PFU Series
1000 W & 800 W
High Power Resistors / High Voltage Resistors
•
•
•
•
•
High Power Density
0.5 Ohm to 1 Mohm
Very Low Inductance
Vibraton Proof
Applications:
Power Supplies, Motor Controls,
Snubber Resistors, Load Banks,
c
Robotics
SPECIFICATIONS
Type
Rated Power
Short Time Overload
Thermal Resistance
Resistance Range
Nominal Resistance
TCR
Tolerance
Operation Temperature
Max Applied Voltage
Insulation Voltage
Capacitance
Inductance
Capacitance
Creep Distance
Air Distance
Load Life
Humidity
Temperature Cycle
Insulation Resistance
Vibration
Flammability
Weight
PFU 800
800
PFU 1000
1000
Conditions
At Flange Temperature -55 to +75 °C
5 Seconds
From Resistor to Flange
1000
0.10 °C / W
1200
0.5 ohm TO 1 Mohm
E24+
+/- 100 PPM/K (A)
+/- 5% (J)
-55 to +175 °C
V = √ (P • R) (5000V Max)
8000 V-30Hz
73 pF
108 nH
25 pF
42 mm
14 mm
Δ R +/- 0.40%
Δ R +/- 0.25%
Δ R +/- 0.20%
Over 1G ohm
Δ R +/- 0.25%
UL94V-0
120 grams
See Note below
For Resistor Body
Continuous Power 1000 hours
60 °C, 90 to 95% RH, DC 0.1W, 1000 hours
-55 °C, 30 min, +155 °C 30 min, 5 cycles
8000 V-50Hz
At Resistor Element Surface
P Rated Power (W),
R - resistance value (ohm), V - voltage (V)
60 seconds between Terminals and Flange.
Leak current below 0.5 mA
Terminal to Flange
Terminal to Terminal
Terminal to Terminal
Additionally , 2.0 and 5.0
1 ohm to 1 Mohm, +/- 200PPM/°C
< 1 ohm , for -55 to +155 °C
Note: IEC60068 2-6 displacement 0.75 mm or acceleration 100m/J² 10Hz to
54Hz sweep, 10 cycles X,Y,Z direction
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
5/17
PFU Series
1000 W & 800 W
High Power Resistors / High Voltage Resistors
SPECIFICATIONS
(continued)
2 -M5 screw-10mm
2.0-/+0.06
2.0-/+0.63
PFU800 / PFU1000
Recommended: Mounting Torque: 1.8Nm (M4)
Contact Torque: 2.0 Nm (M5)
Power Rating Notes -
The PFU Series Power Film Resistors must be attached to a
suitable heatsink. The maximum internal resistor temperature is
175°C.
Liquid Cooling highly recommended.
To specify an appropriate heatsink use the following formula :
R
H
H
=
Where:
T
MAX
- (
P
*
R
H
R
) -
T
A
P
R
θ
H
= Thermal Resistance of Heatsink ( K/W )
R
θ
R
= Thermal Resistance of Resistor ( K/W )
T
MAX
= Maximum Temperature of Resistor
T
A
= Ambient Temperature of Heatsink ( °C )
P = Power Through Resistor ( W )
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
etalp egnalF
noitalusnI
rotsiseR
rotcudnoC
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slanimret wercS
2.0-/+0.51
5.0-/+0.82
2.0-/+0.52
2.0-/+0.96
2.0-/+0.85
2.0-/+0.75
2.0-/+0.43
(626) 284-1704
5/17
PFU Series
1000 W & 800 W
High Power Resistors / High Voltage Resistors
SPECIFICATIONS
(continued)
Derating Curve
% Power Rating
+75°C
100
80
60
40
20
0
-50
0
+50
+100
+150
+200
Flange Temperature (°C)
Pulse Energy Durability
PFU800
Pulse Peak Power (W)
10M
1M
100k
Tenative continuous-pulse allowance at duty 0.01. Load
life test will be necessary in actual equipment, because
curve may be changed by resistance, repetition, duty
and perating temperature.
PFU800-100 J
100kW
+175°C
10k
1k
100
10n 100n
800W
1u
10u
100u 1m
(Seconds)
10m 100m 1
10 100
Derating Curve
% Power Rating
100
80
60
40
20
0
-50
0
+50
+100
+65°C
Pulse Energy Durability
PFU1000
Pulse Peak Power (W)
10M
1M
100k
PFU1000-100 J
Tenative continuous-pulse allowance at duty 0.01. Load
life test will be necessary in actual equipment, because
curve may be changed by resistance, repetition, duty
and perating temperature.
100kW
10k
+175°C
+150
+200
1k
100
10n 100n
1000W
1000W
1u
10u
100u 1m
(Seconds)
10m 100m 1
10 100
Flange Temperature (°C)
Ordering Information
Part Description: Part Type - Terminal Style - Resistance - Tolerance
PFU800 10 Ohms 5%
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
5/17
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