Overview：

The Murata NCP15XH103F03RC is a high-precision NTC (Negative Temperature Coefficient) thermistor from Murata's NCP series. It offers a nominal resistance of 10 kΩ at 25°C with a tight tolerance of ±1% . The device features a B25/50 constant of 3380K (with B25/85 of 3434K and B25/100 of 3455K), and the B-value tolerance is also maintained at ±1% -.

Housed in an ultra-compact 0402 (1005 metric) surface-mount package, the thermistor measures just 1.0 mm × 0.5 mm × 0.5 mm. It operates over a wide temperature range of -40°C to +125°C with a maximum power rating of 100 mW . The device features excellent long-term stability, nickel barrier electrodes, and is compatible with reflow soldering processes .

Key electrical characteristics include:

Resistance at 25°C: 10 kΩ ±1%

B25/50 constant: 3380K ±1%

Maximum power rating: 100 mW 

Rated current: 0.31 mA at 25°C

Dissipation factor: 1 mW/°C

Applications：

The NCP15XH103F03RC is suitable for a wide range of temperature sensing and compensation applications, including:

Temperature Sensors – General-purpose temperature measurement and monitoring in electronic devices

Transistor Temperature Compensation – Stabilizing transistor circuits against temperature variations

IC Protection – Temperature monitoring and compensation for integrated circuits

Oscillating Circuits – Temperature compensation in oscillator circuits to maintain frequency stability

Telecommunications – Temperature sensing and compensation in telecom infrastructure

Portable Electronics – Smartphones, tablets, battery packs, and wearable devices requiring compact thermal management

Automotive Electronics – The device is rated with automotive screening level, suitable for vehicle electronic systems 

Battery Management Systems – Temperature monitoring for battery packs to ensure safe operation

Power Modules– Over-temperature protection and thermal management in power supplies