CB Series
Ceramic Housed Wirewound with Axial Leads
Features:
Fireproof power wirewound
High thermal conductivity
Different element(resistor) available:
precision / ceramic & metal oxide
Non-inductive styles available
Body standoffs available; add “F” after CB
RoHS compliant / lead-free
Stackpole Electronics, Inc.
Resistive Product Solutions
Electrical Specifications
Type / Code
Power Rating (Watts)
@ 70ºC
0.5%
Ohmic Range and Tolerance
1%
5%
-
-
-
-
-
-
-
-
-
-
1Ω - 5KΩ
1Ω - 10KΩ
1Ω - 10KΩ
1Ω - 15KΩ
1Ω - 20KΩ
1Ω - 20KΩ
-
-
-
0.1Ω - 300Ω
0.1Ω - 680Ω
0.1Ω - 680Ω
0.1Ω - 1.5KΩ
0.1Ω - 2KΩ
0.15Ω - 2KΩ
0.2Ω - 2KΩ
1Ω - 250Ω
0.2Ω - 2KΩ
1Ω - 250Ω
1Ω - 5KΩ
1Ω - 10KΩ
1Ω - 10KΩ
1Ω - 15KΩ
1Ω - 20KΩ
1Ω - 20KΩ
1Ω - 500KΩ
1Ω - 500KΩ
1Ω - 500KΩ
10%
0.1Ω - 300Ω
0.1Ω - 680Ω
0.1Ω - 680Ω
0.1Ω - 1.5KΩ
0.1Ω - 2KΩ
0.15Ω - 2KΩ
0.2Ω - 2KΩ
1Ω - 250Ω
0.2Ω - 2KΩ
1Ω - 250Ω
-
-
-
-
-
-
-
-
-
CB 2
2W
-
CB 3
3W
-
CB 5
5W
-
CB 7
7W
-
CB 10
10W
-
CB 15
15W
-
CB 20
20W
-
CB 22
22W
-
CB 25
25W
-
CB 30
30W
-
WCB 2
2W
1Ω - 5KΩ
WCB 3
3W
1Ω - 10KΩ
WCB 5
5W
1Ω - 10KΩ
WCB 7
7W
1Ω - 15KΩ
10W
1Ω - 20KΩ
WCB 10
WCB 15
15W
1Ω - 20KΩ
MCB 3
3W
-
MCB 5
5W
-
MCB 7
7W
-
Resistance Temperature Coefficient Standard:
CB series: ±800ppm below 1Ω & ±300ppm for 1Ω and above;
WCB series: ±50ppm from 1Ω to 10Ω & ±20ppm above 10Ω;
MCB series: ±200ppm
How to Order
SEI Type
Code
Nominal
Resistance
Tolerance
Packaging
CB
Code
Description
CB
Standard
WCB
MCB
CBF
WCBF With standoff
MCBF
NWCB Non inductive
Non inductive
NWCBF
with standoff
2
5
10
20
25
1/2
Code
3
7
15
22
30
100
5%
Tolerance
1%
1%
5%
10%
R
SEI Types
CB 2, CB 3, CB 5, MCB 3, MCB 5
WCB 2, WCB 3, WCB 5
CB 7, CB 10, CB 15, WCB 7,
WCB 10, WCB 15, MCB 7
CB 20, CB 22, CB 25, CB 30
Pkg Qty
750
500
250
100
Description
Code
Bulk
B
Rev Date: 10/07/2009
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
81
www.seielect.com
marketing@seielect.com
CB Series
Ceramic Housed Wirewound with Axial Leads
Stackpole Electronics, Inc.
Resistive Product Solutions
Mechanical Specifications
Type / Code
Tolerance
CB 2
CB 3
CB 5
CB 7
CB 10
CB 15
CB 20
CB 22
CB 25
CB 30
WCB 2
WCB 3 / MCB 3
WCB 5 / MCB 5
WCB 7 / MCB 7
WCB 10
WCB 15
A
±0.039
±1
0.709
18.0
0.866
22.0
0.866
22.0
1.378
35.0
1.890
48.0
1.890
48.0
2.362
60.0
2.500
63.5
2.362
60.0
2.500
63.5
0.700
17.8
0.875
22.2
0.875
22.2
1.400
35.6
1.875
47.6
1.875
47.6
B
±0.039
±1
0.276
7.0
0.312
8.0
0.394
10.0
0.394
10.0
0.394
10.0
0.492
12.5
0.571
14.5
0.500
12.7
0.571
14.5
0.625
15.9
0.245
6.2
0.312
7.9
0.375
9.5
0.375
9.5
0.375
9.5
0.500
12.7
C
±0.039
±1
0.276
7.0
0.312
8.0
0.394
10.0
0.394
10.0
0.394
10.0
0.492
12.5
0.531
13.5
0.500
12.7
0.531
13.5
0.625
15.9
0.255
6.5
0.312
7.9
0.375
9.5
0.375
9.5
0.375
9.5
0.500
12.7
D
±0.002
±0.05
0.025
0.7
0.032
0.8
0.032
0.8
0.032
0.8
0.032
0.8
0.032
0.8
0.032
0.8
0.036
0.9
0.032
0.8
0.036
0.9
0.032
0.8
0.032
0.8
0.032
0.8
0.036
0.9
0.036
0.9
0.036
0.9
E
±0.031
±0.8
0.300
7.6
0.375
9.5
0.437
11.1
0.500
12.7
0.500
12.7
0.625
15.9
0.625
15.9
0.625
15.9
0.625
15.9
-
0.300
7.6
0.375
9.5
0.437
11.1
0.500
12.7
0.500
12.7
0.625
15.9
Units
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
Rev Date: 10/07/2009
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
82
www.seielect.com
marketing@seielect.com
CB Series
Ceramic Housed Wirewound with Axial Leads
Stackpole Electronics, Inc.
Resistive Product Solutions
Performance Characteristics
Test
Moisture Resistance
Thermal Shock
Load Life @ 70°C - 1,000 hrs.
Resistance to Soldering Heat
Short Time Overload - 5xPn for 5sec
Dielectric Withstanding Voltage
Operating Temperature Range: -55°C to +275°C
Test Results
± 5%
± 2%
± 5%
± 2%
± 2%
± 2%
Rev Date: 10/07/2009
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
83
www.seielect.com
marketing@seielect.com
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