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Taiwan Semiconductor Corporation SK56CHM6G
- Part No.:
- SK56CHM6G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SK56CHM6G.pdf
- Description:
- DIODE SCHOTTKY 60V 5A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,955
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Product details
Overview
SK56CHM6G from Taiwan Semiconductor is a 5A, 60V AEC-Q101-qualified Schottky barrier rectifier in DO-214AB (SMC) package, featuring low forward voltage (0.75 V at 5 A, 25°C), high surge current capability (120 A), and guard ring overvoltage protection. It serves as a freewheeling or reverse battery protection diode in automotive DC/DC converters and car lighting systems.
For engineers reviewing the SK56CHM6G datasheet, SK56CHM6G pinout, SK56CHM6G application, or SK56CHM6G equivalent, key selection criteria include its 60 V repetitive peak reverse voltage, 150°C maximum junction temperature, moisture sensitivity level 1 rating, and RoHS/halogen-free compliance for automotive-grade reliability.
Technical Context
The SK56CHM6G is a single-die Schottky rectifier optimized for low-loss, high-frequency operation in automotive power conversion. Its 60 V VRRM, 5 A continuous forward current, and 120 A non-repetitive surge rating support robust transient handling in 12 V/24 V vehicle systems.
Thermal performance is defined by RθJL = 13°C/W and RθJA = 53°C/W on a 16 mm × 16 mm PCB copper pad. The device uses matte tin-plated leads compliant with J-STD-002 and meets JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 60 V - Maximum repetitive reverse blocking voltage; defines safe operating range in 24 V automotive systems with load dump transients. |
| IF | 5 A - Continuous forward current rating at TA = 25°C; supports sustained conduction in compact DC/DC output stages. |
| VF | 0.75 V @ 5 A, 25°C - Low forward drop reduces conduction loss and improves system efficiency vs. standard PN diodes. |
| IFSM | 120 A - Peak surge current (8.3 ms half-sine); enables survival during cold-crank or jump-start events. |
| TJ max | +150°C - Maximum junction temperature; allows operation in under-hood environments without derating at full current. |
| RθJL | 13°C/W - Junction-to-lead thermal resistance; enables direct heat transfer to PCB copper pour for passive thermal management. |
| MSL | Level 1 - No floor life limitation; supports standard SMT reflow without baking prior to assembly. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode indicated by band. Dimensions: 7.75 mm × 6.25 mm × 2.45 mm (L × W × H), with 16 mm × 16 mm recommended Cu pad for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point under forward bias | Connected to lower-potential node (e.g., switch node in buck converter); requires low-inductance trace routing. |
| Cathode | Current exit point under forward bias | Marked by band; ties to output rail or ground return path; critical for reverse polarity protection integrity. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity, and mechanical shock per stress test requirements. |
| Guard ring structure | Enhances edge termination robustness against voltage overstress and localized field crowding in high-dV/dt applications. |
| Low IR at 125°C | ≤10 mA reverse leakage at 60 V and 125°C ensures stable blocking in hot under-hood conditions. |
| Halogen-free & RoHS | Complies with EU Directive 2011/65/EU and IPC-1752A; supports green manufacturing and end-of-life recycling. |
| High dV/dt rating | 10,000 V/µs critical rate of rise tolerance prevents false turn-on in fast-switching SMPS topologies. |
Applications
| Automotive DC/DC Converters | Reverse Battery Protection |
|---|---|
Use Scenario: Step-down conversion from 12 V or 24 V battery to 3.3 V/5 V rails for infotainment and ADAS modules. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous or asynchronous buck regulators. Use Value: 0.75 V VF minimizes conduction loss and thermal rise, enabling higher efficiency than 1N5822-class diodes. | Use Scenario: Preventing damage when battery terminals are accidentally reversed during service or jump-start. IC Role / Device Role / Timing Role: Series-blocking element placed between battery input and downstream power distribution. Use Value: 60 V VRRM withstands normal transients while allowing low-loss forward conduction during correct polarity operation. |
| Car Lighting Systems | Industrial 24 V Power Supplies |
Use Scenario: LED headlamp drivers requiring high-reliability rectification in thermally constrained housings. IC Role / Device Role / Timing Role: Output rectifier in constant-current LED driver flyback or buck-boost stages. Use Value: MSL Level 1 and +150°C TJ max ensure long-term stability under cyclic thermal stress near heat-generating LEDs. | Use Scenario: DIN-rail mounted 24 V industrial PSUs powering PLC I/O modules and sensors. IC Role / Device Role / Timing Role: Input rectifier or OR-ing diode in redundant supply configurations. Use Value: 120 A IFSM handles inrush currents from large bulk capacitors without degradation. |
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-50SQ060 | Same 60 V VRRM, 5 A IF, but TO-277 package (smaller footprint, no leadframe); slightly higher VF (0.79 V). | Limited to space-constrained designs where SMC's thermal mass is not required. | Prefer SK56CHM6G when board-level thermal dissipation via leadframe is prioritized. |
| ON Semiconductor SB560 | 60 V VRRM, 5 A IF, DO-214AA (SMA) package; lower IFSM (100 A) and higher RθJA (65°C/W). | Suitable only for lower-duty-cycle or ambient-cooled applications. | Choose SK56CHM6G for automotive-grade surge immunity and thermal performance in demanding layouts. |
Compared with VS-50SQ060 and SB560, the SK56CHM6G delivers superior thermal resistance (RθJL = 13°C/W), AEC-Q101 qualification, and tighter VF spec-making it the preferred choice for thermally stressed, safety-critical automotive power stages.
Availability
SK56CHM6G is available at Aetrix Electronics and suitable for automotive DC/DC converters, reverse battery protection circuits, and car lighting systems requiring stable component supply across extended production lifecycles.
Supply support for SK56CHM6G 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, specializing in power devices, rectifiers, and protection components.
The SK52CH–SK520CH family was designed specifically for AEC-Q101-compliant automotive power conversion, emphasizing low VF, high surge robustness, and thermal reliability in under-hood environments.
FAQ
What is the maximum junction temperature rating for SK56CHM6G?
The SK56CHM6G has a maximum junction temperature (TJ) of +150°C, verified per absolute maximum ratings in the official Taiwan Semiconductor datasheet. This rating enables reliable operation in high-ambient automotive environments such as engine control units and headlamp modules, provided thermal design adheres to the specified RθJL = 13°C/W and recommended PCB copper area.
Is SK56CHM6G qualified for automotive applications?
Yes, the SK56CHM6G is AEC-Q101 qualified, as explicitly stated in the "Features" section of the Taiwan Semiconductor SK52CH–SK520CH datasheet. This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and mechanical shock-confirming suitability for automotive power systems including body electronics and lighting.
What does the "M6G" suffix indicate in SK56CHM6G?
The "M6G" suffix in SK56CHM6G denotes Taiwan Semiconductor's internal packaging and environmental code: "M" indicates DO-214AB (SMC) package, "6" specifies tape-and-reel packing (3,000 pcs/reel), and "G" confirms RoHS-compliant, halogen-free construction per J-STD-020 MSL Level 1. This matches the ordering information table in the official datasheet.
What is the forward voltage of SK56CHM6G at 5 A and 125°C?
Per the Electrical Specifications table in the Taiwan Semiconductor datasheet, the SK56CHM6G exhibits a maximum forward voltage (VF) of 0.75 V at IF = 5 A and TJ = 25°C. At TJ = 125°C, VF decreases slightly due to Schottky physics; however, the datasheet does not specify a guaranteed max value at 125°C-only that VF remains ≤0.75 V under those conditions for the SK55CH/SK56CH group.
Does SK56CHM6G have a guard ring structure?
Yes, the SK56CHM6G incorporates a guard ring for overvoltage protection, as confirmed in the "Features" list of the official Taiwan Semiconductor SK52CH–SK520CH datasheet. This structure enhances edge termination stability and improves ruggedness against transient voltage spikes common in automotive 12 V/24 V systems.
SK56CHM6G 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):
- 60 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 750 mV @ 5 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
SK56CHM6G FAQ
1.How can I place an order for SK56CHM6G through Aetrix?
Please submit a Request for Quotation (RFQ) for SK56CHM6G 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 SK56CHM6G reliable?
The price and inventory of SK56CHM6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK56CHM6G is usually 5 days.
3.What payment methods are accepted for SK56CHM6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK56CHM6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK56CHM6G?
SK56CHM6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK56CHM6G 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 SK56CHM6G?
For technical support, including SK56CHM6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK56CHM6G requirements.
6.How does Aetrix verify that SK56CHM6G is sourced from the original manufacturer or authorized distributors?
All SK56CHM6G 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 SK56CHM6G meets industry standards.
7.What is the process for return or replacement of SK56CHM6G?
All SK56CHM6G units undergo pre-shipment inspection (PSI). If there is an issue with SK56CHM6G, 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 SK56CHM6G part is unused and in its original packaging.
Return procedure for SK56CHM6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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