Vishay Intertechnology : New Vishay Intertechnology SMD NTC Thermistors Offer Enhanced Stability With Low ± 0.5 % Max. Variation of R25 Values
January 29, 2014 at 09:55 am
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New Vishay Intertechnology SMD NTC Thermistors Offer Enhanced Stability With Low ± 0.5 % Max. Variation of R25 Values
Devices Provide High R25 Values From 100 kΩ to 210 kΩ and Temperature Range to +125 °C in 0402, 0603, and 0805 Case Sizes.
MALVERN, Pa. - Jan. 29, 2014 - Vishay Intertechnology, Inc. (NYSE: VSH) today introduced a new series of SMD NTC thermistors with enhanced stability for temperature sensing and compensation circuits. Providing precise measurements over a wide temperature range of -40 °C to +125 °C, NTCS....E3...SMT thermistors experience an ultra-low ± 0.5 % maximum variation in their initial electrical resistance values at +25 °C (R25) after 10,000 hours of operation over the full temperature range.
Most SMD NTC thermistors with low initial electrical tolerances experience a change in their electrical properties after soldering, which has a direct impact on the accuracy of their temperature measurements. Devices in the Vishay BCcomponents NTCS....E3...SMT series, however, feature non-standard R25 values that are adapted to the resistivity of the thermistors' stable ceramic material and case dimensions. This preserves the devices' original electrical properties throughout their lifetime for increased accuracy.
Optimized for heat counters, body thermometers, and other medical applications, the thermistors released today offer one R25 value per case in the 0402, 0603, and 0805 case sizes. The devices' high R25 values from 100 kΩ to 210 kΩ reduce self-heating effects, which could result in false temperature readings.
Monolithic SMD thermistors with nickel barrier and pure tin, the RoHS-compliant NTCS....E3...SMT series is ideal for wave and reflow soldering. The devices are delivered on punched paper tape on reels in packages of 4000 units (for case 0603 and 0805) and 10 000 units (for case 0402).
Device Specification Table:
Part #
NTCS0402E3214SMT
NTCS0603E3124SMT
NTCS0805E3104SMT
Case size
0402
0603
0805
R25 value
210 kΩ
122 kΩ
100 kΩ
R25 tolerance
1 %
1 %
1 %
B25/85 value
3590 K
3590 K
3590 K
B25/85 tolerance
± 1 %
± 1 %
± 1 %
Max. power
dissipation
70 mW
120 mW
210 mW
Samples and production quantities of the new NTC thermistors are available now, with lead times of six weeks for larger orders.
Vishay Intertechnology, Inc., a Fortune 1000 Company listed on the NYSE (VSH), is one of the world's largest manufacturers of discrete semiconductors (diodes, MOSFETs, and infrared optoelectronics) and passive electronic components (resistors, inductors, and capacitors). These components are used in virtually all types of electronic devices and equipment, in the industrial, computing, automotive, consumer, telecommunications, military, aerospace, power supplies, and medical markets. Vishay's product innovations, successful acquisition strategy, and "one-stop shop" service have made it a global industry leader. Vishay can be found on the Internet at www.vishay.com.
Vishay Intertechnology, Inc. (Vishay) is engaged in manufacturing a portfolio of discrete semiconductors and passive electronic components, which supports designs in the automotive, industrial, computing, consumer, telecommunications, military, aerospace, and medical markets. Vishay designs, manufactures, and markets electronic components that cover a range of functions and technologies. Its products include commodity, non-commodity, and custom products. Vishayâs brands include Siliconix, Dale, Draloric, Beyschlag, Sfernice, MCB, UltraSource, Applied Thin-Film Products, IHLP, HiRel Systems, Sprague, Vitramon, Barry, and BCcomponents. Vishayâs semiconductors products include metal oxide semiconductor field-effect transistors (MOSFETs), diodes, and optoelectronic components. The Companyâs semiconductor components are used for a variety of functions, including power control, power conversion, signal switching, signal routing, signal blocking, two-way data transfer, and circuit isolation.