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
-
-
-
-
-
-
-
-
-
CB2
2W
CB3
3W
CB5
5W
CB7
7W
CB10
10W
15W
CB15
CB20
20W
CB22
22W
CB25
25W
CB30
30W
WCB2
2W
WCB3
3W
WCB5
5W
WCB7
7W
WCB10
10W
WCB15
15W
MCB3
3W
MCB5
5W
MCB7
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
120
Power Derating Curve:
Percent Rated Power (%)
100
80
60
40
20
25
75
125
175
225
275
325
Ambient Temperature (ºC)
Rev Date: 06/29/2011
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
CB2
CB3
CB5
CB7
CB10
CB15
CB20
CB22
CB25
CB30
WCB2
WCB3 / MCB3
WCB5 / MCB5
WCB7 / MCB7
WCB10
WCB15
A
Body Length
0.700 ± 0.039
17.8 ± 1.0
0.875 ± 0.039
22.2 ± 1.0
0.875 ± 0.039
22.2 ± 1.0
1.400 ± 0.039
35.6 ± 1.0
1.875 ± 0.039
47.6 ± 1.0
1.875 ± 0.039
47.6 ± 1.0
2.500 ± 0.039
63.5 ± 1.0
2.500 ± 0.039
63.5 ± 1.0
2.500 ± 0.039
63.5 ± 1.0
2.500 ± 0.039
63.5 ± 1.0
0.700 ± 0.039
17.8 ± 1.0
0.875 ± 0.039
22.2 ± 1.0
0.875 ± 0.039
22.2 ± 1.0
1.400 ± 0.039
35.6 ± 1.0
1.875 ± 0.039
47.6 ± 1.0
1.875 ± 0.039
47.6 ± 1.0
B
Height
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
0.500 ± 0.039
12.7 ± 1.0
0.500 ± 0.039
12.7 ± 1.0
0.500 ± 0.039
12.7 ± 1.0
0.500 ± 0.039
12.7 ± 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
0.500 ± 0.039
12.7 ± 1.0
C
Width
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
0.500 ± 0.039
12.7 ± 1.0
0.500 ± 0.039
12.7 ± 1.0
0.500 ± 0.039
12.7 ± 1.0
0.500 ± 0.039
12.7 ± 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
0.500 ± 0.039
12.7 ± 1.0
D
Lead Diameter
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
0.036 ± 0.002
0.91 ± 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
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
Height with
Standoff
0.300 ± 0.039
7.6 ± 1.0
0.375 ± 0.039
9.5 ± 1.0
0.437 ± 0.039
11.1 ± 1.0
0.500 ± 0.039
12.7 ± 1.0
0.500 ± 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
-
0.300 ± 0.039
7.6 ± 1.0
0.375 ± 0.039
9.5 ± 1.0
0.437 ± 0.039
11.1 ± 1.0
0.500 ± 0.039
12.7 ± 1.0
0.500 ± 0.039
12.7 ± 1.0
0.625 ± 0.039
15.9 ± 1.0
F
Lead Length
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
1.5 ± 0.25
0.059 ± 0.01
Unit
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: 06/29/2011
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
1
2
3
4
5
6
Stackpole Electronics, Inc.
Resistive Product Solutions
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
Legacy Part Number (before January 3, 2011):
SEI Type
Code
Nominal
Resistance
Tolerance
Packaging
CB
Code
CB
WCB
MCB
CBF
WCBF
MCBF
NCB
NCBF
Description
Standard
2
5
10
20
25
2
Code
3
7
15
22
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
Rev Date: 06/29/2011
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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