RPH100V2R200JB Vishay, RPH100V2R200JB Datasheet - Page 2

• Manufacturer Part Number: RPH100V2R200JB
• Description: RESISTORS, 100W 2R2RESISTOR, 100W 2R2
• Manufacturer: Vishay
• Type: Thick Filmr
• Series: RCHr

Specifications of RPH100V2R200JB

• Case Style: Aluminum Housed
• Power Rating(s): 100W
• Resistance: 2.2Ohm
• Tolerance (+ Or -): 5%
• Temperature Coefficient: ±150
• Mounting Style: Flange
• Construction: Rectangular
• Operating Temp Range: -55C to 125C
• Termination Style: Screw Terminal
• Military Standard: Not Required
• Failure Rate: Not Required
• Product Length (mm): 65.5mm
• Product Height (mm): 21.6mm
• Product Depth (mm): 46.7mm
• Thick Film: RESISTANCE
• Power Rating: 10W
• Tolerance, +: 5%
• Tolerance, -: 5%
• Temp, Op. Max: 125(DEGREE C)
• Temp, Op. Min: -55(DEGREE
• Rohs Compliant: YES
• Lead Free Status / RoHS Status: Compliant

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:
Example:
R
Thermal resistance R
Considering equation (1) we have:
RECOMMENDATIONS FOR MOUNTING ONTO A HEATSINK
Surfaces in contact must be carefully cleaned.
The heatsink must have an acceptable fl atness: 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: 10-Oct-08
TESTS
Short Time Overload
Rapid Temperature Change
Load Life (Chassis Mounted 0.45 °C/W)
Humidity (Steady State)
Ohmic Value
Standard Tolerance
Standard TCR
Tolerance On Request
TH
PERFORMANCE
RESISTANCE VALUE IN RELATION TO TOLERANCE AND TCR
: (c-a) for RPH 100 power rating 80 W at ambient temperature + 40 °C.
P:
T:
R
R
TH
TH
:
:
ΔT ≤ 125 °C - 40 °C ≤ 85 °C
R
R
Expressed in W
Difference between maximum working temperature and room temperature.
(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.
(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.
TH
TH
(j-c) + R
(c-a) ≤ 1.06 °C/W - 0.55 °C/W ≤ 0.51 °C/W
TH
(j-c): 0.55 °C/W
TH
(c-a) =
Power Resistor for Mounting onto a Heatsink
ΔT
-------
P
=
85
----- -
80
MIL STD 202 Method 103 B Test D
NF EN 140000 CEI 68214 Test Na
= 1.06 °C/W
For technical questions, contact: [e-mail]
NF EN 140000 CEI 115_1
5 cycles - 55 °C + 125 °C
P
Thick Film Technology
=
± 300 ppm/°C
P
4 P
56 days 95 % RH
----------------------------------------------------------------- -
[
n
NF EN 140000
R
CONDITIONS
at 25 °C 1000 h
± 5 %
< 1 Ω
n
TH
/5 s U
(
j c
–
S
)
< 2 U
ΔT
+
R
TH
L
(
c a
–
)
]
± 1 % - ± 2 %
1 ( )
< ± (0.25 % + 0.05 Ω)
< ± (0.25 % + 0.05 Ω)
< ± (0.5 % + 0.05 Ω)
< ± (0.5 % + 0.05 Ω)
REQUIREMENTS
± 150 ppm/°C
± 5 %
> 1 Ω
Vishay Sfernice
RPH 100
www.vishay.com
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