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Sendust Core Durable AS157 Toroidal Inductor for Professional Electronic
High-Efficiency Energy Solution: AS157 Industrial Toroidal Power Inductor
The AS157 Series Toroidal Inductor represents a pinnacle of high-current magnetic design, engineered specifically for rigorous industrial power conversion and energy storage tasks. Featuring an optimized 1.57-inch outer diameter core, this inductor provides the ideal balance between physical footprint and magnetic flux capacity.
Key Advantages
Superior Magnetic Core Material: Utilizes high-saturation Sendust (Fe-Si-Al) or iron powder cores with soft saturation characteristics for stable performance during peak current surges
Ultra-Low Core Loss: Distributed air-gap structure significantly reduces eddy current losses for higher system efficiency and cooler operation
Integrated Spade Terminal Leads: Heavy-duty tinned copper spade terminals with protective insulation sleeves for rapid, secure, vibration-resistant installation
Natural EMI Suppression: Toroidal shape provides self-shielding effect that traps magnetic flux within the core
High Thermal Resilience: Rated for industrial-grade temperature ranges with Class H (180°C) or Class F (155°C) copper wire insulation
Precision Winding Architecture: Dense, uniform winding ensures lowest possible DC resistance for maximum power throughput
Technical Specifications
Technical Parameter
Standard Specification / Range
Model Designation
AS157 High-Current Toroidal Series
Inductance Range (L)
100µH - 1.5mH (Customizable)
Rated Current (Irms)
15A - 40A (Based on 40°C Temp Rise)
Saturation Current (Isat)
20A - 55A (Based on 20% Inductance Drop)
DC Resistance (DCR)
5.0mΩ - 45mΩ (Winding Dependent)
Core Material
Sendust (Fe-Si-Al) or Iron Powder
Core Dimensions (Approx)
OD: 40mm / ID: 24mm / HT: 15mm
Operating Frequency
50Hz - 200kHz (Optimized for Filtering)
Insulation Class
Class H (180°C) Standard
Terminal Type
Spade Terminal (Spade Connector)
Mounting Style
Chassis Mount / Lead Wire Connection
Operating Temperature
-45°C to +125°C (Including Self-Heating)
Quality Standard
RoHS, REACH, ISO9001 Compliant
Engineering Insight
The AS157 series utilizes magnetic cores with high flux density (1.0T to 1.5T), allowing the inductor to maintain energy storage capability under heavy loads. Powder cores offer gradual saturation decline, providing safety buffer for switching MOSFETs in DC-DC converters. Low DCR is achieved through oversized copper wire, minimizing losses and heat generation.
Advanced Manufacturing Features
The AS157 Toroidal Inductor excels through advanced material integration and precision manufacturing. The toroidal geometry features distributed air gaps within the material itself, ensuring uniform magnetic fields and complete containment.
Spade Terminal Lead System: Tinned copper spade connectors professionally crimped and soldered for vibration-resistant industrial applications
High-Flux Powder Core Technology: Proprietary Sendust blend prevents thermal aging, ensuring stable magnetic properties over decades of operation
Precision Winding: Automated CNC machines ensure perfect spacing and tensioning for consistent electrical characteristics
Environmental Ruggedness: Moisture-proof varnish and durable epoxy finish provide resistance to salt spray, humidity, and industrial chemicals
Industrial Applications
Renewable Energy: Solar inverters and wind turbine power converters requiring maximum efficiency and outdoor temperature resilience
Industrial Automation: Motor drives, CNC controllers, and UPS systems for EMI filtering and power surge protection
Electric Vehicles: On-board chargers, DC-DC converters, and EV charging stations with high power density requirements
Telecommunications: Server power supplies and rectifiers for data centers and 5G base stations with low EMI footprint
Manufacturer Profile: Chipsen Electronics
Chipsen Electronics is a professional manufacturer specializing in high-performance transformers and magnetic components, with over 26 years of manufacturing expertise.
Founded in 2000 with 4 production bases covering 7,200+ square meters
400+ skilled employees ensuring stable production capacity and fast order delivery
Certifications include ISO9001, ISO14001, IATF16949, UL Class B/F/H, CQC, RoHS, and REACH
36+ utility patents supported by robust in-house R&D team
Full-range standard models with flexible custom development services
Company Advantages
Full Service Customization with 24-48 hour engineering support
200+ product types including transformers, inductors, filters, and common mode chokes
Advanced automated manufacturing improving efficiency by 8x
100% testing procedures for electrical performance and reliability
Specialized in 5KV to 40KV high voltage transformers
Flexible MOQ with lead times as fast as 7-15 days
OEM/ODM supported with competitive factory direct pricing
Frequently Asked Questions
How long does it take to prepare samples?
3-5 days for new samples, 1 day for samples in stock.
How are samples shipped?
When customers cover freight costs, we help choose the most economical shipping method.
Do you provide technical support for customized products?
Yes, our strong R&D team provides free technical support for customizations in voltage, power, inductance, dimensions, core materials, and more.
Do you accept flexible minimum order quantities?
We support flexible MOQ based on your industry and product requirements. Please share your application areas and estimated annual usage.
Can you ensure proper packaging for large sea shipments?
Yes, we provide goods packed in strong export cartons, on wooden pallets, and shrink-wrapped for protection.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2007
Total Annual:
28820000-29820000
Employee Number:
400~450
Ecer Certification：
Verified Supplier
Chipsen Electronics - Supplier to Fortune Global 500 Companies
Magnetic Components Engineered for Performance & Reliability
Founded in 2007, Dongguan Chipsen Electronics Technology Co., Ltd. is a professional manufacturer specializing in magnetic components and micro switches.
...
Chipsen Electronics - Supplier to Fortune Global 500 Companies
Magnetic Components Engineered for Performance & Reliability
Founded in 2007, Dongguan Chipsen Electronics Technology Co., Ltd. is a professional manufacturer specializing in magnetic components and micro switches.
...
