CF/CFM Series
Stackpole Electronics, Inc.
Carbon Film Resistors
Features:
•
•
•
•
•
•
•
•
•
•
Resistive Product Solutions
General purpose resistor ideal for commercial/industrial
applications
Flame retardant coatings standard
Flameproof version available as CFF
Panasert available on selected sizes; contact factory
Auto sequencing/insertion compatible
CFM (mini) ideal choice when size constraints apply
Cut and formed product is available on select sizes; contact
factory
Standard lead wire for CF/CFM is copper plated steel, with
100% tin over plate
100% tin plate on copper wire is available as type
CFQ/CFQM
RoHS compliant / lead-free
Electrical Specifications
Type / Code
Power Rating
(Watts) @ 70ºC
Maximum Working
Voltage (1)
Maximum Overload
Voltage
CF 1/8
0.125W
250V
500V
CF 1/4
0.250W
350V
600V
CF 1/2
0.500W
350V
CF 1
1.000W
500V
CF 2
2.000W
500V
CFM 1/4
0.250W
CFM 1/2
0.500W
CFM 1
1.000W
Ohmic Range (Ω) and Tolerance
Dielectric Withstanding
Voltage
2%
5%
350V
10 - 1M
1 - 22M
350V
1 - 1M
1 - 22M
700V
600V
10 - 1M
1 - 10M
1,000V
600V
1 - 1M
1 - 10M
1,000V
600V
10 - 1M
1 - 10M
250V
500V
350V
10 - 1M
1 - 10M
350V
600V
350V
10 - 1M
1 - 10M
600V
1,000V
600V
10 - 1M
1 - 10M
(1) Lesser of √PR or maximum working voltage.
How to Order
SEI Type
Code
Nominal
Resistance
Tolerance
Packaging
CF
1/2
100K
5%
R
Code
Description
CF
Standard
CFF
Flameproof
CFM
Mini
PCF
Panasert CF 1/4
PCFM
Panasert CF 1/2
CFQ Tin plating on copper wire
CFQM
Tin plating (mini)
Code
1/8
1/4
1/2
1
2
Wattage
0.125W
0.250W
0.500W
1.000W
2.000W
Rev Date: 12/14/2009
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
Tolerance
2%
5%
R
SEI Types
CF 1/8
CF 1/4
CF 1/2
CF 1
CF 2
CFM 1/4
CFM 1/2
CFM 1
PCF 1/4
PCFM 1/2
67
Tape &
Reel
A
Bulk
T
P
Tape & Box Panasert &
Reel
(Ammo Box)
Q
Panasert &
Box
(Ammo Box)
5,000
5,000
2,000
1,000
2,000
1,000
5,000
1,000
N/A
N/A
5,000
2,000
5,000
N/A
www.seielect.com
marketing@seielect.com
