B57999V2999J199

EPCOS Sample Kit 2016 SMD NTC Thermistors Temperature Measurement and Compensation for General-Use www.epcos.com Temperature measurement and compensation NTC (negative temperature coefficient) thermistors are thermally sensitive semiconductor resistors which show a decrease in resistance as temperature increases. At –2%/K to –6%/K, the negative temperature coefficients of resistance are about ten times greater than those of metals and about five times greater than those of silicon temperature sensors. NTC thermistors are simple yet very sensitive and accurate sensing elements for measuring and control circuits. Features       Superior performance in high-stability applications Accurate temperature sensing up to +125 °C Excellent long-term aging stability in high temperature environment Short response time All SMD NTC thermistors are listed under UL (file number E69802) Alternative ratings available on request, e.g. resistance and B value Applications            Displays Smartphones and wearable devices Heating and air-conditioning, radiator cooling fan control units, thermostats Household electronics, e.g. refrigerators, washing machines, water boilers Battery management systems Healthcare Smart metering Electronic control unit Industrial automation Security and safety Lighting, e.g. LED lighting modules, LED retrofit bulbs and tubes A short presentation with more details and applications examples can be found under: www.epcos.com/smdntc_gu Important information: Some parts of this publication contain statements about the suitability of our products for certain areas of application. These statements are based on our knowledge of typical requirements that are often placed on our products. We expressly point out that these statements cannot be regarded as binding statements about the suitability of our products for a particular customer application. It is incumbent on the customer to check and decide whether a product is suitable for use in a particular application. This publication is only a brief product survey which may be changed from time to time. Our products are described in detail in our data sheets. The Important notes (www.epcos.com / ImportantNotes) and the product-specific Cautions and warnings must be observed. All relevant information is available through our sales offices. Components B57230 V2103F260 B57221 V2103J060 B57261 V2223J060 B57330 V2103F260 B57321 V2103J060 B57371 V2223J060 B57371 V2473J060 B57421 V2102J062 B57401 V2103J062 B57421 V2103J062 B57471 V2103J062 B57221 V2473J060 B57250 V2473F560 B57250 V2104F360 B57357 V2473F560 B57374 V2104J060 B57350 V2104F460 B57371 V2474J060 B57471 V2223J062 B57471 V2473J062 B57471 V2104J062 B57471 V2474J062 Product range Electrical specifications and ordering codes R25 DRR/RR B25/50 B25/85 B25/100 Ordering code [kV] % [K] [K] [K] 3380 3940 4473 3940 4050 4250 3435 3980 4548 3980 4108 4311 3455 4000 4575 4000 4131 4334 ±1% ±3% ±3% ±3% ±1% ±1% B57230V2103+260 B57221V2103J060 B57261V2223J060 B57221V2473J060 B57250V2473+560 B57250V2104+360 3380 3940 4386 4386 4050 4050 4386 4200 4250 4386 3435 3980 4455 4455 4108 4108 4455 4260 4311 4455 3455 4000 4480 4480 4131 4131 4480 4282 4334 4480 ±1% ±3% ±3% ±3% ±1.5% ±2% ±1% ±1% ±2% ±3% B57330V2103+260 B57321V2103+060 B57371V2223+060 B57371V2473+060 B57357V2473+560 B57358V2473+560 B57374V2104+060 B57350V2104+460 B57358V2104+360 B57371V2474+060 3940 3590 3940 4386 4386 4386 4386 4386 3980 3635 3980 4455 4455 4455 4455 4455 4000 3650 4000 4480 4480 4480 4480 4480 ±3% ±3% ±3% ±3% ±3% ±3% ±3% ±3% B57421V2102+062 B57401V2103+062 B57421V2103+062 B57471V2103+062 B57471V2223+062 B57471V2473+062 B57471V2104+062 B57471V2474+062 EIA case size 0402 10 10 22 47 47 100 ±1, ±5 ±5 ±5 ±5 ±1, ±3, ±5 ±1, ±3, ±5 EIA case size 0603 10 10 22 47 47 47 100 100 100 470 ±1, ±5 ±3, ±5 ±3, ±5 ±3, ±5 ±1, ±3, ±5 ±3, ±5 ±3, ±5 ±1, ±3, ±5 ±3, ±5 ±3, ±5 EIA case size 0805 1 10 10 10 22 47 100 470 ±3, ±5 ±3, ±5 ±3, ±5 ±3, ±5 ±3, ±5 ±3, ±5 ±3, ±5 ±3, ±5 + = Resistance tolerance: F = ±1% H = ±3% J = ±5% Application examples for SMD NTC thermistors Industrial and medical thermometers Thermostats Wheatstone bridge circiut LEDs      No discoloration No reduction in lumens Extension of life time Performance efficiency optimization Optimum design (reduction in number of LEDs) Thermal connection with a NTC on LED Battery packs Charging control unit of a battery pack using NTC thermistors as temperature sensor  Detects temperature rises of the battery cell during charging  Detects the ambient temperature for optimized charging  Detects heat generation of a battery cell caused by abnormal current  Performs temperature compensation for voltage measurement for display of the remaining amount of energy LCD displays LCD using a NTC thermistor as temperature sensor  LCDs are sensitive to temperature and have a limited operating temperature range  LCD contrast increases with temperature, wasting power at high temperatures  Low temperatures lead to low contrast  LCD modules often use temperature compensation circuits with NTC thermistors and resistors © EPCOS AG · A TDK Group Company Edition 08/2016 · Ordering No. B57999V2999J199 · Printed in Germany · SO 0816.5