NTC thermistors for temperature measurement SMD NTC thermistors, case size 1206 (3216), standard series Series/Type: B57621C5 Date: December 2016 EPCOS AG 2016. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS prior express consent is prohibited. EPCOS AG is a TDK Group Company.Temperature measurement and compensation B57621C5 SMD NTC thermistors, case size 1206 (3216) Standard series Applications Dimensional drawing Temperature measurement and compensation Features SMD NTC with/ without inner electrodes Nickel barrier termination Excellent long-term aging stability in high temperature environment Options Alternative resistance ratings, resistance tolerances and B value tolerances available on request. Delivery mode Dimensions in mm Blister tape, 180-mm reel (standard) Approx. weight 18 mg General technical data Operating temperature range T 55 ... 125 C op 1) Max. power (at 25 C, on PCB) P 300 mW 25 Resistance tolerance R /R 5, 10 % R R Rated temperature T 25 C R 1) Dissipation factor (on PCB) approx. 5 mW/K th 1) Thermal cooling time constant (on PCB) approx. 10 s c 1) Heat capacity C approx. 50 mJ/K th Electrical specification and ordering codes R /R R No. of R/T B B B Ordering code R R 25 25/50 25/85 25/100 % characteristic K K K 1.0 k 5, 10 3206 3420 3440 3450 3% B57621C5102+062 4.7 k 5, 10 1309 3430 3500 3520 3% B57621C5472+062 10 k 5, 10 1010 3470 3510 3530 3% B57621C5103+062 15 k 5, 10 1008 3480 3550 3560 3% B57621C5153+062 + = Resistance tolerance J = 5% K = 10% 1) Depends on mounting situation Please read Cautions and warnings and Page 2 of 19 Important notes at the end of this document.