NTG04-012MF

Inrush Current Limiters (ICL) Overview

The NTG04-012MF is a negative temperature coefficient (NTC) thermistor manufactured by Yageo, classified as an inrush current limiter. It features a nominal resistance of 12 Ohms with a tolerance of ±20%. The component supports a maximum steady-state current of 4 Amperes and utilizes a 16.00 mm (0.630 inch) body diameter for axial leaded mounting. Designed for robust thermal management, it operates within a standard industrial temperature range suitable for protecting electronic circuits against high initial surge currents during power-up phases.

Inrush Current Limiters (ICL) Feature Summary

• Provides effective suppression of high inrush currents to protect downstream circuit components
• Constructed with NTC technology for rapid self-heating and resistance reduction under load
• Features a compact axial leaded package designed for through-hole PCB integration

Inrush Current Limiters (ICL) Applications

• Power supply input stages requiring surge protection
• Consumer electronics AC/DC adapter inputs
• Industrial control system power distribution modules

Inrush Current Limiters (ICL) Procurement Notes

Verify the specific lot date code and RoHS compliance status directly with the supplier or manufacturer before finalizing procurement orders. Ensure that the receiving facility has appropriate ESD handling procedures, although these are passive components, proper storage conditions remain critical for maintaining long-term reliability and preventing physical damage to the leads during assembly processes.

Inrush Current Limiters (ICL) Selection Notes

Select this component when designing circuits that require reliable limiting of transient surge currents without adding significant series resistance during normal operation. The 12 Ohm initial resistance offers a balance between peak current limitation and minimal voltage drop once the device heats up. Consider the thermal environment and ambient operating temperatures to ensure the thermistor reaches its low-resistance state efficiently without overheating during continuous duty cycles.

Inrush Current Limiters (ICL) Part Context

This part belongs to Yageo’s NT series of inrush current limiters, which are specialized NTC thermistors engineered specifically for surge protection applications. Unlike general-purpose NTC thermistors used for temperature sensing, this series is optimized for energy absorption and current clamping capabilities. The NTG04 variant represents a standard size within this family, providing a cost-effective solution for protecting sensitive semiconductor devices from the damaging effects of high initial charging currents in capacitive loads.

Inrush Current Limiters (ICL) Replacement Considerations

Public confirmed substitute part numbers: None.