Gap Toroidal Core (GTC)

Toroidal Choke Core (GTC)

Toroidal choke cores are manufactured with iron-based amorphous metal Ribbon. They are unique combination of ultra-high saturation induction, high energy storage capability and low core loss for high frequency magnetic components which are significantly smaller than conventional components.

Ribbon Thickness µm………25
Density (gcm3)……..719
Thermal Expansion (ppm/°C)……….76
Crystallization Temperature (°C)…..550
Curie Temperature (°C)…………415
Continuous Service Temperature (°C)…..120
Tensile Strength (MN/m2)….1k-1.7k
Elastic Modulus (GN/m2)……100100
Vicker’s Hardness (50g load)……860
Saturation Flux Density (Tesla)…………..1.56
Permeability (depending on gap size)…………149-390
Saturation Magnetostriction (ppm)………….27
Electrical Resistivity (µΩ-cm)……….130

DC output inductors
Power factor correction chokes
Differential mode input chokes
Flyback Transformers

AMENITIES	ECONOMY	STANDARD	DELUXE
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PART NO	FINISHED DIM ODxIDxHT(mm)	LM*(cm)	Ac* (cm2)	Core Wt* (Gm)	Window Area (Wa) (cm2)	U+15 %	AL+15 % (nH)
EM0905GTC	11.7×4.3×7.3	2.51	0.06	1.05	0.145	312	36
EM1205GTC	13.3×6.2×7.3	3.06	0.05	1.62	0.301	255	58
EM1305GTC	15.3×5.7×7.3	3.3	0.11	2.6	0.256	149	62
EM1505GTC	17.3×6.7×7.3	3.77	0.13	3.6	0.353	166	71
EM1805GTC	20.7×10.4×7.3	4.88	0.13	4.17	0.849	152	61
EM1810GTC	20.3×9.7×12.3	4.71	0.24	8	0.74	173	111
EM2110GTC	23.3×12.2×12.3	5.58	0.26	10.4	1.17	237	136
EM2510GTC	27.3×19.2×12.3	7.3	0.14	7.3	2.89	390	94
EM2610GTC	28.3×13.7×12.3	6.6	0.38	18	1.47	181	131
EM3710GTC	39.3×20.7×12.3	9.42	0.53	36	3.37	183	130

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Gap Toroidal Core (GTC)

Toroidal Choke Core (GTC)

Product Identification

C Core Dimension