PFS35
Power SMD Film Resistors
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TO-263 Housing (D-Pak)
Resistances from 0.01Ohm to 51kOhms
Power Rating to 35Watt
Resistance Tolerances to ±1%
TCR to ±50ppm/°C
Load Stability to 1%
Solder Reflow Secure at 260°C / 20s
Isolated Back Plate
SPECIFICATIONS
Type
Terminals
Terminal Finish
Power Rating (with heatsink)
Thermal Resistance Rthj-c
Resistance Range
Tolerances (others upon request)
Temperature Coefficient
Operating Temperature
Max Operating Voltage
Inductance
Voltage Proof
Insulation Resistance
Resistor Material
Load Life
Humidity
Temperature Cycle
Solder Heat
Vibration
Reflow soldering
Moisture Sensitivity Level
±1%
±1%
±0.25%
±0.1%
±0.25%
0.01 to 0.099Ohms
5%
±250 ppm/°C
PFS35
2
Tin Plated Copper
35 W
( 2W on Simple Solder Pad )
3.3 K/W
0.1 to 9.9Ohms
1% / 5%
±100 ppm/°C
-55°C to 175°C
500V
8.4 nH
2.0kV DC
Over 1,000 Megohm
Thin Film
90 min ON, 30 min OFF, 1000 hrs @ 25C
90-95% RH, 0.1W, 1000 hrs @ 40C
-55C for 30 min, +155C for 30 min, 5 cycles
350C ±5C for 3 seconds
IEC60068-2-6
lead-free soldering 260°C / 20s
MSL-1
10 to 51KOhms
1%
±50 ppm/°C
Ordering Information
Part Description: Part Type - Resistance - Tolerance
PFS35 10 Ohms 1%
Riedon Inc.
©
Riedon, Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
www.riedon.com
sales@riedon.com
(626) 284-1704
Revised: 201801_002
PFS35
Power SMD Film Resistors
SPECIFICATIONS
(continued)
Power Derating
% Power
100
80
60
40
20
0
-50
0
+175
°C
50
100
150
Flange Temperature (C)
200
+25
°C
Power Rating Notes -
The PFS35 Series Resistors must be attached to a suitable
heatsink. The maximum internal resistor temperature is 175°C.
To specify an appropriate heatsink use the following formula :
Where:
R
H
= Thermal Resistance of Heatsink ( K/W )
R
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 )
DIMENSIONS
Back plate is isolated from both pins.
Dimension
A
B
C
D
E
F
G
H
J
K
L
mm
10.3
10.1
15.3
5.08
1.5
0.75
2.2
4.5
0.5
2.5
5.0
tol.
(±mm)
0.2
0.2
1.2
0.1
0.05
0.05
0.2
0.2
0.05
0.5
1.0
inches
0.405
0.400
0.602
0.200
0.060
0.030
0.087
0.177
0.020
0.10
0.20
tol.
(±inches)
0.008
0.008
0.047
0.004
0.002
0.002
0.008
0.008
0.002
0.02
0.04
Riedon Inc.
©
Riedon, Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
www.riedon.com
sales@riedon.com
(626) 284-1704
Revised: 201801_002
Mobile and portable
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