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M247
1 /3Pages
M247
1 /3Pages
Catalog excerpts
Data Sheet for Precision ResistorsPower Resistor (thin film) Power rating up to 140 Watt (with heat-sink) Resistance range from 0,02Q..51kQ Resistance tolerance up to ±1% TCR up to ±50ppm/°C TO-247 housing Low inductance (<50 nH) Resistance tolerance Power rating @ 25°C (0W @ +175°C) Max. working voltage TCR-rate Working temperature range (max.) ±1%..±5% 100 W with heat-sink 140 W with heat-sink 3 W without heat-sink 5 W without heat-sink Mechanical Specification Resistance technology / material Housing material Design Connections Thin film Epoxy moulded TO-247 Radial cooper tinned 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 without notice
Open the catalog to page 1
Data Sheet for Precision Resistors Series M247 Power Resistor (thin film) Power (in % of the Nominal Value) Power Derating Curve Temperature of the Back Plate °C Power Rating Notes: The M247 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 force. Torque...
Open the catalog to page 2
Power Resistor (thin film) Series M247 Order code Description Selection: standard=black/bold, possible options=grey/cursive Resistance tolerance: ±1% @R > 0,1 Q ±5% Temperature coefficient: ±50ppm/°C @ R > 10Q ±100ppm/°C @ 0,1Q < R <10Q ±250ppm/°C @ R < 0,1Q Resistance value - please choose: From 0,01Q to < 51kQ Power rating: Typ 2 @ 100W Typ 3 @ 140W Order Example 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 without notice
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