POWER - NIKKOHM

RoHS 2

TO220 50W HIGH POWER RESISTORS

RMP-50UFeatures and Applications
50W high power resistors in TO220 style mold package for and screw mount.
Non-inductive design suits high frequency applications and high-speed pulse circuits.
Low, 2.3 deg °C/W heat resistance from resistor hot spot to flange and long life performance arepresented with thin film metallization technology and rejection of plastic adhesive joint.
Wide 20 milli Ohm to 510kOhm resistance range, non-inductive impedance characteristic and heat
conduction through the insulated metal flange aids circuit designers.
Small size and thin profile suit high-density compact installations.
Complete thermal conduction, heat dissipation design and vibration durable design also available.
Applications include snubber, gate control, bleeder, filter, rush current protection, braking resistors ofautomotive, rail traction, wind turbine, PV, UPS and motor control inverters.
.

Dimensional Specifications (mm)Structure and Materials

DK
J
H

E

M

FGB

N

K
L
A

C

A
B
C
DE
FGH
JKL
M
N

RMP-50U
mm+/-mm10.1+/-0.2
15.0+/-0.2
4.5+/-0.2
3.6+/-0.1
5.0+/-1.0
2.5+/-0.5
3.0+/-0.2
2.75+/-0.20.5+/-0.05
0.75 +/-0.05
1.5+/-0.05
5.08 +/-0.10
1.5+/-0.05

Molding, epoxy, UL94-V0
Leads, Tin plated Cu
Conductor, Copper
Resistor, Ni-Cr or RuO
Substrate, Alumina
Flange, Ni plated Cu

Between flange and resistor is insulated.

Ordering Information
RMP-50U|
RMP-50UC|
H ( >250ppm)
A (100ppm)
C (50ppm)>>>

10R0 (*)|
R02-R09 (+E6)
R10-510K(+E24)
10R-51K (+E24)

F|
>
J(5%)
> F(1%), J(5%)>F(1%)

Z01
|
Z01
Z03
Z05 *>>>Note|Tape reel/500pcs
Tube/50pcs
Tray/100pcs* TO263 type resistor packaging Z05 (tray) has a risk of lose of flatness, co-planarity.
Resistance value (*) is available following modified E24, +E24.

1.0
1.1
1.2
1.3
1.5
1.6
1.8
2.0
2.2
2.4
2.5
2.7
3.0
3.6
3.9
4.0
4.3
4.7
5.0
5.1
5.6
6.2
6.8
7.5
8.0
8.2
Note*: When ordering, additional ohm resistance notation is recommended for keeping out of misunderstanding.
Nikkohm Co., Ltd. 3-31-2640 Minamicho, Misawa, Aomori 033-0036 Japan TEL: +81-176-53-2105, FAX: +81-176-53-2106
Copyright © Nikkohm Co., Ltd.
URL: http://www.nikkohm.co.jp & http://www.nikkohm.com / e-mail: info@nikkohm.co.jp

3.3
9.1

POWER - NIKKOHM

RoHS 2

RMP-50U

TO220 50W HIGH POWER RESISTORS
Specifications
RMP-50U
50 Watt
1 Watt2.3 °C/W
0.02-0.09 Ω
0.1-510KΩ
10-51K Ω
E6
E24+E24250(H)
100 (A)
50 (C)
5%(J)
1% (F), 5% (J)+/-1% (F)Thick FilmThin Film
1.69pF9.65nH-55 °C to +175 °C
smaller either 700V or P × R
2000VAC+/- 1.0 %+/- 1.0 %+/- 0.25 %+/- 0.1 %Over 95% of surface
Over 1,000 Meg ohm+/- 0.25 %2.1 grams

Rated PowerRating PowerHeat ResistanceResistance Range
Nominal Resistance
TCR, ppm/deg C
Tolerance
Resistor Material
CapacitanceInductanceCategory Temp.
Max. Element Volt.
Voltage Proof
Load Life
Humidity
Temp. Cycle
Soldering Heat
Solder ability
Insulation ResistanceVibration
WeightDeratingTest Conditions-55 °C to 25 °C flange temperature
Free air.
Hot spot to flange
Note 2
Include 2.5, 4.0, 5.0, 8.0 and 16
Note 3
1% tolerance at 0.01-0.091 ohm is available optionally.
Equivalent parallel capacitance.
Equivalent series inductance
P is rating power and R resistanceTerminal and flange, 60 seconds, 1mA
25 °C, 90 min. ON, 30 min. OFF, 1000 hours.
40 °C, 90-95%RH, DC 0.1W, 1000 hours.
-55 °C,30 min.,+155 deg C,30 min., 5cycles
350+/-5 °C, 3seconds,245+/-5 °C, 3seconds.
Between terminals and flange.
IEC60068-2-6, see note 4

Temperature RiseTemperature Rise (deg C)

Rating Power (W)

140+25°C+25°C

50

RMP-50UC500 F

120
100

408030Hot spot temperature on resistor basedreferenced from flange temperature.

60

2040+175°C

100-50050
100
150Flange Temperature (°C)

2000200

100k

30Power (Watt)

4050

Impedance (ohm)
1k
RMP-50U C1K0F

RNP-50E C100F

Tentative continuous-pulse power allowance at duty 0.01.
Load life test will be necessary in actual equipment,Because curve will be changed by resistance, repetition,duty and operating temperature.

10k

20Frequency Characteristics

Pulse Durability
Pulse Peak Power(W)

10RMP-50U C101F
100

1kRMP-50U C100F
400W

50W

100
1010n

10RMP-50U C500F
RMP-50U C220F
1100k

1M
10M
100M
1G10G
Frequency (Hz)Note:(1) Insulation material is unnecessary between flange and heat-sink, flange and resistor is separated by alumina substrate.
(2) Resistance measurement shall be made at a point 5.27mm +/-0.6 mm from the resistor body.
(3) TCR of low resistance will be increased as 300ppm/0.02ohm, 200ppm/0.05ohm, 140ppm/0.1ohm and 80ppm/0.2ohm typically.
Testing point is at 5.27mm from bottom of molding of terminals.
2(4) Test method is IEC60068-2-6, and specification is sine sweep wave form, 100Hz-2000Hz, 10 cycles, amplitude 0.75mm or 100m/s ,290minutes. direction x-y z, Amplitude 0.75mm will be applied under break point Frequency (about 60Hz) and 100m/ s over breakpoint20210101
100n1u10u 100u 1m 10m 100m
Pulse Width(seconds)

110100

Nikkohm Co., Ltd. 3-31-2640 Minamicho, Misawa, Aomori 033-0036 Japan TEL: +81-176-53-2105, FAX: +81-176-53-2106
Copyright © Nikkohm Co., Ltd.
URL: http://www.nikkohm.co.jp & http://www.nikkohm.com / e-mail: info@nikkohm.co.jp