PWR220T-20-4R70J Bourns Inc., PWR220T-20-4R70J Datasheet - Page 2

• Manufacturer Part Number: PWR220T-20-4R70J
• Description: POWER RESISTOR 5%
• Manufacturer: Bourns Inc.
• Series: PWR220T-20r

Specifications of PWR220T-20-4R70J

• Resistance (ohms): 4.7
• Number Of Terminations: 2
• Package / Case: TO-220-2
• Power (watts): 20W
• Composition: Thick Film
• Features: Current Sense, Pulse Withstanding
• Temperature Coefficient: ±100ppm/°C
• Tolerance: ±5%
• Size / Dimension: 0.398" L x 0.157" W (10.10mm x 4.00mm)
• Height: 0.575" (14.60mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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.
Product Dimensions
Pulse Power Rating
0.01
PWR220T-20 Series Power Resistor
100
0.1
10
10 - 7
1
(.236)
(.340)
(.540)
13.72
8.63
6.0
(.200)
5.08
10 - 6
(.398)
10.1
(.029)
0.72
10 - 5
Overload Duration in Seconds
DIMENSIONS:
(.098)
(.142)
2.5
3.6
DIA.
10 -4
(INCHES)
MM
10 - 3
(.575
(.158)
(.049)
14.6
(.089)
2.25
1.23
4.0
10 -2
(1.12)
REF.
28.3
Customers should verify actual device performance in their specifi c applications.
10 -1
Model
Package
Pin Style
Power
Resistance Value
Absolute Tolerance
How to Order
PWR = Power
220 = TO-220 Style
T = Through-hole
20 = 20 W
<100 ohms ... “R” represents decimal
≥100 ohms ... First three digits are
J = 5 %
F = 1 %
Specifi cations are subject to change without notice.
Asia-Pacifi c:
Tel: [phone]
Fax: [phone]
Europe:
Tel: [phone]
Fax: [phone]
The Americas:
Tel: [phone]
Fax: [phone]
www.bourns.com
Resistor
PWR 220 T - 20 - 10R0 F
point (examples: 7R50 =
7.5 Ω; R500 = 0.5 Ω)
signifi cant, fourth digit
represents number of
zeros to follow (exam-
ples: 2000 = 200 ohms;
3002 = 30K ohms)
12/09