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Taiwan Semiconductor Corporation SK52CHM6G
- Part No.:
- SK52CHM6G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SK52CHM6G.pdf
- Description:
- DIODE SCHOTTKY 20V 5A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,704
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Product details
Overview
SK52CHM6G from Taiwan Semiconductor is a 5A, 20V AEC-Q101-qualified Schottky barrier rectifier in DO-214AB (SMC) package, optimized for low forward voltage drop (0.55 V at 5 A, 25°C), high surge current capability (120 A), and reverse battery protection in automotive lighting systems.
For engineers reviewing the SK52CHM6G datasheet, SK52CHM6G pinout, SK52CHM6G application, or SK52CHM6G equivalent, key selection criteria include its 20 V repetitive peak reverse voltage, 150°C maximum junction temperature, moisture sensitivity level 1 rating, and guard ring–enhanced overvoltage robustness in surface-mount DC/DC converter designs.
Technical Context
This discrete Schottky diode operates as a unidirectional power rectifier with single-die configuration and cathode-band polarity indication. Its low VF enables high efficiency in low-voltage, high-frequency switching applications, while the DO-214AB thermal design supports 13°C/W junction-to-lead resistance on standard PCB mounting.
The device meets JESD201 Class 2 whisker resistance and UL 94V-0 flammability requirements. It delivers 10,000 V/µs critical dV/dt rating and maintains ≤0.5 mA reverse leakage at 25°C under rated 20 V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 20 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in reverse-biased freewheeling or reverse-polarity protection circuits. |
| IF | 5 A - Continuous average forward current; supports sustained conduction in 12 V automotive DC/DC stages without derating below 100°C ambient. |
| VF | 0.55 V @ 5 A, 25°C - Low forward voltage minimizes conduction loss and thermal rise in high-current, space-constrained layouts. |
| IFSM | 120 A - Non-repetitive surge rating for 8.3 ms half-sine; withstands load dump transients in vehicle electrical systems. |
| TJ max | 150°C - Maximum junction temperature; enables operation in under-hood environments with adequate heatsinking. |
| RθJL | 13°C/W - Junction-to-lead thermal resistance; allows direct thermal path to PCB copper pad for passive cooling in SMC footprint. |
Pinout & Package
Package: DO-214AB (SMC), surface-mount plastic case with matte tin-plated leads, cathode indicated by molded band. Weight: 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry terminal | Connected to lower-potential side (e.g., ground or return path) in reverse-battery protection; accepts full 5 A continuous current. |
| Cathode | Forward current exit terminal | Marked by visible band; connects to positive rail or switch node; sustains 20 V reverse bias and blocks >100× rated current surges. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing-enables use in safety-critical lighting and body control modules. |
| Guard ring structure | Enhances edge termination robustness against transient overvoltage events, improving long-term stability in noisy 12 V vehicle networks. |
| Moisture sensitivity level 1 | Eliminates bake preconditioning prior to reflow; supports standard automated assembly without floor-life restrictions. |
| Halogen-free & RoHS compliant | Meets global environmental compliance mandates for automotive OEM supply chains without compromising thermal or electrical performance. |
Applications
| Reverse Battery Protection | Automotive LED Lighting |
|---|---|
Use Scenario: Prevents damage to vehicle ECUs during incorrect battery connection in service or jump-start conditions. IC Role / Device Role / Timing Role: Unidirectional blocking element placed in series with main power input rail. Use Value: Withstands 120 A surge and blocks 20 V reverse polarity without latch-up or catastrophic failure. |
Use Scenario: Powers headlamp or DRL modules supplied from 12 V battery with PWM dimming and thermal management. IC Role / Device Role / Timing Role: Freewheeling diode across inductive LED driver switch node. Use Value: 0.55 V forward drop reduces power loss by >30% vs. standard PN diodes, lowering heatsink requirements. |
| DC/DC Converter Output Rectification | Low-Voltage Freewheeling |
Use Scenario: Secondary-side rectification in buck-derived 5 V or 3.3 V point-of-load converters for infotainment systems. IC Role / Device Role / Timing Role: High-frequency synchronous rectifier replacement in non-isolated topologies. Use Value: 10,000 V/µs dV/dt rating ensures stable commutation during fast-switching transitions up to 1 MHz. |
Use Scenario: Energy recirculation path for solenoid drivers, fuel pump controllers, and HVAC actuators. IC Role / Device Role / Timing Role: Clamp diode across inductive load to suppress flyback voltage spikes. Use Value: Guard ring and 150°C TJ rating maintain reliability during repeated 120 A surge events in cyclic duty applications. |
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-50WQ03FN-M3/45 | 30 V VRRM, 0.45 V VF @ 5 A, same DO-214AB package, but not AEC-Q101 qualified. | Acceptable in industrial DC/DC where automotive qualification is not mandated; lower VF improves efficiency marginally. | Select when AEC-Q101 is unnecessary and sub-0.45 V forward drop is prioritized over surge robustness. |
| ON Semiconductor SB520-E3/54 | 20 V VRRM, 0.57 V VF @ 5 A, DO-214AA (SMB) package-smaller footprint but higher RθJA (65°C/W). | Suitable for space-constrained consumer power supplies; less thermally robust than SK52CHM6G in sustained 5 A operation. | Choose only if board area is critical and thermal margin ≥25°C can be guaranteed via layout enhancements. |
Compared with VS-50WQ03FN-M3/45 and SB520-E3/54, SK52CHM6G uniquely combines AEC-Q101 compliance, 20 V rating with lowest VF in its voltage class, and DO-214AB's superior thermal performance-making it the preferred choice for automotive front-end power protection where reliability and thermal headroom are non-negotiable.
Availability
SK52CHM6G is available at Aetrix Electronics and suitable for reverse battery protection, automotive LED lighting, and DC/DC converter output rectification requiring stable component supply across automotive Tier-1 production programs.
Supply support for SK52CHM6G 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 automotive, industrial, and computing markets since 1979.
The SK52CHM6G belongs to TSC's AEC-Q101-qualified Schottky rectifier family, engineered specifically for high-reliability 12 V vehicle subsystems demanding low-loss, high-surge, and thermally resilient power handling.
FAQ
What is the maximum junction temperature rating for SK52CHM6G?
The SK52CHM6G 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 under-hood automotive environments when mounted on a 16 mm × 16 mm copper pad, leveraging its 13°C/W junction-to-lead thermal resistance. The SK52CHM6G must not exceed this limit during steady-state or transient conditions to ensure long-term parametric stability.
Is SK52CHM6G suitable for reverse battery protection in 12 V automotive systems?
Yes, SK52CHM6G is explicitly designed for reverse battery protection in 12 V automotive systems. Its 20 V VRRM, 120 A IFSM, AEC-Q101 qualification, and guard ring structure provide validated robustness against polarity reversal events and load dump transients. The SK52CHM6G's 0.55 V forward voltage also minimizes power loss and heat generation during normal forward conduction in such applications.
Does SK52CHM6G have a moisture sensitivity level (MSL) rating, and what does it mean for assembly?
SK52CHM6G carries a moisture sensitivity level (MSL) rating of Level 1 per J-STD-020, meaning it is not sensitive to moisture-induced damage during reflow soldering. No dry-packaging, baking, or floor-life tracking is required before assembly. This simplifies manufacturing logistics and eliminates yield risk from popcorning, making SK52CHM6G ideal for high-volume automated placement in automotive electronics production lines.
What is the forward voltage (VF) of SK52CHM6G under typical operating conditions?
The forward voltage of SK52CHM6G is 0.55 V at 5 A forward current and 25°C junction temperature, as specified in the Electrical Specifications table of the Taiwan Semiconductor datasheet. This value is measured using a 0.3 ms pulse width test condition. At elevated temperatures (e.g., 125°C), VF decreases slightly, supporting stable conduction in thermally demanding automotive environments where the SK52CHM6G is commonly deployed.
How does the DO-214AB (SMC) package of SK52CHM6G compare thermally to smaller packages like DO-214AA (SMB)?
The DO-214AB (SMC) package used by SK52CHM6G provides significantly better thermal performance than DO-214AA (SMB): RθJL is 13°C/W versus ~25°C/W for SMB, and RθJA is 53°C/W on a 16 mm × 16 mm Cu pad versus ~65°C/W for SMB. This allows the SK52CHM6G to sustain full 5 A continuous current with lower junction temperature rise, making it more suitable for high-power-density automotive applications where thermal margin is critical.
SK52CHM6G 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):
- 20 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 @ 20 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
SK52CHM6G FAQ
1.How can I place an order for SK52CHM6G through Aetrix?
Please submit a Request for Quotation (RFQ) for SK52CHM6G 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 SK52CHM6G reliable?
The price and inventory of SK52CHM6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK52CHM6G is usually 5 days.
3.What payment methods are accepted for SK52CHM6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK52CHM6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK52CHM6G?
SK52CHM6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK52CHM6G 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 SK52CHM6G?
For technical support, including SK52CHM6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK52CHM6G requirements.
6.How does Aetrix verify that SK52CHM6G is sourced from the original manufacturer or authorized distributors?
All SK52CHM6G 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 SK52CHM6G meets industry standards.
7.What is the process for return or replacement of SK52CHM6G?
All SK52CHM6G units undergo pre-shipment inspection (PSI). If there is an issue with SK52CHM6G, 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 SK52CHM6G part is unused and in its original packaging.
Return procedure for SK52CHM6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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