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Taiwan Semiconductor Corporation SK86CH
- Part No.:
- SK86CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SK86CH.pdf
- Description:
- DIODE SCHOTTKY 60V 8A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,239
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Product details
Overview
SK86CH from Taiwan Semiconductor is a single-die, AEC-Q101-qualified Schottky barrier rectifier in DO-214AB (SMC) package, rated for 60 V repetitive peak reverse voltage (VRRM), 8 A average forward current (IF), and 150 A non-repetitive surge current (IFSM); used in automotive DC/DC converters and reverse battery protection circuits.
For engineers reviewing the SK86CH datasheet, SK86CH pinout, SK86CH application, or SK86CH equivalent, key selection criteria include its 60 V VRRM rating, 0.75 V typical forward voltage at 8 A and 25°C, 10 mA max reverse leakage at 100°C, 125–150°C junction temperature range, and DO-214AB mechanical compatibility with high-power surface-mount layouts.
Technical Context
The SK86CH operates as a unidirectional power rectifier with low forward voltage drop optimized for high-frequency switching efficiency in automotive-grade power conversion. Its guard ring structure provides over-voltage robustness, and it meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
Thermally, the device exhibits a typical junction-to-ambient thermal resistance (RθJA) of 20°C/W in standard PCB mounting, enabling sustained 8 A conduction without forced cooling under defined layout conditions. It supports pulse operation up to 150 A (8.3 ms half-sine) and maintains <10 mA IR at rated VR and 100°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in DC/DC flyback or freewheeling paths |
| IF | 8 A - Continuous average forward current at TA = 25°C; sets baseline conduction capability for power rail rectification |
| IFSM | 150 A - Non-repetitive surge current (8.3 ms); enables survival during load dump or inrush events |
| VF @ 8A, 25°C | 0.75 V typ - Forward voltage drop directly impacts conduction loss and thermal rise in high-current paths |
| IR @ 60V, 100°C | 10 mA max - Reverse leakage determines standby power loss and thermal runaway risk in hot environments |
| TJ Range | –55°C to +150°C - Extended junction temperature rating supports under-hood automotive deployment |
| RθJA | 20°C/W - Thermal resistance value used to calculate junction temperature rise under real PCB layout conditions |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, single-anode/single-cathode configuration; polarity indicated by cathode band; matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or switch node) in freewheeling or reverse protection topologies |
| Cathode | Forward current exit point | Connected to higher-potential rail (e.g., battery input or output node); cathode band marks this terminal physically |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronic systems including engine control, lighting, and body electronics |
| Guard ring structure | Enhances ruggedness against transient over-voltage spikes without external snubbers |
| Moisture sensitivity level 1 | Enables direct placement without baking; reduces manufacturing overhead in SMT lines |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS directives for environmentally regulated end equipment |
| High dV/dt rating | 10,000 V/µs critical rate of rise ensures stable blocking during fast-switching transients |
Applications
| Automotive DC/DC Converters | Reverse Battery Protection |
|---|---|
Use Scenario: Step-down conversion in 12 V/48 V dual-battery architectures for ADAS and infotainment systems. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck regulators. Use Value: 0.75 V VF minimizes conduction loss at 8 A, improving efficiency and reducing heatsink requirements. | Use Scenario: Preventing damage from accidental reverse connection of vehicle battery during service or jump-start. IC Role / Device Role / Timing Role: Series-blocking rectifier placed between battery and main power distribution. Use Value: 60 V VRRM and 150 A IFSM withstand load dump surges while maintaining low forward drop during normal operation. |
| LED Headlamp Drivers | Industrial SMPS Secondary Rectification |
Use Scenario: Constant-current regulation for high-intensity automotive LED arrays requiring thermal-stable rectification. IC Role / Device Role / Timing Role: Output rectifier in isolated flyback or forward converters driving LED strings. Use Value: 150°C TJ max and 10 mA IR at 100°C ensure reliability in sealed, thermally constrained headlamp housings. | Use Scenario: Secondary-side rectification in 200–500 W industrial switch-mode power supplies. IC Role / Device Role / Timing Role: High-current output diode replacing slower, higher-loss alternatives. Use Value: DO-214AB package supports >6 A continuous conduction with 20°C/W RθJA, enabling compact board-level thermal design. |
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-8EWH06FN-M3/45 | Same 60 V VRRM, 8 A IF, but TO-277 package (smaller footprint, higher RθJA ≈ 28°C/W) | Preferred where board space is constrained but thermal margin allows higher junction rise | Select when footprint reduction outweighs thermal derating needs; not drop-in due to different pad layout |
| ON Semiconductor SB860-E3/45 | 60 V VRRM, 8 A IF, DO-214AB package, but VF = 0.72 V typ (slightly lower conduction loss) | Better suited for ultra-low-loss 12 V output rails where sub-30 mV VF delta improves full-load efficiency | Choose for marginal thermal designs needing lowest possible VF; identical mounting and polarity marking |
Compared with VS-8EWH06FN-M3/45 and SB860-E3/45, the SK86CH offers balanced thermal performance (20°C/W), AEC-Q101 qualification, and guard ring ruggedness-making it optimal for automotive under-hood use where reliability under surge and temperature stress is prioritized over minimal VF or smallest footprint.
Availability
SK86CH is available at Aetrix Electronics and suitable for automotive DC/DC converters, reverse battery protection circuits, and LED headlamp drivers requiring stable component supply across production lifecycles.
Supply support for SK86CH 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.
The SK86CH belongs to TSC's AEC-Q101-qualified SK8xCH Schottky rectifier family, engineered for high-efficiency, high-reliability automotive power conversion and protection applications.
FAQ
What is the maximum junction temperature rating for the SK86CH?
The SK86CH has a maximum junction temperature (TJ) rating of +150°C, with an operational range from –55°C to +150°C. This extended rating supports deployment in under-hood automotive environments where ambient temperatures exceed 105°C. The SK86CH maintains specified electrical performance-including 10 mA max reverse leakage at 100°C-within this full range, and its thermal design must account for RθJA = 20°C/W to avoid exceeding 150°C under load.
Is the SK86CH pin-compatible with other SK8xCH series devices?
Yes, all SK8xCH devices-including SK82CH through SK810CH-share identical DO-214AB (SMC) package dimensions, pinout, and polarity marking (cathode band). The SK86CH uses the same anode/cathode terminal configuration and mechanical footprint as SK85CH and SK810CH, enabling board-level voltage scalability without layout changes. However, electrical parameters such as VRRM and VF differ per variant, so system-level validation is required when substituting.
Does the SK86CH meet automotive qualification standards?
Yes, the SK86CH is explicitly AEC-Q101 qualified per the manufacturer's documentation, confirming its suitability for automotive electronic modules. This qualification covers stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life. The SK86CH also complies with JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity-key requirements for automated SMT assembly in automotive production lines.
What is the forward voltage specification for the SK86CH at 8 A and elevated temperature?
The SK86CH specifies a typical forward voltage (VF) of 0.75 V at IF = 8 A and TJ = 25°C. At higher junction temperatures (e.g., 100°C), VF decreases slightly due to the negative temperature coefficient of Schottky diodes; however, the datasheet does not provide a guaranteed max VF at elevated temperature. Designers should use the 25°C typ value with thermal modeling to estimate actual drop under operating conditions, referencing the SK86CH's Fig.4 Typical Forward Characteristics curve.
Can the SK86CH be used in reverse battery protection without additional circuitry?
Yes, the SK86CH is commonly deployed as a series-connected reverse polarity protection diode, leveraging its 60 V VRRM and 150 A IFSM to block reverse battery connection while conducting forward current with only 0.75 V drop at 8 A. No external gate drive or control logic is needed. However, designers must verify that power dissipation (IF × VF) remains within thermal limits under worst-case ambient and airflow conditions, using the SK86CH's RθJA = 20°C/W and TJ ≤ 150°C constraints.
SK86CH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Series:
- -
- Package/Case:
- DO-214AB, SMC
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 60 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 500 µA @ 60 V
- Capacitance @ Vr, F:
- -
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
- Operating Temperature - Junction:
- -55°C ~ 150°C
SK86CH FAQ
1.How can I place an order for SK86CH through Aetrix?
Please submit a Request for Quotation (RFQ) for SK86CH 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 SK86CH reliable?
The price and inventory of SK86CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK86CH is usually 5 days.
3.What payment methods are accepted for SK86CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK86CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK86CH?
SK86CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK86CH 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 SK86CH?
For technical support, including SK86CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK86CH requirements.
6.How does Aetrix verify that SK86CH is sourced from the original manufacturer or authorized distributors?
All SK86CH 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 SK86CH meets industry standards.
7.What is the process for return or replacement of SK86CH?
All SK86CH units undergo pre-shipment inspection (PSI). If there is an issue with SK86CH, 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 SK86CH part is unused and in its original packaging.
Return procedure for SK86CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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