview
SK53C R7G from Taiwan Semiconductor is a 5A, 30V Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, optimized for high-efficiency switching power supplies and adapters. It delivers low forward voltage (0.55 V at 5 A, 25°C), high surge capability (120 A IFSM), and operates up to 150°C junction temperature.
For engineers reviewing the SK53C R7G datasheet, SK53C R7G pinout, SK53C R7G application, or SK53C R7G equivalent, key selection criteria include its 30 V repetitive peak reverse voltage (VRRM), 13 °C/W junction-to-lead thermal resistance, guard ring–enhanced overvoltage protection, and RoHS/halogen-free compliance for industrial and consumer power conversion designs.
Technical Context
The SK53C R7G is a single-die, unidirectional Schottky rectifier with cathode band polarity indication and matte tin-plated leads compliant with J-STD-002 solderability. Its 30 V VRRM rating targets mid-voltage DC/DC and AC/DC secondary-side rectification where low conduction loss is critical.
Thermal performance is characterized on a 16 mm × 16 mm PCB copper pad: RθJA = 53 °C/W, RθJC = 16 °C/W, enabling reliable operation under sustained 5 A forward current with appropriate board layout. The device meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse blocking voltage; defines safe operating range in flyback/freewheeling paths |
| IF | 5 A - Continuous forward current rating at TA = 25°C; sets baseline conduction capacity |
| VF | 0.55 V @ 5 A, 25°C - Low forward drop reduces power loss and improves efficiency in high-current SMPS outputs |
| IFSM | 120 A - Peak non-repetitive surge current (8.3 ms half-sine); supports inrush and transient overload tolerance |
| TJ max | 150 °C - Maximum junction temperature; enables operation in thermally constrained adapter and lighting enclosures |
| RθJL | 13 °C/W - Junction-to-lead thermal resistance; informs heatsinking strategy when lead-mounted on PCB |
| IR | 0.5 mA @ 30 V, 25°C - Low reverse leakage preserves efficiency in high-impedance bias networks |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, molded plastic case with UL 94V-0 flammability rating and cathode band polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Input current terminal | Connected to transformer secondary or switch node; accepts forward current flow into device |
| Cathode | Output current terminal | Connected to output capacitor/rail; marked by visible band; carries rectified DC current out |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Enhances ruggedness against transient overvoltage without external snubbers in SMPS freewheeling paths |
| Low VF (0.55 V) | Reduces conduction loss by ~30% vs. comparable 40 V Schottkys, directly improving 12 V output efficiency |
| J-STD-020 MSL Level 1 | Enables standard reflow assembly without baking or special handling-no moisture-related popcorning risk |
| RoHS & halogen-free | Meets global environmental compliance requirements for consumer electronics and lighting products |
| 120 A IFSM rating | Withstands repeated startup surges in 50–100 W adapters without degradation or bond-wire fusing |
Applications
| AC/DC Adapters | LED Lighting Drivers |
|---|---|
Use Scenario: Secondary-side rectification in compact 24–48 W wall adapters powering IoT gateways and USB-C PD accessories. IC Role / Device Role / Timing Role: Unidirectional current steering diode converting transformer AC output to regulated DC bus. Use Value: 0.55 V VF minimizes heat rise in sealed plastic housings, extending reliability beyond 50,000-hour MTBF. |
Use Scenario: Constant-current output rectification in isolated LED drivers for commercial downlights and streetlights. IC Role / Device Role / Timing Role: High-reliability output diode in flyback topology delivering stable current to LED strings. Use Value: 150°C TJ max and 120 A IFSM ensure robustness during cold-start surges and ambient temperatures up to 85°C. |
| PCB-Mounted DC/DC Converters | Industrial Power Supplies |
Use Scenario: Output rectification in 12 V/5 A isolated DC/DC modules used in PLC I/O cards and sensor interfaces. IC Role / Device Role / Timing Role: Primary output diode in synchronous or asynchronous buck-derived topologies. Use Value: DO-214AB footprint allows dense layout; 13 °C/W RθJL enables direct thermal coupling to copper pour for passive cooling. |
Use Scenario: Input-stage freewheeling diode in 24 V industrial SMPS for motor drives and HMI panels. IC Role / Device Role / Timing Role: Energy recirculation path during MOSFET turn-off in hard-switched converters. Use Value: Guard ring withstands 10,000 V/µs dV/dt transients common in noisy factory environments without avalanche failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-50WQ03FNTR-1 | Same 30 V VRRM, 5 A IF, but TO-220AC package (through-hole); VF = 0.49 V @ 5 A | Requires through-hole assembly and larger board area; better natural convection cooling | Select when legacy through-hole manufacturing or higher thermal mass is preferred over SMT density |
| ON Semiconductor SB530-T | DO-214AA (SMB) package, 30 V VRRM, 5 A IF, VF = 0.52 V @ 5 A; lower IFSM (100 A) | Smaller footprint but lower surge margin; RθJA = 65 °C/W vs. SK53C R7G's 53 °C/W | Choose for space-constrained designs where 20 A lower surge rating is acceptable and thermal margin permits |
Compared with VS-50WQ03FNTR-1 and SB530-T, the SK53C R7G offers superior SMT manufacturability in DO-214AB, balanced VF/thermal trade-offs (0.55 V, 53 °C/W), and industry-leading 120 A surge rating-making it optimal for high-volume, thermally demanding adapter and lighting applications.
Availability
SK53C R7G is available at Aetrix Electronics and suitable for AC/DC adapters, LED lighting drivers, and industrial DC/DC converters requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for SK53C 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 semiconductor manufacturer specializing in discrete power devices, including Schottky rectifiers, MOSFETs, and TVS diodes, with ISO/TS 16949 and ISO 14001 certifications.
The SK52C–SK520C family was designed specifically for high-efficiency, cost-sensitive power conversion in consumer and industrial applications-emphasizing low VF, robust surge capability, and full RoHS/halogen-free compliance without performance compromise.
FAQ
What is the maximum junction temperature rating for the SK53C R7G?
The SK53C R7G has a maximum junction temperature (TJ max) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet (Version S2311). This rating allows continuous operation in thermally demanding environments such as enclosed LED drivers and sealed AC/DC adapters, provided board-level thermal design maintains junction temperature below this limit. Derating curves in the datasheet confirm usable current capacity down to 3.5 A at 125°C ambient with standard PCB copper area.
Does the SK53C R7G have a guard ring structure, and what benefit does it provide?
Yes, the SK53C R7G incorporates a guard ring for overvoltage protection, explicitly stated in the "Features" section of the Taiwan Semiconductor datasheet. This structure enhances edge termination robustness, allowing the device to withstand rapid voltage transients (dV/dt = 10,000 V/µs) without premature avalanche breakdown-critical in flyback and forward converter freewheeling paths where ringing and overshoot are common.
Is the SK53C R7G RoHS and halogen-free compliant?
Yes, the SK53C R7G is both RoHS compliant and halogen-free, as confirmed in the "Features" list of the official Taiwan Semiconductor documentation. These compliance attributes meet EU Directive 2011/65/EU and IEC 61249-2-21 standards, supporting market access for consumer electronics, lighting, and industrial equipment sold in regulated regions.
What is the forward voltage (VF) of the SK53C R7G at rated current and temperature?
The SK53C R7G exhibits a typical forward voltage of 0.55 V at 5 A forward current and 25°C junction temperature, per the "ELECTRICAL SPECIFICATIONS" table in the Taiwan Semiconductor datasheet. This value is measured under pulsed conditions (PW = 0.3 ms) to minimize self-heating effects, and represents a key efficiency parameter for power loss calculation in high-current output stages.
What packaging and reel quantity is offered for the SK53C R7G?
The SK53C R7G is supplied in DO-214AB (SMC) package on tape-and-reel format, with 3,000 units per reel, as specified in the "ORDERING INFORMATION" section of the Taiwan Semiconductor datasheet. The reel conforms to EIA-481 standards and supports automated pick-and-place assembly without modification to standard SMT feeders.
SK53C R7G 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):
- 30 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 @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SK53C R7G FAQ
1.How can I place an order for SK53C R7G through Aetrix?
Please submit a Request for Quotation (RFQ) for SK53C R7G 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 SK53C R7G reliable?
The price and inventory of SK53C R7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK53C R7G is usually 5 days.
3.What payment methods are accepted for SK53C R7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK53C R7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK53C R7G?
SK53C R7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK53C R7G 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 SK53C R7G?
For technical support, including SK53C R7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK53C R7G requirements.
6.How does Aetrix verify that SK53C R7G is sourced from the original manufacturer or authorized distributors?
All SK53C R7G 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 SK53C R7G meets industry standards.
7.What is the process for return or replacement of SK53C R7G?
All SK53C R7G units undergo pre-shipment inspection (PSI). If there is an issue with SK53C R7G, 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 SK53C R7G part is unused and in its original packaging.
Return procedure for SK53C R7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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