High Power Resistors
Type MPH Series
Type MPH Series
Characteristics -
Electrical
Resistance Range:
Power Rating:
MPH323025 / MPH323818
R01 - 100R
3W (70°C) without heatsink
40W with heatsink
MPH543825H / MPH344618
R001 - 100R
3W (70°C) without heatsink
(5W for MPH543825H)
40W with heatsink
(50W for MPH543825H)
1.6 K/W
1%, 5%
0.5%, 1%, 5%
Thermal Resistance Rthj-c:
Tolerances: from R001:
from R005:
from R010:
The MPH resistor complements the
MPX Series by adding an even higher
power rating. With this, user in the area
of low ohmic precision can add a 50W
device when mounted on a suitable
heatsink. By using metal foil on a good
heatsink high stability is achieved.
Uniform current and power dissipation
are the result of tin plated copper
terminations with a large surface area.
Because of the planar construction the
MPH resistor is also non-inductive. The
materials used and robust construction
guarantee high reliability. The 4
terminal version (Kelvin terminations)
can be used where high stability,
temperature stability and thermal
energy are required.
2.0 K/W
0.1%, 0.5%, 1%, 5%
0.1%, 0.5%, 1%, 5%
0.1%, 0.5%, 1%, 5%
0.1%, 0.5%, 1%, 5%
from R020:
Stability:
Temperature Coefficient:
0.1%, 0.5%
0.1%, 0.5%
(depends on stress) (depends on stress)
±15ppm/°C (20°C to 60°C)
±25ppm/°C (20°C to 60°C)
F Terminal
±15ppm/°C (20°C to 60°C)
±25ppm/°C (20°C to 60°C)
F Terminal
500 VDC
1µV/°C
150A / (200A F Terminal)
MPH323025 / MPH323818 TCR Shift (see table below)
Voltage Proof:
Thermal EMF:
Maximum Current:
500 VDC
1µV/°C
150A / (200A F Terminal)
Characteristics -
Mechanical
Resistor Material:
Substrate:
Housing:
Connector Material:
Maximum Torque Back-Plate:
Metal Foil CuNiMn (to DIN 17471)
Anodized Aluminium
Epoxy
Cu Tinned, 2 and 4 pin
1Nm
Key Features
I
I
I
I
I
I
50 Watt High Power
Dissipation
Extremely Low Ohmic Values
Low Inductance
High Stability
Kelvin Terminations
Low TCR
Characteristics -
Environmental
Operating Temperature Range:
-40°C to 130°C
Temperature Coefficient
2000
1000
0
-1000
∆R/R
(ppm)
-2000
-3000
Limit 2 (3δ)
- 15 ppm/K
TCR Shift
250
+ 15 ppm/K
200
TCR - Shift (ppm/K)
150
100
-4000
-5000
-6000
Limit 1 (3δ)
Nominal
∆R/R
50
-7000
-40
-20
0
20
40
60
80
100
120
140
0
2
5
10 20 50 100 200
Resistance Value (mOhm)
Heatsink - Temperature (°C)
Literature No. 1773250
Issued: 11-05
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
www.tycoelectronics.com
passives.tycoelectronics.com
High Power Resistors
Type MPH Series
Power Derating Curve
120
Power (% from nominal power)
100
0.5%
80
0.2%
60
0.1%
40
20
0
25
50
85
100
115
130
Temperature of the Backplate (°C)
Dimensions -
MPH343825
MPH323025
MPH344618
MPH323818
MPH343825---F
MPH343825H
Literature No. 1773250
Issued: 11-05
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
www.tycoelectronics.com
passives.tycoelectronics.com
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