NTC Diode Thermometrics Thermistors A range of NTC chip thermistors in DO-35 style Available on axial bandolier to IEC-286-1/ glass package (diode outline) with axial solder- EIA-468A and packet taped to EIA RS-481 coated copper-clad steel wires. for MELF. Designed for accurate temperature Also available loose-packed with axial, radial measurement, control and compensation and SMD wire forms Tight tolerances on resistance and B value Suitable for automotive, telecom (battery packs), HVAC and white goods applications Operation up to 482F (250C) with excellent stability Temperature sensing for household appliances such as rice cookers, electronic Glass body provides hermetic seal and ranges, ovens, etc. voltage insulation and excellent stability Temperature sensing for industrial products such as pharmaceuticals, chemicals, food, Designed for cost effective solid state sensor etc.components. Lead-wires metallurgically bonded to thermistor element for improved reliability (Type GE only) Resistant to corrosive atmospheres and harsh environments Amphenol Advanced SensorsType DK 0.02 in (0.5 mm) 0.08 in (2 mm) nominal maximum DK-N Specifications Chip thermistor in DO-35 glass package 1.06 in (27 mm) 0.2 in (4.2 mm) minimum maximum Options DK-H Other resistance values within the ranges 0.08 in (2 0.16 in (4 mm) shown e.g. code DKA302*2 for 3000 mm) maximum 0.1 in (2.8 mm) Inside radius 0.02 in (0.5 mm) nominal 2% at 77F (25C) nominal 0.05 in (1.2 mm) Reference temperatures in the range 0F nominal to 302F (-18C to 150C) Operation to 572F (300C) (no solder 0.8 in (19.5 mm) 1 coating on wires) Wire lengths 0.16 in to 1.26 in (4 mm to NTC Type DK wires should not be bent within 0.08 in (2 mm) of glass body 32 mm) 0.04 in (1 mm) for DK-N up to 1.02 in (26 mm) for DK-H Data Operating temperature: -40F to 482F (-40C to 250C) Coding Thermal time constant: 7 seconds (cooling in air) Replace * in the codes shown below as follows: Dissipation factor: 3.0 mW/K Axial, loose-packed: N Mass: 0.2 g Axial, bandoliered: B Packing/MOQ: 1000/box (loose), 5000/reel (bandoliered) Radial, loose-packed: H Surface mount, loose-packed: M R25 Material B 25/85 K Code Code Code Code system R25 2% R25 3% R25 5% R25 10% 2000 2 3540 1% DKA202*2 DKA202*3 DKA202*5 DKA202*10 5000 2 3540 1% DKA502*2 DKA502*3 DKA502*5 DKA502*10 10,000 2 3540 1% DKA103*2 DKA103*3 DKA103*5 DKA103*10 10,000 5A 3730 2% DKC103*3 DKC103*5 DKC103*10 12,000 5A 3730 2% DKC123*2 DKC123*3 DKC123*5 DKC123*10 10,000 3 3960 1% DKF103*2 DKF103*3 DKF103*5 DKF103*10 20,000 3 3960 1% DKF203*2 DKF203*3 DKF203*5 DKF203*10 30,000 3 3960 1% DKF303*2 DKF303*3 DKF303*5 DKF303*10 50,000 3 3960 1% DKF503*2 DKF503*3 DKF503*5 DKF503*10 100,000 3 3960 1% DKF104*2 DKF104*3 DKF104*5 DKF104*10 200,000 G 4263 2% DKG204*5 DKG204*10 500,000 D 4573 2% DKD504*5 DKD504*10 1,000,000 D 4573 2% DKD105*5 DKD105*10 See separate tables for resistance-temperature data.. Consult factory for additional tolerance requirements. 2