Datasheet

Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
PWR163 Series Power Resistor
Soldering Profi le
PWR 163 S - 25 - 10R0 J E
Model
PWR = Power
Resistor
Package
163 = DPAK Style
Pin Style
S = Surface Mount
Power
25 = 25 W
Resistance Value
<100 ohms ... “R” represents decimal
point (examples: 7R50 =
7.5 Ω; R500 = 0.5 Ω)
≥100 ohms .... First three digits are
signifi cant, fourth digit
represents number of
zeros to follow (exam-
ples: 2000 = 200 ohms;
3002 = 30K ohms)
Absolute Tolerance
J = 5 %
F = 1 %
Packaging
E = Tape & Reel
Blank = Tubes
How to Order
Power dissipation is 2.8 W at an ambient temperature of 25 ˚C when mounted on a
double-sided copper board using FR4 standard, 70 µm of copper, 39 x 30 x 1.6 mm.
Pulse Power Rating
Energy in Joules
Overload Duration in Seconds
10
100
1
0.1
0.01
10
-7
10
-6
10
-5
10
-4
10
-3
10
-2
10
-1
The energy absorbed by the resistor expressed in Joules can be calculated by
multiplying the peak power of the pulse in watts times the length of the pulse in
seconds.
The energy should not exceed the limits shown in the graph. The overload voltage
should not exceed 1.5 times the maximum operating voltage.
25
75
125
175
225
275
0 50 100 150 200 250 300
Time (seconds)
Temperature (°C)
60 - 120 seconds
60 - 90
seconds
260 °C peak
190 °C
150 °C
220 °C
Ramp Down
6 °C/second
245 °C
Maximum of 20 seconds between
+245 °C and +260 °C
Ramp Up
3 °C/second maximum
10 seconds minimum
<1>
<1>
Typical Part Marking
163 25
XXXX X%
YYY
COSTA RICA
MODEL
NUMBER
TOLERANCE
DATE CODE
COUNTRY
OF ORIGIN
RESISTANCE
CODE
MANUFACTURER'S
TRADEMARK