RARA ELECTRONICS COMPANY-IRV/IRH Specifications

TNP50S, TNP100S POWER
THIN FILM RESISTORS
TO247

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                              TNP50S                                                                   TNP100S

INTRODUCTION
This series of power film resistors offers a high power handling capability in a compact, non-inductive format.
Both the TNP50S and the TNP100S are TO247 models handling 100W and 140W respectively, depending on
the ohmic value. This entire range is constructed using high thermal conduction alloys resulting in excellent
heat transfer when mounted on heatsinks. Applications for these models include: Gate and snubber
resistors in power supplies, load and dumping resistors in CRT monitors, terminal resistance in RF amplifiers,
power equipment, RF circuits, UPS, motor control, automated machine controls and power supplies.

GENERAL SPECIFICATIONS

Model
Resistance
Range [ohms] TCR [ppm/C]
Tolerance [%]

Power Rating
[W]

TNP50S 0.01 - 0.09 +-250 5% 100 (3 in free air)

0.1 - 9.1 +-100 1%, 5%

10-220 +-50 1%

220-51K Please enquire Please enquire 50

TNP100S 0.01 - 0.09 +-250 5% 140 (3 in free air)

0.1-9.1 +-100 1%, 5%

10 - 219 +-50 1%

Notes:
1/ Maximum voltage is Root(PR)

CHARACTERISTICS                                                  Values in [ ] mean change in ohmic value after test

Test

Limit
Condition

Temperature range

-55 to+155C
40W   power 5seconds.

Max Applied Voltage
Root(PR) 　

Withstanding Voltage
2500V 60sec.

Load life

+-[1.0%+0.05ohm]

25C, 90min. ON, 30min.OFF, 1000hours.

Humidity

+-[1.0%+0.05ohm]

40C, 90-95%RH, DC0.1W, 1000hrs.

Temperature Cycle

+-[0.25%+0.05ohm]

-55C for 30min., +155C for 30min., 5 cycles

Soldering heat

+-[0.25%+0.05ohm]

350+-5C, 3 seconds.

Solderability

Over 75% of surface

230+-5C, 3 seconds.

Insulation Resistance

Over 100Mohms
Between Terminals and Tab

Vibration +-[0.25%+0.05ohm] 　

DIMENSIONS

TEMPERATURE RISE AND DERATING CURVES

(Note: RNP model numbers have been replaced with TNP)

CHARACTERISTIC CURVES

(Note: RNP model numbers have been replaced with TNP)

ORDERING PROCEDURE EXAMPLE

Model	Resistance Range [ohms]	TCR [ppm/C]	Tolerance [%]	Power Rating [W]
TNP50S	0.01 - 0.09	+-250	5%	100 (3 in free air)
	0.1 - 9.1	+-100	1%, 5%
	10-220	+-50	1%
	220-51K	Please enquire	Please enquire	50
TNP100S	0.01 - 0.09	+-250	5%	140 (3 in free air)
	0.1-9.1	+-100	1%, 5%
	10 - 219	+-50	1%

Test	Limit	Condition
Temperature range	-55 to+155C	40W power 5seconds.
Max Applied Voltage	Root(PR)
Withstanding Voltage	2500V	60sec.
Load life	+-[1.0%+0.05ohm]	25C, 90min. ON, 30min.OFF, 1000hours.
Humidity	+-[1.0%+0.05ohm]	40C, 90-95%RH, DC0.1W, 1000hrs.
Temperature Cycle	+-[0.25%+0.05ohm]	-55C for 30min., +155C for 30min., 5 cycles
Soldering heat	+-[0.25%+0.05ohm]	350+-5C, 3 seconds.
Solderability	Over 75% of surface	230+-5C, 3 seconds.
Insulation Resistance	Over 100Mohms	Between Terminals and Tab
Vibration	+-[0.25%+0.05ohm]