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ACCEPT AND PROCEED

Product

Toroids

Toroids Toroids

Product ID: T0100 to T0325



T0100 to T0325 (less than 8.5 mm / 0.335 inch)


Steward′s ferrite toroids provide high performance when wound and used as cores for transformers, inductors, or chokes. A variety of materials and core sizes allow performance to be optimized for application size and frequency. Steward offers materials which provide the high inductance and low losses desired for high frequency transformers, materials which provide high impedance for low frequency EMI suppression, and materials which provide high impedance for high frequency EMI suppression. Small-sized, custom part shapes are also available in Steward 35 and 40 materials for specialized filtering applications.


Applications:
⊕ LAN matching and isolation transformers
⊕ LAN common mode chokes
⊕ Power supply common mode chokes
⊕ Inductors
⊕ Current sensing transformers
⊕ DC-DC converters
⊕ Telecommunications transformers
⊕ Telecommunications chokes
⊕ CAN-Bus Chokes
⊕ Lighting Ballasts
⊕ Ground Fault Interuptor Applications
⊕ EMI filters

Features:
  • Steward 35 and 40 material ferrite toroids provide low losses and high performance in transformers at kHz to low MHz frequencies
  • Steward 35 and 40 material ferrite toroids provide high impedance below 10MHz for suppression of undesired signals
  • Steward 28 material ferrite toroids provide high impedance from 10MHz to over 500MHz
  • P coating is parylene with typical thickness of 0.0005 inch. Hipot rating is 1000 VAC minimum
See more complete detail

 

MATERIALS

PARAMETER

SYMBOL

UNIT

25

28

38

46

36

35

56

39

42

40

Relative Initial Permeability

μi

 

 125

850

1700

4000

4500

5000

5500

7000

7500

10000

AL Tolerance

 

%

± 30

± 20

± 30

± 25

± 25

± 20

± 25

± 25

± 25

± 30

Saturation Flux Density

Bs

Gauss

3600

3250

3000

4500

4500

4500

4500

3800

4100

3800

mT

360

325

300

450

450

450

450

380

410

380

at Field Intensity

H

Oersteds

10

10

10

10

10

10

10

12.5

10

10

A/m

800

800

800

800

800

800

800

1000

800

800

Residual Flux Density

Br

Gauss

2600

2000

1500

1000

1000

1000

1000

730

1100

1400

mT

260

200

150

100

100

100

100

73

110

140

Coercive Force

Hc

Oersteds

1.60

0.40

0.20

0.10

0.10

0.10

0.10

0.10

0.10

0.04

A/m

127

3

16

8

8

8

8

8

8

3

Relative Loss Factor

tan δ μ i

10-6

740

91

53

10

10

20

15

< 8

6

5

at Frequency

f

MHz

0.10

0.10

0.10

0.10

0.10

0.10

0.10

0.010

0.010

0.10

Curie Temperature

Tc

°C

> 225

> 175

> 120

> 150

> 150

> 150

> 130

> 130

> 130

> 120

Resistivity

Ρ

Ω-cm

106

105

105

102

102

102

102

35

10

1

Density

 

 g/cm3

4.9

4.9

4.8

4.8

4.8

4.8

4.8

4.9

4.8

4.8

 

Part Number

MM

INCHES

Wt/k kgs

Ie mm

Ae mm2

Ve mm3

C1 mm-1

MLT mm/Turn

OD

ID

HT

OF

ID

HT

*T0100-00P

2.54

1.27

1.27

0.100

0.050

0.050

0.02

5.531

0.775

4.286

7.138

3.81

*T0100-20P

2.54

1.27

0.76

0.100

0.050

0.030

0.01

5.531

0.465

2.572

11.896

2.79

*T0100-30P

2.54

1.27

0.99

0.100

0.050

0.039

0.02

5.531

0.604

3.343

9.151

3.25

*T0100-40P

2.54

1.27

2.54

0.100

0.050

0.100

0.05

5.531

1.550

8.572

3.569

6.35

*T0101-10P

2.54

1.50

0.99

0.100

0.059

0.039

0.02

6.059

0.504

3.054

12.021

3.02

*T0115-00P

2.92

1.63

1.78

0.115

0.064

0.070

0.04

6.749

1.119

7.553

6.030

4.85

*T0115-10P

2.92

1.63

2.41

0.115

0.064

0.095

0.05

6.749

1.519

10.251

4.443

6.12

*T0119-00P

3.05

1.27

1.27

0.120

0.050

0.050

0.04

5.988

1.060

6.345

5.651

4.32

*T0119-10P

3.05

1.27

0.76

0.120

0.050

0.030

0.02

5.988

0.636

3.807

9.419

3.30

*T0119-20P

3.05

1.27

0.86

0.120

0.050

0.034

0.03

5.988

0.721

4.314

8.310

3.51

*T0119-40P

3.05

1.27

2.54

0.120

0.050

0.100

0.07

5.988

2.119

12.690

2.826

6.86

*T0120-00P

3.05

1.78

1.52

0.120

0.070

0.060

0.04

7.226

0.945

6.826

7.649

4.32

*T0120-80P

3.05

1.78

2.03

0.120

0.070

0.080

0.05

7.226

1.260

9.101

5.737

5.33

*T0121-20P

3.05

1.52

2.06

0.120

0.060

0.081

0.05

6.637

1.506

10.000

4.406

5.64

*T0122-00P

3.05

1.65

1.65

0.120

0.065

0.065

0.04

6.938

1.118

7.755

6.207

4.70

*T0122-30P

3.05

1.65

2.39

0.120

0.065

0.094

0.06

6.938

1.616

11.215

4.292

6.17

*T0130-00P

3.30

1.27

1.27

0.130

0.050

0.050

0.05

6.195

1.196

7.412

5.178

4.57

*T0135-00P

3.43

1.78

1.27

0.135

0.070

0.050

0.04

7.619

1.011

7.707

7.533

4.19

*T0135-10P

3.43

1.78

2.06

0.135

0.070

0.081

0.07

7.619

1.639

12.485

4.650

5.77

*T0135-20P

3.43

1.78

0.86

0.135

0.070

0.034

0.03

7.619

0.688

5.241

11.078

3.38

*T0135-30P

3.43

1.78

2.54

0.135

0.070

0.100

0.08

7.619

2.023

15.414

3.766

6.73

*T0135-40P

3.43

1.78

1.78

0.135

0.070

0.070

0.06

7.619

1.416

10.790

5.381

5.21

*T0135-60P

3.43

1.78

1.52

0.135

0.070

0.060

0.05

7.619

1.214

9.248

6.277

4.70

*T0137-00P

3.43

1.52

0.76

0.135

0.060

0.030

0.03

6.989

0.687

4.803

10.168

3.43

*T0145-00P

3.68

1.65

2.54

0.145

0.065

0.100

0.11

7.543

2.447

18.454

3.083

7.11

*T0153-00P

3.94

1.78

1.27

0.155

0.070

0.050

0.06

8.097

1.301

10.534

6.224

4.70

*T0153-40P

3.94

1.78

2.54

0.155

0.070

0.100

0.12

8.097

2.602

21.068

3.112

7.24

Custom Parts Also Available

Number

AL ( nH per turn squared )

Common Mode

DC Bias

Telecom

Other

25

28

38

36

46

56

42

40

35

125

850

1700

4500

4000

5500

7500

10000

5000

*T0100-00P

22

150

299

--

--

--

--

1761

880

*T0100-20P

13

90

180

475

--

--

792

1056

528

*T0100-30P

--

117

--

--

--

--

--

1373

687

*T0100-40P

--

--

--

1585

1408

1937

--

--

--

*T0101-10P

--

--

--

--

--

--

--

1045

--

*T0115-00P

--

--

--

938

834

1146

--

--

1042

*T0115-10P

--

--

--

1273

1131

1556

--

--

--

*T0119-00P

28

189

378

--

--

--

1668

2224

1112

*T0119-10P

--

113

--

--

--

--

--

--

667

*T0119-20P

--

129

--

--

--

--

--

--

--

*T0119-40P

--

--

--

2001

1779

2446

--

--

--

*T0120-00P

21

140

279

--

--

--

--

--

821

*T0120-80P

--

186

--

986

876

1205

--

--

--

*T0121-20P

--

--

--

--

1141

--

--

--

--

*T0122-00P

--

172

--

--

--

--

--

--

--

*T0122-30P

--

--

--

1317

1171

1610

--

--

--

*T0130-00P

--

206

--

--

--

--

--

--

--

*T0135-00P

21

142

284

751

667

--

1251

1668

834

*T0135-10P

--

230

--

1216

1081

1486

2027

2703

1351

*T0135-20P

14

96

--

510

--

--

--

1134

--

*T0135-30P

--

--

--

--

--

--

--

3336

--

*T0135-40P

--

--

--

1051

--

--

--

--

1168

*T0135-60P

25

170

340

901

--

--

--

--

1001

*T0137-00P

--

--

--

556

--

--

--

--

--

*T0145-00P

--

--

--

--

1630

--

--

--

--

*T0153-00P

--

--

--

909

--

--

1514

--

--

*T0153-40P

--

--

--

1817

--

2221

--

--

 

Catalog Parts are designated by AL value.

Part Number

MM

INCHES

wt/k kgs

Ie mm

Ae mm2

Ve mm3

C1 mm-1

MLT mm/Turn

OD

ID

HT

OD

ID

HT

*T0153-60P

3.94

1.78

1.52

0.155

0.070

0.060

0.07

8.097

1.561

12.641

5.186

5.21

*T0153-70P

3.94

1.78

1.78

0.155

0.070

0.070

0.08

8.097

1.821

14.748

4.445

5.72

*T0154-00P

3.94

1.68

1.37

0.155

0.066

0.054

0.07

7.831

1.459

11.429

5.366

5.00

*T0155-00P

3.94

2.24

2.54

0.155

0.088

0.100

0.10

9.196

2.104

19.353

4.370

6.78

*T0155-10P

3.94

2.24

1.27

0.155

0.088

0.050

0.05

9.196

1.052

9.677

8.740

4.24

*T0155-20P

3.94

2.24

2.01

0.155

0.088

0.079

0.08

9.196

1.663

15.289

5.531

5.72

*T0155-80P

3.94

2.24

1.65

0.155

0.088

0.065

0.07

9.196

1.368

12.580

6.723

5.00

*T0157-10P

3.99

2.01

0.99

0.157

0.079

0.039

0.05

8.715

0.944

8.223

9.235

3.96

*T0190-00P

4.83

2.29

2.54

0.190

0.090

0.100

0.18

10.196

3.080

31.401

3.311

7.62

*T0190-10P

4.83

2.29

1.27

0.190

0.090

0.050

0.09

10.196

1.540

15.701

6.621

5.08

*T0195-20P

4.95

1.57

0.76

0.195

0.062

0.030

0.06

8.312

1.155

9.601

7.196

4.90

*T0231-00P

5.84

3.05

1.52

0.230

0.120

0.060

0.14

13.026

2.055

26.775

6.337

5.84

*T0231-10P

5.84

3.05

3.05

0.230

0.120

0.120

0.29

13.026

4.111

53.549

3.169

8.89

*T0231-20P

5.84

3.05

3.18

0.230

0.120

0.125

0.30

13.026

4.282

55.780

3.042

9.14

*T0231-30P

5.84

3.05

2.54

0.230

0.120

0.100

0.24

13.026

3.426

44.624

3.802

7.87

*T0231-50P

5.84

3.05

2.03

0.230

0.120

0.080

0.19

13.026

2.741

35.699

4.753

6.86

*T0231-70P

5.84

3.05

4.29

0.230

0.120

0.169

0.41

13.026

5.790

75.415

2.250

11.38

*T0238-00P

6.05

2.95

3.18

0.238

0.116

0.125

0.34

12.978

4.713

61.163

2.754

9.45

*T0301-00P

7.62

3.18

4.78

0.300

0.125

0.188

0.88

14.970

9.960

149.103

1.503

14.00

*T0315-00P

8.00

3.18

4.78

0.315

0.125

0.188

0.99

15.284

10.736

164.094

1.424

14.38

*T0325-00P

8.26

4.45

4.78

0.325

0.175

0.188

0.89

18.730

8.812

165.042

2.126

13.36

Custom Parts Also Available

Part Number

AL ( nH per turn squared )

Common Mode

DC Bias

Telecom

Other

25

28

38

36

46

56

42

40

35

125

850

1700

4500

4000

5500

7500

10000

5000

*T0153-60P

--

--

--

1090

969

1333

--

--

--

*T0153-70P

--

--

--

1272

--

--

--

2827

--

*T0154-00P

--

--

--

--

--

--

--

--

1171

*T0155-00P

--

244

--

1294

--

--

2157

2876

--

*T0155-10P

18

122

244

--

--

--

--

1438

719

*T0155-20P

--

193

--

--

--

--

--

2272

1136

*T0155-80P

--

159

--

--

--

--

--

--

--

*T0157-10P

--

116

--

--

--

--

--

1361

--

*T0190-00P

--

--

--

--

--

--

2847

3796

--

*T0190-10P

--

161

--

--

--

--

--

--

949

*T0195-20P

--

--

--

786

--

--

--

--

--

*T0231-00P

25

169

337

892

--

--

--

--

991

*T0231-10P

--

337

--

--

--

--

2974

3966

1983

*T0231-20P

--

351

--

--

--

--

3098

4131

2066

*T0231-30P

--

--

--

--

--

--

--

--

1652

*T0231-50P

--

--

--

--

--

--

--

2644

--

*T0231-70P

--

--

--

--

--

--

--

5585

--

*T0238-00P

--

--

--

--

--

--

3423

4564

--

*T0301-00P

--

--

--

--

--

--

6271

8361

4181

*T0315-00P

--

--

--

--

--

--

--

8827

--

*T0325-00P

--

--

--

--

--

--

4434

5912

--


Catalog Parts are designated by AL value.