PFU Series
1000 W & 800 W
High Power Resistors / High Voltage Resistors
• High Power Density
• 0.5 Ohm to 1 Mohm
• Very Low Inductance
• Moisture resistant encapsulation
• Vibraton Proof
Applications: Power Supplies, Motor Controls,
Snubber Resistors, Load Banks, and Robotics
SPECIFICATIONS
Type
PFU 800
PFU 1000
Conditions
-
At Flange Temperature -55 to +75 °C
At Flange Temperature -55 to +90 °C
5 Seconds mounted on cooler
1000
-
Rated Power
800
1200
Short Time Overload
Thermal Resistance
1200
0.10 °C / W
From Resistor to Flange
Maximum power is limited per Ohm’s law.
V2/R
Resistance Range
0.5 ohm to 1 Mohm
for example at 1Mohm power is limited to 25 watts
Nominal Resistance
TCR
E24+
E24, additionally 2.5, 5.0 and 8.0
1 ohm to 1 Mohm, +/- 200PPM/°C
< 1 ohm , for -55 to +155 °C
+/- 100 PPM/K (A)
Tolerance
+/- 5% (J)
Operation Temperature
-55 to +175 °C
At Resistor Element Surface
P Rated Power (W),
R - resistance value (ohm), V - voltage (V)
Max Applied Voltage
Insulation Voltage
V = √ (P • R) (5,000V Max)
60 seconds between Terminals and Flange.
Leak current below 0.5 mA
5,000 V-50Hz
5,000 V-30KHz
5,000 V-50Hz
Partial Discharge Voltage
Capacitance
Inductance
5,000 V-50KHz
Starting Voltage Zero Count
Terminal to Flange
73 pF
108 nH
25 pF
Terminal to Terminal
Terminal to Terminal
Capacitance
Creep Distance
Air Distance
42 mm
14 mm
Load Life
Δ R +/- 0.40%
Δ R +/- 0.25%
Δ R +/- 0.20%
Over 1G ohm
Δ R +/- 0.25%
UL94V-0
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
Between terminals and flange, DC 1000V
See Note below
Humidity
Temperature Cycle
Insulation Resistance
Vibration
Flammability
Weight
For Resistor Body
160 grams
168 grams
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
(626) 284-9901
(626) 284-1704
© Riedon, Inc.
www.riedon.com
sales@riedon.com
Revised: 201903_003