PFC Series
Thick Film Power SMD Resistors
•
•
•
•
•
•
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D-PAK Foot Pattern
Very Low Profile
Resistances from 0.1 Ohm to 51kOhms
Power Rating to 25 Watts
Resistance Tolerances to ±1%
TCR to ±100ppm/°C
Isolated Back Plate
SPECIFICATIONS
Type
Power Rating with heatsink
Short Time Overload
Thermal Resistance Rthj-c
Resistance Range
Tolerances (others upon request)
Temperature Coefficient
Operating Temperature
Max Operating Voltage
Capacitance
Inductance
Withstanding Voltage
Insulation Resistance
Resistor Material
Moisture Sensitivity Level
Test Conditions
Load Life
Humidity
Temperature Cycle
Solder Heat
Lead Solderability
Vibration
±1%
±1%
±0.25%
±0.1%
Over 95% of surface
±0.25%
1.44 pF
15 nH
1500 VAC
Over 1,000 Megohm
Thick Film
MSL-1
Results
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
230 ±5C for 3 seconds
IEC60068-2-6
25W
PFC10
( 2.5W on Simple Foot Print )
35 W
3.6 K/W
0.1 - 51K Ohms E24+
(includes 2.5, 4.0, 5.0, 8.0, and 16)
1% / 5%
100 ppm/K
-55°C to 155°C
Ordering Information
Part Description: Part Type - Resistance - Tolerance
PFC10 10 Ohms 1%
Note: PFC10 can operate 35W rating with back solder pad temperature of 25°C
Riedon Inc.
©
Riedon, Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
www.riedon.com
sales@riedon.com
(626) 284-1704
Revised: 201801_001
PFC Series
Thick Film Power SMD Resistors
DIMENSIONS
Solder Pad Layout
Note:
Back solder pad is isolated from both pins.
tol.
(±mm)
tol.
(±inches)
Dimension
mm
inches
A
B
C
D
E
F
G
H
I
J
K
L
8.2
12.0
1.0
5.08
0.75
1.8
8.5
8.8
14.1
5.08
2.0
3.8
0.2
0.2
0.05
0.1
0.05
0.05
-
-
-
-
-
-
0.323
0.472
0.039
0.200
0.030
0.070
0.335
0.346
0.555
0.200
0.079
0.150
0.008
0.008
0.002
0.004
0.002
0.002
-
-
-
-
-
-
CHIP CONSTRUCTION
(EXPLODED VIEW)
Riedon Inc.
©
Riedon, Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
www.riedon.com
sales@riedon.com
(626) 284-1704
Revised: 201801_001
PFC Series
Thick Film Power SMD Resistors
MOUNTING
Derating
Power Derating Curve
°C
Power Rating Notes -
The PFC Series Resistors must be attached to a suitable heat-
sink. The maximum internal resistor temperature is 155°C.
To specify an appropriate heatsink use the following formula :
°C
Where:
Heatsink Temperature (°C)
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 )
Copper Insert
Copper insert improves thermal conductivity to heatsink. Power ratings
of 35W can be achieved through active cooling of the heatsink. For
more general information on heatsinking please see our training mod-
ule on heatsinking by clicking here.
Via-Holes
Plastic Tape Specifications
Standard Package contains 500 pcs/reel, diameter 254mm reel in paper box.
Digikey Package contains 500 pcs/reel, diameter 254mm reel in paper box.
Riedon Inc.
©
Riedon, Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
www.riedon.com
sales@riedon.com
(626) 284-1704
Revised: 201801_001
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