Dt h series 35 Watt DPAK Package Features Thick Film Power Surface Mount 35 Watt power rating at 25C SMD - DPAK package configu- Ohmites TDH resistor is an economi- ration cal solution to intermediate power Heat resistance to cooling application design requirements. plate: Rth <4.28C/W TDHs reliable thick film on alumina A molded case for environ- substrate construction can be easily mental protection. heat sinked for higher power perfor- Resistor element is electrically mance. TDH resistors are ideal for insulated from the metal sink pulse-loading, pre-charge, bleeder, tab. and snubber applications. characteristics Soldering note: During surface mount soldering the soldering Terminal Copper temperature profile must not cause the metal tab of this device to Terminal Plating Terminals- SnAg, exceed 220C (260C for the TDH35H) Thermal Header- German Silver/Nickel Silver Resistance Range 0.05 to 10K other values on request Test Condition Result Tolerance 1% to 10% (0.5% on request) MILR39009, 2,000 hours R (1.0% Load Life +0.01) Max. Operating Voltage 350V Moisture MILStd202, Method 106 R =(0.5% Insulation Resistance 10G min. Resistance +0.01) max. Depends upon case temperature. See der- Power Rating Short Time 2 times rated power with R (0.3% ating curve. Overload applied voltage not to exceed +0.01) max. DPAK style power package for surface 1.5 times maximum continu- mounting applications 35W power rating at ous operating voltage for 5 25C case temperature. seconds Working Temperature -55C to +175C MILStd202, Method 107, R =(0.3% Thermal Shock Range Cond. F +0.01) max. Solder Process The TDH35P cannot exceed 215C (260C Terminal MILStd202, Method 211, R =(0.2% for the TDH35H) for more than 10 seconds Strength Cond. A (Pull Test) 2.4N +0.01) max. during soldering process. Vibration, High MIL-Std-202, Method 204, R =(0.2% Derating 100% 25C to 0% 150C curve refer- Frequency +0.01) max. Cond. D enced to case temperature Dielectric Strength 1,800VAC Derating Operating Temperature -55C to +150C Range 100 35 Temperature Coefficient 10 and above, 50ppm/C, referenced to 80 28 25C, R taken at +105C. Between 1 and 10, (100ppm+0.002)/C, referenced to 60 21 25C, R taken at +105C. For under 10: 0R6 - 9R9: 100PPM 40 14 0R4 - 0R59: 150PPM 0R2 - 0R39: 250PPM 20 7 0R1 - 0R19: 500PPM 0R05 - 0R09: 1000PPM 0 0 0 2550 75 100 125 150 175 less than 20 nanohenries Inductance Bottom of base plate Temperature, C Flatness less than 0.1mm tolerance Derating (thermal resistance): 0.23W/C (4.28C/W). The case temperature is to be used for purposes of establishing the applied power limit. The case temperature measurement must be made with a thermocouple contacting the center of the component mounted on the designed heat sink. Thermal grease should be applied propperly. (continued) 38 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com Percent Rated Power Rated Power, WDt h series 35 Watt DPAK Package Thick Film Power Surface Mount Dimensions 10.1mm 4.5mm Tape Dimensions 7.87mm 45 1.1mm 0.5mm 750 pc./reel 0.5 0.5mm 4.95mm 16mm Land Pattern 8.51mm 8.6mm 24mm 1.5mm 2.63mm 0.5 1.4mm 4.8mm 1.5mm 3.81mm 0.9mm 0.5 0.6mm 1.65mm 5.08mm 2.54mm Tol. 0.2mm unless otherwise noted orDering inFormation Standard Part Numbers Part Number Part Number Ohms 5% Tolerance Ohms 5% Tolerance 0.10 TDH35PR100JE 25 TDH35P25R0JE 0.15 TDH35PR150JE 33 TDH35P33R0JE Tape and reel 0.20 TDH35PR200JE 39 TDH35P39R0JE (optional) 0.25 TDH35PR250JE 750 per reel 47 TDH35P47R0JE 0.30 TDH35PR300JE TDH35PR100JE-TR 68 TDH35P68R0JE 0.36 TDH35PR360JE 75 TDH35P75R0JE Style Package Ohms Tolerance RoHS Compliant 0.47 TDH35PR470JE 100 TDH35P100RJE Modifier R = Decimal F = 1% Non-compliant 0.50 TDH35PR500JE 150 TDH35P150RJE P = low temp. Example: J = 5% version unavailable 0.75 TDH35PR750JE H = high temp. R100 = 0.10 K = 10% 200 TDH35P200RJE 1.0 TDH35P1R00JE 1R00= 1.0 250 TDH35P250RJE 10K0= 10,000 2.0 TDH35P2R00JE 300 TDH35P300RJE 3.0 TDH35P3R00JE 500 TDH35P500RJE 5.0 TDH35P5R00JE 750 TDH35P750RJE 7.5 TDH35P7R50JE 1000 TDH35P1K00JE 10 TDH35P10R0JE 1500 TDH35P1K50JE 15 TDH35P15R0JE 2500 TDH35P2K50JE 20 TDH35P20R0JE 3000 TDH35P3K00JE 5000 TDH35P5K00JE 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 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 Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com 39