TCH Series 35 Watt TO220 Package Thick Film Power Ohmite’s TCH35 TO220 package 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 proprietary processes that deliver more power handling capability than other TO220 package resistors of similar size. Standard terminal forms are provided for manual or automatic 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. F e at u r e s a p p l i c at i o n s • 35W Power Rating @ 25°C • Very Low Inductance Design • Single Screw Mounting • Low Thermal Resistance to Heat Sink @ RTH<4.28°C/W • Resistance Element is Electrically Insulated from Metal Heat Sink Mounting Tab • Switching Power Supplies • Snubbers • High Frequency • Voltage Regulation • Low Energy Pulse Loading characteristics Resistance Range 0.1Ω to 10KΩ (higher values on request subject to derating) Test Condition Resistance ± 5% standard; ± 1% available on request Tolerance: Temperature Referenced to 25°C, ∆R taken at +105°C Coefficient 10Ω and above: ±50 ppm°C For under 10Ω: 0R6 - 9R9: 100PPM 0R4 - 0R59: 150PPM 0R2 - 0R39: 250PPM 0R1 - 0R19: 500PPM 0R05 - 0R09: 1000PPM Dielectric Strength 1800 VAC Insulation 10GΩ min. Resistance Terminal Material Copper Terminal Plating Lead Free Solder (97% Tin, 3% Silver) Maximum Torque 0.9 Nm Power Rating 35 Watts @ 25°C case temperature; see derating curve, below ±(0.3% +0.01) Ω max High Freq MIL-R-STD-202, Method Vibration 204, Cond. D ±(0.2% +0.01) Ω max Terminal MIL-R-STD-202, Method Strength 211, Cond. A (Pull Test) 2.4N ±(0.2% +0.01) Ω max ± (0.5% +0.01) Ω max Derating TAH/TCH 100 20/35 80 16/28 12/21 60 TCH 40 8/14 TAH Rated Power, Watts Momentary 2x rated power for 5 seconds as long as the Overload applied voltage ≤1.5 times the continuous operating voltage, where ∆R ±(0.3% + 0.01Ω) max ±(1.0% +0.01) Ω Thermal MIL-R-STD-202, Method Shock 107, Cond. F Moisture MIL-R-STD-202, Method Resistance 106 Percent Rated Power Max. Operating 350V Voltage Result ∆R Load Life MIL-R-39009, 2000 Hours @ Rated Pwr 4/ 7 20 0 0 0 25 Working -55°C to +175°C Temperature Range 50 75 100 125 Bottom of base plate Temperature, °C Solder Process The TCH35 cannot exceed 260°C for more than 10 seconds during soldering process 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] 150 175 (continued) 149 TCH Series 35 Watt TO220 Package Thick Film Power dimensions ø0.139–0.148" (3.55–3.75mm) (in./mm) 0.390–0.410" (9.91–10.41mm) 0.047–0.055" (1.20–1.40mm) 0.112–0.120" (2.85–3.05mm) 0.230–0.250" (5.85–6.35mm) 0.046–0.054" (1.17–1.37mm) 0.157" max. (5.00mm) 0.027–0.034" (0.70–0.86mm) 0.500–0.579" (12.70–14.70mm) 0.571–0.591" (14.50–15.00mm) 0.159–0.190" (4.06–4.82mm) 0.022–0.028" (0.55–0.70mm) 0.080–0.089" (2.05–2.25mm) 0.190–0.210" (4.83–5.33mm) o r d e r i n g i n f o r m at i o n Standard Part Numbers Package Code Tolerance F = 1% J = 5% Standard TCH35P10R0JE Series Ohm Value Example: 2R40 = 2.4 Ohms 2K40 = 2400 Ohms RoHS Compliant Non-compliant version unavailable 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 THIS PRODUCT IS DESIGNED FOR USE WITH PROPER HEATSINKING. Maximum base plate temperature of the resistor must be monitored and kept within specified 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. 150 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] TCH35P510RJE TCH35P51R0JE TCH35P5K10JE TCH35P5R10JE TCH35P5R60JE TCH35P750RJE TCH35P75R0JE TCH35P7K50JE TCH35P7R50JE TCH35PR100JE TCH35PR150JE TCH35PR200JE TCH35PR220JE TCH35PR240JE TCH35PR330JE TCH35PR390JE TCH35PR470JE TCH35PR510JE TCH35PR560JE TCH35PR750JE TCH35PRO50JE