PPW SERIES
SEMI-PRECISION POWER WIREWOUND RESISTOR
FOR PULSE & SURGE APPLICATIONS
•
•
•
•
•
2 watts to 15 watts
0.10 ohms to 5000 ohms
±3%, ±2%, or ±1% tolerance
±20 ppm/°C TCR
Lead Free, ROHS Compliant Construction
Allow wirewound
element
Inorganic fireproof
encapsulant
All welded
construction
Flameproof
ceramic housing
Heat conducting
ceramic substrate
SPECIFICATIONS:
Power at
25°C
IRC Type
PPW-2
PPW-3
PPW-5
PPW-7
PPW-10
PPW-15
(watts)
2
3
5
7
10
15
Resistance
Range (ohms)
0.1 to 1600
0.1 to 1600
0.1 to 1600
0.1 to 2500
0.1 to 5000
0.1 to 5000
LIGHTING SURGE CAPABILITIES FOR PPW-2:
Resistive Range 10 x 1000*
1 to 9.9Ω
250V
10 to 29.9Ω
500V
30 to 99Ω
600V
100 to 1600Ω
1000V
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.
Please note: When ordering the alternate configuration please add an 'A' after the part number. (i.e., PPW-3A)
DIMENSIONS (Inches and (mm)):
Standard Configuration
Alternate Configuration
IRC Type
PPW-2
PPW-3
PPW-5
PPW-7
PPW-10
PPW-15
L ±0.03 (0.8)
0.69 (17.05)
0.88 (22.3)
0.88 (22.3)
1.39 (35.3)
1.88 (47.7)
1.88 (47.7)
W ±0.03 (0.8)
0.275 (6.99)
0.310 (7.87)
0.380 (9.65)
0.380 (9.65)
0.380 (9.65)
0.500 (12.7)
H ±0.03 (0.8)
0.275 (6.99)
0.310 (7.87)
0.350 (8.89)
0.350 (8.89)
0.350 (8.89)
0.500 (12.7)
D Diameter
0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
0.032 (0.8)
E ±0.03 (0.8)
0.32 (8.134)
0.38 (9.65)
0.41 (10.4)
0.47 (11.9)
0.47 (11.9)
0.50 (12.7)
HOW TO ORDER:
TEMPERATURE RISE:
POWER DERATING:
Type
PPW 10 15Ω 2% LF
Hot Spot Temperature
% Rated Load
Power
10 = 10 watts
Resistance Value
Expressed in ohms
(Std. EIA/MIL Values)
Tolerance
% Rated Load
Ambient Temperature
±3%, ±2%, ±1% std.
Lead Free Construction
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.
Corpus Christi TX 78411 USA
Telephone: 361 992 7900 · Facsimile: 361 992 3377 · Email: afdsales@irctt.com · Website: www.
irctt.com
© IRC, Inc.
A subsidiary of
TT electronics plc
Issue
Preliminary
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