type mpr series this small size non-inductive, high power resistor is an innovative and significant first for tyco electronics. 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. key features small size (t0220 package) easy to mount non inductive high frequency range up to 300mhz temperature range -55c to +155c high power 20w with suitable heatsink voltage proof 2000v dc non flammable power derating curve load life in high temperature & humidity (70c 95% dc rated power x 0.1) continuous characteristics - electrical resistance range: r22 - r91 1r0 - 9r1 10r - 51k resistance tolerance: 5% 5% 1% / 5% temp. coefficient of resistance (tcr): 250ppm/c 100ppm/c 50ppm/c rated power (on suitable heatsink): 20 watts rated power (w/o heatsink): 2 watts * (see note below) equivalent parallel capacitance: 1.0 pf maximum operating voltage: 500v dc withstand voltage: 2000 v dc (between terminals and heatsink) operating temperature range: -55c to +155c rated ambient temperature: -25c to +40c * with a 5.8c watt heatsink or better at a 25c ambient temperature, 20 watts can be dissipated a larger heatsink will allow the resistor to run at a lower temperature. characteristics - mechanical test condition specification life (rated power): 40c, rated power, 90 min-on, r (1.0% + 0.05 ohm) 30 min off, 1000 hours life (moisture load): 60c, 90 - 95% rh, rated power, r (1.0% + 0.05 ohm) 90 min on 30 min off, 1000 hours temperature cycling: room temp > -55c 30 min > r (0.25% + 0.05 ohm) rt, 10 min 120c 30 min > rt 10 min, 5 cycles short time overload: rated voltage x 2.5, 5sec r (0.25% + 0.05 ohm) soldering heat: 350c 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) radial leaded high power resistors type mpr series literature no. 1773251 issued: 10-08 dimensions are shown for reference purposes only. dimensions are in millimetres unless otherwise specified. specifications subject to change. tycoelectronics.com passives.tycoelectronics.com
radial leaded high power resistors type mpr series literature no. 1773251 issued: 10-08 dimensions are shown for reference purposes only. dimensions are in millimetres unless otherwise specified. specifications subject to change. tycoelectronics.com passives.tycoelectronics.com dimensions how to order mpr 20 c 680r j common part 20 - 20 watts wattage rating @ 25c with heatsink c - 50ppm/c a - 100ppm/c h - 250ppm/c 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% pcb piercing plan
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