Semi-Precision Power
Wirewound Resistor for
Pulse & Surge Applications
PPW Series
•
±20 ppm/°C TCR
•
2 watts to 15 watts
•
0.10 ohms to 5000 ohms
•
±3%, ±2%, or ±1% tolerance
Alloy wirewound
element
Inorganic fireproof
encapsulant
All welded
construction
Flameproof
ceramic housing
Heat conducting
ceramic substrate
Electrical Data
IRC
Type
PPW-2
PPW-3
PPW-5
PPW-7
PPW-10
PPW-15
Power @ 25°C
(watts)
2
3
5
7
10
15
Resistance Range
(ohms)
.01 TO 1600
.01 TO 1600
.01 TO 3300
.01 TO 2500
.01 TO 5000
.01 TO 5000
Please note: When ordering the alternate configuration please add an "A" after the part number. (PPW-3A)
Lightning Surge Capabilities for PPW-2
1000V
500V
600V
300V
1000
2000
3000
1000
2000
3000
1000 Volts 10 x 360µsec
Resistance Range
1 TO 9.9Ω
10 TO 29.9Ω
30 TO 99Ω
100 TO 1600Ω
10 x 1000*
250V
500V
600V
1000V
600 Volts 10 x 1000µsec
10 x 360*
650V
850V
1000V
1500V
*10 microseconds - Maximum rise time to peak voltage. 360 or 1000 microseconds - minimum decay time to one half peak.
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
PPW Series Issue May 2009 Sheet 1 of 3
Semi-Precision Power
Wirewound Resistor for
Pulse & Surge Applications
Standard Configuration
Alternate Configuration
0.125”
Max.
1.0”
Min.
L
D
H
W
E
Dimensions (Inches (mm))
IRC
Type
PPW-2
PPW-3
PPW-5
PPW-7
PPW-10
PPW-15
L
±.03 (.8)
.69 (17.05)
.88 (22.3)
.88 (22.3)
1.39 (35.3)
1.88 (47.7)
1.88 (47.7)
W
±.03 (.8)
.275 (6.99)
.310 (7.87)
.380 (9.65)
.380 (9.65)
.380 (9.65)
.500 (12.7)
H
±.03 (.8)
.275 (6.99)
.310 (7.87)
.350 (8.89)
.350 (8.89)
.350 (8.89)
.500 (12.7)
D - Diameter
.032 (0.8)
.032 (0.8)
.032 (0.8)
.032 (0.8)
.032 (0.8)
.032 (0.8)
E
±.03 (.8)
.32 (8.134)
.38 (9.65)
.41 (10.4)
.47 (11.9)
.47 (11.9)
.50 (12.7)
Temperature Rise Chart
250
Hot Spot Temperature (°C)
PPW-15
200
150
PPW-7
PPW-10
PPW-5
PPW-3
PPW-2
100
50
0
0
20
40
60
80
100
120
Percent Rated Load
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
PPW Series Issue May 2009 Sheet 2 of 3
Semi-Precision Power
Wirewound Resistor for
Pulse & Surge Applications
Power Derating Curve
100
Percent Rated Load
80
60
40
20
0
Max. Recommended
Ambient Operating
Temperature 150°C
PLO-15
PPW-3, 5, 7, 10
25 40
PPW-2
0
50
100
150
200
250
Ambient Temperature (°C)
Ordering Data
Sample Part No.
IRC Type
PPW
PPW
10
15R0
G
LF
Power
10 = 10 watts
(see specification chart for other power ratings)
Resistance Value
Expressed in ohms
(Standard EIA/MIL values)
Tolerance
H = ±3%, G = ±2%, F = ±1% standard
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
PPW Series Issue May 2009 Sheet 3 of 3
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