28B0250-100 Laird Technologies, 28B0250-100 Datasheet - Page 19

• 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

www.lairdtech.com
FERRITE EMI CABLE CORES
BROADBAND FERRITE EMI CORES
FOR RIBBON & FLEX CABLES
PART NUMBERING SYSTEM EXAMPLE
Material
28R1127-200
28R1127-400
28R1127-500
28R1128-100
28R1128-200
28R1141-010
28R1177-000
28R1181-000
28R1227-100
28R1236-000
28R1240-010
28R1261-100
28R1261-200
28R1262-000
28R1262-200
28R1319-000
28R1340-100
28R1340-200
28R1417-000
28R1418-000
28R1450-100
Type
28
NUMBER
PART
Product
Code
R
page
# on
Fig
20
3
3
3
3
3
3
3
3
2
2
2
3
3
2
2
3
3
3
2
3
3
Part Size
0315
Code
(1.125)
(1.125)
(1.125)
(1.125)
(1.125)
(1.457)
(1.177)
(1.181)
(1.225)
(1.236)
(1.236)
(1.260)
(1.260)
(1.260)
(1.260)
(1.312)
(1.340)
(1.340)
(1.417)
(1.417)
(1.450)
28.58
28.58
28.58
28.58
28.58
37.00
29.90
30.00
31.12
31.40
31.40
32.00
32.00
32.00
32.00
33.50
34.00
34.00
36.00
36.00
36.83
A
Dimension Code
(Usually Length)
DIMENSIONS mm (inches)
(0.925)
(0.925)
(0.925)
(0.925)
(0.945)
(1.063)
(0.929)
(0.984)
(0.975)
(0.906)
(0.906)
(0.988)
(0.988)
(1.024)
(1.024)
(1.063)
(1.100)
(1.100)
(1.024)
(1.299)
(1.165)
23.50
23.50
23.50
23.50
24.00
27.00
23.60
25.00
24.77
23.00
23.00
25.10
25.10
26.00
26.00
27.00
28.00
28.00
26.00
33.00
29.58
Selected
B
-2
(0.980)
(0.669)
(0.382)
(1.024)
(0.551)
(0.715)
(0.551)
(1.181)
(0.525)
(0.748)
(0.827)
(1.378)
(0.382)
(1.181)
(0.512)
(0.472)
(0.472)
(0.984)
(1.575)
(0.394)
(0.394)
24.89
17.00
26.00
14.00
18.25
14.00
30.00
13.30
19.00
21.00
35.00
30.00
13.00
12.00
12.00
25.00
40.00
10.00
10.00
9.70
9.70
C*
Part Description
Additional
(0.303)
(0.303)
(0.303)
(0.231)
(0.212)
(0.315)
(0.295)
(0.288)
(0.325)
(0.305)
(0.305)
(0.305)
(0.305)
(0.276)
(0.276)
(0.256)
(0.280)
(0.280)
(0.433)
(0.157)
(0.305)
11.00
7.70
7.70
7.70
5.88
5.38
8.00
7.50
5.80
8.26
7.75
7.75
7.75
7.75
7.00
7.00
6.50
7.00
7.00
4.00
7.75
D
0
(0.067)
(0.067)
(0.067)
(0.031)
(0.031)
(0.059)
(0.047)
(0.031)
(0.075)
(0.059)
(0.039)
(0.035)
(0.035)
(0.039)
(0.039)
(0.059)
(0.039)
(0.039)
(0.039)
(0.039)
(0.030)
1.70
1.70
1.70
0.80
0.80
1.50
1.20
0.80
1.91
1.50
1.00
0.90
0.90
1.00
1.00
1.50
1.00
1.00
1.00
1.00
0.75
E
Additional Part
Description or
Coating Code
@ 25
MHz
140
110
187
85
60
40
79
52
67
62
92
52
78
84
50
53
43
50
86
34
48
Typical Impedance
0
(Z) in Ohms (Ω)
@ 100
MHz
191
150
110
204
145
168
152
227
128
162
211
350
135
260
141
117
139
220
393
104
130
@ 300
MHz
410
330
265
399
312
380
340
450
300
370
440
700
310
520
344
269
315
449
734
245
290
19