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| Temperature Measurement SMD NTC Thermistors with Nickel Barrier Termination, Size 0402 SMD NTC thermistors with nickel barrier termination Applications I Temperature measurement and compensation in B572** V 2** 0,6 max. 0,50,05 Features I Multilayer SMD NTC with inner electrodes I Ni barrier termination (Ag/Ni/Sn) I High accuracy: 5 % in resistance, Termination 0,250,15 - mobile phone applications (e.g. battery pack, TCXO, LCD) - data systems - automotive electronics 1,00,1 TNT0395-Q B value tolerance down to 1,5 % available on request I Excellent long-term ageing stability in high-temperature and high-humidity environment I Superior resistance stability during soldering (change < 1 %) Options Dimensions in mm Approx. weight 4,5 mg Alternative resistance ratings, resistance tol. < 5 % and B value tol. < 3 % available on request Delivery mode Cardboard tape, 180-mm reel, PU: 10000 pcs Climatic category (IEC 60068-1) Max. power at 25 C (on PCB) Resistance tolerance Rated temperature B value tolerance Dissipation factor (on PCB) Thermal cooling time constant (on PCB) Heat capacity R 25 No. of R/T characteristic 8501 8501 8501 8501 8501 8502 8502 8502 8502 8502 8502 B 25/50 K 3470 3470 3470 3470 3470 3940 3940 3940 3940 3940 3940 P251) R N/R N TN B/B th1) c1) Cth1) B25/85 K 3540 3540 3540 3540 3540 3980 3980 3980 3980 3980 3980 55/125/56 150 5 %, 10 % 25 3% approx. 2,5 approx. 3,0 approx. 7,5 B 25/100 K 3550 3550 3550 3550 3550 4000 4000 4000 4000 4000 4000 B57211V2101+060 B57211V2151+060 B57211V2221+060 B57211V2331+060 B57211V2471+060 B57221V2102+060 B57221V2152+060 B57221V2222+060 B57221V2332+060 B57221V2472+060 B57221V2103+060 mW C mW/K s mJ/K Ordering code 100 150 220 330 470 1,0 k 1,5 k 2,2 k 3,3 k 4,7 k 10 k 1) Depends on mounting situation 48 05/02 Temperature Measurement SMD NTC Thermistors with Nickel Barrier Termination, Size 0402 B572** V 2** R 25 No. of R/T characteristic 8503 8503 8503 8503 8503 B 25/50 K 4390 4390 4390 4390 4390 B25/85 K 4470 4470 4470 4470 4470 B 25/100 K 4500 4500 4500 4500 4500 Ordering code 10 k 15 k 22 k 33 k 47 k B57231V2103+060 B57231V2153+060 B57231V2223+060 B57231V2333+060 B57231V2473+060 +: J for RN/RN = 5 % K for RN/RN = 10 % Reliability data SMD NTC thermistors are tested in accordance with IEC 60068. The parts are mounted on a standardized PCB in accordance with IEC 60539-1. Test Storage in dry heat Standard IEC 60068-2-2 JIS C 0021 IEC 60068-2-3 JIS C 0022 IEC 60068-2-14 JIS C 0025 Test conditions Storage at upper category temperature T: (125 2) C t: 1000 h Temperature of air: (40 2) C Relative humidity of air: (93 +2/-3) % Duration: 56 days R25/R 25 (typical) <2% Remarks Storage in damp heat, steady state <2% Rapid temperature cycling Endurance Lower test temperature: - 55 C < 2 % Upper test temperature: 125 C Number of cycles: 100 Pmax: 150 mW T: (65 2) C t: 1000 h <2% Solderability IEC 60068-2-58 JIS C 0054 Solderability: (215 3) C / (3 0,3) s (235 5) C / (2 0,2) s Resistance to soldering heat: (260 5) C / (10 1) s 95 % of terminations wetted Resistance drift after soldering Reflow soldering profile <1% 49 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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