Rev Date: 01/28/2010 81 www.seielect.com
This specification may be changed at any time without prior notice marketing@seielect.com
Please confirm technical specifications before you order and/or use.
CB Series
Ceramic Housed Wirewound with Axial Leads
Stackpole Electronics, Inc.
Resistive Product Solutions
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
0.5% 1% 5% 10%
CB 2 2 - - 0.1 - 300 0.1 - 300
CB 3 3 - - 0.1 - 680 0.1 - 680
CB 5 5 - - 0.1 - 680 0.1 - 680
CB 7 7 - - 0.1 - 1.5K 0.1 - 1.5K
CB 10 10 - - 0.1 - 2K 0.1 - 2K
CB 15 15 - - 0.15 - 2K 0.15 - 2K
CB 20 20 - - 0.2 - 2K 0.2 - 2K
CB 22 22 - - 1 - 250 1 - 250
CB 25 25 - - 0.2 - 2K 0.2 - 2K
CB 30 30 - - 1 - 250 1 - 250
WCB 2 2 1 - 5K 1 - 5K 1 - 5K -
WCB 3 3 1 - 10K 1 - 10K 1 - 10K -
WCB 5 5 1 - 10K 1 - 10K 1 - 10K -
WCB 7 7 1 - 15K 1 - 15K 1 - 15K -
WCB 10 10 1 - 20K 1 - 20K 1 - 20K -
WCB 15 15 1 - 20K 1 - 20K 1 - 20K -
MCB 3 3 - - 1 - 500K -
MCB 5 5 - - 1 - 500K -
MCB 7 7 - - 1 - 500K -
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
Ohmic Range(Ω) and Tolerance
Type / Code Power Rating
(Watts) @ 70ºC
Electrical Specifications
Nominal
Resistance Tolerance
100 5%
Code Description Tolerance SEI Types Pkg Qty Description Code
CB 2 3 0.5% CB 2, CB 3, CB 5, MCB 3, MCB 5 750
WCB 5 7 1% WCB 2, WCB 3, WCB 5 500
MCB 10 15 5%
CBF 20 22 10%
WCBF 25 30 CB 20, CB 22, CB 25, CB 30 100
MCBF
NWCB Non inductive
NWCBF Non inductive
with standoff
Bulk B
CB 2 B
Code
Standard
With standoff
CB 7, CB 10, CB 15, WCB 7,
WCB 10, WCB 15, MCB 7 250
SEI Type Code Packaging
How to Order