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onsemi FSV15120V
- Part No.:
- FSV15120V
- Manufacturer:
- onsemi
- Category:
- Single Diodes
- Package:
- TO-277, 3-PowerDFN
- Datasheet:
-
FSV15120V.pdf
- Description:
- DIODE SCHOTTKY 120V 15A TO277-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,986
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Product details
Overview
FSV15120V from onsemi is an ultra-low forward voltage Schottky rectifier rated for 15 A average forward current and 120 V peak repetitive reverse voltage, fabricated using trench Schottky technology and packaged in TO-277 (Case 340BQ) with a 1.1 mm profile. It delivers VF = 0.741 V (typ) at 15 A and IR = 7.7 mA (typ) at 120 V, enabling high-efficiency DC/DC conversion in compact power supplies.
For engineers reviewing the FSV15120V datasheet, pinout, applications, or equivalent options, key selection considerations include its low thermal resistance (ΨJL = 12 °C/W to anode), ultra-thin height, Pb-free/halogen-free compliance, and non-DAP-only construction - critical for space-constrained, thermally demanding industrial and automotive power designs.
Technical Context
This device is a dual-anode, single-cathode Schottky rectifier configured for parallel anode conduction paths to reduce forward voltage drop and improve current sharing. Its trench Schottky architecture enables lower VF and higher switching speed than planar Schottky diodes, while maintaining stable reverse leakage up to 150 °C junction temperature.
The TO-277 package features three terminals (Anode 1, Anode 2, Cathode) mounted on a thermally optimized FR4 PCB land pattern, supporting efficient heat dissipation via both anode leads (ΨJL = 12–15 °C/W) and cathode (ΨJL = 5–6 °C/W), making it suitable for high-density synchronous rectification and OR-ing applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 120 V - supports input stages handling 100 VAC-derived rails or 48 V bus systems with safety margin |
| IF(AV) | 15 A - continuous output capability for mid-power SMPS and DC/DC converters |
| VF @ 15 A | 0.741 V (typ) - reduces conduction loss by ~30% vs. standard Schottky diodes, improving efficiency |
| IR @ 120 V | 7.7 mA (typ) - low leakage preserves standby power in always-on systems |
| TJ Range | −55 to +150 °C - enables operation in under-hood automotive or industrial ambient environments |
| Package | TO-277 (Case 340BQ), 5.91 × 4.44 × 1.10 mm - ultra-low profile for height-sensitive layouts |
| RJA (max) | 40 °C/W - achievable with maximum land pattern, enabling >10 W dissipation without heatsink |
Pinout & Package
FSV15120V uses the TO-277 (Case 340BQ) surface-mount package with three terminals: two anodes (Anode 1 and Anode 2) and one shared cathode. The package has no isolation barrier; both anodes are electrically identical and intended for parallel connection to halve effective forward resistance and thermal impedance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 | Main current input terminal | Parallel-connected with Anode 2 to distribute 15 A load and reduce localized heating |
| Anode 2 | Main current input terminal | Electrically identical to Anode 1; required for full-rated performance per datasheet layout guidelines |
| Cathode | Common output terminal | Single low-inductance return path; ΨJL = 5–6 °C/W enables superior cathode-side thermal extraction |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low VF trench architecture | 0.741 V typ @ 15 A - directly lowers I²R losses and improves light-load efficiency in buck and flyback outputs |
| Very low profile (1.1 mm height) | Enables use in <1.6 mm board stack-ups, such as USB-C PD adapters and thin LED drivers |
| Dual-anode configuration | Supports symmetrical current splitting and reduced trace inductance in high-frequency rectification |
| Pb-free, halogen-free, RoHS-compliant | Meets IPC-J-STD-609A Class 3 moisture sensitivity and global environmental compliance mandates |
| Non-DAP option only | Eliminates die-attach pad voiding risk, ensuring consistent thermal transfer and long-term reliability |
Applications
| Server VRM Output Rectification | Automotive ADAS Power Supply |
|---|---|
Use Scenario: High-current, high-frequency synchronous rectification in 12 V input server VRMs delivering up to 15 A to CPU/GPU cores. IC Role / Device Role / Timing Role: Primary output rectifier replacing MOSFETs in cost-sensitive designs where gate drive complexity must be avoided. Use Value: 0.741 V VF minimizes conduction loss at 15 A, reducing thermal stress on adjacent controllers and enabling smaller heatsinks. | Use Scenario: Input rectification for 12 V–48 V domain controllers in radar and camera ECU modules operating at −40 to +125 °C ambient. IC Role / Device Role / Timing Role: Reverse-polarity protection and DC bus conditioning upstream of DC/DC converters. Use Value: −55 to +150 °C TJ range and low IR ensure reliable startup and standby operation across automotive temperature extremes. |
| USB-C PD Fast Charging Adapter | Industrial PLC Power Module |
Use Scenario: Secondary-side rectification in compact 65 W USB-C PD adapters requiring <1.6 mm total height. IC Role / Device Role / Timing Role: High-efficiency AC/DC output stage rectifier with minimal footprint and thermal overhead. Use Value: 1.1 mm profile and TO-277 package allow direct integration into ultra-thin adapter PCBs without mechanical interference. | Use Scenario: Redundant OR-ing diode in dual-input 24 V industrial PLC power modules with hot-swap capability. IC Role / Device Role / Timing Role: Forward-biased isolation element preventing backfeed between redundant supplies during fault conditions. Use Value: Dual-anode layout supports parallel mounting for 30 A aggregate current handling with matched thermal rise across both paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS15H120CG | 15 A / 120 V, TO-277, VF = 0.79 V (typ) @ 15 A, IR = 10 mA (typ) @ 120 V | Slightly higher VF and leakage; same package and pinout | Acceptable where 50 mV higher VF is tolerable and ST sourcing is preferred |
| MBR15120CT | 15 A / 120 V, TO-220AB, VF = 0.85 V (typ) @ 15 A, IR = 15 mA (typ) @ 120 V, taller (9.1 mm) | Through-hole, higher VF, larger footprint, and greater height limit use in ultra-thin designs | Only suitable when board height >9 mm and through-hole assembly is required |
Compared with STPS15H120CG and MBR15120CT, the FSV15120V offers the lowest VF and smallest profile, making it optimal for thermally constrained, high-efficiency surface-mount power supplies - whereas STPS15H120CG trades minor VF penalty for alternate supply chain access, and MBR15120CT is incompatible with low-height requirements due to TO-220 packaging.
Availability
FSV15120V is available at Aetrix Electronics and suitable for server VRM output rectification, automotive ADAS power supplies, USB-C PD fast charging adapters, and industrial PLC power modules requiring stable component supply and long-term manufacturability.
Supply support for FSV15120V 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
onsemi (Semiconductor Components Industries, LLC) is a global semiconductor supplier focused on energy-efficient electronics, with leadership in power, analog, sensors, and connectivity solutions.
The FSV15120V belongs to onsemi's ultra-low VF Schottky rectifier product line, engineered specifically for high-current, low-voltage DC/DC output stages where thermal density and conduction loss dominate system efficiency.
FAQ
What is the maximum junction temperature rating for the FSV15120V?
The FSV15120V has a specified operating junction temperature range of −55 °C to +150 °C. This wide range allows reliable operation in harsh environments such as under-hood automotive applications or enclosed industrial power supplies. Derating curves in the datasheet confirm usable forward current down to zero at 150 °C case temperature. Thermal design must respect RJA and ΨJL limits per the recommended land patterns to avoid exceeding this TJ limit in practice. The FSV15120V must not be operated beyond these boundaries to ensure long-term reliability.
Does the FSV15120V support parallel anode operation, and why is it required?
Yes, the FSV15120V requires both Anode 1 and Anode 2 to be connected in parallel to achieve its rated 15 A IF(AV) and specified thermal performance. The dual-anode structure halves effective series resistance and distributes heat across two solder joints, lowering ΨJL and preventing localized overheating. Datasheet layout guidelines mandate equal-length, symmetric traces to both anodes. Using only one anode violates the absolute maximum ratings and risks premature failure. The FSV15120V is not functional as a single-anode device per its design and qualification.
Is the FSV15120V pin-compatible with other TO-277 Schottky rectifiers like STPS15H120CG?
Yes, the FSV15120V is mechanically and electrically pin-compatible with STPS15H120CG - both use the TO-277 (Case 340BQ) package with identical 3-terminal pinout (Anode 1, Anode 2, Cathode) and land pattern requirements. No PCB redesign is needed for substitution. However, differences in VF (0.741 V vs. 0.79 V) and IR (7.7 mA vs. 10 mA) mean system-level efficiency and leakage behavior will vary slightly. The FSV15120V remains the preferred choice where lowest conduction loss is critical.
What does "Non-DAP Option Only" mean for the FSV15120V?
"Non-DAP Option Only" means the FSV15120V is manufactured exclusively without a die-attach pad - eliminating the cavity beneath the silicon die that can trap moisture or cause delamination during reflow. This enhances thermal interface consistency and long-term reliability under thermal cycling. All FSV15120V units shipped are non-DAP; there is no DAP variant. This design choice directly supports the device's 150 °C TJ rating and RoHS-compliant Pb-free assembly process. The FSV15120V benefits from improved power-cycle lifetime versus DAP-equipped alternatives.
Can the FSV15120V be used in place of a standard 120 V Schottky like MBR15120CT?
No - the FSV15120V cannot serve as a direct replacement for the through-hole MBR15120CT due to fundamental package incompatibility: TO-277 (surface-mount, 1.1 mm height) vs. TO-220AB (through-hole, 9.1 mm height). While both share 15 A/120 V ratings, their footprints, thermal mounting methods, and assembly processes differ entirely. Substituting the FSV15120V would require full PCB redesign. The FSV15120V is intended for new ultra-thin SMT designs, not legacy through-hole upgrades.
FSV15120V Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- TO-277, 3-PowerDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 120 V
- Current - Average Rectified (Io):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 790 mV @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 35 µA @ 120 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-277-3
- Operating Temperature - Junction:
- -55°C ~ 150°C
FSV15120V FAQ
1.How can I place an order for FSV15120V through Aetrix?
Please submit a Request for Quotation (RFQ) for FSV15120V 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 FSV15120V reliable?
The price and inventory of FSV15120V are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FSV15120V is usually 5 days.
3.What payment methods are accepted for FSV15120V?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FSV15120V transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FSV15120V?
FSV15120V orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FSV15120V 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 FSV15120V?
For technical support, including FSV15120V datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FSV15120V requirements.
6.How does Aetrix verify that FSV15120V is sourced from the original manufacturer or authorized distributors?
All FSV15120V 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 FSV15120V meets industry standards.
7.What is the process for return or replacement of FSV15120V?
All FSV15120V units undergo pre-shipment inspection (PSI). If there is an issue with FSV15120V, 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 FSV15120V part is unused and in its original packaging.
Return procedure for FSV15120V:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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