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Specifications
Resistance:
500mΩ
Type:
-
Power(Watts):
800W
Tolerance:
±5%
Temperature Coefficient:
±500ppm/℃
Mfr. Part #:
LPS0800HR500JB
Key Attributes
Model Number:
LPS0800HR500JB
Product Description
Product Overview
The Vishay Sfernice LPS 800 is a high-power thick-film resistor designed for mounting onto a heatsink. It offers a high power rating of 800 W at 85 C bottom case temperature and a wide resistance range from 0.3 to 900 k. The non-inductive design, easy mounting, and low thermal radiation of the case make it suitable for demanding applications. It is compliant with NF-EN45545-2 requirement #26.
Product Attributes
- Brand: Vishay Sfernice
- Technology: Thick Film
- Flammability: Insulated case UL 94 V-0
- Certifications: Compliant with requirement #26 of NF-EN45545-2
- Material Categorization: See www.vishay.com/doc?99912
Technical Specifications
| Model | Resistance Range () | Rated Power (P85C) (W) | Limiting Element Voltage (UL) (V) | Tolerance (%) | Temperature Coefficient (ppm/C) | Critical Resistance () | Weight (g) | Temperature Range (C) | RTH (j-c) (C/W) | Dielectric Strength (VRMS) | Insulation Resistance (M) | Inductance (H) |
| LPS 800 | 0.3 to 900K | 800 | 5K | 1, 2, 5, 10 | 150, 300, 500 | 31.25K | 83 10% | -55 to +175 | 0.112 | 7k or 12k | 104 | 0.1 |
| LPS 800 I5U 5% V2 | 64.7 | 13.6 | 25.8 | 1 | 15.2 0.5 | 21.2 | 25.2 | -55 to +175 | 0.112 | 7k or 12k | 104 | 0.1 |
Performance Tests
| Test | Standard | Conditions | Requirement |
| Momentary Overload | IEC 60115-1 | 1.5 x Pr / 10 s | Umax. UL = 5000 V (0.25 % + 0.05 ) |
| Rapid Temperature Change | IEC 60115-1/IEC 30068-2-14 Test Na | 50 cycles -55 C to +175 C | (0.5 % + 0.05 ) |
| Load Life | IEC 60115-1 | 1000 h (90/30) Pr at 85 C | (0.5 % + 0.05 ) |
| Humidity (Steady State) | IEC 60115-1 | 56 days RH 95 % / 40 C | (0.5 % + 0.05 ) |
| Vibration | MIL STD 202 method 204 cond. D (10 g; 5/500 Hz) | (0.25 % + 0.05 ) | |
| Climatic Sequence | IEC 60115-1 (55 / 175 / 56) | (1 % + 0.05 ) |
Heatsink Mounting Configurations
| Configuration | Heatsink Type | Thermal Interface | Power Dissipation (W) | T Resistive Element (C) | RTH (j-c) max. (C/W) | RTH (c-h) typ. (C/W) | RTH (h-a) max. (C/W) | Fluid T (C) |
| 1: Water Cooling | CP15 (Lytron) | Bluesil Past 340 | 710 | 175 | 0.112 | 0.05 | 0.059 | 18 |
| 2: Air Cooling | P207/250 (Semikron) | Bluesil Past 340 | 282 | 175 | 0.112 | 0.13 | 0.29 | 25 |
| 3: Water Cooling | CP15 (Lytron) | Q-Pad II | 307 | 175 | 0.112 | 0.34 | 0.059 | 18 |
| 4: Air Cooling | P207/250 (Semikron) | Q-Pad II | 180 | 175 | 0.112 | 0.43 | 0.29 | 25 |
2412061705_VISHAY-LPS0800HR500JB_C20250845.pdf
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