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[1页]

0.159–0.190"

(4.06–4.82mm)

0.500–0.579"

(12.70–14.70mm)

OHMITE’S TCH35 TO220 PACK-

AGE RESISTOR PROVIDES 35W

OF STEADY STATE POWER WHEN

PROPERLY USED IN TODAY’S WELL

DEFINED HEAT SINK APPLICATIONS.

THESE VERY LOW INDUCTION

RESISTORS ARE BUILT UNDER PRO -

PRIETARY PROCESSES THAT DELIVER

MORE POWER HANDLING CAPABIL -

ITY THAN OTHER TO220 PACKAGE

RESISTORS OF SIMILAR SIZE.

STANDARD TERMINAL FORMS ARE

PROVIDED FOR MANUAL OR AUTO -

MATIC INSERTION.

A SINGLE SCREW MOUNTING TAB

CONNECTS TO THE HEAT SINK AND

SHOULD BE ACCOMPANIED BY THE

USE OF A THERMAL COMPOUND.

THE TCH35 SERIES OFFERS A LOW

THERMAL RESISTANCE TO THE HEAT

SINK OF <4.28°C/W.

FEATURES

? 35W POWER RATING @ 25°C

? VERY LOW INDUCTANCE DESIGN

? SINGLE SCREW MOUNTING

? LOW THERMAL RESISTANCE TO HEAT

SINK @ R TH <4.28°C/W

SPECIFICATIONS

Electrical

Resistance Range: 0.1 Ω TO 10K Ω

(HIGHER VALUES ON REQUEST SUBJECT

TO DERATING)

Resistance Tolerance:

± 5% STANDARD

± 1% AVAILABLE ON REQUEST

Temperature Coefficient:

REFERENCED TO 25°C,

? R TAKEN AT +105°C

10 Ω AND ABOVE: ±50 PPM°C

FOR UNDER 10 Ω :

0R6 - 9R9 ....... 100PPM

0R4 - 0R59 ..... 150PPM

0R2 - 0R39 ..... 250PPM

0R1 - 0R19 ..... 500PPM

0R05 - 0R09 ... 1000PPM

Max. Operating Voltage: 350V

Dielectric Strength: 1800 VAC

Insulation Resistance: 10G Ω

MIN.

Momentary Overload: 2X RATED

POWER FOR 5 SECONDS AS LONG AS

THE APPLIED VOLTAGE ≤ 1.5 TIMES

THE CONTINUOUS OPERATING VOLTAGE,

WHERE ? R ±(0.3% + 0.01 Ω ) MAX

Terminal Material: COPPER

TCH Series

35 Watt TO220 Package

Thick Film Power

0.390–0.410" 0.047–0.055"

(9.91–10.41mm) (1.20–1.40mm)

0.112–0.120"

(2.85–3.05mm)

0.230–0.250"

(5.85–6.35mm) 0.571–0.591"

(14.50–15.00mm)

0.046–0.054" 0.157" max.

(1.17–1.37mm) (5.00mm)

0.027–0.034" 0.022–0.028"

(0.70–0.86mm) (0.55–0.70mm)

0.080–0.089"

(2.05–2.25mm)

0.190–0.210"

(4.83–5.33mm)

APPLICATIONS

? RESISTANCE ELEMENT IS ELECTRICALLY Terminal Plating: LEAD FREE

INSULATED FROM METAL HEAT SINK SOLDER (97% TIN, 3% SILVER)

MOUNTING TAB Maximum Torque: 0.9 NM

Power Rating: 35 WATTS @ 25°C

CASE TEMPERATURE; SEE DERATING

? SWITCHING POWER SUPPLIES CURVE, BELOW

? SNUBBERS Working Temperature Range:

? HIGH FREQUENCY -55°C TO +175°C

? VOLTAGE REGULATION Solder Process: THE TCH35 CAN -

? LOW ENERGY PULSE LOADING NOT EXCEED 260°C FOR MORE THAN

10 SECONDS DURING SOLDERING

PROCESS.

D E R AT I N G C U R V E

TAH/TCH

T E S T D ATA

Load Life MIL-R-39009, 2000 Hours @ Rated Pwr ? R = ± (1.0% + 0.01) Ω

Thermal Shock MIL-R-STD-202, Method 107, Cond. F ? R = ± (0.3% + 0.01) Ω max

High Freq Vibration MIL-R-STD-202, Method 204, Cond. D ? R = ± (0.2% + 0.01) Ω max

Terminal Strength MIL-R-STD-202, Method 211, Cond. A ? R = ± (0.2% + 0.01) Ω max

(Pull Test) 2.4N

Moisture Resistance MIL-R-STD-202, Method 106 ? R = ± (0.5% + 0.01) Ω max

O R D E R I N G I N F O R M AT I O N

Tolerance

F = 1%

Package Code J = 5% STANDARD

TCH35P10R0JE

100

20/35

16/28

Series

Ohm Value

EXAMPLE:

2R40 = 2.4 OHMS

2K40 = 2400 OHMS

RoHS Compliant

NON-COMPLIANT

VERSION UNAVAILABLE

TCH

12/21

Check product availability at www.ohmite.com

TAH

8/14

S TA N D A R D PA RT N U M B E R S

0 25 50 75 100 125 150 175

Bottom of base plate Temperature, ° C

THIS PRODUCT IS DESIGNED FOR

USE WITH PROPER HEATSINKING.

4/ 7

TCH35P100RJE

TCH35P10K0JE

TCH35P10ROJE

TCH35P150RJE

TCH35P15R0JE

TCH35P1K00JE

TCH35P1K50JE

TCH35P1R00JE

TCH35P1R50JE

TCH35P200RJE

TCH35P20R0JE

TCH35P220RJE

TCH35P22R0JE

TCH35P240RJE

TCH35P24R0JE

TCH35P2K00JE

TCH35P2K20JE

TCH35P2K40JE

TCH35P2R00JE

TCH35P2R20JE

TCH35P2R40JE

TCH35P330RJE

TCH35P33R0JE

TCH35P390RJE

TCH35P39R0JE

TCH35P3K30JE

TCH35P3K90JE

TCH35P3R30JE

TCH35P3R90JE

TCH35P470RJE

TCH35P47R0JE

TCH35P4K70JE

TCH35P4R70JE

TCH35P510RJE

TCH35P51R0JE

TCH35P5K10JE

TCH35P5R10JE

TCH35P5R60JE

TCH35P750RJE

TCH35P75R0JE

TCH35P7K50JE

TCH35P7R50JE

TCH35PR100JE

TCH35PR150JE

TCH35PR200JE

TCH35PR220JE

TCH35PR240JE

TCH35PR330JE

TCH35PR390JE

TCH35PR470JE

TCH35PR510JE

TCH35PR560JE

TCH35PR750JE

TCH35PRO50JE

Maximum base plate temperature of the resistor must

be monitored and kept within specified limits to es-

tablish the power rating. Best technique is to attach a

thermocouple to the side of the base plate of the resis-

tor. Temperature of plastic housing or heat sink cannot

be used to establish rating of the resistor.

1-866-9-OHMITE ? INT’L 1-847-258-0300 ? FAX 1-847-574-7522 ? WWW.OHMITE.COM ? INFO@OHMITE.COM

Ohmite Mfg. Co.

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