Low Resistance
Low
Resistance
Power
Resistance
Wirewounds
Power Wirewounds
Power Wirewounds
PLO Series
PLO Series
PLO Series
3 watts to 15
watts
watts
3 watts to 15
3
3, 5 and
to
10% tolerance
watts
10%
watts
±1, 2,
±1, 2, 3, 5 and
15
tolerance
0.005
3, 5 and
0.18 ohm
0.005
±1, 2,
ohm
0.18
10% tolerance
ohm to
to
ohm
TC’s from 30
0.18 ohm
0.005 ohm to
ppm/°C to +500 ppm/°C
Welwyn Components
Welwyn Components
·
·
·
·
TC’s from 30 ppm/°C to +500 ppm/°C
TC’s from 30 ppm/°C to +500 ppm/°C
Electrical Data
Electrical Data
Type
Type
Power @ 25°C
watts
PLO-3
3
PLO-3
PLO-5
5
PLO-5
PLO-7
7
PLO-7
PLO-10
10
PLO-10
PLO-15
15
PLO-15
15
R01 to R18
Power @
e
2
i
5
t
°C
ce range
R s s an
Resistance range
than 10 nanohenries
Inductance less
3
5
o
watts
R005 to R18 R005 to R18 R01 to R18
7
R01 to R18
10
to R18
hms
R01
ohms R005 to R18 R005 to R18 R01 to R18
R01 to R18
Inductance less than 10 nanohenries
and PLO-5 are 44.45mm; test points for PLO-7, PLO-10 and PLO-15 are 63.50mm.
Standard test points for PLO-3
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.
Note: When ordering the alternate configuration please add an ‘A’ after the part number. (ie. PLO-3A)
Dimensions (mm)
Physical Data
Type
L
Physical Data
Standard Configuration
W
±0.8
H
±0.8
d
±0.05
E
±0.8
W
H
Type PLO
Dimensions (mm)
±1.6
Type
PLO-3
L
22.4
PLO-5
±1.6
22.4
Standard Configuration
d
L
Alternate Configuration
W
7.87
±0.8
9.65
7.87
9.65
9.65
9.65
9.65
9.65
12.7
H
7.87
8.89
±0.8
8.89
7.87
8.89
12.7
d
1.0
1.0
±0.05
1.0
1.0
1.0
1.0
E
9.65
10.4
±0.8
11.9
9.65
11.9
16.0
W
H
Type PLO
PLO-3
PLO-7
22.4
35.3
PLO-5
PLO-7
PLO-10
PLO-10
PLO-15
d
L
22.4
35.3
47.8
47.8
47.8
E
8.89
8.89
8.89
1.0
1.0
1.0
10.4
11.9
11.9
16.0
Alternate Configuration
Type PLO-XA
E
Power Derating
12.7
PLO-15
47.8
12.7
1.0
Temperature Rise
Hot Spot Temperature (°C)
Type PLO-XA
Percent Rated Load
Power Derating
Temperature Rise
Hot Spot Temperature (°C)
Percent Rated Load
Ambient Temperature (°C)
Percent Rated Load
Ambient Temperature (°C)
General Note
General Note
Welwyn Components reserves
to
right
changes
changes in product specification without
liability.
TT electronics reserves the right
the
make
to make
in product specification without notice or
notice or liability.
All information is subject to Welwyn’s own data and is considered accurate at time of going to print.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
Percent Rated Load
A subsidiary of
TT electronics plc
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
Issue B · 03.02
11. 11
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
© TT electronics plc
822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Telephone: +44 (0) 1670
106
Low Resistance
Low Resistance
Power Wirewounds
PLO Series
PLO Series
Power Wirewounds
Ordering Procedure
Example: PLO3 at 10 milliohms and 5% tolerance in bulk pack -
PLO3–R01J
I
Type
Configuration
A
Standard
Alternate
Welwyn Components
Value (use IEC62 code)
Tolerance (use IEC62 code)
F
G
H
1%
2%
3%
J
K
5%
10%
Note: 1 & 5% preferred
Packing
I
Bulk
Standard
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
© Welwyn Components Limited
Bedlington, Northumberland NE22 7AA, UK
© TT electronics plc
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
Issue B · 03.02
11. 11
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