Radial Leaded High Power Resistors
Type MPR Series
Literature No. 1773251
Issued: 04-05
Dimensions are shown for
reference purposes only.
Dimensions are in millimetres
unless otherwise specified.
Specifications subject to
change.
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Key Features
■Small Size (T0220 Package)
■Easy to Mount
■Non Inductive
■High Frequency Range
up to 300MHz
■Temperature Range
-55°C to +155°C
■High Power 20W with
Suitable Heatsink
■Voltage Proof 2000V ac
■Non Flammable
Type MPR Series
This small size non-inductive, high
power resistor is an innovative and
significant first for Tyco. Occupying a
standard T0220 package it is ideally
suited to positions where high power
dissipation, small size and tight
tolerance are key design requirements.
This series is an ideal solution for
the output side of high speed pulse
generators, a surge absorption resistor
in switch mode power supplies and for
monitors, display terminals, scientific
workstations and other brown and
white goods.
Power Derating Curve Load Life in High Temperature and Humidity
(70°C 95% DC Rated Power x 0.1) Continuous
Characteristics -
Electrical
Resistance Range: R22 - 51K
Resistance Tolerance: E12 ± 5% E24 ± 1%
Temperature Coefficient of Resistance: 10R - 51K - 50ppm/°C (1% / 5%), 1R0 - 9R1 - 100ppm/°C (5%),
R22 - R91 - 250ppm/°C (5%)
Rated Power (on Suitable Heatsink): 20 watts
Rated Power (W/O Heatsink): 2 watts
Equivalent Parallel Capacitance: 1.0 pF
Maximum Operating Voltage: 500 V dc
Withstand Voltage: 2000 V dc (Between terminals and heatsink)
Operating Temperature Range: -55°C to +155°C
Rated Ambient Temperature: -25°C to +40°C
Characteristics -
Mechanical
Test Condition Specification
Life (Rated Power): 40°C, rated power, 90 min-on, ∆R ± (1.0% + 0.05 ohm)
30 min off, 1000 hours
Life (Moisture Load): 60°C, 90 - 95% RH, rated power, ∆R ± (1.0% + 0.05 ohm)
90 min ON 30 min OFF, 1000 hours
Temperature Cycling: Room temp > -55°C 30 min > ∆R ± (0.25% + 0.05 ohm)
RT, 10 min ± 120°C 30 min >
RT 10 min, 5 cycles
Short Time Overload: Rated voltage x 2.5, 5sec ∆R ± (0.25% + 0.05 ohm)
Soldering Heat: 350°C solder pot, 3sec ∆R ± (1.0% + 0.05 ohm)
Insulation Resistance: DC 100 V, 1 min Over 1000M ohm
Vibration: 10 - 50 Hz, 1 min, 20G, X-Y-Z 1 hour ∆R ± (0.5% + 0.05 ohm)
-50 0 25 50 75 100 125 155
100
75
50
25
0
Power Rating %
Case Temp. (Metal Tab. Temp. °C)
0 500 1000 1500 2000
0.21
0.01
0
-0.01
-0.02
0
Resistance Change (%)
Time (Hrs)
Dimensions PCB Piercing Plan
How to Order
MPR 20 C 680R J
Common Part
20 - 20 Watts
Wattage Rating @
25°C with Heatsink
C - 50ppm/°C
A - 100ppm/°C (5%)
H - 250ppm/°C (5%)
Temp. Coefficient
of Resistance
Resistance Value
MPR - High Power
Film Resistor
0.1 ohm
(100 milliohms) R10
1 ohm
(1000 millohms) 1R0
1K ohm
(1000 ohms) 1K0
Tolerance
F - 1±%
J - ±5%
