eneral Purpose Stand-Up
General Purpose Stand-Up
Resistors
wer
Power Wirewound Resistor
Wirewound Resistor
General Purpose Stand-Up
PWR Series
General Purpose Stand-Up
Power Wirewound Resistor
·
3, 5, 7, and 10 watts
Power Wirewound Resistor
·
0.1Ω to
PWR Series
18KΩ range
·
·
Fireproof high
Fireproof high
temperature ceramic
temperature ceramic
case
stand-off
case with
with stand-off
Series
7, and 10 watts
Radial leads for PC mount
TC’s
3, 5, 7, and 10 watts
to 18KΩ range
from 300 ppm/°C to +5500 ppm/°C
0.1 Ω to 18k Ω range
PWR Series
l leads for
PC mount
NOT RECOMMENDED FOR
•
3,
Radial leads for PC mount
5, 7,
rom 300 ppm/°C
and
+5500 ppm/°C
NEW DESIGNS
to
10 watts
TC’s from 300 ppm/°C to +5500 ppm/°C
•
0.1Ω to 18KΩ range
•
Radial leads for PC mount
•
TC’s from 300 ppm/°C to +5500 ppm/°C
Fireproof high
temperature ceramic
case with stand-off
Inorganic
Inorganic
fireproof
fireproof
encapsulant
encapsulant
Alloy resistance
on
Alloy resistance wire
wire on
Inorganic
fiberglass substrate
fiberglass
fireproof
substrate
encapsulant
Alloy resistance wire on
fiberglass substrate
cifications
Specifications
r Rating: 3, 5, 7, and 10 watts
- Power
stance Range:
Rating: 3, 5, 7, and 10 watts
Resistance Range:
3 watt:
-
0.1Ω
3 watt: 0.1Ω to
7 watt:
7
0.1Ω
0.1Ω to 18K
to 7.5K
to 18K
7.5K
watt:
5 watt: 0.1Ω
5 watt: 0.1Ω to 8.5K 10
0.18Ω to 18K
to 8.5K 10 watt:
watt: 0.18Ω to 18K
- Tolerance: ±5% and ±10%
- Tolerance: ±5% and ±10%
(refer to PWRG for tolerances less than 5% pg.12
-
(refer to PWRG for tolerances
construction
Flameproof inorganic
less than 5% pg.129)
- Flameproof inorganic construction
-
-
EIA
RS-344, insulated fixed wirewound resistors
resistors
EIA
RS-344, insulated fixed wirewound
Physical
sical Data
Data
A
B
A
B
C
Meniscus
permitted to
bottom of feet
0.080
±0.032
C
LD
0.170
±0.062
0.080
±0.032
IRC Type
PWR-3
PWR-5
PWR-7
PWR-10
A
General Note
Meniscus
permitted to
D
bottom of feet
Dimensions (Inches and (mm))
B
0.320 ±0.030
(8.1 ±0.8)
0.350 ±0.030
C
1.00 ±0.030
(25.4 ±0.8)
1.00 ±0.030
(25.4 ±0.8)
1.50 ±0.032
D
E
A
0.475 ±0.030
(12.0 ±0.8)
0.170
0.500
±0.062
±0.030
(12.7 ±0.8)
0.500 ±0.030
(12.7 ±0.8)
0.630 ±0.032
(16.0 ±0.81)
LD
E
0.175 ±0.062
(4.44 ±1.6)
LD
0.036 ±0.002
(0.91 ±0.05)
0.036 ±0.002
(0.91 ±0.05)
0.036 ±0.002
(0.91 ±0.05)
0.200 ±0.062
(5.08 ±1.6)
0.200 ±0.062
(5.08 ±1.6)
0.200 ±0.062
D
(8.8 ±0.8)
E
0.175 ±0.062
(4.44 ±1.6)
0.175 ±0.062
(4.44 ±1.6)
0.250 ±0.062
(6.4 ±1.6)
0.350 ±0.030
Dimensions
(38.1 ±0.81)
(Inches and (mm))
(8.8 ±0.8)
(5.08 ±1.6)
1.39 ±0.032
(35.3 ±0.81)
C Type
B
0.510 ±0.032
(13.2 ±0.81)
C
0.290 ±0.062
(7.4 ±1.6)
D
E
0.036 ±0.002
(0.91 ±0.05)
LD
WR-3
(12.0
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.
0.475 ±0.030
±0.8)
0.320 ±0.030
(8.1 ±0.8)
1.00 ±0.030
(25.4 ±0.8)
1.00 ±0.030
(25.4 ±0.8)
0.200 ±0.062
(5.08 ±1.6)
0.175 ±0.062
(4.44 ±1.6)
0.036 ±0.002
WR-5
Wire and Film Technologies Division
• 4222 South Staples
specification without
78411 USA
TT electronics reserves the right to make changes in product
Street • Corpus Christi Texas
notice or liability.
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
General Note
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
TT Electronics reserves the right to make changes in product specification without notice or liability.
All
TT electronics plc
©
information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
A subsidiary of
TT electronics plc
(0.91 ±0.05)
0.500 ±0.030
(12.7 ±0.8)
0.350 ±0.030
(8.8 ±0.8)
PWR Series
of 2
0.200 ±0.062
0.175 ±0.062
2008 Sheet 1
0.036 ±0.002
BI Technologies
Issue November
Welwyn
IRC
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
(5.08 ±1.6)
(4.44 ±1.6)
(0.91 ±0.05)
www.ttelectronics.com/resistors
WR-7
© TT Electronics plc
0.500 ±0.030
0.350 ±0.030
(8.8 ±0.8)
1.50 ±0.032
(38.1 ±0.81)
0.200 ±0.062
(5.08 ±1.6)
0.175 ±0.062
(4.44 ±1.6)
2.14
0.036 ±0.002
(12.7 ±0.8)
11.17
(0.91 ±0.05)
General
Purpose Stand-Up
Purpose Stand-Up
Power
Wirewound Resistor
Wirewound Resistor
General Purpose Stand-Up
Power Wirewound Resistor
PWR
Series
PWR
Series
Temperature Rise Chart
300
Power Derating Curve
100
25
85
PWR - 3, 5
PWR - 7, 10
60
Hot Spot Temperature (°C)
Percent of Rated
(°C)
Hot Spot Temperature
Load
200
PWR - 7, 10
PWR - 3, 5
100
80
40
20
0
0
50
100
150
200
Ambient Temperature (°C)
Rated Power (%)
250
0
0
20
40
60
80
100
120
Rated Power (%)
Ordering Data
Sample Part No.
IRC Type
PWR
PWR
10
1202
K
LF
Power
Resistance Range
Tolerance
J = ±5%, K = ±10%
RoHS Indicator
LF indicates RoHS compliance
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
PWR Series Issue November 2008 Sheet 2 of 2
General
Note
General
Note
TT Electronics
reserves the right
make changes in
in product specification without notice or liability.
TT electronics
reserves the right to
to make changes
product specification without notice or liability.
All information is subject to
to TT electronics’ own data and is considered accurate at time of going to print.
information is subject
TT Electronics’ own data and is considered accurate at time of going to print.
BI Technologies IRC Welwyn
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
www.ttelectronics.com/resistors
© TT
Electronics plc
electronics plc
11.17
2.14
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