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| Temperature Measurement SMD NTC Thermistors with Nickel Barrier Termination, Size 0805 Applications I Temperature measurement and compensation in B574** V 4** 1,250,15 1,3 max.*) 2,00,2 - mobile phone applications (e.g. battery pack, TCXO, LCD) - data systems - automotive electronics Features I Multilayer SMD NTC with inner electrodes I Ni barrier termination (AgNiSn) I High accuracy: 5 % in resistance, Termination 0,50,25 TNT0421-1-E 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 * Slimline version 0,9 max. * available upon request Dimensions in mm Approx. weight 13 mg Alternative resistance ratings, resistance tol. < 5 % and B value tol. < 3 % available on request Delivery mode Blister tape, 180-mm reel, PU: 3000 pcs (standard); 330-mm reel, PU: 12000 pcs (on request) 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 B 25/50 K 3470 3470 3470 3470 3470 P251) R N/R N TN B/B th1) c1) Cth1) B25/85 K 3540 3540 3540 3540 3540 55/125/56 210 5 %, 10 % 25 3% approx. 3,5 approx. 10,0 approx. 35,0 B 25/100 K 3550 3550 3550 3550 3550 B57411V2470+062 B57411V2101+062 B57411V2151+062 B57411V2221+062 B57411V2331+062 mW C mW/K s mJ/K Ordering code 47 100 150 220 330 1) Depends on mounting situation 53 05/02 Temperature Measurement SMD NTC Thermistors with Nickel Barrier Termination, Size 0805 B574** V 4** R 25 No. of R/T characteristic 8502 8502 8502 8502 8502 8503 8503 8503 8503 8503 8503 8503 8503 8503 8503 8503 B 25/50 K 3940 3940 3940 3940 3940 4390 4390 4390 4390 4390 4390 4390 4390 4390 4390 4390 B25/85 K 3980 3980 3980 3980 3980 4470 4470 4470 4470 4470 4470 4470 4470 4470 4470 4470 B 25/100 K 4000 4000 4000 4000 4000 4500 4500 4500 4500 4500 4500 4500 4500 4500 4500 4500 Ordering code 470 680 1,0 k 1,5 k 10 k 2,2 k 3,3 k 4,7 k 6,8 k 10 k 15 k 22 k 33 k 47 k 68 k 100 k B57421V2471+062 B57421V2681+062 B57421V2102+062 B57421V2152+062 B57421V2103+062 B57431V2222+062 B57431V2332+062 B57431V2472+062 B57431V2682+062 B57431V2103+062 B57431V2153+062 B57431V2223+062 B57431V2333+062 B57431V2473+062 B57431V2683+062 B57431V2104+062 +: J for RN/RN = 5 % K for RN/RN = 10 % 54 05/02 Temperature Measurement SMD NTC Thermistors with Nickel Barrier Termination, Size 0805 Reliability data B574** V 4** 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: 210 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 Wave soldering profile <1% 55 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. ( |
Price & Availability of B57411
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