Murata Introduces New Tighter Tolerance Version of its NCP Series of Chip NTC Thermistors

Murata Introduces New Tighter Tolerance Version of its NCP Series of Chip NTC Thermistors

4/30/2010

Murata Manufacturing Co., Ltd.

President/ Statutory Representative Director: Tsuneo Murata

Overview

Murata Manufacturing Co., Ltd. announces an ultra-high precision version of its NCP Series This new model features precision chip both a resistance tolerance and B-constant* tolerance of less than ±1%, making it the world’s first ultra-high precision chip thermistor. These thermistors make it possible to keep detection temperature error at high temperatures to a minimum, allowing for increased design freedom..

Background

In recent years, the miniaturization and performance improvement of electronic equipment has been accompanied by an increasingly important need for countermeasures against heat generated in circuits. Chip NTC thermistors are widely used as temperature sensing devices in equipment that tends to generate relatively high internal heat, such as mobile equipment, rechargeable batteries, and automobiles.

Current Murata chip thermistors have a resistance tolerance and B-constant tolerance of ±1%. By refining our ceramic materials and laminating processes Murata developed NCP Series models of ultra-high precision chip thermistors with both a resistance tolerance and B-constant tolerance of less than ±1%.

By using these NCP Series ultra-high precision chip thermistors, it is possible to keep detection temperature error at high temperatures to a minimum, which makes it possible to reduce the design margin for detection of anomalies caused by overheating. In addition, stable operation can be achieved at temperatures close to the application’s maximum rating. Because the NCP series enables the accurate detection of any temperature rise that exceeds the rating, it may be used with circuits with higher temperature-related performance.

Terminology

B constant a constant which indicates magnitude of resistance change with respect to temperature

Features

  • Tight resistance and B-constant tolerance keep detection temperature error to a minimum
  • At 0-40℃, detection temperature error is less than ±0.5℃ (Murata simulation)
  • 1.0mm x 0.5mm and 1.6mm x 0.8 mm size
  • Compatible with automotive applications
  • Murata online simulator available at:

https://www.murata.com/products/design_support/mcnvs/index.html

Applications

  • PC-related products
  • mobile phones
  • DSC/DVC
  • mobile audio players
  • automotive electrical equipment

Part Number

Consumer products

NCP18XH103D03RB NCP15XH103D03RC NCP18WB473D03RB NCP15WB473D03RC
NCP18WF104D03RB NCP15WF104D03RC

Automotive products

NCP18XH103D0SRB NCP15XH103D0SRC NCP18WB473D0SRB NCP15WB473D0SRC
NCP18WF104D0SRB NCP15WF104D0SRC

Characteristics

Characteristics

Electric Characteristics

Consumer products

Chipsize Product name Resistance B constant Operating temperature range
1005 NCP15XH103D03RC 10kΩ±0.5% 3380K±0.7% -40~+125℃
1608 NCP18XH103D03RB
1005 NCP15WB473D03RC 47kΩ±0.5% 4050K±0.5% -40~+125℃
1608 NCP18WB473D03RB 4030K±0.5%
1005 NCP15WF104D03RC 100kΩ±0.5% 4250K±0.5% -40~+125℃
1608 NCP18WF104D03RB 4200K±0.5%

Automotive products

Chipsize Product name Resistance B constant Operating temperature range
1005 NCP15XH103D0SRC 10kΩ±0.5% 3380K±0.7% -40~+150℃
1608 NCP18XH103D0SRB
1005 NCP15WB473D0SRC 47kΩ±0.5% 4050K±0.5% -40~+150℃
1608 NCP18WB473D0SRB 4030K±0.5%
1005 NCP15WF104D0SRC 100kΩ±0.5% 4250K±0.5% -40~+150℃
1608 NCP18WF104D0SRB 4200K±0.5%

External Size

External Size

Murata in Brief

Murata Manufacturing Co., Ltd. is a worldwide leader in the design, manufacture and sale of ceramic-based passive electronic components & solutions, communication modules and power supply modules. Murata is committed to the development of advanced electronic materials and leading edge, multi-functional, high-density modules. The company has employees and manufacturing facilities throughout the world. For more information, visit Murata's website at www.murata.com