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Taiwan Semiconductor Corporation SK520CHM6G
- Part No.:
- SK520CHM6G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SK520CHM6G.pdf
- Description:
- DIODE SCHOTTKY 200V 5A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,366
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Product details
Overview
SK520CHM6G from Taiwan Semiconductor is a 5A, 200V Schottky barrier surface-mount rectifier in DO-214AB (SMC) package, qualified to AEC-Q101, with 0.95V forward voltage at 5A/25°C, 0.3mA reverse current at 200V/25°C, and 120A surge capability - used in automotive car lighting and reverse battery protection circuits.
For engineers reviewing the SK520CHM6G datasheet, SK520CHM6G pinout, SK520CHM6G application, or SK520CHM6G equivalent, key selection factors include its 200V VRRM, low VF for high-efficiency DC/DC conversion, AEC-Q101 qualification for automotive environments, and DO-214AB thermal performance (RθJL = 13°C/W).
Technical Context
This discrete Schottky diode operates as a unidirectional power rectifier with single-die configuration, optimized for low-loss freewheeling and reverse polarity protection. Its guard ring structure enables robust overvoltage tolerance, and JESD201 Class 2 whisker resistance supports long-term reliability in automotive PCB assemblies.
Thermal design relies on junction-to-lead resistance of 13°C/W when mounted on a 16mm × 16mm Cu pad, enabling sustained 5A conduction at TJ ≤ 150°C. The device exhibits 10,000 V/µs dV/dt rating and moisture sensitivity level 1 per J-STD-020 - eliminating bake requirements prior to reflow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - maximum repetitive reverse voltage; defines safe operating limit in 24V/48V automotive systems with transient spikes. |
| IF | 5 A - continuous forward current; supports compact DC/DC converter output stages without forced air cooling. |
| VF @ 5A, 25°C | 0.95 V - low forward drop reduces conduction loss by ~30% vs. comparable silicon diodes, improving system efficiency. |
| IR @ 200V, 25°C | 0.3 mA - minimal leakage enables stable reverse-battery protection without parasitic drain in always-on vehicle modules. |
| IFSM | 120 A - peak surge rating for 8.3ms half-sine wave; withstands load dump transients per ISO 7637-2. |
| TJ max | 150 °C - maximum junction temperature; allows operation in under-hood environments with ambient up to 125°C. |
| RθJL | 13 °C/W - junction-to-lead thermal resistance; enables direct heat transfer to PCB copper, simplifying thermal layout. |
Pinout & Package
Package: DO-214AB (SMC), molded plastic case with matte tin-plated leads, cathode indicated by band, weight ≈ 0.210 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or return path) in reverse-battery protection; accepts 5A continuous flow. |
| Cathode | Forward current exit point / polarity indicator | Marked by band; connects to positive rail in freewheeling applications; blocks 200V reverse voltage during off-state. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for under-hood deployment. |
| Guard ring structure | Enhances edge termination robustness against voltage overstress, preventing premature avalanche breakdown at rated VRRM. |
| Moisture sensitivity level 1 | No floor life limitation or pre-bake required before SMT reflow - reduces manufacturing overhead and handling risk. |
| Halogen-free & RoHS compliant | Meets EU Directive 2011/65/EU and JEDEC JS709C; supports eco-design requirements for global OEM supply chains. |
Applications
| Automotive Reverse Battery Protection | DC/DC Converter Output Rectification |
|---|---|
Use Scenario: Prevents damage to vehicle ECUs when battery terminals are accidentally reversed during service or jump-starting. IC Role / Device Role / Timing Role: Discrete Schottky rectifier placed in series with main power input; conducts only during correct polarity. Use Value: 0.3mA leakage at 200V ensures negligible standby current draw; 120A IFSM survives cranking surges without degradation. |
Use Scenario: High-frequency rectification in synchronous or non-synchronous buck converters powering infotainment or ADAS subsystems. IC Role / Device Role / Timing Role: Freewheeling diode providing low-loss current path during high-side switch off-time. Use Value: 0.95V VF minimizes conduction loss at 5A, directly improving converter efficiency over silicon alternatives. |
| Automotive LED Lighting Drivers | Industrial 48V Power Distribution |
Use Scenario: Overvoltage clamping and reverse polarity safeguard in constant-current LED driver modules for headlamps and DRLs. IC Role / Device Role / Timing Role: Protection diode across input rails; absorbs load dump energy and blocks reverse connection. Use Value: AEC-Q101 qualification and 150°C TJmax ensure stable operation in sealed, thermally constrained lamp housings. |
Use Scenario: Input rectification and reverse feed blocking in industrial 48V server PSUs or telecom power shelves. IC Role / Device Role / Timing Role: Primary input-stage diode handling bulk current and transient suppression. Use Value: DO-214AB package provides 13°C/W RθJL for passive thermal management on standard FR4 PCBs without heatsinks. |
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-50WQ04FN-M3/45 | 45V VRRM, 5A, VF = 0.49V @ 5A - lower voltage rating but lower forward drop. | Not suitable for 200V reverse-battery or load-dump scenarios; limited to ≤45V systems. | Select only if system VR < 40V and ultra-low VF is prioritized over surge robustness. |
| ON Semiconductor SB5200-E3/54 | 200V VRRM, 5A, VF = 0.92V @ 5A, RθJA = 50°C/W - similar electrical specs but higher thermal resistance. | Requires larger copper area or airflow for same 5A derating; not AEC-Q101 qualified. | Acceptable for industrial non-automotive use where qualification and thermal margin are less critical. |
Compared with VS-50WQ04FN-M3/45 and SB5200-E3/54, SK520CHM6G uniquely combines 200V rating, AEC-Q101 compliance, and 13°C/W RθJL - making it the only option qualified for automotive reverse-battery protection with minimal PCB thermal design overhead.
Availability
SK520CHM6G is available at Aetrix Electronics and suitable for automotive reverse battery protection, DC/DC converter output rectification, and industrial 48V power distribution requiring stable component supply and long-lifecycle support.
Supply support for SK520CHM6G 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 consumer markets since 1979.
The SK52CH–SK520CH family was designed specifically for high-reliability automotive power rectification, emphasizing AEC-Q101 compliance, low VF, and robust surge handling in surface-mount packaging.
FAQ
What is the maximum junction temperature rating for SK520CHM6G?
The SK520CHM6G 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 where ambient temperatures reach 125°C, provided thermal design maintains junction temperature within this limit using the specified 16mm × 16mm Cu pad.
Is SK520CHM6G AEC-Q101 qualified, and what tests does that include?
Yes, SK520CHM6G is AEC-Q101 qualified per the Taiwan Semiconductor documentation. Qualification includes stress tests such as high-temperature reverse bias (HTRB), temperature cycling, highly accelerated stress test (HAST), and electrostatic discharge (ESD) per MM and CDM models - confirming suitability for automotive electronic control units and lighting modules.
What is the forward voltage of SK520CHM6G at 5A and 125°C?
The forward voltage of SK520CHM6G is not specified at 5A and 125°C in the available Taiwan Semiconductor datasheet. The datasheet provides VF = 0.95V only at 5A and 25°C. At elevated temperatures, VF decreases slightly due to Schottky physics, but no typ/max value is published for 125°C - designers should refer to Fig.10 (Typical Forward Characteristics) for interpolation.
Does SK520CHM6G have a halogen-free and RoHS-compliant construction?
Yes, SK520CHM6G is both halogen-free and RoHS compliant, as explicitly stated in the "Features" section of the Taiwan Semiconductor datasheet. The molding compound meets UL 94V-0 flammability rating, and terminal plating uses matte tin per J-STD-002 - satisfying environmental compliance requirements for global automotive and industrial deployments.
What is the moisture sensitivity level (MSL) of SK520CHM6G, and does it require baking before reflow?
SK520CHM6G has moisture sensitivity level (MSL) 1 per J-STD-020, meaning it has unlimited floor life and does not require dry pack storage or pre-reflow baking. This eliminates process steps and handling risks in automated SMT assembly lines - a key advantage for high-volume automotive electronics manufacturing.
SK520CHM6G 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):
- 200 V
- Current - Average Rectified (Io):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 950 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 300 µA @ 200 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
SK520CHM6G FAQ
1.How can I place an order for SK520CHM6G through Aetrix?
Please submit a Request for Quotation (RFQ) for SK520CHM6G 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 SK520CHM6G reliable?
The price and inventory of SK520CHM6G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK520CHM6G is usually 5 days.
3.What payment methods are accepted for SK520CHM6G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK520CHM6G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK520CHM6G?
SK520CHM6G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK520CHM6G 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 SK520CHM6G?
For technical support, including SK520CHM6G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK520CHM6G requirements.
6.How does Aetrix verify that SK520CHM6G is sourced from the original manufacturer or authorized distributors?
All SK520CHM6G 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 SK520CHM6G meets industry standards.
7.What is the process for return or replacement of SK520CHM6G?
All SK520CHM6G units undergo pre-shipment inspection (PSI). If there is an issue with SK520CHM6G, 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 SK520CHM6G part is unused and in its original packaging.
Return procedure for SK520CHM6G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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