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B57621C0683 Datasheet(PDF) 2 Page - EPCOS |
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B57621C0683 Datasheet(HTML) 2 Page - EPCOS |
2 / 3 page 61 05/02 +: J for ∆R N/RN = ± 5 % Kfor ∆RN/RN = ± 10 % Mfor ∆R N/RN = ± 20 % R25 Ω No. of R/T characteristic B25/50 K B25/85 K B25/100 K Ordering code 100 k 4901 3870 3930 3950 B57621C0104+062 150 k 2903 4120 4190 4200 B57621C0154+162 220 k 2903 4120 4190 4200 B57621C0224+062 330 k 1014 4090 4210 4250 B57621C0334+062 470 k 1014 4090 4210 4250 B57621C0474+062 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 Standard Test conditions ∆R 25/R25 (typical) Remarks Storage in dry heat IEC 60068-2-2 JIS C 0021 Storage at upper category temperature T: (125 ± 2) °C t: 1000 h < 3 % Storage in damp heat, steady state IEC 60068-2-3 JIS C 0022 Temperature of air: (40 ± 2) °C Relative humidity of air: (93 +2 /–3) % Duration: 21 days < 3 % No visible damage Rapid temperature cycling IEC 60068-2-14 JIS C 0025 Lower test temperature: – 55 °C Upper test temperature: 125 °C Number of cycles: 10 < 3 % Endurance Pmax: 300 mW T: (65 ± 2) °C t: 1000 h < 5 % 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 < 5 % B57621 Temperature Measurement C621 SMD NTC Thermistors with Silver Palladium Termination, Size 1206 |
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