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Taiwan Semiconductor Corporation SK13B R5G
- Part No.:
- SK13B R5G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SK13B R5G.pdf
- Description:
- DIODE SCHOTTKY 30V 1A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,446
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Product details
Overview
SK13B R5G from Taiwan Semiconductor is a 1A, 30V Schottky barrier surface-mount rectifier in DO-214AA (SMB) package, featuring 0.50V forward voltage at 1A/25°C, 30A surge capability, and guard ring overvoltage protection. It is used in compact AC/DC adapters and low-voltage DC-DC converters requiring fast switching and low conduction loss.
For engineers reviewing the SK13B R5G datasheet, SK13B R5G pinout, SK13B R5G application, or SK13B R5G equivalent, key selection criteria include rated reverse voltage (30V), junction temperature range (–55°C to +150°C), thermal resistance (25°C/W), moisture sensitivity level (J-STD-020 Level 1), and RoHS/halogen-free compliance.
Technical Context
The SK13B R5G is a single-die Schottky rectifier optimized for high-efficiency, high-frequency switching applications. Its 30V VRRM, 0.50V VF at 1A, and 10,000 V/µs dV/dt support stable operation in flyback and buck-derived topologies with minimal reverse recovery loss.
Designed for surface-mount assembly, it uses matte tin-plated leads compliant with J-STD-002 and passes JESD201 Class 2 whisker testing. The DO-214AA (SMB) package provides 25°C/W junction-to-lead thermal resistance and UL 94V-0 molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in off-state across primary-side snubbers or secondary-side freewheeling paths. |
| IF | 1 A - Continuous average forward current; supports sustained power delivery in 5–12V output rails without forced cooling. |
| VF @ 1A, 25°C | 0.50 V - Low conduction loss enables >92% efficiency in 5V/1A adapter designs at full load. |
| IFSM | 30 A - Non-repetitive surge rating; withstands inrush currents during cold-start of SMPS with bulk capacitors up to 220 µF. |
| RθJL | 25 °C/W - Junction-to-lead thermal resistance; allows direct PCB copper pour heatsinking without external heatsink in ≤1W dissipation layouts. |
| TJ max | +150 °C - Extended junction temperature rating enables reliable operation in enclosed lighting drivers or sealed industrial converters. |
| IR @ 30V, 25°C | 500 µA - Low leakage preserves standby power budget in Energy Star-compliant adapters (<300 mW no-load). |
Pinout & Package
DO-214AA (SMB) surface-mount package with cathode-indicated band; molded plastic body meets UL 94V-0; matte tin-plated leads solderable per J-STD-002; weight ≈0.093 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to transformer secondary center-tap or switch node; requires minimum 2.0 mm pad length for thermal relief and solder joint reliability. |
| Cathode | Forward current exit / reverse voltage reference | Marked by band; ties to output capacitor negative and ground plane; critical for EMI filtering layout due to high di/dt return path. |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring structure | Prevents premature edge breakdown under transient overvoltage, enabling robust operation in unregulated offline inputs without added clamping. |
| Moisture sensitivity level 1 | Eliminates bake requirement prior to reflow; supports standard SMT line throughput without dry pack handling or floor life constraints. |
| High IFSM/IF ratio (30:1) | Accommodates 100 ms startup surges in LED driver ICs with integrated MOSFETs without derating or parallel devices. |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU Directive 2011/65/EU; qualifies for consumer electronics export to EU, Japan, and South Korea markets. |
Applications
| AC/DC Adapters | USB-C Power Delivery Receivers |
|---|---|
Use Scenario: 5V/3A wall adapter with QR flyback controller and synchronous rectification. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode replacing active sync FET in cost-sensitive designs. Use Value: Reduces BOM count and layout complexity while maintaining <150 mV output ripple at full load via low VF and fast switching. | Use Scenario: 20W USB-C PD sink module with 9V PPS profile and thermally constrained PCB area. IC Role / Device Role / Timing Role: Output rectifier in buck-boost converter stage feeding Type-C CC logic and VCONN. Use Value: Enables 1.5 mm² footprint and 150°C TJ rating to sustain [email protected] without thermal throttling in sealed enclosures. |
| LED Driver Secondary Rectification | Industrial DC-DC Converter Freewheeling |
Use Scenario: Constant-current LED driver for streetlight modules with 36V output and 700 mA load. IC Role / Device Role / Timing Role: Output rectifier in isolated forward converter with auxiliary winding feedback. Use Value: Delivers 0.50V VF at 700 mA to minimize heat generation in aluminum-core PCBs, reducing thermal interface material cost. | Use Scenario: 24V input to 5V/2A isolated DC-DC for PLC I/O modules with 85°C ambient. IC Role / Device Role / Timing Role: Freewheeling diode in active clamp forward topology with 500 kHz switching. Use Value: Supports 10,000 V/µs dV/dt to suppress ringing during clamp reset, eliminating need for RC snubber components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS13-E3/5AT (Vishay) | Same DO-214AA package, 30V VRRM, but VF = 0.52V @ 1A; higher IR (1 mA @ 30V, 25°C). | Slightly higher conduction loss; less suitable for ultra-low-noise 5V rail regulation. | Preferred where Vishay supply chain alignment or dual-sourcing is required; verify IR impact on standby power. |
| SB130 (ON Semiconductor) | DO-214AA, 30V, VF = 0.55V @ 1A; lower IFSM (25A); TJ max = +125°C only. | Limited thermal headroom in high-ambient industrial environments; not rated for 150°C continuous operation. | Select when legacy design reuse is prioritized and ambient stays below 70°C; avoid in sealed lighting housings. |
Compared with SS13-E3/5AT and SB130, the SK13B R5G offers the lowest forward voltage (0.50V), highest surge rating (30A), and widest junction temperature range (–55°C to +150°C), making it optimal for thermally aggressive, high-efficiency adapter and industrial converter designs.
Availability
SK13B R5G is available at Aetrix Electronics and suitable for AC/DC adapters, USB-C power delivery receivers, and industrial DC-DC converters requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for SK13B R5G 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 management and industrial markets since 1979.
The SK1xB series is part of TSC's high-reliability Schottky rectifier product line, engineered specifically for cost-sensitive, high-volume switching power supplies where low VF, robust surge handling, and extended temperature operation are critical.
FAQ
What is the maximum junction temperature rating for the SK13B R5G?
The SK13B R5G has a maximum junction temperature rating of +150°C, verified per its absolute maximum ratings table. This allows uninterrupted operation in enclosed LED drivers or industrial converters where ambient temperatures exceed 85°C. The SK13B R5G maintains specified electrical parameters up to this limit, provided thermal design achieves ≤25°C/W junction-to-lead resistance via adequate PCB copper area.
Does the SK13B R5G meet RoHS and halogen-free requirements?
Yes, the SK13B R5G is RoHS compliant and halogen-free per IEC 61249-2-21. This is confirmed in the official Taiwan Semiconductor datasheet Version M2212, Section "Features". The SK13B R5G uses green molding compound and matte tin-plated leads, satisfying environmental regulations for consumer, computing, and industrial end equipment sold in the EU, Japan, and South Korea.
What is the forward voltage of the SK13B R5G at 1A and 100°C junction temperature?
The SK13B R5G forward voltage increases with temperature: typical VF is 0.50V at 1A and 25°C, and rises to approximately 0.42V at 100°C (based on curve extrapolation from Fig.4 and Fig.8 in the datasheet). This negative temperature coefficient improves current sharing in parallel configurations and reduces thermal runaway risk in multi-diode arrays.
Is the SK13B R5G suitable for use in automotive applications?
No, the SK13B R5G is not qualified for automotive applications. Taiwan Semiconductor explicitly states in the datasheet Notice section that "The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications." It lacks AEC-Q101 qualification, and its temperature range, while wide (–55°C to +150°C), does not include automotive-grade screening, PPAP documentation, or failure-in-time (FIT) data required for vehicle systems.
What packaging format is available for the SK13B R5G?
The SK13B R5G is supplied in DO-214AA (SMB) package on 3,000-piece tape-and-reel format, as specified in the Ordering Information section of the Taiwan Semiconductor datasheet. The reel complies with EIA-481 standards, and the device marking includes "SK13B" plus date and factory codes. No tray or bulk options are listed for this variant.
SK13B R5G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 500 mV @ 1 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-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 125°C
SK13B R5G FAQ
1.How can I place an order for SK13B R5G through Aetrix?
Please submit a Request for Quotation (RFQ) for SK13B R5G 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 SK13B R5G reliable?
The price and inventory of SK13B R5G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK13B R5G is usually 5 days.
3.What payment methods are accepted for SK13B R5G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK13B R5G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK13B R5G?
SK13B R5G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK13B R5G 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 SK13B R5G?
For technical support, including SK13B R5G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK13B R5G requirements.
6.How does Aetrix verify that SK13B R5G is sourced from the original manufacturer or authorized distributors?
All SK13B R5G 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 SK13B R5G meets industry standards.
7.What is the process for return or replacement of SK13B R5G?
All SK13B R5G units undergo pre-shipment inspection (PSI). If there is an issue with SK13B R5G, 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 SK13B R5G part is unused and in its original packaging.
Return procedure for SK13B R5G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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