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. A subsidiary of
TT electronics plc
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Wire and Film Technologies Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
Electrical Data
PPW Series
• ±20 ppm/°C TCR
• 2 watts to 15 watts
• 0.10 ohms to 5000 ohms
• ±3%, ±2%, or ±1% tolerance
IRC
Type
Power @ 25°C
(watts)
Resistance Range
(ohms)
PPW-2 2 .01 TO 1600
PPW-3 3 .01 TO 1600
PPW-5 5 .01 TO 3300
PPW-7 7 .01 TO 2500
PPW-10 10 .01 TO 5000
PPW-15 15 .01 TO 5000
Please note: When ordering the alternate configuration please add an "A" after the part number. (PPW-3A)
Semi-Precision Power
Wirewound Resistor for
Pulse & Surge Applications
Resistance Range 10 x 1000* 10 x 360*
1 TO 9.9Ω250V 650V
10 TO 29.9Ω500V 850V
30 TO 99Ω600V 1000V
100 TO 1600Ω1000V 1500V
*10 microseconds - Maximum rise time to peak voltage. 360 or 1000 microseconds - minimum decay time to one half peak.
Lightning Surge Capabilities for PPW-2
1000V
500V
600V
300V
1000 Volts 10 x 360µsec
1000 2000 3000 1000 2000 3000
600 Volts 10 x 1000µsec
Heat conducting
ceramic substrate
Flameproof
ceramic housing
Inorganic fireproof
encapsulant
Alloy wirewound
element
All welded
construction
PPW Series Issue May 2009 Sheet 1 of 3
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Wire and Film Technologies Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
Standard Configuration Alternate Configuration
Dimensions (Inches (mm))
IRC
Type
L
±.03 (.8)
W
±.03 (.8)
H
±.03 (.8) D - Diameter E
±.03 (.8)
PPW-2 .69 (17.05) .275 (6.99) .275 (6.99) .032 (0.8) .32 (8.134)
PPW-3 .88 (22.3) .310 (7.87) .310 (7.87) .032 (0.8) .38 (9.65)
PPW-5 .88 (22.3) .380 (9.65) .350 (8.89) .032 (0.8) .41 (10.4)
PPW-7 1.39 (35.3) .380 (9.65) .350 (8.89) .032 (0.8) .47 (11.9)
PPW-10 1.88 (47.7) .380 (9.65) .350 (8.89) .032 (0.8) .47 (11.9)
PPW-15 1.88 (47.7) .500 (12.7) .500 (12.7) .032 (0.8) .50 (12.7)
L
D
1.0”
Min.
0.125”
Max.
W
H
E
Semi-Precision Power
Wirewound Resistor for
Pulse & Surge Applications
Temperature Rise Chart
250
200
150
100
50
0
0 20 40 60 80 100 120
Percent Rated Load
Hot Spot Temperature (°C)
PPW-3
PPW-5
PPW-7
PPW-15
PPW-10
PPW-2
PPW Series Issue May 2009 Sheet 2 of 3
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
Wire and Film Technologies Division
Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com
Power Derating Curve
100
80
60
40
20
00 50 100 150 200 250
Ambient Temperature (°C)
Percent Rated Load
PLO-15
Max. Recommended
Ambient Operating
Temperature 150°C
25 40
PPW-3, 5, 7, 10
PPW-2
Sample Part No.
IRC Type
PPW
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
Ordering Data
PPW 10 15R0 G LF
Semi-Precision Power
Wirewound Resistor for
Pulse & Surge Applications
PPW Series Issue May 2009 Sheet 3 of 3
