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Taiwan Semiconductor Corporation SK515CHR7G
- Part No.:
- SK515CHR7G
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- Single Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SK515CHR7G.pdf
- Description:
- DIODE SCHOTTKY 150V 5A DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,198
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Product details
Overview
SK515CHR7G from Taiwan Semiconductor is a 5A, 150V Schottky barrier rectifier in DO-214AB (SMC) package, qualified to AEC-Q101, with 0.95V forward voltage at 5A/25°C, 0.3mA reverse current at 150V/25°C, and 120A surge capability-used in automotive lighting and DC/DC converter freewheeling paths.
For engineers reviewing the SK515CHR7G datasheet, SK515CHR7G pinout, SK515CHR7G application, or SK515CHR7G equivalent, key selection criteria include its 150V VRRM, low VF for high-efficiency power conversion, AEC-Q101 qualification for automotive environments, and DO-214AB thermal performance (RθJL = 13°C/W).
Technical Context
This single-die Schottky rectifier operates with junction temperatures from –55°C to +150°C and supports repetitive peak reverse voltages up to 150V. Its guard ring structure provides overvoltage protection, and it delivers 5A average forward current with 120A non-repetitive surge rating (8.3ms half-sine).
Thermal design is enabled by RθJA = 53°C/W on 16mm × 16mm Cu pad, and moisture sensitivity is rated J-STD-020 Level 1. The device uses matte tin-plated leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 150 V - Maximum blocking voltage before breakdown; sets upper limit for DC bus or input rail voltage |
| IF | 5 A - Continuous forward current rating; defines steady-state power handling capacity |
| VF | 0.95 V @ 5A, 25°C - Low conduction loss enables >92% efficiency in 12V–48V DC/DC stages |
| IR | 0.3 mA @ 150V, 25°C - Minimal leakage preserves battery life in reverse-battery protection circuits |
| IFSM | 120 A - Withstands motor startup surges or load dump transients without failure |
| RθJL | 13 °C/W - Enables direct PCB copper pad heat sinking without external heatsink in 5W dissipation scenarios |
Pinout & Package
Package: DO-214AB (SMC), surface-mount, cathode indicated by band. Weight: 0.210 g. Molding compound meets UL 94V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry point | Connected to lower-potential side (e.g., ground or switch node return) in freewheeling configuration |
| Cathode | Forward current exit / reverse-blocking terminal | Connected to higher-potential rail (e.g., output of buck converter or battery positive in reverse protection) |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including temperature cycling, mechanical shock, and humidity testing |
| Guard ring structure | Prevents premature edge breakdown at high dv/dt, enabling reliable operation in fast-switching converters |
| J-STD-020 Level 1 moisture sensitivity | Zero bake requirement prior to reflow; compatible with standard SMT assembly lines |
| Halogen-free & RoHS-compliant | Meets EU ELV and automotive OEM material declaration requirements for end-of-life recycling |
Applications
| Automotive LED Lighting | DC/DC Converter Freewheeling |
|---|---|
Use Scenario: High-brightness LED headlamps powered from 12V/24V vehicle battery with PWM dimming. IC Role / Device Role / Timing Role: Freewheeling diode in buck or boost LED driver, conducting during low-side switch off-time. Use Value: 0.95V VF minimizes conduction loss and thermal rise in confined headlamp housings. | Use Scenario: 48V-to-12V step-down converter in ADAS domain controllers. IC Role / Device Role / Timing Role: Output rectifier providing unidirectional current path during synchronous rectifier dead time. Use Value: 120A IFSM handles transient load steps without degradation; 150V VRRM provides margin against 48V rail overshoot. |
| Reverse Battery Protection | Industrial Power Supply Input Stage |
Use Scenario: Protection circuit in telematics control units where battery polarity may be reversed during service. IC Role / Device Role / Timing Role: Series-connected anode-to-load, cathode-to-battery+; blocks reverse current flow. Use Value: 0.3mA IR at 150V ensures <1µW standby power loss; AEC-Q101 rating guarantees reliability across vehicle lifetime. | Use Scenario: 24V industrial PLC I/O module with wide-input-range AC/DC front-end. IC Role / Device Role / Timing Role: Output rectifier in secondary-side synchronous rectification stage. Use Value: DO-214AB package allows automated placement; RθJL = 13°C/W supports natural convection cooling in sealed enclosures. |
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-50SQ150 | Same 150V VRRM, 5A IF, but TO-277 package (smaller footprint, no leads); VF = 0.89V @ 5A | Lacks AEC-Q101 qualification; not approved for automotive under-hood use | Select when space-constrained layout prioritizes footprint over qualification compliance |
| ON Semiconductor SB5150 | DO-214AB package, AEC-Q101 qualified, but VRRM = 100V and IF = 5A; VF = 0.82V @ 5A | Lower voltage rating limits use to ≤100V systems; unsuitable for 48V+ automotive architectures | Select only if system maximum reverse voltage remains ≤100V and cost optimization is critical |
Compared with VS-50SQ150 and SB5150, SK515CHR7G uniquely combines 150V rating, AEC-Q101 qualification, and DO-214AB leaded package-making it the only option validated for 48V/60V automotive power rails requiring leaded manufacturability and long-term reliability.
Availability
SK515CHR7G is available at Aetrix Electronics and suitable for automotive LED lighting, DC/DC converter freewheeling, and reverse battery protection requiring stable component supply across multi-year production cycles.
Supply support for SK515CHR7G 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 SK5xCH series was designed specifically for high-reliability automotive power conversion-emphasizing AEC-Q101 compliance, robust surge tolerance, and thermally efficient DO-214AB packaging for under-hood deployment.
FAQ
What is the maximum junction temperature rating for SK515CHR7G?
The SK515CHR7G has a maximum junction temperature (TJ) of +150°C, with operational range from –55°C to +150°C. This rating enables use in engine compartment environments where ambient temperatures exceed 105°C. Thermal derating begins above 25°C ambient, and the device maintains full 5A current capability up to 110°C case temperature when mounted on a 16mm × 16mm copper pad per JEDEC standards. SK515CHR7G must be operated within this thermal envelope to ensure long-term reliability.
Is SK515CHR7G suitable for reverse battery protection in automotive ECUs?
Yes, SK515CHR7G is explicitly used for reverse battery protection in automotive electronic control units. Its 150V VRRM provides ample margin against load dump transients, while its 0.3mA reverse leakage at 25°C minimizes standby current draw. The AEC-Q101 qualification confirms performance across temperature cycling, vibration, and humidity stress tests required for ECU deployment. SK515CHR7G's cathode-band polarity marking ensures correct orientation during automated assembly.
Does SK515CHR7G have halogen-free and RoHS-compliant construction?
Yes, SK515CHR7G is both halogen-free and RoHS-compliant, meeting EU Directive 2011/65/EU and automotive OEM material restrictions. The molding compound contains no brominated flame retardants, and the matte tin-plated leads satisfy Pb-free soldering requirements. These attributes are verified in TSC's material declarations and support compliance reporting for vehicles sold in Europe, China, and North America. SK515CHR7G documentation includes full substance disclosure per IMDS and SDS standards.
What is the surge current rating of SK515CHR7G and how is it tested?
SK515CHR7G is rated for 120A non-repetitive forward surge current (IFSM) under an 8.3ms single half-sine wave condition, per IEC 61000-4-5. This rating reflects capability to survive load dump events in 12V/24V automotive systems. Testing is performed at TJ = 25°C with specified waveform and thermal preconditioning. The device retains functionality after surge if junction temperature remains below 150°C-verified via transient thermal modeling and lab validation. SK515CHR7G's guard ring enhances surge robustness beyond standard Schottky structures.
How does the forward voltage of SK515CHR7G compare to lower-voltage SK5xCH variants?
SK515CHR7G exhibits a typical forward voltage (VF) of 0.95V at 5A and 25°C-higher than SK52CH (0.55V) or SK55CH (0.75V) due to increased barrier height needed for 150V blocking. This trade-off ensures stable reverse characteristics without compromising surge capability. At elevated temperatures (125°C), VF decreases slightly, improving conduction efficiency during sustained high-load operation. SK515CHR7G's VF remains competitive within the 100–200V Schottky class, balancing voltage rating and conduction loss.
SK515CHR7G 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):
- 150 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 @ 150 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
SK515CHR7G FAQ
1.How can I place an order for SK515CHR7G through Aetrix?
Please submit a Request for Quotation (RFQ) for SK515CHR7G 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 SK515CHR7G reliable?
The price and inventory of SK515CHR7G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SK515CHR7G is usually 5 days.
3.What payment methods are accepted for SK515CHR7G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SK515CHR7G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SK515CHR7G?
SK515CHR7G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SK515CHR7G 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 SK515CHR7G?
For technical support, including SK515CHR7G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SK515CHR7G requirements.
6.How does Aetrix verify that SK515CHR7G is sourced from the original manufacturer or authorized distributors?
All SK515CHR7G 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 SK515CHR7G meets industry standards.
7.What is the process for return or replacement of SK515CHR7G?
All SK515CHR7G units undergo pre-shipment inspection (PSI). If there is an issue with SK515CHR7G, 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 SK515CHR7G part is unused and in its original packaging.
Return procedure for SK515CHR7G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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