High-Performance Iron Silicon Boron Alloy Magnetic C Core

Iron Silicon Boron Alloy Magnetic C Core Product Description

---

 

amorphous/nanocrystalline alloy c core feature

The amorphous/nanocrystalline structure of iron-silicon-boron alloy is the core of its performance, distinguishing it from traditional crystalline magnetic materials with the following key characteristics:

 

• Low High-Frequency Loss: The amorphous/nanocrystalline structure has no crystal orientation restrictions, resulting in low magnetic domain rotation resistance. In the high-frequency range of 1kHz~1MHz, hysteresis loss is only 1/3 to 1/5 that of high-grade silicon steel, with significantly lower eddy current loss. This can greatly reduce heat generation in high-frequency equipment during operation and improve energy efficiency.

 

• High Magnetic Permeability and Saturation Magnetic Induction: The initial magnetic permeability at room temperature can reach 10⁴~10⁵ H/m, much higher than ordinary soft iron, enabling rapid response to magnetic field changes and adaptation to precise magnetic signal conversion. With a saturation magnetic induction of approximately 1.5T~1.8T, it can conduct more magnetic energy in a smaller volume, facilitating equipment miniaturization.

 

• Good Chemical Stability: A dense oxide film easily forms on the alloy surface, providing better moisture and corrosion resistance than silicon steel. No additional protective coating is required, simplifying the production process while extending the core's service life in harsh environments (such as humid and hot working conditions).

 

Core Advantages of the C-Shaped Structure

The C-shaped structure provides process and design flexibility for the application of iron-silicon-boron alloy cores, with main advantages including:

 

Convenient Winding and Assembly: The C-shaped core is divided into two symmetrical half-cores, which can be separately wound with coils before splicing and assembly. Unlike toroidal cores, there is no need to thread wires from one end of the strip, making it particularly suitable for winding with thick wires and high turns. This significantly improves production efficiency (30%~50% higher than toroidal core winding efficiency).

 

Controllable Magnetic Circuit Parameters: An air gap can be accurately reserved at the splicing joint according to design requirements. By adjusting the air gap thickness, the core's magnetic resistance, inductance, and saturation current can be flexibly adjusted, adapting to magnetic components with different powers and working conditions (such as high-frequency inductors and isolation transformers) with high design freedom.

 

Excellent Heat Dissipation Performance: The open design of the C-shaped structure provides a larger heat dissipation area than the closed toroidal structure. Additionally, the windings are in more uniform contact with the core, allowing heat to be quickly conducted to external heat dissipation components. This makes it suitable for high-frequency, high-power equipment operating for long periods (such as new energy vehicle on-board inverters).

 

Amorphous core Application 

This type of core mainly adapts to high-frequency, precision, and miniaturization application requirements:

 

High-Frequency Electronic Equipment Field:

Used in high-frequency inductors of switching power supplies and DC-DC converters, it improves power conversion efficiency (up to over 95%) by virtue of low high-frequency loss characteristics, while meeting equipment miniaturization requirements (such as reducing the volume of consumer electronics power supplies by 20%~30%).

 

New Energy Field:

Such as on-board chargers (OBC) for new energy vehicles and high-frequency transformers for energy storage systems. Under high-frequency (10kHz~100kHz) and high-current working conditions, it balances low loss and assembly convenience, adapting to the compact space and high reliability requirements of on-board equipment.

 

Precision Instrument Field:

Used in isolation inductors and filter inductors of medical equipment (such as ultrasonic diagnostic instruments) and communication equipment (such as base station radio frequency modules). It ensures the accuracy of magnetic signal conversion with high magnetic permeability and reduces interference to precision circuits.

C Core specification

Core Build		Window Width		Core Height		Core Width		Core Length
a(mm)	±	b(mm)	c(mm)	d(mm)	±	e(mm)	±	f(mm)	±
9	0.5	10	32.8	15	0.5	28	1	50.8	1.25
10	0.5	11	33	20	0.5	31	1	53	2
11	0.5	13	30	20	0.5	35	1	52	2
11	0.5	13	40	20	0.5	35	1	62	2
11	0.5	13	40	25	0.5	35	1	62	2
11	0.8	13	50	25	0.5	35	1	72	2
11	0.8	13	50	30	0.5	35	1	72	2
13	0.8	15	56	25	0.5	41	1	82	2
13	0.8	15	56	30	0.5	41	1	82	2
13	0.8	15	56	35	0.5	41	1	82	2
16	0.8	20	70	25	0.5	52	1	102	3
16	1	20	70	30	0.5	52	1	102	3
16	1	20	70	40	0.5	52	1	102	3
16	1	20	70	45	1	52	1	102	3
19	1	25	83	35	1	63	1	121	3
19	1	25	83	40	1	63	1	121	3
19	1	25	83	50	1	63	1	121	3
19	1	25	90	60	1	63	1	128	3
22	1	35	85	50	1	79	1	129	4
22	1	35	85	65	1	79	1	129	4
25	1	40	85	55	1	90	1	135	4
25	1	40	85	70	1	90	1	135	4
25	1	40	85	85	1.5	90	1	135	4
30	1	40	85	85	1.5	100	1	155	4
33	1	40	105	85	1.5	106	1	171	5
Note: Additional sizes can be customized to meet specific customer requirements.