EXTREMELY LOW RESISTANCE
POWER WIREWOUNDS
ISO-9001
Registered
Fireproof high temperature
ceramic case
PLO
SERIES
•
•
•
•
3 watts to 15 watts
±1%, ±2, ±3, ±5, ±10% tolerance
0.005 ohm to 0.18 ohm
TC's from 30 ppm/°C to +500 ppm/°C (range dependant)
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
All welded terminations
SPECIFICATIONS:
-Inductance less than 10
nanohenries
NOTE:
Standard test points for PLO-3 and PLO-5
are 1.75 in. (44.45mm); test points for PLO-7, PLO-
10, PLO-15 are 2.500 in (63.50mm). Consult fac-
tory for application.
Please note: When ordering the alternate configuration please add an 'A' after the part number. (i.e., PLO-3A)
DIMENSIONS
(Inches and (mm)):
Standard Configuration
Alternate Configuration
.75"
min.
0.125
max.
L
D
L
±.063 (1.6)
0.88 (22.4)
0.88 (22.4)
1.39 (35.3)
1.88 (47.8)
1.88 (47.8)
W
H
E
Type: PLO
Type: PLO-XA
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)
IRC Type
PLO-3
PLO-5
PLO-7
PLO-10
PLO-15
POWER DERATING:
100
80
PLO-15
TEMPERATURE RISE:
250
PLO-15
HOW TO ORDER:
Sample Part No.:
25 40
PLO-3, 5, 7, 10
PLO 5 .02Ω 3%
Ω
Hot Spot Temperature (°C)
200
150
PLO-7
Percent Rated Load
PLO-10
IRC Type
PLO-5
PLO-3
60
40
20
0
0
Max. Recommended
Ambient Operating
Temperature 150°C
50
100
150
200
250
100
50
0
Power
5 = 5 watts
(see specification chart
for other power ratings)
120
0
20
40
60
80
100
Ambient Temperature (°C)
Percent Rated Load
Resistance Value
Expressed in ohms
(Standard EIA/MIL values)
Tolerance
±1%, ±2%, ±3%, ±5%, ±10% standard
WIREWOUND AND FILM TECHNOLOGIES DIVISION
736 Greenway Road • Boone, North Carolina 28607-1860 • Tel: 828-264-8861 • Fax: 828-264-8866 • www.irctt.com
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