Rev Date: 10/23/2012 1 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.
CF/CFM Series
Carbon Film Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
2% 5%
CF18 0.125W 250V 500V 350V 10 - 1M 1 - 22M
CF14 0.25W 350V 600V 350V <10Ω= ±400ppm/ºC 1 - 1M 1 - 22M
CF12 0.5W 350V 700V 600V 10Ω to 9.99KΩ= 0 ~ -400ppm/ºC 10 - 1M 1 - 22M
CF1 1W 500V 1,000V 600V 10KΩ to 99KΩ= 0 ~ -500ppm/ºC 1 - 1M 1 - 10M
CF2 2W 500V 1,000V 600V 100KΩ to 999KΩ= 0 ~ -850ppm/ºC 10 - 1M 1 - 10M
CFM14 0.25W 250V 500V 350V 1MΩ and above = 0 ~ -1500ppm/ºC 10 - 1M 1 - 10M
CFM12 0.5W 350V 600V 350V 10 - 1M 1 - 10M
CFM1 1W 600V 1,000V 600V 10 - 1M 1 - 10M
(1) Lesser of √PR or maximum working voltage.
Resistance Temperature Coefficient
per Ohmic Range
Ohmic Range (Ω)
and Tolerance
Maximum
Overload
Voltage
Dielectric
Withstanding
Voltage
Type / Code Power Rating
(Watts) @ 70ºC
Maximum
Working
Voltage (1)
0.130 ± 0.012 0.067 ± 0.012 1.102 ± 0.118 0.018 ± 0.003 inches
3.30 ± 0.30 1.70 ± 0.30 28.00 ± 3.00 0.45 ± 0.08 mm
0.256 ± 0.020 0.091 ± 0.012 1.102 ± 0.118 0.022 ± 0.003 inches
6.50 ± 0.50 2.30 ± 0.30 28.00 ± 3.00 0.55 ± 0.08 mm
0.335 ± 0.039 0.106 ± 0.020 1.181 ± 0.118 0.022 ± 0.002 inches
8.50 ± 1.00 2.70 ± 0.50 30.00 ± 3.00 0.56 ± 0.05 mm
0.433 ± 0.039 0.177 ± 0.020 1.181 ± 0.118 0.028 ± 0.004 inches
11.00 ± 1.00 4.50 ± 0.50 30.00 ± 3.00 0.70 ± 0.10 mm
0.591 ± 0.039 0.197 ± 0.020 1.339 ± 0.157 0.031 ± 0.004 inches
15.00 ± 1.00 5.00 ± 0.50 34.00 ± 4.00 0.80 ± 0.10 mm
0.130 ± 0.012 0.067 ± 0.012 1.102 ± 0.118 0.018 ± 0.003 inches
3.30 ± 0.30 1.70 ± 0.30 28.00 ± 3.00 0.45 ± 0.08 mm
0.256 ± 0.039 0.091 ± 0.012 1.102 ± 0.118 0.022 ± 0.003 inches
6.50 ± 1.00 2.30 ± 0.30 28.00 ± 3.00 0.55 ± 0.08 mm
0.354 ± 0.020 0.138 ± 0.020 1.102 ± 0.118 0.024 ± 0.002 inches
9.00 ± 0.50 3.50 ± 0.50 28.00 ± 3.00 0.60 ± 0.05 mm
D
Lead Diameter
CF14
CFM14
CFM1
CF12
CF1
CFM12
CF2
Type / Code Unit
CF18
A
Body Length
B
Body Diameter
C
Lead Length(Bulk)
Features:
•
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
Mechanical Specifications
Rev Date: 10/23/2012 2 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.
CF/CFM Series
Carbon Film Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
EIA-RS-172-B 3.2.6 ± 0.5%
MIL-STD 202 Method 210 ± 0.5%
JIS C 5202 5.6 ± 0.5%
MIL-STD 202 Method 108 ± 1%
MIL-STD 202 Method 211 ± 0.2%
MIL-STD 202 Method 106 ± 0.5%
Resistance to Solder Heat
Dielectric Withstanding Voltage
Test Test Results
Short Time Overload
Standard / Method
Operating Temperature Range: -55°C to +155°C
Moisture Resistance
Load Life
Terminal Strength
0
160 180
-60
100
-55ºC 70ºC
155ºC
80 100 120 1400 20 40 60
20
-40 -20
Ambient Temperature (ºC)
80
60
40
Power Load (%)
Power Derating Curve:
Performance Characteristics
Rev Date: 10/23/2012 3 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.
CF/CFM Series
Carbon Film Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
1 2 3 4 5 6 7 8 9 10
C F 1 2 J T 1 0 0 K
Size
Code
Quantity
CF
18
Code
CFF 14 G
CFM 12 J
PCF 1
PCFM 2
CFQ
2,500
CFQM
2,000
1,000
5,000
2,000
1,000
Ammo
CF18, CFM14, CF14, CFM12
T
CF1, CF2
CF1
CF2
Tape and Reel
A
5,000
CFM1
CF18, CFM14, CF14,
CFM12, CF12, PCF14, PCFM12 10 ohm = 10R0
CF12, CFM1, PCF14, PCFM12
PCFQ Tin plating on copper wire
Panasert
1W
Tin plating (mini)
2WPanasert CF12
Tin plating on copper wire
Panasert CF14
1,000
0.25W
Product Series Description Size
Four characters with
the multiplier used as
the decimal holder.
CF18, CFM14, CF14, CFM12
CF12, CFM1, CF1, CF2
Power Rating Tolerance Resistance Value
Bulk
0.125W
2% B
0.5W 5%
Standard
Flameproof
Mini
Tol
10.2 Kohm = 10K2
1 Mohm = 1M00
Nominal
Resistance
Tolerance
100K 5%
Code Description Code Wattage
Tolerance
Code A R T
CF Standard 1/8 0.125W 2%
CFF Flameproof 1/4 0.25W 5%
CFM Mini 1/2 0.5W
PCF Panasert CF 1/4 1 1W CF 1/8
PCFM Panasert CF 1/2 2 2W CFM 1/4
CFQ Tin plating on copper wire CF 1/4
CFQM Tin plating (mini) CFM 1/2
CF 1/2
1,000
5,000
2,000
CFM 1
1,000
2,500
2,000
CF 1
1,000
2,000
1,000
CF 2
1,000
1,000
1,000
PCF 1/4
PCFM 1/2
PCFQ Tin plating on copper wire
Panasert
1,000 5,000 5,000
Tape & Box
(Ammo Box)
Tape & Reel
SEI Type Code
CF 1/2
N/A
Packaging
5,000 2,000
R
SEI Types Bulk
Legacy Part Number (before January 3, 2011):
How to Order
