MHP TO-247 Series Power Resistor MHP TO-247 Series • TO-247 housing • Low inductance (<50nH) • Available in 100W or 140W • High stability film resistance elements • RoHS compliant terminations • Insulated metal back plate • Approved to DSCC drawing 07019 IRC’s MHP series resistors satisfy demanding applications for accurate and stable power resistors housed in the convenient TO-247 case. The resistance element is isolated from the mounting tab by an alumina ceramic layer, providing very low thermal resistance and ensuring high insulation resistance between terminals and metal back plate. The non-inductive design makes these products especially useful in high frequency and high speed pulse applications. Electrical Data Power Rating1 Type Heatsink2 Free Air3 MHP100LF MHP140LF 100W 3W 140W 3W Voltage Rating4 Thermal Resistance 700V 1.3°C/W 700 V 0.9°C/W Resistance Range Tolerances Nominal Resistance Typ. Temperature Coefficient5 Min Max 0.01Ω 0.09Ω ±5% E6 ±250 ppm/°C 0.1Ω 9.1Ω ±1%, ±5% E12 ±100 ppm/°C 10Ω 51KΩ ±1%, ±5% E24 ±50 ppm/°C 0.01Ω 0.09Ω ±5% E6 ±250 ppm/°C 0.1Ω 9.1Ω ±1%, ±5% E12 ±100 ppm/°C 10Ω 51KΩ ±1%, ±5% E24 ±50 ppm/°C Maximum current 25 amps 2 Power rating based on 25°C case temperature 3 Power rating based on 25°C ambient temperature 4 Maximum voltage 700V or √ P x R 5 See TCR Chart for resistance values below 1ohm 1 Frequency Characteristics Pulse Energy Durability MHP100/140LF R200 J to MHP100/140LF 100R F Damage Level 10K 1K Impedance (ohms) Pulse Peak (Watts) 100K 1K 100 MHP100/140LF 1K0 F MHP100/140LF 100R F 10 MHP100/140LF 10R0 F Safety Zone 100 100n 1 1µ 10µ 100µ 1m 10m Pulse Width (seconds) 10K 100K 1M 10M 100M 1G Frequency(Hz) General Note IRC reserves the right to make changes in product specification without notice or liability. All information is subject to IRC’s own data and is considered accurate at time of going to print. Advanced Film Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com A subsidiary of TT electronics plc MHP TO-247 Series Issue May 2009 MHP TO-247 Series Power Resistor Physical Data CL Note: Metal tab is electrically isolated. CL F CL B ØD E K G Dim In (nom) mm A 0.630 16.0 ±0.2 B 0.787 20.0 ±0.5 C 0.189 4.8 ±0.2 ØD 0.126 3.2 ±0.1 E 0.571 14.5 ±0.5 F 0.201 5.1 ±0.5 G 0.143 3.63 ±0.2 H 0.032 0.8 ±0.05 J 0.032 0.8 ±0.05 K 0.429 10.9 ±0.1 J H A C Lead Material Tin Plated Copper Tab Material Nickel Plated Copper Environmental Data Test Method Specification - Performance MIL-STD-202 Method 107 Condition F ±0.30% + 50mΩ MIL-STD-202 Method 106 ±1.0% + 50mΩ Vibration MIL-STD-202 Method 204 Condition D ±0.25% + 50mΩ Load Life MIL-STD-202 Method 108 1,000 Hours ±1.0% + 50mΩ Resistance to Solder Heat MIL-STD-202 Method 210 Condition B ±0.25% + 50mΩ Dielectric Withstanding Voltage MIL-STD-202 Method 301 2200 volts DC or 2500 volts AC; 60 seconds Insulation Resistance (between terminal and tab) MIL-STD-202 Method 302 >1000MW> 230 ± 5°C, 3sec. >75% coverage Thermal Shock Moisture Resistance Solderability Operating Temperature Range -55°C to +155°C * During soldering, the soldering temperature profile must not cause the metal tab of this device to exceed 220°C. Advanced Film Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com MHP TO-247 Series Issue May 2009 MHP TO-247 Series Power Resistor Power Derating Data Temperature Rise Data 140 50 MHP100 100 MHP140 80 60 40 20 0 0 10 25° TCR (ppm/°C) 0 to 100°C Resistor Film Temp Rise with Respect to Flange Temp 120 ∆Tfilm (°C) % of Rated Power 100 Flange Temperature (°C) 155° 20 40 60 80 Power (Watts) 100 120 140 Typical TCR For Low Values Application Notes: 250 1. Insulating material is unnecessary between the heat sink and the tab, as the resistor film is isolated by the internal alumina substrate. 200 2. When mounting with a fastener, thermal grease is recommended. 150 3. Thermal design should satisfy the following equation: Case Temperature (Tc) + [Thermal Resistance (ROJC) x Power applied (Watts)] ≤ 155°C over the full operating temperature of the application. 100 50 0 0.01 0.1 Resistance (Ohms) 1.0 Ordering Data Prefix 4. Resistor film temperature is not to exceed 155°C during operation. 5. This product is RoHS compliant by exemption according to RoHS directive 2002/95/EC exemptions 5 & 7, as they apply to lead in glass and internal solder connections. TFP - MHP100LF - 1R50 - J Style MHP100LF = 100W, TO-247 style power resistor 07019 = DSCC drawing (07019) ver. of above MHP140LF = 140W, TO-247 style power resistor Resistance Code 4-digit resistance code. Ex: 10R0 = 10Ω, 1K00 = 1KΩ Absolute Tolerance Code J = ±5%; F = ±1% Standard Packaging RoHS compliant PE tray (50 pcs per tray) For additional information or to discuss your specific requirements, please contact our Applications Team using the contact details below. Advanced Film Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com MHP TO-247 Series Issue May 2009