RPH100V10002JB [VISHAY]
Power Resistor for Mounting onto a Heatsink Thick Film Technology; 功率电阻安装在散热片厚膜工艺
| 型号： | RPH100V10002JB |
| 厂家： | 
VISHAY |
| 描述： | Power Resistor for Mounting onto a Heatsink Thick Film Technology |
| 文件： | 总4页 (文件大小：150K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RPH 100
Vishay Sfernice
Power Resistor for Mounting onto a Heatsink
Thick Film Technology
FEATURES
• High power rating
RoHS
• Low thermal radiation of the case
COMPLIANT
• Wide ohmic value range
• Easy mounting
• High overload capabilities
• Reduced size and weight
This new style has been developed as an extension to RCH range. Through the use of thick film technology, a non-inductive
solution for power resistors is available which are rated up to 100 W at + 25 °C. The terminations position prevents any risk of
an electrical arc to the heatsink.
This resistor series can replace and offer advantages to standard wirewound devices.
DIMENSIONS in millimeters
RPH 100
V Connections
42,4
4
16,6 18,6 21,6
65,5
35
ø 4,2
26 37 46,7
ø 4,2
MECHANICAL SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
Mechanical Protection
Substrate
Insulated case
Resistance Range
Tolerances
Power Rating:
0.092 Ω to 1 MΩ E24 series
Alumina on metallic
base of nickel coated
aluminum
1 ꢀ to 10 ꢀ
Continuous
100 W at 25 °C
chassis mounted 0.45°C/W
10 W at 25 °C
Resistive Element
End Connections
Tightening Torque Connections
Tightening Torque Heatsink
Weight
Cermet
V connections: screws M4 x 6
1 Nm
3 Nm
60 g
Free air
Momentary
400 W at 25 °C for 5 seconds
Temperature Coefficient
Standard
300 ppm/°C ꢁ 1 Ω
150 ppm/°C ꢂ 1 Ω
1900 VRMS
ENVIRONMENTAL SPECIFICATIONS
Limiting Element Voltage
Dielectric Strength MIL STD 202
Insulation Resistance
Inductance
Thermal Resistance
Temperature Range
Climatic Category
RTH (j-c) 0.55 °C/W
- 55 °C + 125 °C
55/125/56
5 kVRMS 1minute 10 mA Max
> 106 MΩ
ꢁ 0.1 µH
www.vishay.com
24
Document Number: 50046
Revision 30-May-06
For technical questions, contact sfer@vishay.com
RPH 100
Vishay Sfernice
Power Resistor for Mounting onto a Heatsink
Thick Film Technology
PERFORMANCE
TESTS
CONDITIONS
TYPICAL DRIFTS
Short Time Overload
NF EN 140000 CEI 115_1
4 Pn/5 seconds
ꢁ
ꢁ
(0.25 ꢀ + 0.05 Ω)
(0.25 ꢀ + 0.05 Ω)
(0.5 ꢀ + 0.05 Ω)
(0.5 ꢀ + 0.05 Ω)
Rapid Temperature Change
NF EN 140000 CEI 68214 Test Na
5 cycles - 55 °C + 125 °C
Load Life (chassis mounted 0.45°C/W)
Humidity (steady state)
NF EN 140000
Pn at 25 °C 1000 hours
ꢁ
MIL STD 202 Method 103 B Test D
56 days 95 ꢀ R.H.
ꢁ
RESISTANCE VALUE IN RELATION TO TOLERANCE AND TCR
Ohmic Value
ꢁ 1Ω
5 ꢀ
ꢂ 1 Ω
5 ꢀ
Standard Tolerance
Standard T.C.R.
300 ppm/°C
150 ppm/°C
Tolerances On Request
1 ꢀ - 2 ꢀ - 10 ꢀ
CHOICE OF THE HEATSINK
The user must choose according to the working conditions of the component (power, room temperature).
Maximum working temperature must not exceed 125 °C. The dissipated power is simply calculated by the following ratios:
ΔT
(1)
P =
[RTH(j-c) + RTH (c-a)]
P:
expressed in W
ΔT: 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: 0.55 °C/W.
RTH: (c-a): thermal resistance value measured between outer side of the resistor and room temperature. It is the
thermal resistance of the heatsink itself (type, shape) and the quality of the fastening device.
Example:
RTH: (c-a) for RPH 100 power rating 80 W at ambient temperature + 40 °C.
Thermal resistance RTH (j-c): 0.55 °C/W
Considering equation (1) we have:
ΔT ≤ 125 °C - 40 °C ≤ 85 °C
85
80
ΔT
P
RTH (j-c) + RTH (c-a) =
=
=1.06 °C/W
RTH (c-a) ≤ 1.06 °C/W - 0.55 °C/W ≤ 0.51 °C/W
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
SI 340 from Rhône-Poulenc or Dow 340 from Dow Corning).
The fastening of the resistor to the heatsink is under pressure control of four screws (not supplied).
Tightening torque: 3 Nm
In order to improve the dissipation, either forced-air cooling or liquid cooling may be used.
Do not forget to respect an insulation value between two resistors (dielectric strength in dry air 1 kV/mm).
Document Number: 50046
Revision 30-May-06
www.vishay.com
25
For technical questions, contact sfer@vishay.com
RPH 100
Power Resistor for Mounting onto a Heatsink
Thick Film Technology
Vishay Sfernice
OVERLOADS
In any case the applied voltage must be lower than 2 Un.
U maxi ꢁ 2 Un ꢁ 3800 V
Short time overload: 4 Pn/5 seconds
Accidental overload: The values indicated on the graph below are applicable to resistors in air or mounted onto a heatsink.
ENERGY CURVE
1000
100
10
1
0.1
1.10-7
1.10-6
1.10-5
1.10-4
1.10-3
1.10-2
1.10-1
1
OVERLOAD DURATION IN SECONDS
POWER RATING CHART
For resistor mounted onto a heatsink with thermal resistance of 0.45 °C/W.
100
80
60
40
20
0
Packaging Box of 5 units
0
20
40
60
80
100
120
140
AMBIENT TEMPERATURE IN DEGREES CELSIUS
MARKING
Series, style, ohmic value (in Ω), tolerance (in ꢀ), manufacturing date, SFERNICE trade mark.
ORDERING INFORMATION
RPH
100
100K
5 ꢀ
V
XXX
B05
e
MODEL STYLE RESISTANCE VALUE TOLERANCE CONNECTIONS CUSTOM DESIGN
PACKAGING
LEAD (Pb)-FREE
Optional
1 ꢀ
Options
on request
TCR, shape,
etc.
V: screw M4
2 ꢀ
5 ꢀ
10 ꢀ
SAP PART NUMBERING GUIDELINES
RPH
100
V
10002
OHMIC VALUE
J
B
MODEL
STYLE
CONNECTIONS
TOLERANCE
PACKAGING
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26
Document Number: 50046
Revision 30-May-06
For technical questions, contact sfer@vishay.com
Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
www.vishay.com
1
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