Low Resistance
Power Wirewounds
PLO Series
Welwyn Components
•
3 watts to 15 watts
•
±1, 2, 3, 5 and 10% tolerance
•
0.005 ohm to 0.18 ohm
•
TC’s from 30 ppm/°C to +500 ppm/°C
Electrical Data
Type
Power @ 25°C
Resistance range
watts
PLO-3
3
PLO-5
5
PLO-7
7
PLO-10
10
R01 to R18
PLO-15
15
R01 to R18
ohms R005 to R18 R005 to R18 R01 to R18
Inductance less than 10 nanohenries
Note: When ordering the alternate configuration please add an ‘A’ after the part number. (ie. PLO-3A)
Standard test points for PLO-3 and PLO-5 are 44.45mm; test points for PLO-7, PLO-10 and PLO-15 are 63.50mm.
Physical Data
Dimensions (mm)
Type
PLO-3
PLO-5
PLO-7
PLO-10
PLO-15
L
±1.6
22.4
22.4
35.3
47.8
47.8
W
±0.8
7.87
9.65
9.65
9.65
12.7
H
±0.8
7.87
8.89
8.89
8.89
12.7
d
±0.05
0.040
0.040
0.040
0.040
0.040
E
±0.8
9.65
10.4
11.9
11.9
16.0
Type PLO-XA
Standard Configuration
W
H
d
Alternate Configuration
L
Type PLO
E
Power Derating
Temperature Rise
Hot Spot Temperature (°C)
Percent Rated Load
Ambient Temperature (°C)
Percent Rated Load
Packaging
Resistors are supplied bulk packed.
General Note
Welwyn Components reserves the right to make changes in product specification without notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
A subsidiary of
TT electronics plc
Issue B · 03.02
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
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