28B0250-100 Laird Technologies, 28B0250-100 Datasheet - Page 17

• Manufacturer Part Number: 28B0250-100
• Description: FERRITE TUBULAR BEAD 3.18MM
• Manufacturer: Laird Technologies
• Series: Stewardr
• Type: Core-Solidr

Specifications of 28B0250-100

• Filter Type: Round Cable, Solid
• Shape: Cylindrical
• Frequency: 100MHz
• Impedance: 182 Ohm
• Package / Case: 6.35mm O.D. x 3.18mm I.D. x 15.88mm L
• Test Frequency: 100 MHz
• Product: Ferrite Cores
• Maximum Dc Resistance: 182 Ohms
• Operating Temperature Range: - 40 C to + 125 C
• Diameter, Cable: 0.125 "
• Impedance, At 100 Mhz: 182 Ohms
• Impedance, At 25 Mhz: 90 Ohms
• Impedance, At 300 Mhz: 300 Ohms
• Material, Core: 28
• Termination: Cable
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 240-2289

BROADBAND FERRITE EMI CORES
FOR RIBBON & FLEX CABLES
www.lairdtech.com
FERRITE EMI CABLE CORES
PART NUMBERING SYSTEM EXAMPLE
Custom parts with double sided mounting tape are available.
*Broadband (28) ribbon and flex cable cores are sorted by slot width on pages 23 & 24
and sorted by impedance on pages 25 & 26.
Material
28R0315-200
28R0354-100
28R0386-000
28R0394-000
28R0453-200
28R0453-300
28R0454-100
28R0480-000
28R0480-100
28R0492-100
28R0539-000
28R0546-000
28R0551-100
28R0592-010
28R0610-000
28R0614-100
28R0614-300
28R0669-000
28R0756-000
Type
28
NUMBER
PART
Product
Code
R
page
# on
Fig
20
2
3
3
2
2
2
3
2
2
2
2
2
3
2
3
2
2
2
3
Part Size
0315
Code
(0.315)
(0.354)
(0.386)
(0.394)
(0.453)
(0.453)
(0.453)
(0.480)
(0.480)
(0.492)
(0.539)
(0.547)
(0.551)
(0.591)
(0.610)
(0.614)
(0.614)
(0.669)
(0.756)
10.00
11.50
11.50
11.50
12.20
12.20
12.50
13.70
13.90
14.00
15.01
15.50
15.60
15.60
17.00
19.20
8.00
9.00
9.80
A
Dimension Code
(Usually Length)
DIMENSIONS mm (inches)
(0.236)
(0.276)
(0.287)
(0.276)
(0.315)
(0.315)
(0.374)
(0.315)
(0.315)
(0.327)
(0.362)
(0.370)
(0.433)
(0.394)
(0.531)
(0.535)
(0.535)
(0.512)
(0.591)
11.00
10.00
13.50
13.60
13.60
13.00
15.00
6.00
7.00
7.30
7.00
8.00
8.00
9.50
8.00
8.00
8.30
9.20
9.40
Selected
B
-2
(0.472)
(0.551)
(0.315)
(0.984)
(0.472)
(0.787)
(0.551)
(0.709)
(0.472)
(0.472)
(0.709)
(0.709)
(0.787)
(0.900)
(0.394)
(0.472)
(0.709)
(0.472)
(0.394)
12.00
14.00
25.00
12.00
20.00
14.00
18.00
12.00
12.00
18.00
18.00
20.00
22.86
10.00
12.00
18.00
12.00
10.00
8.00
C*
Part Description
(0.106)
(0.106)
(0.130)
(0.197)
(0.118)
(0.118)
(0.106)
(0.217)
(0.217)
(0.217)
(0.209)
(0.209)
(0.146)
(0.295)
(0.134)
(0.110)
(0.110)
(0.138)
(0.211)
Additional
2.70
2.70
3.30
5.00
3.00
3.00
2.70
5.50
5.50
5.50
5.30
5.30
3.70
7.49
3.40
2.80
2.80
3.50
5.35
D
0
(0.0315)
(0.0315)
(0.0315)
(0.028)
(0.028)
(0.079)
(0.028)
(0.028)
(0.028)
(0.039)
(0.039)
(0.039)
(0.028)
(0.059)
(0.055)
(0.028)
(0.028)
(0.030)
(0.045)
0.70
0.70
0.80
2.00
0.70
0.70
0.70
1.00
1.00
1.00
0.80
0.80
0.70
1.50
1.40
0.70
0.70
0.75
1.15
E
Additional Part
Description or
Coating Code
@ 25
MHz
100
121
48
50
36
92
43
65
45
68
68
94
91
71
29
36
45
41
40
Typical Impedance
0
(Z) in Ohms (Ω)
@ 100
MHz
102
125
196
104
153
121
190
150
150
190
193
176
227
125
110
107
96
80
98
@ 300
MHz
250
269
224
294
260
335
269
320
290
290
345
419
352
370
216
245
280
270
258
17