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152

TNP10 Series

Thin Film TO-126 Resistor

Ohmite offers a high power heatsinkable TO-126 packaged

resistor. They can achieve 1W in free air and 10W when

attached to a proper heatsink. The non-inductive design is ideal

for high speed circuits. These models exhibit low noise, high

frequency operation and high density installation. Applications

include: Constant current sources, electronic load circuits, LSI

tests, measurement, audio PA systems and motor control.

Derating

Coonstruction

Temperature Rise

charac T eri ST ic S

S P ecificaT io NS

(continued)

Flange Temp. (°C)

8

4

2

0

-55°

0°

50°

25°

100° 155° 200°

10

6

*with 2.8K/W heatsink

Applied Power (W)

90

30

0

0

2.5

5

7.5

10

120

60

Leads (tin plated Cu)

Molding (epoxy UL94-VO)

Conductor (Cu)

Resistor (Ni-Cr or RuO)

Substrate (alumina)

Flange (Ni plated Cu)

Resistance Range Values listed below; others on request

Temp. Range -55°C to +155°C

Rated Temperature +25°C

Rated Power 10W (-55 to 25°C flange temperature),

1W free air

Item Performance

Condition

Dielectric

Withstanding

Voltage

2000VAC

60 sec., between termi-

nals and flange

Insulation

Resistance

Over 1000MΩ

Between terminals and

flange

Moisture

Resistance

±(1.0%+0.05Ω)

60°C, 90 to 95%RH, DC

0.1W, 1000 hrs.

Load Life ±(1.0%+0.05Ω)

25°C, 90min. ON, 30min.

OFF, 1000hrs

Soldering Heat ±(1.0%+0.05Ω)

350 ±5°C, 3 sec.

Solderability Over 95% of surface 230 ±5°C, 3 sec.

Vibration ±0.25%

IEC 60068-2-6

Resistance

TCR

Heat

Series

Wattage*

Range (Ω)

Tolerance

(ppm/°C) Resistance**

0.09-0.1

5% (J)

±250

TNP10S

10W

0.1-9.1

±1% (F), 5% (J)

±100

5.9°C/W

10-51K

±1% (F)

±50

* Flange temp. -55° - 25°C; 1W at free air **From hot spot to flange

THIS PRODUCT IS DESIGNED

FOR USE WITH PROPER

HEATSINKING.

Maximum base plate temperature of the resistor

must be monitored and kept within speci-

fied limits to establish the power rating. Best

technique is to attach a thermocouple to the side

of the base plate of the resistor. Temperature of

plastic housing or heat sink cannot be used to

establish rating of the resistor.