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TNP20P PRECISION
POWER
RESISTOR
TO220

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INTRODUCTION
These are TO220 super precision power resistors.  This model has proportional temperatures vs. small changes
in resistance at temperatures between -55C to 120C.  This is achieved with usage of thin film and the absence
of bulk metal resistive materials.  Within the range DC to 100MHz these models are non-capacitive and non-inductive.
Applications for these models include:  programmable precision power supplies and current supplies.  Programmable
high frequency power supplies.  Programmable low distortion AC power supplies, testing and inspection equipment
for power semiconductors and other inverters, UPS, motor control, electronic loads, high frequency amplifiers, 50R
terminations, HF adjustment resistors and Wilkinson amplifiers.

GENERAL SPECIFICATIONS
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Item

Specification Performance

Resistance Range

0.1-0.99R

1-5R

5-51KR

TCR[ppm/C]

+-25(E)

+-5(Z), +-10(N), +-25(E)

+-5(Z), +-10(N), +-25(E)

Tolerance[%]

1(F), 2(G), 5(J)

+-0.5(D), +-1(F)

See Note 1

Nominal Resistance

E24 or any value

Temp. Range

-55C to +155C

Rated Temperature

+25C

Rated Power

10W (-55 to 25C flange temperature)

Derated Rated Power

5W (-55 to 25C flange temperature), 0.5W free air

Heat Resistance

6.0 C/W

Max Applied Voltage

500V or Root(PR)

Inductance

10nH At stand-off

Capacitance

1pF At stand-off

Notes:
1/  +-.05(A), +-0.1(B), +-0.25(c), +-0.5(D)

Item

Performance Condition
Withstanding Voltage DC2000V 60 Sec.
Insulation Resistance Over 1000MR Between Terminals and Flange
Short Time Overload +-(0.25%+0.05R) Rated P X 2.5 sec. w/heatsink
Temp. Cycle +-(0.25%+0.05R) -55C 30min., 120C 30min. 5 cycles
Humidity +-(1.0%+0.05R) 60C, 90min. ON, 30min. OFF, 1000hrs
Load Life +-(1.0%+0.05R) 25C, 90min. ON, 30min. OFF, 1000hrs
Soldering Heat +-(0.1%+0.05R) 350 +-5C, 3 sec.
Solderability Over 3/4 of surface 230 +-5C, 3 sec.
Vibration +-(0.25%+0.05R) JISC5202
Terminal Strength +-(0.25%+0.05R) Tension 4.9N, 1-5 sec. Bend2.45N, 90 degree, 2 times

DIMENSIONS

A 10.0+-0.2
B 15.0
+-0.2
C 4.5
+-0.2
D 1.5
+-0.1
E 2.45
+-0.2
F 5.08
+-0.5
G 0.75
H 0.50
J 1.5
K 19.0
L 2.7
+-0.5
M 3.6 diam.
N 15.0 min.
P 16.0
+-0.5
Q 11.0 min.

CONSTRUCTION DIAGRAM

TEMPERATURE RISE AND DERATING CURVES


ORDERING PROCEDURE EXAMPLE

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Tel:82-32-817-4325 Fax:82-32-817-4329

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