Data Sheet for Precision ResistorsPower Resistor (thin film) Power rating up to 50 Watt (with heat-sink) Resistance range from 0,01Q..51kQ Resistance tolerance ±1% TCR up to ±50ppm/°C TO-220 housing Low inductance (<10nH) M220-3 M220-5 Resistance range Resistance tolerance Power rating @ 25°C (0W @ +175°C) Max. working voltage TCR-rate Working temperature range (max.' 20 W with heat-sink 1 W without heat-sink 0,0in..5ikn ±1%..±5% 35 W with heat-sink 1 W without heat-sink 500V or VP+*R ±50ppm/°C @ R > 10Q ±100ppm/°C @ 0,1Q < R <10Q ±250ppm/°C @ R < 0,1Q -55.. + 175°C 50 W with heat-sink 1 W without heat-sink Mechanical Specification Thin film Epoxy moulded TO-220 Radial cooper tinned Resistance technology / material Housing material Design Connections MEGATRON Elektronik GmbH & Co. KG ■ Hermann-Oberth-Strasse 7 ■ 85640 Putzbrunn / Munich Tel.: +49 89 46094-0 ■ Fax: +49 89 46094-201 ■ www.megatron.de ■ [email protected] Specifications are subject to change with
Open the catalog to page 1Data Sheet for Precision Resistors Series M220 Power Resistor (thin film) Power (in % of the Nominal Value) Power Derating Curve Temperature of the Back Plate °C Technical Drawing Power Rating Notes: The M220 series resistors have to be combined with a correctly dimensioned heat-sink. The internal temperature of the resistor should not exceed 175°C. Formula for the calculation of an appropriate heat-sink: Mounting Notes: The resistor must be attached to a suitable heat-sink. Mount resistor using thermal grease to a clean, flat surface. Use a compression washer to provide 665 to 1330N of mounting...
Open the catalog to page 2Data Sheet for Precision Resistors Series M220 Power Resistor (thin film) Pulse Energy Durability Pulse Energy Durability Pulse Energy Durability Pulse Peak Power (W) Pulse Peak Power (W) Tentative continuous-pulse power allowance at duty 0.01. Load life test will be necessary in actual equipment, Because curve will be changed by resistance, repetition, duty and operating temperature. Dotted shows estimation. Tentative continuous-pulse power allowance at duty 0.01. Load life test will be necessary in actual equipment, Because curve will be changed by resistance, repetition, duty and operating...
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