28B1250-000 Laird Technologies, 28B1250-000 Datasheet - Page 7

• Manufacturer Part Number: 28B1250-000
• Description: FERRITE TUBULAR BEAD 19.05MM
• Manufacturer: Laird Technologies
• Series: Stewardr

Specifications of 28B1250-000

• Filter Type: Round Cable, Solid
• Shape: Cylindrical
• Frequency: 100MHz
• Impedance: 186 Ohm
• Package / Case: 31.75mm O.D. x 19.05mm I.D. x 22.22mm L
• Test Frequency: 100 MHz
• Product: Ferrite Cores
• Maximum Dc Resistance: 186 Ohms
• Operating Temperature Range: - 40 C to + 125 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 240-2119

BROADBAND EMI FERRITE
SPLIT / SNAP-ON CORES IN PLASTIC CASES
www.lairdtech.com
FERRITE EMI CABLE CORES
FOR ROUND CABLES & WIRING HARNESSES
PART NUMBERING SYSTEM EXAMPLE
Material
Type
28
28B0141-000
28B0157-100
28B0250-100
28B0250-700
28B0268-000
28B0275-000
28B0296-000
28B0306-000
28B0315-000
28B0315-100
28B0339-000
28B0355-000
28B0375-000
28B0375-100
28B0375-300
28B0375-400
28B0384-000
28B0384-200
28B0390-200
28B0394-000
28B0395-000
28B0434-000
28B0453-000
Number
Part
Product
Code
B
(0.138)
(0.157)
(0.250)
(0.250)
(0.267)
(0.276)
(0.296)
(0.307)
(0.315)
(0.315)
(0.339)
(0.354)
(0.375)
(0.375)
(0.375)
(0.375)
(0.384)
(0.384)
(0.390)
(0.394)
(0.394)
(0.433)
(0.453)
10.00
10.01
11.00
11.50
Part Size
3.50
4.00
6.35
6.35
6.78
7.00
7.52
7.80
8.00
8.00
8.60
9.00
9.53
9.53
9.53
9.52
9.75
9.75
9.91
0141
A
Code
DIMENSIONS mm
(inches)
(0.059)
(0.079)
(0.125)
(0.125)
(0.157)
(0.150)
(0.118)
(0.125)
(0.125)
(0.150)
(0.187)
(0.200)
(0.200)
(0.200)
(0.200)
(0.150)
(0.150)
(0.250)
(0.197)
(0.235)
(0.201)
(0.193)
(0.94)
1.50
2.00
3.18
3.18
3.99
3.80
2.39
3.00
3.17
3.17
3.80
4.75
5.08
5.08
5.08
5.08
3.80
3.80
6.35
5.00
5.97
5.10
4.90
Dimension Code
(Usually Length)
B
Selected
-0
(0.128)
(0.394)
(0.625)
(0.394)
(0.560)
(0.531)
(0.297)
(0.748)
(0.188)
(0.396)
(0.394)
(0.787)
(0.410)
(0.570)
(0.750)
(0.190)
(0.394)
(0.984)
(0.590)
(0.197)
(0.243)
(1.260)
(0.984)
10.00
15.88
10.00
14.22
13.50
19.00
10.06
10.00
20.00
10.41
14.48
19.05
10.00
25.00
15.00
32.00
25.00
3.25
7.54
4.78
4.83
5.00
6.17
C
Description
Additional
Part
@ 25
MHz
0
Net Impedance (Z) in
121
110
100
182
200
148
30
67
90
64
65
69
75
43
76
68
57
74
33
82
57
34
31
Ohms (Ω)
@ 100
MHz
121
182
135
138
146
160
231
100
158
143
205
125
154
194
159
322
128
349
262
79
81
86
83
Additional Part
Description or
Coating Code
0
@ 300
MHz
192
236
300
255
260
268
270
352
220
281
264
360
245
282
310
200
286
473
248
201
199
481
378
B
Broadband (28) round cable parts are
sorted by inside diameter on pages
12 & 13 and sorted by impedance on
pages 14 & 15.
Please refer to the separate Toroid
Catalog from Laird Technologies for an
extensive list of small ferrite inductor
toroid core sizes and materials.
C
A
7