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| Temperature Measurement Probe Assemblies Applications I Refrigerators I Deep freezers B57020 M 2020 8 4,5 Features I I I I Thermistor in molded plastic case PVC-insulated connecting cable (white), T max = 105 C Conductor cross section: 2 x 0,34 mm2 Construction based on DIN EN 60 730-1/VDE protection class 2 30 Options Alternative resistance ratings, rated temperatures, resistance tolerance and cable lengths available on request Delivery mode Bulk Dimensions in mm TNT0350-Q Climatic category (IEC 60068-1) Max. power at 25 C Resistance tolerance Rated temperature B value tolerance Dissipation factor (in air) Thermal time constant (in water) Insulation resistance R 25 R0 No. of R/T characteristic 2003 P25 R N/R N TN B/B th a Ris B25/100 K 3980 40/80/56 350 2% 0 1,5 % approx. 10 approx. 35 > 1000 Ordering code mW C mW/K s M 5000 16330 B57020M2502A017 120 05/02 90030 Temperature Measurement Probe Assemblies Reliability data Test Storage in dry heat Standard IEC 60068-2-2 Test conditions Storage at upper category temperature T: 80 C t: 1000 h Storage at lower category temperature T: - 40 C t: 1000 h IEC 60068-2-3 Temperature of air: 40 C Relative humidity of air: 93 % Duration: 56 days Lower test temperature: - 40 C Upper test temperature: 80 C Time to change from lower to upper temperature: < 30 s; Number of cycles: 1000 Medium: air Temperature of water: 30 C t: 4000 h Applied voltage with drop resistor 10 k:10 Vdc switched between on (ton = 30 min) and off (toff = 30 min) Lower test temperature: - 30 C Upper test temperature: 10 C Test frequency < 15 min under wetness and frozen water Number of cycles: 50000 Medium: air 3750 V; 1 min The sensors are placed in a vessel containing metallic balls of 1 mm diameter (with total immersed head). The applied voltage is 500 Vdc. B57020 M 2020 R25/R 25 Remarks (typical) <2% No visible damage Storage in coldness <2% No visible damage Storage in damp heat, steady state <2% No visible damage No visible damage Rapid temperature IEC cycling 60068-2-14 <2% Storage in water <2% No visible damage Temperature cycling test <2% No visible damage Voltage proof test Insulation test No flashover Above 1000 M 121 05/02 Herausgegeben von EPCOS AG Unternehmenskommunikation, Postfach 80 17 09, 81617 Munchen, DEUTSCHLAND ++49 89 636 09, FAX (0 89) 636-2 26 89 ( EPCOS AG 2002. Vervielfaltigung, Veroffentlichung, Verbreitung und Verwertung dieser Broschure und ihres Inhalts ohne ausdruckliche Genehmigung der EPCOS AG nicht gestattet. Bestellungen unterliegen den vom ZVEI empfohlenen Allgemeinen Lieferbedingungen fur Erzeugnisse und Leistungen der Elektroindustrie, soweit nichts anderes vereinbart wird. Diese Broschure ersetzt die vorige Ausgabe. Fragen uber Technik, Preise und Liefermoglichkeiten richten Sie bitte an den Ihnen nachstgelegenen Vertrieb der EPCOS AG oder an unsere Vertriebsgesellschaften im Ausland. Bauelemente konnen aufgrund technischer Erfordernisse Gefahrstoffe enthalten. Auskunfte daruber bitten wir unter Angabe des betreffenden Typs ebenfalls uber die zustandige Vertriebsgesellschaft einzuholen. Published by EPCOS AG Corporate Communications, P.O. Box 80 17 09, 81617 Munich, GERMANY ++49 89 636 09, FAX (0 89) 636-2 26 89 EPCOS AG 2002. Reproduction, publication and dissemination of this brochure and the information contained therein without EPCOS' prior express consent is prohibited. Purchase orders are subject to the General Conditions for the Supply of Products and Services of the Electrical and Electronics Industry recommended by the ZVEI (German Electrical and Electronic Manufacturers' Association), unless otherwise agreed. This brochure replaces the previous edition. For questions on technology, prices and delivery please contact the Sales Offices of EPCOS AG or the international Representatives. Due to technical requirements components may contain dangerous substances. For information on the type in question please also contact one of our Sales Offices. ( |
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