CF/CFM Series
Carbon Film Resistor
Features:
•
•
•
•
•
•
•
•
•
•
Stackpole Electronics, Inc.
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 and halogen-free
Electrical Specifications
Type/Code
CF18
CF14
CF12
CF1
CF2
CFM14
CFM12
CFM1
Power Rating
(Watts) @ 70ºC
0.125W
0.25W
0.5W
1W
2W
0.25W
0.5W
1W
Maximum
Working
(1)
Voltage
250V
350V
350V
500V
500V
250V
350V
600V
Maximum
Overload
Voltage
500V
600V
700V
1,000V
1,000V
500V
600V
1,000V
Dielectric
Withstanding
Voltage
350V
350V
600V
600V
600V
350V
350V
600V
<10Ω = ±400ppm/ºC
10Ω to 9.99KΩ = 0 ~ -400ppm/ºC
10KΩ to 99KΩ = 0 ~ -500ppm/ºC
100KΩ to 999KΩ = 0 ~ -850ppm/ºC
1MΩ and above = 0 ~ -1500ppm/ºC
1 - 1M
1 - 10M
Resistance Temperature Coefficient
per Ohmic Range
Ohmic Range (Ω)
and Tolerance
2%
10 - 1M
1 - 1M
10 - 1M
1 - 22M
5%
(1) Lesser of √P*R or maximum working voltage.
Mechanical Specifications
Type/Code
CF/CFQ18
CF/CFQ14
CF/CFQ12
CF/CFQ1
CF/CFQ2
CFM/CFQM14
CFM/CFQM12
CFM/CFQM1
A
Body Length
0.130 ± 0.012
3.30 ± 0.30
0.236 ± 0.012
6.00 ± 0.30
0.335 ± 0.039
8.50 ± 1.00
0.433 ± 0.039
11.00 ± 1.00
0.591 ± 0.039
15.00 ± 1.00
0.130 ± 0.012
3.30 ± 0.30
0.236 ± 0.012
6.00 ± 0.30
0.354 ± 0.020
9.00 ± 0.50
B
Body Diameter
0.067 ± 0.012
1.70 ± 0.30
0.091 ± 0.012
2.30 ± 0.30
0.106 ± 0.020
2.70 ± 0.50
0.177 ± 0.020
4.50 ± 0.50
0.197 ± 0.020
5.00 ± 0.50
0.067 ± 0.012
1.70 ± 0.30
0.091 ± 0.012
2.30 ± 0.30
0.138 ± 0.020
3.50 ± 0.50
C
Lead Length(Bulk)
1.102 ± 0.118
28.00 ± 3.00
1.102 ± 0.118
28.00 ± 3.00
1.102 ± 0.118
28.00 ± 3.00
1.181 ± 0.118
30.00 ± 3.00
1.339 ± 0.157
34.00 ± 4.00
1.102 ± 0.118
28.00 ± 3.00
1.102 ± 0.118
28.00 ± 3.00
1.102 ± 0.118
28.00 ± 3.00
D - Lead Diameter
CF/CFM
0.016 ± 0.003
0.40 ± 0.08
0.022 ± 0.003
0.55 ± 0.08
0.022 ± 0.003
0.55 ± 0.08
0.031 ± 0.004
0.80 ± 0.10
0.031 ± 0.004
0.80 ± 0.10
0.016 ± 0.003
0.40 ± 0.08
0.022 ± 0.003
0.55 ± 0.08
0.028 ± 0.002
0.70 ± 0.05
D - Lead Diameter
CFQ/CFQM
0.018 ± 0.003
0.45 ± 0.08
0.022 ± 0.003
0.55 ± 0.08
0.028 ± 0.004
0.70 ± 0.10
0.031 ± 0.004
0.80 ± 0.10
0.031 ± 0.004
0.80 ± 0.10
0.018 ± 0.003
0.45 ± 0.08
0.022 ± 0.003
0.55 ± 0.08
0.028 ± 0.002
0.70 ± 0.05
Unit
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
Rev Date: 06/27/2018
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
CF/CFM Series
Carbon Film Resistor
Stackpole Electronics, Inc.
Resistive Product Solutions
Performance Characteristics
Test
Current Noise
Short Time Overload
Resistance to Solder Heat
Rapid Change of Temperature
Endurance at 70°C
Terminal Strength
Damp Heat (Steady state)
Test Method
MIL-STD 202, Method 308
JIS C5201-1, IEC60115-1, 4.13
JIS C5201-1, IEC60115-1, 4.18
JIS C5201-1, IEC60115-1, 4.19
JIS C5201-1, IEC60115-1, 4.25.1
MIL-STD 202, Method 211
JIS C5201-1, IEC60115-1, 4.24
1Ω
~
91KΩ
0.15μV/V
Typical Result
100KΩ
~
910KΩ
0.32μV/V
<± 0.25%
<± 0.3%
<± 0.3%
<± 1.0%
<± 0.20%
<± 1.5%
1MΩ
~
22MΩ
0.54μV/V
1Ω
~
91KΩ
0.2μV/V
Test Limit
100KΩ
~
910KΩ
0.4μV/V
≤±
(0.75% + 0.05Ω)
≤± (0.50% + 0.05Ω)
≤± (1.00% + 0.05Ω)
R<100KΩ:
≤±
(2.0% + 0.05Ω)
R≥100KΩ:
≤±
(3.0% + 0.05Ω)
≤± (0.50% + 0.05Ω)
R<100KΩ:
≤±
(3.0% + 0.05Ω)
R≥100KΩ:
≤±
(5.0% + 0.05Ω)
1MΩ
~
22MΩ
0.6μV/V
Operating Temperature Range: -55°C to +155°C
Power Derating Curve:
100
80
-55ºC
70ºC
Power Load (%)
60
40
20
155ºC
0
-60
0
20
40
60
80
100
120
140
160
180
Single Pulse Power:
10K
Ambient Temperature (ºC)
Pulse Applied Wattages (W)
1K
CF2 1140W
CF1, CFM1 570W
CF12 430W
CFM12, CF14 285W
CFM14, CF18 115W
100
10
1
1μ
10μ
100μ
1m
10m
100m
1
Pulse Duration (sec)
Typical performance for reference only.
Rev Date: 06/27/2018
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
CF/CFM Series
Carbon Film Resistor
Repetitive Pulse Data:
Stackpole Electronics, Inc.
Resistive Product Solutions
If repetitive pulses are applied to resistors, pulse wave form must be less than “Pulse limiting voltage”, “Pulse
limiting current” or “Pulse limiting wattage” calculated by the formula below.
Vp
lp
Pp
=
=
=
K√P x R x T/t
K√P/R x T/t
K
2
x P x T/t
Where:
Vp:
lp:
Pp:
P:
R:
T:
t:
K:
[Vr:
Pulse limiting voltage (V)
Pulse limiting current (A)
Pulse limiting wattage (W)
Power rating (W)
Nominal resistance (ohm)
Repetitive period (sec)
Pulse duration (sec)
Coefficient by resistors type (refer to below matrix)
Rated Voltage (V), Ir: Rated Current (A)]
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
Note 6:
If T>10 → T = 10 (sec), T/t>1000 → T/t = 1000
If T>10 and T/t>1000, “Pulse Limiting power (Single pulse) is applied
If Vp<Vr (lp<lr or Pp<P), Vr (lr, P) is Vp (lp, Pp)
Pulse limiting voltage (Current, Wattage) is applied at less than rated ambient temperature. If
ambient temperature is more than the rated temperature (70°C), please decrease power rating
according to “Power Derating Curve”
Please assure sufficient margin for use period and conditions for “Pulse limiting voltage”
If the pulse waveform is not square wave, please judge after transform the waveform into square
wave according to the “Waveform Transformation to Square Wave”.
Coefficient (K) Matrix
Resistor Type
RNF, RNMF
CF, CFM, HDM
ASR, SPR, ASRM, SPRM
RSPF, RSPL
RSF, RSMF
FRN
K
0.7
0.8
1.0
0.9
0.8
0.6
Rev Date: 06/27/2018
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
CF/CFM Series
Carbon Film Resistor
Waveform Transformation to Square Wave
Stackpole Electronics, Inc.
Resistive Product Solutions
1. Discharge curve wave with time constant “t”
Square wave
2. Damping oscillation wave with time constant of envelope “t”
Square wave
3. Half-wave rectification wave
Square wave
4. Triangular wave
Square wave
5. Special wave
Square wave
Rev Date: 06/27/2018
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
4
www.seielect.com
marketing@seielect.com
CF/CFM Series
Carbon Film Resistor
Current Noise:
Current Noice (
µV/V)
0.8
0.6
0.4
0.2
0
Stackpole Electronics, Inc.
Resistive Product Solutions
1K
10K
100K
1M
10M
Nominal Resistance (Ω)
Packaging Specifications
Type/Code
CF18, CFM14
CF14, CFM12
CF12, CFM1
CF1
CF2
Class
I
I
I
I
I
Tape
0.250
6.35
0.250
6.35
0.250
6.35
0.250
6.35
0.250
6.35
A Max
(1).
B Max
13.504
343.00
13.504
343.00
13.504
343.00
13.504
343.00
13.504
343.00
0.197
5.00
0.197
5.00
0.197
5.00
0.197
5.00
0.394
10.00
C
±
±
±
±
±
±
±
±
±
±
0.020
0.50
0.020
0.50
0.020
0.50
0.020
0.50
0.020
0.50
D
(2)
2.063
52.40
2.063
52.40
2.063
52.40
2.063
52.40
2.063
52.40
±
±
±
±
±
±
±
±
±
±
0.079
2.00
0.079
2.00
0.079
2.00
0.079
2.00
0.079
2.00
Unit
inches
mm
inches
mm
inches
mm
inches
mm
inches
mm
2.508
63.70
2.638
67.00
2.736
69.50
2.972
75.50
3.130
79.50
This is a non-critical dimension that does not have a tolerance in the standard.
Range of diameters is from 0.547 inches (13.90 mm) to 1.500 inches (38.10 mm).
(1) Reference value only. The "A" dimension shall be governed by the overall length of the taped component.
The distance between flanges shall be 0.059 inches (1.50 mm) to 0.315 (8.00 mm) greater than the overall component.
(2) The given dimension "D" expresses the standard width spacing. A 26mm narrow spacing is available as option "N" packaging code.
Contact factory for more details.
Dimension "E":
Rev Date: 06/27/2018
This specification may be changed at any time without prior notice
Please confirm technical specifications before you order and/or use.
5
www.seielect.com
marketing@seielect.com
