PDF《LPS 600》

LPS

600 www.

vishay.com Vishay Sfernice Revision: 05-Jun-2019

1 Document Number:

50053 For technical questions, contact: [email protected] 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 DESIGN SUPPORT TOOLS AVAILABLE FEATURES ? Compliant with requirement #26 of? NF-EN45545-2 ? High power

600 W at

85 °C bottom case temperature ? Wide resistance range: 0.3 ? to

900 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 Note ? Tolerances unless stated: ± 0.2 mm

3 3 D D

3 D 3D Models DIMENSIONS in millimeters STANDARD ELECTRICAL SPECIFICATIONS MODEL RESISTANCE RANGE ? RATED POWER P85 °C W LIMITING ELEMENT VOLTAGE UL V TOLERANCE ± % TEMPERATURE COEFFICIENT ± ppm/°C CRITICAL RESISTANCE (?) LPS

600 0.3 to 900K

600 5K 1, 2, 5,

10 150, 300,

500 41.66K

2 x M4 useful depth:

8 57

34 60

36 2 x ? 4.2 LPS

600 6K8

5 % V2 64.7 15.2 ± 0.5 21.2 25.2 13.6 ?

20 25.8 ±

1 MECHANICAL SPECIFICATIONS Mechanical Protection Insulated case UL

94 V-0 Resistive Element Thick film Substrate Alumina End Connections Screws M4 Tightening Torque Connections

2 Nm Tightening Torque Heatsink

2 Nm Maximum Torque 2.5 Nm Weight

83 g ±

10 % ENVIRONMENTAL SPECIFICATIONS Temperature Range -

55 °C to

155 °C Climatic Category 55/155/56 TECHNICAL SPECIFICATIONS Power Rating and ? Thermal Resistance

600 W at +

85 °C bottom case temperature RTH (j - c): 0.112 °C/W Temperature Coefficient R ?

1 ?: ±

500 ppm/°C

1 ? < R ?

10 ?: ±

300 ppm/°C

10 ? < R: ±

150 ppm/°C -55 °C/155 °C? IEC 60115-1 Standard Dielectric Strength ? IEC 60115-1,

1 min, ?

10 mA max.

7 kVRMS or

12 kVRMS Lightning test 1.2/50 μs? IEC 61000-4-5 Until

12 kV Insulation Resistance ?

104 M? Inductance ? 0.1 μH Partial Discharge? (for LPS

600 D only) ?

100 pC/7 kV ?

10 pC/5 kV Other cases: Consult us LPS

600 www.vishay.com Vishay Sfernice Revision: 05-Jun-2019

2 Document Number:

50053 For technical questions, contact: [email protected] 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 RECOMMENDATIONS FOR MOUNTING ONTO A HEATSINK ? Surfaces in contact must be carefully cleaned. ? The heatsink must have an acceptable flatness: From 0.05 mm to 0.1 mm/100 mm. ? Roughness of the heatsink must be around 6.3 μm. In order to improve thermal conductivity, surfaces in contact (alumina, heatsink) should be coated with a silicone grease (type Bluesil Past

340 from BlueStar Silicones) or a thermal film (type Q Pad II) easier and faster to install than the grease. ? The fastening of the resistor to the heatsink is under pressure control of two screws tightened at

2 Nm for full power availability. ? The following accessories are supplied with each product: -

2 screws CHC M4 x

25 class 8.8 and

2 M4 contact lock washers for heatsink mounting -

2 screws TH M4 x 6/6 and

2 M4 contact lock washers for connections CHOICE OF THE HEATSINK The user must choose the heatsink according to the working conditions of the component (power, room temperature). Maximum working temperature must not exceed

155 °C. The dissipated power is simply calculated by the following ratio: P: Expressed in W ?T: Difference between maximum working temperature and room temperature RTH (j - c): Thermal resistance value measured between resistive layer and outer side of the resistor.? It is the thermal resistance of the component: (see specifications environmental paragraph). RTH (c - h): Thermal resistance value measured between outer side of the resistor and upper side of the heatsink.? This is the thermal resistance of the interface (grease, thermal pad), and the quality of the fastening device. RTH (h - a): Thermal resistance of the heatsink. Example: RTH (c - a) for LPS