Extremely Low Resistance
Power Wirewounds
PLO Series
•
3 watts to 15 watts
•
0.005 ohm to 0.18 ohm
•
±1%, ±2, ±3, ±5, ±10% tolerance
•
TC’s from 30 ppm/°C to +500 ppm/°C (range dependant)
All welded
terminations
Fireproof high temperature
ceramic case
Electrical Data
IRC
Type
PLO-3
PLO-5
PLO-7
PLO-10
PLO-15
Power @ 25°C
(watts)
3
5
7
10
15
Resistance Range
(ohms)
.005 TO .18
.005 TO .18
.01 TO .18
.01 TO .18
.01 TO .18
NOTE:
Standard test points for PLO-3 and PLO-5 are 1.75 in. (44.45mm);
test points for PLO-7, PLO-15 are 2.500 in (63.50mm). Consult factory
for application.
-Inductance less than 10 nanohenries.
Please note: When ordering the alternate configuration please add an "A" after the part number. (PLO-3A)
Standard Configuration
0.125”
Max.
.75”
Min.
L
D
Alternate Configuration
E
W
H
Type
4LPW
Type
PLO-XA
Dimensions (Inches (mm))
IRC
Type
PLO-3
PLO-5
PLO-7
PLO-10
PLO-15
L
±.063 (1.6)
.88 (22.4)
.88 (22.4)
1.39 (35.3)
1.88 (47.8)
1.88 (47.8)
W
±.03 (.8)
.31 (7.87)
.38 (9.65)
.38 (9.65)
.38 (9.65)
.50 (12.7)
H
±.03 (.8)
.31 (7.87)
.35 (8.89)
.35 (8.89)
.35 (8.89)
.50 (12.7)
D - Diameter
±.002 (.05)
.040
.040
.040
.040
.040
E
±.03 (.8)
.38 (9.65)
.41 (10.4)
.47 (11.9)
.47 (11.9)
.63 (16.0)
General Note
IRC reserves the right to make changes in product specification without notice or liability.
All information is subject to IRC’s own data and is considered accurate at time of going to print.
Wire and Film Technologies Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
A subsidiary of
TT electronics plc
PLO Series Issue November 2008 Sheet 1 of 2
Extremely Low Resistance
Power Wirewounds
Temperature Rise Chart
250
Hot Spot Temperature (°C)
200
150
100
PLO-3
PLO-5
PLO-10
PLO-7
PLO-15
Power Derating Curve
100
Percent Rated Load
80
60
40
20
0
Max. Recommended
Ambient Operating
Temperature 150°C
PLO-15
25 40
PLO-3, 5, 7, 10
50
0
0
20
40
60
80
100
120
Percent Rated Load
0
50
100
150
200
250
Ambient Temperature (°C)
Ordering Data
Sample Part No.
IRC Type
PLO
PLO
5
R020
F
Power
5 = 5 watts
(see specification chart for other power ratings)
Resistance Range
Expressed in ohms
(Standard EIA/MIL values)
Tolerance
F = ±1%, G = ±2%, H = ±3%, J = ±5%, K = ±10% standard
Wire and Film Technologies Division
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
PLO Series Issue November 2008 Sheet 2 of 2
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