GOTREND Announces the New GSTF Series High-Current Flat-Wire Power Inductors for Next-Generation High-Power
2026.9.17
New Products
GOTREND
GOTREND Announces the New GSTF Series High-Current Flat-Wire Power Inductors for Next-Generation High-Power
ApplicationsTo address the rigorous demands for high-current magnetic components driven by the rapid growth of AI computing, new energy, and automotive electronics, GOTREND Technology proudly announces the launch of the GSTF Series High-Current Flat-Wire Power Inductors. Built with flat-wire winding and a specialized alloy powder magnetic core architecture, this series delivers ultra-low DC resistance and high saturation current. It is engineered to withstand high inrush current conditions with exceptional temperature-rise stability, effectively reducing system copper loss, suppressing output ripple, and preventing magnetic saturation while remaining fully compatible with Buck, Boost, SEPIC, and Cuk switching power topologies.
Key Features
1.Adopting flat‑wire winding combined with special‑alloy powder magnetic core to achieve ultra‑low DCR. Saturation current reaches up to 50.1 A, which reduces copper loss and temperature rise. It delivers excellent anti‑magnetic‑saturation performance to handle transient peak high‑current.
2.Wide inductance range from 2.0 µH to 33.0 µH with multiple size & structure options, flexibly meeting high‑power power‑supply designs such as POL, VRM and VRD.
3.Operating temperature: ‑40 °C ~ +125 °C, well‑suited for harsh high/low‑temperature environments such as automotive, industrial control and base‑station applications.
4.Passed ten major reliability qualification tests to guarantee long‑term operational stability.
5.High-Frequency Operation: Suitable for high-frequency work scenarios with a broad test frequency coverage and low parasitic parameters, effectively improving system high-frequency EMI performance while being compatible with a wide range of switching power topologies.
QCDS Key Advantages
GOTREND Technology GSTF Series： Wound with flat wire and combined with special‑alloy powder magnetic core, the product achieves extremely low DC resistance. Multiple structures adapt to a wider range of application scenarios with broad inductance coverage, suitable for high‑power applications such as Point‑of‑Load (POL) power supplies, Voltage Regulator Modules (VRM), and VRD.
• Quality : Features exceptional electrical performance and long-term reliability, having passed ten major reliability tests to ensure stable operation across various application environments.
• Pricing : Superior cost‑performance; delivers better QCDS versus competitors.
• Delivery：4 to 8 weeks for standard transactions and 8 to 12 weeks for non-standard transactions, providing flexible and reliable schedule support to meet customers' needs for rapid integration and continuous supply.
• Service : Manufactured in mainland China with inventory hubs across both sides of the strait, supported by high-speed global domestic and international logistics. We provide comprehensive technical support and application advice—from component selection and sample provision to mass production introduction—assisting customers throughout the entire process to enhance design efficiency and minimize development risks.
Key Features
1.Adopting flat‑wire winding combined with special‑alloy powder magnetic core to achieve ultra‑low DCR. Saturation current reaches up to 50.1 A, which reduces copper loss and temperature rise. It delivers excellent anti‑magnetic‑saturation performance to handle transient peak high‑current.
2.Wide inductance range from 2.0 µH to 33.0 µH with multiple size & structure options, flexibly meeting high‑power power‑supply designs such as POL, VRM and VRD.
3.Operating temperature: ‑40 °C ~ +125 °C, well‑suited for harsh high/low‑temperature environments such as automotive, industrial control and base‑station applications.
4.Passed ten major reliability qualification tests to guarantee long‑term operational stability.
5.High-Frequency Operation: Suitable for high-frequency work scenarios with a broad test frequency coverage and low parasitic parameters, effectively improving system high-frequency EMI performance while being compatible with a wide range of switching power topologies.
QCDS Key Advantages
GOTREND Technology GSTF Series： Wound with flat wire and combined with special‑alloy powder magnetic core, the product achieves extremely low DC resistance. Multiple structures adapt to a wider range of application scenarios with broad inductance coverage, suitable for high‑power applications such as Point‑of‑Load (POL) power supplies, Voltage Regulator Modules (VRM), and VRD.
• Quality : Features exceptional electrical performance and long-term reliability, having passed ten major reliability tests to ensure stable operation across various application environments.
• Pricing : Superior cost‑performance; delivers better QCDS versus competitors.
• Delivery：4 to 8 weeks for standard transactions and 8 to 12 weeks for non-standard transactions, providing flexible and reliable schedule support to meet customers' needs for rapid integration and continuous supply.
• Service : Manufactured in mainland China with inventory hubs across both sides of the strait, supported by high-speed global domestic and international logistics. We provide comprehensive technical support and application advice—from component selection and sample provision to mass production introduction—assisting customers throughout the entire process to enhance design efficiency and minimize development risks.
Main Applications
GSTF Series, as a versatile and high-efficiency component, exhibits exceptional flexibility to precisely match various high-power supply topology applications.
1. AI Servers & Computing Equipment
• Suitable for GPU core power supply BUCK circuits: Flat wire design effectively handles instantaneous peak currents and suppresses output voltage ripple, ensuring stability during multi-chip parallel operation. It is the preferred choice for POL, VRM, and VRD modules.
• Accelerator card memory power supply circuits: Reduces copper loss and suppresses output circuit ripple, ensuring synchronized and stable multi-chip operation.
• Matching Advantages: Low DCR with low temperature rise under high-current conditions; capable of withstanding GPU instantaneous peak currents with high resistance to magnetic saturation.
2. Industrial Control & Industrial Power Supplies
• Output filtering for high-power AC-DC industrial power supplies in control cabinets: Suitable for 24V industrial equipment power systems.
• Power conversion units in industrial control cabinets and servo controllers: Capable of withstanding inrush currents from motor start/stop operations, enhancing overall system tolerance under complex load conditions.
• Matching Advantages: Wide temperature tolerance and high inrush current resistance, tailored for long-term stable operation in harsh industrial environments.
3. Electric Vehicles (EV), DC-DC Converters & BMS
• Automotive high-to-low voltage DC-DC converters: Power inductors for the high-voltage to 12V low-voltage side, enabling high-power automotive power distribution.
• BMS power loops: Battery balancing charge/discharge filtering, managing high-current load switching in battery systems.
• Matching Advantages: AEC-Q200 qualified with low power loss; optimized for automotive high-current charging and discharging while suppressing switching noise to ensure reliable battery system performance.
4. Telecom Base Station Power Supplies
• 5G base station rectifier module DC-DC conversion branches: Provides stable, high-current power supply to RF units.
• Output filtering for base station embedded power systems: Operates reliably in outdoor wide-temperature environments.
• Matching Advantages: Excellent thermal performance and superior ripple suppression under dynamic load fluctuations, ideal for 24/7 continuous operation in base stations.
5. Uninterruptible Power Supplies (UPS)
• Inverter boost circuits in online high-power UPS: Provides energy storage during power switching between utility grid and battery mode.
• Rack-mounted UPS battery-side DC-DC conversion: High-current charge/discharge filtering to reduce overall heat dissipation.
• Matching Advantages: High saturation current capable of handling transient high currents during grid-to-battery switching, improving overall conversion efficiency.
6. High-Power Switching Regulators
• 48V to 12V high-power modules: Serves as the main power inductor for switching regulators to enhance power conversion efficiency.
• Multi-output high-power regulator modules: Maintains stable output under multi-channel concurrent loads.
• Matching Advantages: Flat-wire windings minimize DC losses, maintaining stable output under heavy loads and reducing module temperature.
7. Buck, Boost, SEPIC & Cúk Switching Power Supply Topologies
• Buck topology: Step-down output for energy storage equipment; flat wire inductors achieve high-current step-down energy storage.
• Boost / SEPIC topologies: Buck-boost conversion for portable high-power supplies; Cúk topology used for energy storage in positive/negative voltage output power supplies.
• Matching Advantages: Low parasitic parameters, compatible with multiple switching topologies, and improves high-frequency EMI performance.
1. AI Servers & Computing Equipment
• Suitable for GPU core power supply BUCK circuits: Flat wire design effectively handles instantaneous peak currents and suppresses output voltage ripple, ensuring stability during multi-chip parallel operation. It is the preferred choice for POL, VRM, and VRD modules.
• Accelerator card memory power supply circuits: Reduces copper loss and suppresses output circuit ripple, ensuring synchronized and stable multi-chip operation.
• Matching Advantages: Low DCR with low temperature rise under high-current conditions; capable of withstanding GPU instantaneous peak currents with high resistance to magnetic saturation.
2. Industrial Control & Industrial Power Supplies
• Output filtering for high-power AC-DC industrial power supplies in control cabinets: Suitable for 24V industrial equipment power systems.
• Power conversion units in industrial control cabinets and servo controllers: Capable of withstanding inrush currents from motor start/stop operations, enhancing overall system tolerance under complex load conditions.
• Matching Advantages: Wide temperature tolerance and high inrush current resistance, tailored for long-term stable operation in harsh industrial environments.
3. Electric Vehicles (EV), DC-DC Converters & BMS
• Automotive high-to-low voltage DC-DC converters: Power inductors for the high-voltage to 12V low-voltage side, enabling high-power automotive power distribution.
• BMS power loops: Battery balancing charge/discharge filtering, managing high-current load switching in battery systems.
• Matching Advantages: AEC-Q200 qualified with low power loss; optimized for automotive high-current charging and discharging while suppressing switching noise to ensure reliable battery system performance.
4. Telecom Base Station Power Supplies
• 5G base station rectifier module DC-DC conversion branches: Provides stable, high-current power supply to RF units.
• Output filtering for base station embedded power systems: Operates reliably in outdoor wide-temperature environments.
• Matching Advantages: Excellent thermal performance and superior ripple suppression under dynamic load fluctuations, ideal for 24/7 continuous operation in base stations.
5. Uninterruptible Power Supplies (UPS)
• Inverter boost circuits in online high-power UPS: Provides energy storage during power switching between utility grid and battery mode.
• Rack-mounted UPS battery-side DC-DC conversion: High-current charge/discharge filtering to reduce overall heat dissipation.
• Matching Advantages: High saturation current capable of handling transient high currents during grid-to-battery switching, improving overall conversion efficiency.
6. High-Power Switching Regulators
• 48V to 12V high-power modules: Serves as the main power inductor for switching regulators to enhance power conversion efficiency.
• Multi-output high-power regulator modules: Maintains stable output under multi-channel concurrent loads.
• Matching Advantages: Flat-wire windings minimize DC losses, maintaining stable output under heavy loads and reducing module temperature.
7. Buck, Boost, SEPIC & Cúk Switching Power Supply Topologies
• Buck topology: Step-down output for energy storage equipment; flat wire inductors achieve high-current step-down energy storage.
• Boost / SEPIC topologies: Buck-boost conversion for portable high-power supplies; Cúk topology used for energy storage in positive/negative voltage output power supplies.
• Matching Advantages: Low parasitic parameters, compatible with multiple switching topologies, and improves high-frequency EMI performance.
Application Circuit Diagram
Dimensional & Electrical Specification Comparison
|
序号 |
產品料號 |
GOTREND (GSTF2815PA-4R7M) |
Coilcraft (SER2915H-472KL) |
|||||||
|
1 |
GSTF2815PA-4R7M |
L ( μH ) |
DCR ( Ω ) ( Max. ) |
Isat ( A ) ( Typ. ) |
Irms ( A ) ( Typ. ) |
L ( μH ) |
DCR ( Ω ) ( Max. ) |
Isat ( A ) ( Max. ) |
Irms ( A ) ( Max. ) |
|
|
4.7 ±20% |
1.80 |
50.1 |
30 |
4.7 ±10% |
2.05 |
50.1 |
30 |
|||
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