www.vishay.com
34
CPF
Vishay Dale
Document Number 31021
Revision 24-Jul-02
For Technical Questions, contact ff2bresistors@vishay.com
Metal Film Resistors, Industrial, Power, Flameproof
FEATURES
• High power rating, small size
• Flameproof, high temperature coating
• Special filming and coating processes
• Excellent high frequency characteristics
• Low noise
• Low voltage coefficient
STANDARD ELECTRICAL SPECIFICATIONS
MODEL
POWER
LIMITING RESISTANCE RANGE ΩTOLERANCE TEMPERATURE
RATING
ELEMENT VS BEST AVAILABLE TOLERANCE / TC COEFFICIENT
P70°CVOLTAGE MAX. ± 2% ± 1% ± 0.5% ± 0.1%
WV쓖 T - 00 T - 0 T - 1 T-2 / T-9 ± % ppm/°C
CPF - 1 1 250 R1 - 150K R5 - 150K 1R - 150K 5R - 150K 0.1, 0.25, 0.5, 1, 5 200, 150, 100, 50, 25
CPF - 2 2 350 R1 - 150K R5 - 150K 1R - 150K 5R - 150K 0.1, 0.25, 0.5, 1, 5 200, 150, 100, 50, 25
CPF - 3 3 500 R1 - 150K 1R - 150K 1R - 150K 8R - 150K 0.1, 0.25, 0.5, 1, 5 200, 150, 100, 50, 25
CPF - 1 5620 F T - 1
MODEL RESISTANCE VALUE ΩTOLERANCE TEMPERATURE COEFFICIENT
CPF 1 B = ± 0.1% T - 00 = ± 200ppm˚/C
CPF 2 C = ± 0.25% T - 0 = ± 150ppm˚/C
CPF 3 D = ± 0.5% T - 1 = ± 100ppm˚/C
F = ± 1% T - 2 = ± 50ppm˚/C
G = ± 2% T - 9 = ± 25ppm˚/C
J = ± 5%
First three digits are significant
(two for a 5% tolerance). Last
digit specifies number of zeros
to follow
Examples:
2211 = 2210 OHMs (1%)
1002 = 10000 OHMs (1%)
103 = 10000OHMs (5%)
ORDERING INFORMATION
• Marking: Print marked - DALE, Model, Resistance value, Tolerance / Temperature Coefficient, Date Code
TECHNICAL SPECIFICATIONS
PARAMETER UNIT CPF - 1 CPF - 2 CPF - 3
Rated Dissipation at 70°CW1 2 3
Limiting Element Voltage1) V쓖250 350 500
Insulation Voltage V- 900 900 900
Thermal Resistance K/W 85 60 50
Insulation Resistance Ω1010
Category Temperature Range °C- 65°C / + 230°C
1)Rated voltage P x R
www.vishay.com
35
CPF
Vishay Dale
Document Number 31021
Revision 24-Jul-02 For Technical Questions, contact ff2bresistors@vishay.com
DIMENSIONS
MATERIAL SPECIFICATIONS
L1
Max.
LD
1.50 ± 0.125
[38.10 ± 3.18]
d
DIMENSIONS in inches [millimeters]
MODEL L D L1 (max.) d
CPF - 1 0.240 ± 0.020 0.090 ± 0.008 0.310 0.025 ± 0.002
[6.10 ± 0.51] [2.29 ± 0.20] [7.87] [0.64 ± 0.05]
CPF - 2 0.344 ± 0.031 0.145 ± 0.015 0.425 0.032 ± 0.002
[8.74 ± 0.79] [3.68 ± 0.38] [10.80] [0.81 ± 0.05]
CPF - 3 0.555 ± 0.041 0.180 ± 0.015 0.650 0.032 ± 0.002
[14.10 ± 1.04] [4.57 ± .381] [16.51] [0.81 ± 0.05]
Surface temperatures were taken with an infrared pyrometer in
+ 25°C still air. Resistors were supported by their leads in test clips
at a point .500" [12.70mm] out from the resistor body ends.
Metal Film Resistors, Industrial, Power, Flameproof
DERATING
% RATED POWER
SURFACE TEMPERATURE [˚C]
ABOVE AMBIENT [˚C]
250
200
150
100
50
0
SURFACE TEMPERATURE VS POWER
01 2345
APPLIED POWER [WATTS]
Element: Proprietary nickel - chrome alloy.
Core: Cleaned high purity ceramic
Coating: Special high temperature conformal coat.
Termination: Standard lead material is solder - coated
Solderable and weldable per
MIL -STD-1276, Type C
120
100
80
60
40
20
0
- 55 - 25 0 30 60 90 120 150 180 210 240
AMBIENT TEMP. IN ˚C
70
CPF-1 CPF-2
Terminal Strength: 2 pound pull test.
Solderability: Continuous satisfactory coverage when
tested in accordance with
MIL -STD - 202, Method 208
MECHANICAL SPECIFICATIONS
TEST MAX. ∆R (Typical Test Lots)
Thermal Shock ± 1.0%
Short Time Overload ± 0.5%
Low Temperature Operation ± 0.5%
Moisture Resistance ± 1.5%
Resistance To Soldering Heat ± 0.5%
Shock ± 0.5%
Vibration ± 0.5%
Terminal Strength ± 0.5%
Dielectric Withstanding Voltage ± 0.5%
Life ± 2.0%
PERFORMANCE
* 1.08 ± 0.125 [27.43 ± 3.18] IF TAPE AND REEL
CPF-3
