Thick Film Power Resistors
Type MPT Series
Type MPT Series
Characteristics -
Electrical
Resistance Range:
Selection Series:
Rated Power with Suitable Heatsink:
Rated Power without Heatsink:
Maximum Operating Voltage:
Dielectric Strength:
Insulation Resistance:
The MPT Resistor series are a
range of T0220 packaged, low
inductance thick film power
resistors which complement the
thin film MPR series.
This small size, high power device
packaged in 5 case sizes are
ideally suited to applications where
high power dissipation yet small
size are key design requirements.
The MPT Resistor series are the
ideal solution for small snubber
circuits, the output side of high
speed pulse generators and low
inductive resistor requirements in
switch mode power supplies.
MPT20
R10 - 10K
20W
3W
MPT30
R10 - 10K
30W
2.25W
MPT35
R10 - 10K
E24
35W
2.5W
350V
1800VAC
10G min.
MPT50
R10 - 10K
50W
3W
MPT100
R10 - 10K
100W
3.5W
Operating Temperature Range:
-65°C to +150°C
-65°C to
+175°C
TCR / Tolerance Value Chart
MPT 20 / 30 / 35 / 50
Resistance Range
/ Tolerance
R10 - 2R7
3R - 10R
3R - 10R
11R - 10K
11R - 10K
11R - 10K
1% / 5% / 10%
300ppm
100ppm
200ppm
50ppm
100ppm
200ppm
0.5%
-
-
-
50ppm
100ppm
200ppm
MPT100
1% / 5% / 10%
300ppm
100ppm
200ppm
50ppm
100ppm
200ppm
Key Features
■
■
■
■
■
Small size TO220
package
Easy to mount
Isolated moulded case
Non inductive
High Power up to
100W with suitable
heatsink
Characteristics -
Environmental
Short Time Overload:
Characteristic
ΔR± 0.3%
MPT100 - ΔR± 0.5%
Load Life:
Moisture Resistance:
Thermal Shock:
Terminal Strength:
Vibration, High Frequency:
ΔR± 1.0%
ΔR± 0.5%
MPT100 - ΔR± 0.5%
ΔR± 0.3%
MPT100 - ΔR± 0.5%
ΔR± 0.2%
ΔR± 0.2%
MPT100 - ΔR± 0.4%
Test Method
2 times rated power with applied voltage not
to exceed 1.5 times maximum continuous
operating voltage for 5 seconds
1.5 times rated power and V(dc)
=<1.5Vmax for 5 seconds
MIL-PRF-39009D, 2000 hours at
rated power
MIL-STD-202F, Method 103B
-10C~+65C, RH>90%, cycle 240 hours
MIL-STD-202F, Method 107G
MIL-STD-202F, Method 211, Cond. A
(Pull Test) 2.4N
MIL-STD-202F, Method 204, Cond. D
Case Temperature to be used for definition of Applied Power Limit
Case Temperature Measurement must be made with a thermocouple contacting centre of component mounted
on designed heatsink
Thermal grease should be correctly applied
Power Derating Curve
100
Rated Power (%)
80
60
40
20
0
0
25
50
75
100
Case Temp. (degC)
125
150
175
MPT20, MPT30, MPT35, & MPT50
MPT100
Literature No. 1773180
Issued: 03-08
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
Specifications subject to
change.
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