POWER - NIKKOHM

RoHS

TO220 35W HIGH POWER RESISTORSRNP-20SFeatures and Applications
35W high power resistors in TO220 style mold package for through-hole and 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 withthin film metallization technology and rejection of plastic adhesive joint.
Wide 100 milliohm to 51kOhm resistance range, non-inductive impedance characteristic and heatconduction through the insulated metal flange aid circuit designers. 0.02Ohm to 0.091Ohm are optional.
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)
G

DP

B

N

F
EM

HJK
L
A

Structure and MaterialCA
B
CDEF
GHJKLMNP

RNP-20Smm+/-mm10.1+/-0.2
15.0+/-0.2
4.5+/-0.2
3.6+/-0.1
15.5+/-1.0
4.0+/-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
16.0 +/-0.50>>>

10R0 (*)|
R02-R09 (+E6)
R10-9R1(+E24)
10R-51K (+E24)

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
RNP-20S|
RNP-20SC|
H(250ppm) thickA(100ppm) thickC(50ppm) thin film

Resistance value (*) is available following modified E24, +E24.
1.0
1.1
1.2
1.3
1.5
1.6
1.8
3.6
3.9
4.0
4.3
4.7
5.0
5.1

>
>
>

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

2.0
5.6

2.2
6.2

2.4
6.8

Z03
|
Z03
Z05

>
＞

Note｜
Tube
Tray

2.5
7.5

2.7
8.0

3.0
8.2

Note*: When order, 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: https://www.nikkohm.co.jp & https://www.nikkohm.com / e-mail: info@nikkohm.co.jp

3.39.1RoHS

POWER - NIKKOHM

RNP-20S

35W HIGH POWER RESISTORS
Specifications
TypeRating Power
Rating PowerHeat ResistanceResistance Range
Nominal ResistanceTCR(ppm/°C)
Tolerance

RNP-20S
35 W
1 Watt
3.3 °C/W
0.02-0.091 Ohm

10-51k Ohm

E6250(H)*5%(J)

0.1-9.1 Ohm
E24+100 (A)
1% (F), 5% (J)Thick Film

E2450 (C)+/-1% (F)Resistor Material

CapacitanceInductanceOperation Temp.
Max. Operating Volt.
Withstanding Volt.
Load Life
Humidity
Temp. Cycle
Soldering Heat
Solder ability
Insulation ResistanceVibration
WeightTCR (ppm/°C) at 0 to 100 °C
25080

200602040+175°C

10050100150Flange Temperature (°C)

200150Hot spot temperature ofresistor
referredtoflange temperature.

2000102030
Applied Power (W)Pulse Energy Durability
Pulse peak power (W)100k40100500500.01

0.1
Resistance (Ohms)

1.0

Frequency Characteristics
RNP-20S 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.

1k

Typical TCR in Low Ohms

1003010k

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 4Temperature Rise (°C)

+25°C

0-55

Equivalent parallel capacitance.
Equivalent series inductance

Temperature RiseRating Power (w)40Thin Film

1.44pF
8.38nH-55 °C to+175 °C
smaller value either 500V 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

50

Test Conditions-55 °C to 25 °C flange temperature
Free air.
Heat resistance between hot spot and 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.

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

RNP-20S C100F
10
RNP-20S C500F
RNP-20S C220F

35W

100
1010n

1100n

1u

10u

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

110100

100k

1M

10M

100M

1G
Frequency (Hz)Note:(1) Insulating 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.
(4) Test method is IEC60068-2-6, and specification is sine sweep wave form, 100Hz-2000Hz, 10 cycles, amplitude 0.75mm or 100m/s2, 90minutes. direction
x-y z, Amplitude 0.75mm will be applied under break point Frequency (about 60Hz) and 100m/ s2 over break point(5) When mounting resistor on heat-sink by screw, clip and pressure strip with using heat conduction grease on back side of resistor are recommended.
Recommended screw torque is 0.5-0.6Nm.
(6) 0.1% tolerance resistors is available, please see datasheet of RNP-20P.
(7) Standard packaging is RoHS PS/PE tube packaging, which contains 50pcs / tube.

20220901

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: https://www.nikkohm.co.jp & https://www.nikkohm.com / e-mail: info@nikkohm.co.jp