PWR263S-20-3301F Bourns Inc., PWR263S-20-3301F Datasheet - Page 2

• Manufacturer Part Number: PWR263S-20-3301F
• Description: RES 3300 OHM 1% 20W TO263 SMD
• Manufacturer: Bourns Inc.
• Series: PWR263S-20r

Specifications of PWR263S-20-3301F

• Temperature Coefficient: ±100ppm/°C
• Resistance (ohms): 3.3K
• Power (watts): 20W
• Composition: Thick Film
• Features: Current Sense, Pulse Withstanding
• Tolerance: ±1%
• Size / Dimension: 0.398" L x 0.177" W (10.11mm x 4.50mm)
• Height: 0.409" (10.39mm)
• Lead Style: Surface Mount (SMD - SMT)
• Package / Case: DPak (TO-263)
• Resistance In Ohms: 3.30K
• Case: DPak (TO-263)
• Resistance: 3.3kohm
• Resistance Tolerance: ± 1%
• Power Rating: 20W
• Voltage Rating: 250V
• Resistor Element Material: Thick Film
• Termination Style: SMD/SMT
• Operating Temperature Range: - 55 C to + 155 C
• Dimensions: 10.1 mm W x 10.4 mm L x 4.5 mm H
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

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.
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.
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
Soldering Profi le
Pulse Power Rating
0.01
275
225
175
125
PWR263S-20 Series Power Resistor
100
75
25
0.1
10
10 - 7
1
0
150 °C
<1>
Maximum of 20 seconds between
+245 °C and +260 °C
10 - 6
50
Ramp Up
3 °C/second maximum
60 - 120 seconds
100
10 - 5
Overload Duration in Seconds
190 °C
Time (seconds)
220 °C
<1>
150
10 -4
10 seconds minimum
245 °C
seconds
60 - 90
200
10 - 3
260 °C peak
250
10 -2
Ramp Down
6 °C/second
300
10 -1
TOLERANCE:
LEAD
COPLANARITY: (0.004) SURFACE
(0.414)
10.52
Product Dimensions
Recommended Pad Layout
48 °
(0.158)
(0.089)
(0.166)
4.02
2.25
4.23
DIMENSIONS:
(0.177)
(0.20)
5.08
(±0.015)
4.5
±0.38
(0.076)
0.102 MAX AT MOUNTING
1.92
(0.010)
0.25
(0.398)
(0.307)
UNLESS OTHERWISE NOTED
10.1
(.315)
7.8
(.433)
11.0
8.0
(INCHES)
MM
(.051)
1.3
(0.055)
(0.122)
1.4
(0.095)
3.1
(0.347)
(0.606)
(0.10)
15.39
2.4
0.26
(0.063)
8.8
1.6
(0.409)
10.4
REF.