Features Cost effective range with low resistance values at 25 C TEMPERATURE COMPENSATION 2322 642 6.... BASIC RANGE NTC THERMISTORS low resistance range TEMPERATURE SENSING AND CONTROL QUICK REFERENCE DATA Resistance value at + 25 9C BI5/85 value Maximum dissipation Dissipation factor Thermal time constant 3.3 2 ta 68 2 2675 to 3975 K 0.5 W 8.5 mW/K 17 s approx, Operating temperature range at zero power at maximum power 25 to+ 125C Oto+559C APPLICATION Temperature compensation and temperatur sensing. DESCRIPTION The thermistor has a negative temperature coefficient, it consists of a disc with two tinned copper wires, It is grey lacquered and colour coded, but not insulated, MECHANICAL DATA Outlines PACKAGING 35 + max Leite | TE I iA | 2 max no lacquer 22 +1 >| +06 7Z853311 Fig.1 Component outline. 500 thermistors in a cardboard box. They can be supplied on tape on request. March 1989 189 2322 642 6.... BASIC RANGE Marking The thermistors are marked with three or four colour bands in accordance with Fig. 1 and Table 1. Mass 0.25 g approximately. Mounting In any position by soldering. Robustness of terminations Tensile strength 10 N Bending 5N Soldering Solderability max. 240 C, max. 4s Resistance to heat max. 265 OC, max. 115 Impact Free fall im Flammability Not inflammable in accordance with IEC as described by TC50 (1979), needle flame. Resistance to solvents In accordance with IEC 68-2-45, resistant to R113 at Tamp- ELECTRICAL DATA Unless otherwise specified, measured in accordance with IEC publication 539. Resistance at 25 OC see Table 1 B25/g5 values see Table 1 Temperature coefficient see Table 1 Maximum dissipation * 0.5 W Dissipation factor * 8.5 mW/K approx. Thermal time constant * 17 s approx, Operating temperature range at zero power 25 to + 125 C at maximum power, see Fig. 2 Oto + 55 9C 7Z82875 P (W) 100% 7-- | | | | | | | | | 25 0 55 85 125 T (C) Fig. 2 Derating curve. * Measured in the measuring set described in the French norm NF C93-271, and clamped at 10 mm from the body. 190 March ros) ( NTC thermistors - low resistance range 2322 642 6... BASIC RANGE Table 1 Catalogue number 2322 642 6.... . Ro5 Ba5/85 temperatu re colour code suffix of coefficient (see Marking) OF catalogue number 5% * Q K %/K | it I! IV 338 3,3 2675 3,0 orange orange gold .478 47 2750 3,1 yellow violet gold .688 6,8 2800 3,2 blue grey gold .109 10 2875 3,2 brown black black .159 15 2950 3,3 brown green black .229 22 3025 3,4 red red black 339 33 3100 3,5 orange orange black .479 47 3150 3,5 yellow violet black .689 68 3225 -3,6 blue grey black * Replace dot in catalogue number (9th digit) by: 2 for a tolerance of 10% on Ras, band IV is silver. 3 for a tolerance of 5% on R45, band IV is gold. | (sre 1989 191