User guide

LPS 1100
www.vishay.com
Vishay Sfernice
Revision: 14-Jun-12
1
Document Number: 50059
For technical questions, contact: [e-mail]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
Power Resistor for Mounting onto a Heatsink
Thick Film Technology
FEATURES
• LPS high power: 1100 W
• Wide resistance range: 1  to 1.3 k
E24 series
•Non inductive
• Easy mounting
• Low thermal radiation of the case
• Material categorization: For definitions of compliance
please see www.vishay.com/doc?99912
Notes
• Tolerances unless stated: ± 0.2 mm
• Power dissipation is 1100 W by using a water cooled heatsink at T
water
= 15 °C of R
th
= 0.059 °C/W (25 °C to the nearest point of the resistor
onto heatsink) and R
th
contact estimated at 0.07 °C/W.
MECHANICAL SPECIFICATIONS
Mechanical Protection Insulated case and resin for
potting UL 94 V-0
Resistive Element Thick film
End Connections Screws M4
Tightening Torque Connections 2 Nm
Tightening Torque Heatsink 2 Nm
Maximum Torque 2.5 Nm
Weight 79 g ± 10 %
ENVIRONMENTAL SPECIFICATIONS
Temperature Range - 55 °C to + 200 °C
Climatic Category 55/200/56
DIMENSIONS in millimeters
2 x M4 useful depth: 8
57
34
60
36
2 x Ø 4.2
LPS 1100
I5U 5 %
V2
64.7
15.2
21.2
25.2
13.6
Ø 20
25.8 ± 1
ELECTRICAL SPECIFICATIONS
Resistance Range 1  to 1.3 k
Tolerances ± 1 % to ± 10 %
Power Rating and
Thermal Resistance
1100 W at + 25 °C
On heatsink
R
th(j-c)
: 0.039 °C/W
Temperature Coefficient
(- 55 °C to + 200 °C),
IEC 60115-1
± 150 ppm/°C
Dielectric Strength
IEC 60115-1,
1 min, 10 mA max.
7 kV
RMS
or 12 kV
RMS
Insulation  10
4
M
Inductance  0.1 μH