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Taiwan Semiconductor Corporation SK520CHR7G
- Part No.:
- SK520CHR7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SK520CHR7G.pdf
- Description:
- DIODE SCHOTTKY 200V 5A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,705
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Product details
Overview
SK520CHR7G from Taiwan Semiconductor is a 5A, 200V Schottky barrier rectifier in DO-214AB (SMC) package, designed for high-efficiency DC/DC conversion and reverse battery protection in automotive lighting systems. It features 0.95V forward voltage at 5A/25°C, 0.3mA reverse leakage at 200V/25°C, 120A surge capability, AEC-Q101 qualification, and halogen-free construction.
For engineers reviewing the SK520CHR7G datasheet, SK520CHR7G pinout, SK520CHR7G application, or SK520CHR7G equivalent, key selection criteria include its 200V VRRM, low VF at high current, thermal resistance (RθJL = 13°C/W), moisture sensitivity level 1 rating, and guard ring–enhanced overvoltage robustness in automotive-grade SMC packaging.
Technical Context
The SK520CHR7G implements a single-die Schottky junction optimized for low conduction loss and fast switching in low-voltage, high-frequency power supplies. Its 200V peak reverse voltage and 120A non-repetitive surge rating support transient-heavy automotive environments.
Thermal performance is defined by RθJL = 13°C/W and RθJA = 53°C/W on a 16mm × 16mm Cu pad PCB. The device operates across –55°C to +150°C junction temperature range and meets JESD201 Class 2 whisker resistance and J-STD-020 Level 1 moisture sensitivity requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - Maximum repetitive reverse blocking voltage; defines safe operating limit in 24V/48V automotive bus protection |
| IF | 5 A - Continuous forward current rating; supports sustained power delivery in compact DC/DC converters |
| VF @ 5A, 25°C | 0.95 V - Low forward drop reduces conduction loss and improves system efficiency above 90% |
| IR @ 200V, 25°C | 0.3 mA - Ultra-low reverse leakage minimizes standby power loss in always-on vehicle modules |
| IFSM | 120 A - Peak surge current handling enables robustness against load dump transients per ISO 7637-2 |
| TJ max | +150 °C - High junction temperature rating allows operation in under-hood environments without derating |
| RθJL | 13 °C/W - Low junction-to-lead thermal resistance enables direct heat transfer to PCB copper, reducing need for heatsinks |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode indicated by band. Molded plastic body meets UL 94V-0; matte tin-plated leads comply with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point under forward bias | Connected to lower-potential side (e.g., ground or return path) in freewheeling or reverse polarity protection configurations |
| Cathode | Current exit point under forward bias; marked by band | Connected to higher-potential rail (e.g., battery input); polarity marking ensures correct orientation during automated placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity, and mechanical shock per stress test requirements |
| Guard ring structure | Enhances edge termination reliability, preventing premature avalanche breakdown at high dv/dt (10,000 V/µs) |
| Halogen-free & RoHS compliant | Meets automotive environmental standards and enables compliance with ELV Directive and OEM material declarations |
| Moisture sensitivity level 1 | Zero bake requirement before reflow; supports standard SMT assembly without dry-pack or floor-life constraints |
| High IFSM/IF ratio (24×) | Enables reliable operation during short-duration load dumps while maintaining small footprint and low thermal mass |
Applications
| Automotive LED Headlamp Driver | 48V Onboard Charger Input Stage |
|---|---|
Use Scenario: High-brightness LED arrays powered from vehicle battery with PWM dimming and EMI filtering. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous buck controller output stage; handles inductor flyback energy. Use Value: 0.95V VF minimizes power loss at 5A continuous current, reducing thermal load on headlamp housing and enabling compact optics design. |
Use Scenario: Front-end rectification in bidirectional 48V–12V DC/DC converter for mild hybrid architectures. IC Role / Device Role / Timing Role: Reverse battery protection diode placed between battery terminal and converter input. Use Value: 200V VRRM withstands load dump spikes up to 120V; AEC-Q101 qualification ensures long-term reliability in vibration-prone engine bay mounting. |
| Start-Stop System Power Rail | Industrial 24V PLC I/O Module |
Use Scenario: Power conditioning for microcontroller and sensor rails during engine cranking events with deep voltage sag. IC Role / Device Role / Timing Role: OR-ing diode in redundant 24V supply path to maintain uninterrupted logic power. Use Value: 120A IFSM sustains conduction during 10ms–100ms cranking dips; low RθJL prevents thermal runaway during repeated start cycles. |
Use Scenario: Reverse polarity protection on field-side 24V DC inputs exposed to wiring errors in factory automation cabinets. IC Role / Device Role / Timing Role: Series-blocking diode on power entry connector to prevent damage from accidental reversed connection. Use Value: 0.3mA IR at 200V eliminates measurable standby drain; DO-214AB footprint allows direct replacement of legacy axial diodes without board redesign. |
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 = 0.45V @ 5A - lower voltage rating, lower VF | Not suitable for 200V reverse protection; limited to ≤48V systems | Select only when VRRM margin < 100V is acceptable and ultra-low VF is prioritized over surge robustness |
| ON Semiconductor SB5200-E3/54 | 200V VRRM, 5A, VF = 0.92V @ 5A, IR = 0.5mA @ 200V - slightly higher leakage, same package | Compatible in footprint and voltage rating but lacks AEC-Q101 qualification | Acceptable for industrial 24V/48V systems where automotive qualification is not mandated |
Compared with VS-50WQ04FN-M3/45 and SB5200-E3/54, the SK520CHR7G uniquely combines 200V blocking, AEC-Q101 compliance, and 0.3mA reverse leakage-making it the only option qualified for safety-critical automotive reverse battery protection where both voltage margin and low standby loss are mandatory.
Availability
SK520CHR7G is available at Aetrix Electronics and suitable for automotive LED lighting, 48V onboard chargers, and industrial PLC I/O modules requiring stable component supply with full traceability and long-lifecycle support.
Supply support for SK520CHR7G 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 automotive, industrial, and consumer markets since 1979.
The SK52CH–SK520CH family was engineered specifically for AEC-Q101-compliant automotive power conversion-emphasizing low VF, high IFSM, and robust thermal performance in SMC packaging for under-hood and lighting applications.
FAQ
What is the maximum junction temperature rating for the SK520CHR7G?
The SK520CHR7G has a maximum junction temperature (TJ) rating of +150°C, verified per absolute maximum ratings table. This allows continuous operation in high-ambient environments such as automotive engine compartments. Derating begins above 25°C ambient per the forward current derating curve in the datasheet, and the device must be mounted on a PCB with adequate copper area to maintain TJ ≤ 150°C under full 5A load. The SK520CHR7G's RθJL of 13°C/W supports this thermal design.
Is the SK520CHR7G suitable for reverse battery protection in 24V automotive systems?
Yes, the SK520CHR7G is explicitly rated for reverse battery protection in 24V systems. With a 200V VRRM, it exceeds ISO 7637-2 Pulse 5a/b load dump requirements (up to 120V), and its AEC-Q101 qualification confirms reliability under automotive temperature, vibration, and humidity stress. Its 0.3mA reverse leakage at 200V/25°C ensures minimal standby current draw, critical for always-on vehicle modules. The SK520CHR7G is used in production headlamp and body control units for this exact function.
Does the SK520CHR7G have a lead-free and halogen-free construction?
Yes, the SK520CHR7G is both RoHS compliant and halogen-free, as confirmed in the "Features" section of the official datasheet. The molding compound meets UL 94V-0 flammability rating, and terminals are matte tin plated per J-STD-002. These attributes satisfy automotive OEM material declarations (e.g., IMDS) and support compliance with EU ELV Directive and China RoHS. The SK520CHR7G carries the "G" suffix in its ordering code to denote green compound.
What is the surge current rating of the SK520CHR7G and how is it tested?
The SK520CHR7G has a non-repetitive peak forward surge current (IFSM) rating of 120A, measured using an 8.3ms single half-sine wave superimposed on rated DC load. This test condition reflects real-world automotive transients like jump-start surges and alternator load dumps. The device's guard ring structure and thermal design (RθJL = 13°C/W) ensure survivability across ≥1000 cycles under these conditions. The SK520CHR7G's surge capability is validated per AEC-Q101 stress test protocols.
How does the forward voltage of the SK520CHR7G compare to lower-voltage variants in the same family?
The SK520CHR7G exhibits a typical forward voltage (VF) of 0.95V at 5A and 25°C-higher than lower-voltage variants (e.g., SK52CH: 0.55V) due to increased barrier height needed for 200V blocking. This trade-off is inherent to Schottky diode physics: higher VRRM requires higher metal-semiconductor work function difference, raising VF. However, the SK520CHR7G maintains best-in-class VF for its 200V class, outperforming many competitors at the same current and temperature.
SK520CHR7G 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
SK520CHR7G FAQ
1.How can I place an order for SK520CHR7G through Aetrix?
Please submit a Request for Quotation (RFQ) for SK520CHR7G 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 SK520CHR7G reliable?
The price and inventory of SK520CHR7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK520CHR7G is usually 5 days.
3.What payment methods are accepted for SK520CHR7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK520CHR7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK520CHR7G?
SK520CHR7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK520CHR7G 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 SK520CHR7G?
For technical support, including SK520CHR7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK520CHR7G requirements.
6.How does Aetrix verify that SK520CHR7G is sourced from the original manufacturer or authorized distributors?
All SK520CHR7G 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 SK520CHR7G meets industry standards.
7.What is the process for return or replacement of SK520CHR7G?
All SK520CHR7G units undergo pre-shipment inspection (PSI). If there is an issue with SK520CHR7G, 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 SK520CHR7G part is unused and in its original packaging.
Return procedure for SK520CHR7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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