Vishay 2322 640 5... Data Sheet

查询23226405供应商 2322 640 5.... Vishay BCcomponents

NTC Thermistors, Accuracy Line

FEATURES Accurate over a wide temperature range (tolerance on B-value between 2.5% and 0.5%) Good stability over a long life Excellent price/performance ratio Flexible leads Low heat conductivity through 0.4 mm diameter Ni-leads

APPLICATIONS

QUICK REFERENCE DATA Temperature sensing and control. PARAMETER VALUE Resistance value at 25 2 to 470 k These thermistors have a negative temperature coefficient.

Tolerance on R -value 5%; 3%; 2%; 1% The device consists of a chip with two tinned nickel leads and

Tolerance on B 25/85 -value 2.5 to 0.5% is colour coded.

Maximum dissipation 100 m W

Dissipation factor 2.2 m W/K

PACKAGING

Response time; note 1 1.7 s Thermal time constant 13 s The thermistors are packed in cardboard boxes; the smallest

Operating temperature range at: packing quantity is 500 units. zero dissipation (continuously) 40 to +125 zero dissipation (for short

MARKING

maximum dissipation (100 m W) 0 to +55 Climatic category 40/125/56 The thermistors are marked with coloured bands; see

Mass 0.11 g Dimentions and “Electrical data and ordering information”

Notes 1. Response time in silicone oil MS200/50. This is the time needed

MOUNTING

for the sensor to reach 63.2% of the total temperature difference

when subjected to a temperature change from 25 C in air to By soldering in any position.

C in oil. 2. Valid for all types with the exception of 2322 640 5.474.

ELECTRICAL DATA AND ORDERING INFORMATION

CATALOG NUMBER 2322 640 5.... CODING (see dimensions)

25/85 -VALUE

5% 3% 2% 1% II

3528 K 0.5% orange orange 2.7 3977 K 0.75% red red 4.7 3977 K 0.75% green green 3977 K 0.75% black white 3977 K 0.75% blue blue

3740 K 2% yellow yellow 3740 K 2% white white 4090 K 1.5% black black 4190 K 1.5% grey grey 4190 K 1.5% brown brown 4570 K 1.5% violet violet

Notes 1. Extended range available on request. 2. Thermistors have a 12-digit catalog number starting with 2322 640 5; the next digit indicates the tolerance and the last 3 digits indicate the resistance value.

www.vishay.com For technical questions contact: [email protected] Document Number: 29048

Revision: 15-Jun-04