CB Series
Ceramic Housed with Axial Leads Wirewound Resistor
Features:
•
•
•
•
•
Fireproof power wirewound
High thermal conductivity
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
Ohmic Range(Ω) and Tolerance
0.5%
-
-
-
-
-
-
-
-
-
-
1 - 5K
1 - 10K
1 - 10K
1 - 15K
1 - 20K
1 - 20K
-
-
-
1%
-
-
-
-
-
-
-
-
-
-
0.1 - 5K
0.1 - 10K
0.1 - 10K
0.1 - 15K
0.1 - 20K
0.1 - 20K
-
-
-
5%
0.1 - 300
0.1 - 680
0.1 - 680
0.1 - 1.5K
0.1 - 2K
0.15 - 2K
0.2 - 2K
1 - 250
0.2 - 2K
1 - 250
0.1 - 5K
0.1 - 10K
0.1 - 10K
0.1 - 15K
0.1 - 20K
0.1 - 20K
1 - 500K
1 - 500K
1 - 500K
10%
0.1 - 300
0.1 - 680
0.1 - 680
0.1 - 1.5K
0.1 - 2K
0.15 - 2K
0.2 - 2K
1 - 250
0.2 - 2K
1 - 250
-
-
-
-
-
-
-
-
-
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
WCB 3
3W
WCB 5
5W
WCB 7
7W
WCB 10
10W
WCB 15
15W
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 0.1Ω to 10Ω & ±20ppm above 10Ω;
MCB series: ±200ppm
Percent Rated Power (%)
Power Derating Curve:
120
100
80
60
40
20
25
75
125
175
225
275
325
Ambient Temperature (ºC)
Rev Date: 01/25/2011
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
1
www.seielect.com
marketing@seielect.com
CB Series
Ceramic Housed with Axial Leads Wirewound Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Mechanical Specifications
Type / Code
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
0.709 ± 0.039
18.0 ± 1.0
0.866 ± 0.039
22.0 ± 1.0
0.866 ± 0.039
22.0 ± 1.0
1.378 ± 0.039
35.0 ± 1.0
1.89 ± 0.039
48.0 ± 1.0
1.89 ± 0.039
48.0 ± 1.0
2.362 ± 0.039
60.0 ± 1.0
2.5 ± 0.039
63.5 ± 1.0
2.362 ± 0.039
60 ± 1
2.5 ± 0.039
63.5 ± 1.0
0.7 ± 0.039
17.8 ± 1.0
0.875 ± 0.039
22.2 ± 1.0
0.875 ± 0.039
22.2 ± 1.0
1.4 ± 0.039
35.6 ± 1.0
1.875 ± 0.039
47.6 ± 1.0
1.875 ± 0.039
47.6 ± 1.0
B
0.276 ± 0.039
7.0 ± 1.0
0.312 ± 0.039
8.0 ± 1.0
0.394 ± 0.039
10.0 ± 1.0
0.394 ± 0.039
10.0 ± 1.0
0.394 ± 0.039
10.0 ± 1.0
0.492 ± 0.039
12.5 ± 1.0
0.571 ± 0.039
14.5 ± 1.0
0.5 ± 0.039
12.7 ± 1.0
0.571 ± 0.039
14.5 ± 1.0
0.625 ± 0.039
15.9 ± 1.0
0.245 ± 0.039
6.2 ± 1.0
0.312 ± 0.039
7.9 ± 1.0
0.375 ± 0.039
9.5 ± 1.0
0.375 ± 0.039
9.5 ± 1.0
0.375 ± 0.039
9.5 ± 1.0
0.5 ± 0.039
12.7 ± 1.0
C
0.276 ± 0.039
7.0 ± 1.0
0.312 ± 0.039
8.0 ± 1.0
0.394 ± 0.039
10.0 ± 1.0
0.394 ± 0.039
10.0 ± 1.0
0.394 ± 0.039
10.0 ± 1.0
0.492 ± 0.039
12.5 ± 1.0
0.531 ± 0.039
13.5 ± 1.0
0.5 ± 0.039
12.7 ± 1.0
0.531 ± 0.039
13.5 ± 1.0
0.625 ± 0.039
15.9 ± 1.0
0.255 ± 0.039
6.5 ± 1.0
0.312 ± 0.039
7.9 ± 1.0
0.375 ± 0.039
9.5 ± 1.0
0.375 ± 0.039
9.5 ± 1.0
0.375 ± 0.039
9.5 ± 1.0
0.5 ± 0.039
12.7 ± 1.0
D
0.025 ± 0.002
0.65 ± 0.05
0.032 ± 0.002
0.81 ± 0.05
0.032 ± 0.002
0.81 ± 0.05
0.032 ± 0.002
0.81 ± 0.05
0.032 ± 0.002
0.81 ± 0.05
0.032 ± 0.002
0.81 ± 0.05
0.032 ± 0.002
0.81 ± 0.05
0.036 ± 0.002
0.91 ± 0.05
0.032 ± 0.002
0.81 ± 0.05
0.036 ± 0.002
0.91 ± 0.05
0.032 ± 0.002
0.81 ± 0.05
0.032 ± 0.002
0.81 ± 0.05
0.032 ± 0.002
0.81 ± 0.05
0.036 ± 0.002
0.91 ± 0.05
0.036 ± 0.002
0.91 ± 0.05
0.036 ± 0.002
0.91 ± 0.05
E
0.3 ± 0.039
7.6 ± 1.0
0.375 ± 0.039
9.5 ± 1.0
0.437 ± 0.039
11.1 ± 1.0
0.5 ± 0.039
12.7 ± 1.0
0.5 ± 0.039
12.7 ± 1.0
0.625 ± 0.039
15.9 ± 1.0
0.625 ± 0.039
15.9 ± 1.0
0.625 ± 0.039
15.9 ± 1.0
0.625 ± 0.039
15.9 ± 1.0
-
0.3 ± 0.039
7.6 ± 1.0
0.375 ± 0.039
9.5 ± 1.0
0.437 ± 0.039
11.1 ± 1.0
0.5 ± 0.039
12.7 ± 1.0
0.5 ± 0.039
12.7 ± 1.0
0.625 ± 0.039
15.9 ± 1.0
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
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: 01/25/2011
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
2
www.seielect.com
marketing@seielect.com
CB Series
Ceramic Housed with Axial Leads Wirewound Resistor
How to Order
SEI Type
Code
Nominal
Resistance
Tolerance
Stackpole Electronics, Inc.
Resistive Product Solutions
Packaging
CB
Code
CB
WCB
MCB
CBF
WCBF
MCBF
NCB
NCBF
Description
Standard
2
Code
2
3
5
7
10
15
20
22
25
30
100
5%
Tolerance
0.5%
1%
5%
10%
B
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
With standoff
Non inductive
Non inductive
with standoff
New part number format starting January 3
rd
, 2011:
How to Order
1
2
3
4
5
6
7
8
9
C
Product Series
CB
WCB
MCB
CBF
WCBF
MCBR
NCB
NCBF
Standard
B
Series Code
2
3
5
7
10
CB
15
20
22
25
30
2
3
5
WCB
7
10
15
3
MCB
5
7
2
Power
2W
3W
5W
7W
10W
15W
20W
22W
25W
30W
2W
3W
5W
7W
10W
15W
3W
5W
7W
J
B
1
0
0
R
Resistance Value
Quantity
750
500
250
100
Four characters with
the multiplier used as
the decimal holder.
0.1 ohm = R100
33 ohm = 33R0
3.32 Kohm = 3K32
With standoff
Non-inductive
Non-inductive with standoff
Tolerance
Tol
Code
0.5%
D
1%
F
5%
J
10%
K
Code Description
B
bulk
Packaging
Size
CB 2, 3, 5
MCB 3, 5
WCB 2, 3, 5
CB 7, 10, 15
WCB 7, 10, 15
MCB 7
CB 20, 22, 25, 30
Rev Date: 01/25/2011
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
3
www.seielect.com
marketing@seielect.com
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