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| 型号： | LPS0600H4R70JB |
| 厂商： | Vishay Sfernice |
| 文件页数： | 2/5页 |
| 文件大小： | 0K |
| 描述： | RESISTOR HEAT SINK 4.7 OHM 600W |
| 产品目录绘图： | LPS Series Top LPS Series Side |
| 标准包装： | 15 |
| 系列： | LPS 600 |
| 电阻（欧姆）： | 4.7 |
| 功率（瓦特）： | 600W |
| 复合体： | 厚膜 |
| 特点： | 非电感 |
| 温度系数： | ±300ppm/°C |
| 容差： | ±5% |
| 安装特点： | 法兰 |
| 尺寸/尺寸： | 2.362" L x 2.244" W（60.00mm x 57.00mm） |
| 高度： | 1.000"（25.40mm） |
| 引线型： | M4 螺纹 |
| 包装： | 散装 |
| 封装/外壳： | 盒 |
| 产品目录页面： | 2280 (CN2011-ZH PDF) |
| 其它名称： | LPS 600 H 4U7 5% BO15 E LPS-4.7B |
LPS 600
www.vishay.com
PERFORMANCE
Vishay Sfernice
TESTS
Momentary Overload
Rapid Temperature Change
Load Life
Humidity (Steady State)
Vibration
Climatic Sequence
CONDITIONS
IEC 60115-1
2 x P r /10 s
U max. ≤ U L = 5000 V
IEC 60115-1/IEC 60068-2-14 Test Na
50 cycles
- 55 °C to + 155 °C
IEC 60115-1
1000 h (90/30) P r at 85 °C
IEC 60115-1
56 days RH 95 %/40 °C
MIL STD 202 method 204 cond. D
(10 g ; 5/500 Hz)
IEC 60115-1
(55/155/56)
REQUIREMENTS
± (0.25 % + 0.05 Ω )
± (0.5 % + 0.05 Ω )
± (0.5 % + 0.05 Ω )
± (0.5 % + 0.05 Ω )
± (0.25 % + 0.05 Ω )
± (1 % + 0.05 Ω )
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.
Tightening Torque on Heatsink
LPS 600
2 Nm
Δ T
? 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 = -------------------------------------------------------------------------------------------
R TH (j - c) + R TH (c - h) + R TH (h - a)
P:
Δ T:
R TH (j - c) :
R TH (c - h) :
R TH (h - a) :
Expressed in W
Difference between maximum working temperature and room temperature
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).
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.
Thermal resistance of the heatsink.
Δ T 105
R TH (j - c) + R TH (c - h) + R TH (h - a) = ------- = -------- = 0.58 °C/W
Example:
R TH (c - a) for LPS 600 power dissipation 180 W at + 50 °C room temperature.
Δ T ≤ 155 °C - 50 °C = 105 °C
P 180
R TH (j - c) = 0.112 °C/W
R TH (c - h) + R TH (h - a) = 0.58 °C/W - 0.112 °C/W = 0.468 °C/W
Revision: 24-Oct-13
2
Document Number: 50053
For technical questions, contact: sferfixedresistors@vishay.com
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
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