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Taiwan Semiconductor Corporation SK16B
- Part No.:
- SK16B
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SK16B.pdf
- Description:
- DIODE SCHOTTKY 60V 1A DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,576
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Product details
Overview
SK16B from Taiwan Semiconductor is a 1 A, 60 V Schottky barrier surface-mount rectifier in DO-214AA (SMB) package, featuring 0.75 V forward voltage at 1 A and 5 µA reverse leakage at 100°C, optimized for high-efficiency DC/DC converters and AC/DC adapters.
For engineers reviewing the SK16B datasheet, SK16B pinout, SK16B application, or SK16B equivalent, key selection criteria include its 60 V repetitive peak reverse voltage, 30 A surge current rating, junction-to-lead thermal resistance of 25°C/W, and RoHS/halogen-free compliance for industrial power conversion designs.
Technical Context
The SK16B operates as a single-die Schottky rectifier with guard ring structure for overvoltage protection and is rated for continuous operation up to 150°C junction temperature. Its low VF and fast switching enable reduced conduction losses in high-frequency SMPS topologies.
It delivers 30 A non-repetitive surge current under 8.3 ms half-sine conditions and maintains stable reverse leakage (≤5 µA at 100°C, ≤2 mA at 125°C) across its operating temperature range of –55°C to +150°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in bridge or freewheeling configurations |
| IF | 1 A - Continuous average forward current; determines steady-state power dissipation and heatsink sizing |
| IFSM | 30 A - Peak surge current capability; supports inrush and transient overload without failure |
| VF | 0.75 V @ 1 A, 25°C - Low forward drop improves efficiency and reduces thermal stress in compact layouts |
| RθJL | 25 °C/W - Junction-to-lead thermal resistance; enables direct PCB copper pour thermal management without external heatsink |
| IR | 500 µA @ 25°C, 5 µA @ 100°C - Low reverse leakage preserves standby power integrity in energy-sensitive systems |
Pinout & Package
Package: DO-214AA (SMB), surface-mount plastic case with matte tin-plated leads, cathode indicated by band, weight ≈ 0.093 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential node (e.g., switch node in buck converter); polarity must match layout marking |
| Cathode | Forward current exit / reverse blocking terminal | Marked by band; ties to output rail or ground return path; critical for correct rectification direction |
Key Features
| Feature | Design Value |
|---|---|
| Guard ring overvoltage protection | Enhances ruggedness against voltage transients in unregulated input stages without external snubbers |
| Moisture sensitivity level 1 | Eliminates bake requirements before reflow; supports standard SMT assembly without special handling |
| J-STD-002 solderable terminals | Ensures reliable lead wetting and joint integrity during automated reflow, reducing voiding risk |
| UL 94V-0 molding compound | Meets flame-retardant safety standards for enclosed power supplies and lighting housings |
Applications
| AC/DC Adapters | DC/DC Converters |
|---|---|
Use Scenario: Secondary-side rectification in 5–24 V wall adapters powering consumer electronics. IC Role / Device Role / Timing Role: Schottky rectifier replacing conventional diodes to minimize conduction loss and improve light-load efficiency. Use Value: 0.75 V VF reduces power loss by ~35% vs. silicon diodes, enabling smaller transformers and higher power density. | Use Scenario: Output rectification in isolated flyback or non-isolated buck-boost converters for industrial sensors. IC Role / Device Role / Timing Role: Freewheeling path for inductive energy recovery during switch off-time. Use Value: 30 A IFSM withstands startup surges; 25°C/W RθJL allows direct copper thermal coupling on 2-layer PCBs. |
| LED Drivers | Power Over Ethernet (PoE) |
Use Scenario: Constant-current regulation stage in offline LED drivers for commercial lighting. IC Role / Device Role / Timing Role: Output rectifier in quasi-resonant flyback topology with high-frequency switching (>65 kHz). Use Value: Fast recovery and low VF reduce thermal rise in sealed luminaires, extending LED lifetime. | Use Scenario: Secondary-side rectification in PoE-powered devices (e.g., IP cameras, VoIP phones). IC Role / Device Role / Timing Role: High-reliability rectifier handling intermittent load surges and ambient temperatures up to 70°C. Use Value: 150°C max junction temperature and halogen-free construction meet PoE safety and environmental compliance mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SS16 (ON Semiconductor) | Same 1 A / 60 V rating, but VF = 0.72 V typ. at 1 A; RθJL = 20°C/W; SMB package | Slightly lower thermal resistance; tighter VF distribution; preferred where board-level thermal margin is constrained | Select SS16 when optimizing for minimal junction temperature rise under sustained 1 A load |
| SB160 (Diotec) | 1 A / 60 V, VF = 0.85 V max at 1 A; IFSM = 25 A; same DO-214AA footprint | Higher VF increases conduction loss; lower surge rating limits use in high-inrush applications | Choose SB160 only if cost sensitivity outweighs efficiency and surge robustness requirements |
Compared with SS16 and SB160, the SK16B offers balanced performance: mid-range VF (0.75 V), industry-leading 30 A surge capability, and full 150°C junction rating-making it optimal for thermally demanding, high-reliability adapter and converter designs.
Availability
SK16B is available at Aetrix Electronics and suitable for AC/DC adapters, DC/DC converters, and LED drivers requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for SK16B 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 SK16B belongs to TSC's SKx series of Schottky rectifiers, engineered specifically for high-efficiency, high-reliability secondary-side rectification in compact, thermally constrained power supplies.
FAQ
What is the maximum junction temperature rating for the SK16B?
The SK16B has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table in the official TSC datasheet M2212. This allows operation in high-ambient environments such as enclosed LED drivers or industrial converters. The SK16B maintains specified electrical performance up to this limit, provided thermal design respects the 25°C/W junction-to-lead resistance and appropriate PCB copper area is allocated.
Does the SK16B have a guard ring structure, and what benefit does it provide?
Yes, the SK16B incorporates a guard ring structure explicitly stated in its features list. This design enhances edge termination robustness, improving resistance to voltage-induced avalanche breakdown during transient overvoltage events-such as line surges or inductive kickback-without requiring external clamping components. The guard ring directly contributes to the device's 10,000 V/µs dV/dt rating and reliability in unregulated input stages.
What is the reverse leakage current of the SK16B at elevated temperature?
The SK16B exhibits ≤5 µA reverse leakage current (IR) at rated VRRM = 60 V and TJ = 100°C, and ≤2 mA at TJ = 125°C, per the Electrical Specifications table in the TSC M2212 datasheet. These values are measured under 30 ms pulse conditions and confirm stable blocking behavior in high-temperature power supply outputs where standby current budgets are tight.
Is the SK16B compatible with lead-free reflow processes?
Yes, the SK16B uses matte tin-plated leads compliant with J-STD-002 for solderability, and its DO-214AA (SMB) package is rated for moisture sensitivity level 1 per J-STD-020-meaning it can be subjected to standard lead-free reflow profiles (peak 260°C) without baking. The UL 94V-0 molding compound also ensures mechanical stability during thermal cycling.
What packaging format is available for the SK16B?
The SK16B is supplied in tape-and-reel format with 3,000 units per reel, as specified in the Ordering Information section of the TSC M2212 datasheet. This packaging supports automated pick-and-place assembly and is compatible with standard 8 mm carrier tape equipment used in high-volume SMT lines.
SK16B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AA, SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 1A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 1 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 60 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SK16B FAQ
1.How can I place an order for SK16B through Aetrix?
Please submit a Request for Quotation (RFQ) for SK16B 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 SK16B reliable?
The price and inventory of SK16B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK16B is usually 5 days.
3.What payment methods are accepted for SK16B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK16B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK16B?
SK16B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK16B 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 SK16B?
For technical support, including SK16B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK16B requirements.
6.How does Aetrix verify that SK16B is sourced from the original manufacturer or authorized distributors?
All SK16B 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 SK16B meets industry standards.
7.What is the process for return or replacement of SK16B?
All SK16B units undergo pre-shipment inspection (PSI). If there is an issue with SK16B, 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 SK16B part is unused and in its original packaging.
Return procedure for SK16B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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