PPW Datasheet, PDF (1/2 Pages) Welwyn Components Limited – Semi-Precision Power Wirewound Resistors

R^Se^es^mistⁱo^-r^Ps^{recision Power}
Wirewound Resistors
Semi-Precision Power
W^PPWi^Sr^ee^riew^s ound Resistors
• Ideal for pulse and surge
PPW_apS_per_li_ie_cs_ations
•
2 watts to 15 watts
Ideal for pulse and surge
applications
• ^R₂^e_w^s_a^is_tt^t_s^a_tⁿ_o^c₁^e₅^t_w^o_a⁰_tt^R_s^{1 ohms to 5K ohms}
• ^±Re³s^%ist^,a^±n²ce^%to^o0^rR^±1¹o^%hm^ts^ot^lo^er5^aKⁿo^ch^ems
• ^{±32%0,p±p2m% /o°rC±1T%CRtolerance}
±20 ppm/°C TCR
Welwyn Components
Electrical Data
Power rating at 25°C
Resistance range
PPW-2 PPW-3 PPW-5 PPW-7 PPW-10
watts
2
3
5
7
10
ohms 0R1 to 1K6 0R1 to 1K6 0R1 to 1K6 0R1 to 2K5 0R1 to 5K
PPW-15
15
0R1 to 5K
Physical Data
Dimensions (mm)
Type
PPW-2
PPW-3
PPW-5
PPW-7
PPW-10
PPW-15
L ± 0.8
17.05
22.3
22.3
35.3
47.7
47.7
W ± 0.8
6.99
7.87
9.65
9.65
9.65
12.7
H ± 0.8
6.99
7.87
8.89
8.89
8.89
12.7
d dia.
0.8
0.8
0.8
0.8
0.8
0.8
E ± 0.8
8.134
9.65
10.4
11.9
11.9
12.7
Standard Configuration
25.4
L
min
Alternate Configuration
d
W
H
3.17 max.
E
Temperature Rise
250
200
150
100
50
PPW-15
PPW-10
PPW-7
PPW-5
PPW-3
PPW-2
0
0 20 40 60 80 100 120
% Rated Load
Power Derating
100 ^{25 40 85}
80
60
PPW-15
PPW-2
PPW-3, 5, 7, 10
150
40
Max. Recommended
Ambient Operating
20
Temperature 150°C
0
0
50 100 150 200 250
Ambient Temperature (°C)
Lighting Surge Capabilities for PPW-2
Resistive range
1R to 9R9
10R to 29R9
30R to 99R
100R to 1K6
ohms
10 x 1000*
250V
500V
600V
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.
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.
© TT Electronics plc
BI Technologies IRC Welwyn
www.ttelectronicsresistors.com
05.16