POWER - NIKKOHM

RoHS 2

TO220 35W HIGH POWER RESISTORS

RMP-20SFeatures and Applications
35W high power resistors in TO220 style mold package for surface mount.
Non-inductive design suits high frequency applications and high-speed pulse circuits.
Low, 3.3 °C/W heat resistance from resistor hot spot to flange and long life performance are presented
with thin film metallization technology and rejection of plastic adhesive joint.
Wide 20 milliohm to 51kOhm resistance range, non-inductive impedance characteristic and heat
conduction through the insulated metal flange aid 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 for UPS, power unit of machines, motor control, drive circuits, automotive, measurements,industrial computers and high frequency electronics.

Dimensional Specifications (mm)Structure and Materials

DK
J
H

E

M

FGB

NK
L
A

C

A
B
C
D
E
F
G
H
JKL
M

RMP-20S
mm
+/-mm
mm
+/-mm
10.1
+/-0.215.0+/-0.24.5+/-0.2
3.6+/-0.15.0+/-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

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-20S|
RMP-20S

C|
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/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

RoHS 2POWER - NIKKOHM

RMP-20S

35W HIGH POWER RESISTORS
Specifications

TypeRating Power
Rating PowerHeat ResistanceResistance Range
Nominal ResistanceTCR(ppm/°C)
Tolerance
Materials
CapacitanceInductanceCategory Temp.
Element Max.Volt.
Voltage Proof Volt.
Load Life
HumidityTemp. Cycle
Soldering Heat
Solder ability
Insulation ResistanceVibration
Weight

Test Conditions

RMP-20S
35 W
1 Watt
3.3 °C/W
0.01-0.091Ω
0.1-510KΩ
10-51KΩ
E6E24+
E24250(H)*100 (A)
50 (C)
5%(J)
1% (F), 5% (J)+/-1% (F)Thick FilmThin Film
1.44pF
8.38nH-55 °C to+175 °C
smaller value either 700V orP ⋅R
2000 VAC+/- 1.0 %+/- 1.0 %+/- 0.25 %+/- 0.1 %Over 95% of surface
Over 1,000 Meg ohm+/- 0.25 %2.1 grams

Derating-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.
40C, 90-95%RH, DC 0.1W, 1000 hours.
-55 °C,30 min.,+155 °C,30 min., 5cycles
350+/-5 °C, 3seconds,245+/-5 °C, 3seconds.
Between terminals and flange.
IEC60068-2-6, see note 4

Typical TCR in Low Ohms

Temperature RiseRating Power (W)Temperature Rise (deg C)

TCR (ppm/deg C) at 0 to 100 deg C

50100250

4080

20030602040+25°C+175°C

100-55150
Hot spot temperature ofresistor
referred
toflange temperature.

201005000050
100150
Flange Temperature (deg C)

2000102030
Applied Power (W)

40

50

0.01

0.1
Resistance (Ohms)

1.0

Pulse Energy Durability

Frequency Characteristics
Pulse peak power (W)100k

RMP-20S C100F

Typical continuous-pulse power allows at duty 0.01.
More load life test will be necessary in actual equipment,
Because curve will be changed by resistance, repetition, duty andoperating temperature. Dotted line shows assumption.

10k
1k

Impedance (ohm)1k
RMP-20S C1K0F
RMP-20S C101F
100400W

RMP-20S C100F
10100

RMP-20S C500F
RMP-20S C220F

35W

1010n

1100n

1u

10u

100u 1m 10m 100m
Pulse width (seconds)

110100

100k

1M

10M

100M

1G
Frequency (Hz)

Note:
(1)
(2)
(3)
(4)
(5)
(6)
(7)

Insulating material is unnecessary between flange and heat-sink, flange and resistor is separated by alumina substrate.
Resistance measurement shall be made at a point 5.27mm +/-0.6 mm from the resistor body.
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
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 break point
When mounting resistor on heat-sink by screw, clip and pressure strip with using heat conduction grease on back side of resistor arerecommended. Recommended screw torque is 0.5-0.6Nm.
0.1% tolerance resistors is available, please see datasheet of RNP-20P.
Standard packaging is RoHS PS/PE tube packaging, which contains 50pcs / tube.

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

RoHS

POWER - NIKKOHM
SMD 35W HIGH POWER RESISTORS

RMP-20S

16.00
5.00

4.00

16.00

Applications, RMP-20S

5.08
2.54
2.54
14.00

Heat conduction
metal back-plate.

withHeat conduction with
via hole to backconductor.

Heat conduction withsurface conductor.

W.

S0.

B0

Tape Reel, RMP-20S (500pcs/reel)
A0
B0
K0
P1
S0W

10.56+/-0.1
20.72+/-0.1
6.10+/-0.1
16.00+/-0.1
28.40+/-0.1
32.00+/-0.3

2.0d min.
K0

4.0+/-0.1

P1

A01.5d+0.1-0.0

330mm

20210101
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