FPA250
Thick Film Power Resistors
Due to a Non-Inductive design these elements are ideally suited
for high frequency and pulse load applications.
•
Non Inductive Performance for HF Applications
•
Power Applications 100W to 250W
•
Very Good Power/Volume Ratio
•
RoHS Compliant
Characteristics
Power rating:
Resistance range:
Tolerance (Code):
Temperature coefficient:
Max working voltage:
Working temperature range:
Dielectric strength:
Insulation resistance:
Creepage distance:
Air gap distance
250W (heatsink at 50°C)
From 1R to 2M E6 Series
Standard J (±5%) and K (±10%)
Also available F (±1%) on request
100ppm/°C
5000Vac
-55°C to +155°C
7000Vac
≥ 10Gohm at 500V
42mm min
14mm
Partial discharge:
Typical inductance:
Parallel capacitance:
Capacitance/Mass:
Overload:
Thermal resistance:
Heatsink flatness:
Heatsink surface finish:
Thermal grease:
Max torque for contacts:
Max torque for mounting:
≤10pC / 5000Vac
40nH typical
40pF
≤120pF
4Pn x 10 sec
0.15°C/W
0.05mm max
6.3 µm max
Required
2Nm (static)
1.8Nm (static)
Ordering Procedure
Standard Resistor Specify Series, Watts, Ohmic Value,
Tolerance Code
e.g.: FPA250 10R J
Derating Curve
100
75
Rated Power %
50
25
0
0
25
50
100
Temperature °C
125
155
ARCOL UK Limited,
Threemilestone Ind. Estate,
Truro, Cornwall, TR4 9LG, UK.
T +44 (0) 1872 277431
F +44 (0) 1872 222002
E sales@arcolresistors.com
The information contained herein does not form part of
a contract and is subject to change without notice. Arcol
operate a policy of continual product development, therefore,
specifications may change.
It is the responsibility of the customer to ensure that the
component selected from our range is suitable for the intended
application. If in doubt please ask Arcol.
Page 1 of 2
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www.arcolresistors.com
FPA250
Thick Film Power Resistors
Dimensions (mm)
1
M5
ø21 ø17
ø12.8
4 R2
28.5
R1
ø12.5
R2
60 36 ø4.6
5
ø21
3
34
40.5
57
67
2
14
16.5
21.5
26
Pulse rating
For pulse duration >5.0 µS, and at maximum allowed voltage levels, the maximum peak energy of 0.3J is limited by the average power
rating of 250W. For pulse duration times <5.0 µS it has not been possible to reliably establish maximum energy failure point, although it is
known that the pulse capability is higher than the curve shown in the graph below.
Whilst these parts are designed to operate in high frequency circuits, where dv/dt is faster than 250V/µS, it is recommended that the resistor is tested under worst case application
conditions to ensure that unknown attribute of the application waveform are completely accounted for.
ARCOL UK Limited,
Threemilestone Ind. Estate,
Truro, Cornwall, TR4 9LG, UK.
T +44 (0) 1872 277431
F +44 (0) 1872 222002
E sales@arcolresistors.com
The information contained herein does not form part of
a contract and is subject to change without notice. Arcol
operate a policy of continual product development, therefore,
specifications may change.
It is the responsibility of the customer to ensure that the
component selected from our range is suitable for the intended
application. If in doubt please ask Arcol.
Page 2 of 2
8/12.14
www.arcolresistors.com
Programming Basics
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