Thick Film Power Resistors
Type MPT Series
Type MPT Series
Characteristics Electrical
MPT20
Resistance Range:
R10 - 10K
Selection Series:
Rated Power with Suitable Heatsink: 20W
Rated Power without Heatsink:
3W
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.
MPT30
R10 - 10K
Operating Temperature Range:
MPT35
R10 - 10K
E24
35W
2.5W
350V
1800VAC
10G min.
30W
2.25W
MPT50
R10 - 10K
MPT100
R10 - 10K
50W
3W
100W
3.5W
-65°C to
+175°C
-65°C to +150°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
MPT100
1% / 5% / 10%
0.5%
1% / 5% / 10%
300ppm
100ppm
200ppm
50ppm
100ppm
200ppm
50ppm
100ppm
200ppm
300ppm
100ppm
200ppm
50ppm
100ppm
200ppm
Characteristics Environmental
Key Features
■
Small size TO220
package
■
Easy to mount
■
Isolated moulded case
■
Non inductive
■
High Power up to
100W with suitable
heatsink
Characteristic
ΔR± 0.3%
Short Time Overload:
MPT100 - ΔR± 0.5%
Load Life:
ΔR± 1.0%
Moisture Resistance:
ΔR± 0.5%
MPT100 - ΔR± 0.5%
ΔR± 0.3%
MPT100 - ΔR± 0.5%
ΔR± 0.2%
Thermal Shock:
Terminal Strength:
Vibration, High Frequency:
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
Rated Power (%)
100
80
60
40
20
0
0
25
50
75
100
Case Temp. (degC)
MPT20, MPT30, MPT35, & MPT50
Literature No. 1773180
Issued: 03-08
Dimensions are shown for
reference purposes only.
Dimensions are in
millimetres unless
otherwise specified.
125
150
175
MPT100
Specifications subject to
change.
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Thick Film Power Resistors
Dimensions MPT20
MPT30
2.92-3.44
1.14-1.40
11.43-13.97
2.54-4.06
11.43-13.97
3.08-3.28
2.54-4.06
1.14-1.40
2.92-3.44
16.0-16.52
10.15-10.67
16.0-16.52
10.15-10.67
2.92-3.44
Type MPT Series
0.40-0.60
0.40-0.60
4.82-5.34
1.52-2.04
1.52-2.04
0.66-0.86
MPT35
MPT50
2.85-3.05
4.06-4.82
9.91-10.41
10.15-10.67
3.55-3.75
16.00-16.52
4.82-5.34
0.66-0.86
2.92-3.44
5.85-6.35
1.17-1.37
12.70-14.70
4.00
14.50-15.00
1.20-1.40
4.83-5.33
0.55-0.70
1.14-1.40
0.40-0.60
4.82-5.34
1.52-2.04
2.05-2.52
0.70-0.86
15.49-16.01
11.43-13.97
5.07-5.59
20.44-20.96
MPT100
2.54-4.06
0.66-.086
4.69-5.21
3.53-3.73
3.45-3.81
0.55-1.07
1.42-1.62
13.21-15.75
2.03-3.55
9.90-10.42
2.15-2.67
How to Order
MPT
Common Part
MPT - TO220
High Power Resistor
20
Wattage Rating @ Temp. Coefficient
25°C with Heatsink
of Resistance
20 - 20 Watts
50 - 50 Watts
100 - 100 Watts
Dimensions are shown for
reference purposes only.
C - 50ppm/°C
30 - 30 Watts
35 - 35 Watts
Literature No. 1773180
Issued: 03-08
C
Dimensions are in
millimetres unless
otherwise specified.
A - 100ppm/°C
S - 200ppm/°C
T - 300ppm/°C
100R
F
Resistance Value
Tolerance
0.1 ohm
(100 milliohms) R10
D - 0.5%
1 ohm
(1000 milliohms)
1R0
F - 1%
1K ohm
(1000 ohm) 1K0
K - 10%
Specifications subject to
change.
J - 5%
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