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An NTC 5D-15 thermistor with two wire leads. The MF72 5d15 is a black disc with the text

NTC 5D-15 Thermistor for limitting inrush current

Introducing the DXM NTC 5D-15 Thermistor for limitting inrush current, your ideal solution for efficient circuit protection.

Key Features of NTC 5D 15 thermistor:
● Reliable Inrush Current Limiter: Protecting electronic circuits from damage.
● Cost-Effective Solution: Reducing overall system costs.
● Wide Operating Temperature: MF72 5d15 from -55°C to +200°C,perfect for a wide range of applications.
● High Durability, Compact Design: Small size encapsulated in phenolic resin, ensuring long-lasting protection.
● High Current Capacity: Maximum steady-state current of 6A, ideal for high-power applications.

Choose DXM for cutting-edge technology and superior protection. Upgrade your circuits now with the 5D-15 limitting inrush current for unmatched safety and performance.

Model Number

MF72 5D15

Brand

DXM

INQUIRY

Product Detail

NTC 5D-15 Thermistor Introduction

The NTC 5D-15 thermistor is a reliable for limitting inrush current essential for protecting electronic circuits. With a wide operating temperature range and high durability, it’s ideal for applications like energy-saving lamps, CRT monitors, and industrial equipment.The mf72 5d15 thermistor ensures efficient operation by controlling initial current surges, enhancing device longevity and safety.

MF72 NTC 5D 15 thermistor Marking of Part Number:

Diagram showing mf72 5d15 part number marking. The diagram includes four boxes labeled with numbers 1 through 4. Box 1 contains the text "MF72." Box 2 contains the number "5." Box 3 contains the letter "D." Box 4 contains the number "15."

1.Series:MF72- NTC 5D 15 Thermistor for limitting inrush current
2.R25 resistance:5-5Ω
3.Dimension:D-Diameter
4.Chip diameter:15 - Φ15mm

Specification&part no. of MF72 NTC 5D 15 Thermistor:

Item	Part No.	Resistance R 25（Ω）	Max Steady State Current (A)	Approx. Resistance Value at Maximum Current (Ω)	Dissipation Factor	Thermal Time Constant (sec)	Dimensions (mm)
					(mW/oC)		Dmax	Tmax	F±1
1	MF72 5D15	5	6	0.112	20	76	17.5	6	10/7.5

MF72-5d15 Dimensions and Materials

MF72 5d15 Dimensions

Line drawing of an NTC 5D 15 Thermistor showing its dimensions. The thermistor has a round sensor and two leads.

Item	Parameter	Dimension
1	Diameter (Dmax)	17.5mm
2	Thickness (Tmax)	6 mm
3	Lead Length (L1)	20 ± 0.5 mm
4	Lead Length (L2)	5 ± 2 mm
5	Lead Spacing (F1)	10 ± 1 mm
6	Lead Spacing (F2)	7.5 ± 1 mm
7	Lead Diameter (d)	0.8 mm

MF72 5d15 Materials

Item	Part	Description
1	Encapsulation Material	Phenolic Resin
2	Leads	Tinned Copper-Clad Steel Wire
3	Color	Black

NTC 5dD 15 Thermistor Datasheet

Item	Description	NTC 5d 15 thermistor Main Parameters
1	Zero Power Resistance at 25°C（Ω）：	5Ω ± 20%
2	Maximum Steady State Current（A）：	6A
3	Dissipation Factor（mW/℃）：	20 mW/°C
4	Thermal Time Constant（S）：	76 seconds
5	Operating Temperature Range（℃）：	-55°C to +200°C
6	B value of thermistor（K）：	B(25/50) =2700K±10%

Applications of NTC 5D-15 Thermistor

The NTC 5D 15 Thermistor is a reliable solution for limiting inrush current and protecting sensitive circuits. It is widely used in various applications due to its high performance and durability.

Key Applications

Electronic Ballasts:
The NTC 5D 15 Thermistor is used in electronic ballasts for fluorescent lamps. It limits inrush current and prevents circuit damage.
Energy-Saving Lamps:
The MF72 5D15 thermistor improves the efficiency and lifespan of compact fluorescent lamps (CFLs). It controls the initial current surge when the lamp switches on.
CRT Televisions and Monitors:
In CRT monitors and televisions, it is essential in demagnetization circuits. It prevents magnetic interference and ensures clear image quality.
Communication Equipment:
The thermistor provides overcurrent protection in communication devices. It ensures reliable performance and safeguards sensitive components.
General Circuit Protection:
The NTC 5D 15 Thermistor offers overcurrent and overload protection in power supplies and battery chargers. It limits excessive current that could damage components.
Motor Start Protection:
The Thermistor inrush current limiter is used in motors to control the initial current surge during startup. This extends the motor's life and prevents electrical faults.
Welding Machines:
The MF72 5D15 thermistor protects welding equipment from overcurrent and overload situations, ensuring stable operation and safety.

The NTC 5D 15 Thermistor is an essential component for applications requiring efficient inrush current limiting. It enhances the safety and longevity of various devices across industries.

Key Features and Benefits

The NTC 5D-15 thermistor stands out due to several features and benefits:

High Accuracy:Provides precise temperature measurement and control, essential for sensitive electronic applications.

Wide Operating Temperature Range:

Can function effectively in extreme temperatures, from -55°C to +200°C, making it suitable for diverse environments.

Durability:Encapsulation in phenolic resin enhances durability, protecting the thermistor from physical damage and environmental factors.

Fast Response Time:A thermal time constant of 76 seconds ensures quick response to temperature changes, improving the efficiency of the circuit's protection mechanisms.

High Steady-State Current Capacity:NTC 5d 15 thermistor can handle a maximum steady-state current of 6A, making it suitable for high-power applications.

Cost-Effective:Provides an economical solution for temperature monitoring and control, reducing overall system costs.

Comparison with Other Thermistors

To understand the advantages of the ntc 5d 15 for limitting inrush current, it's helpful to compare it with other similar thermistors. Below is a comparative table:

Parameter	mf72 5d15	mf72 10d 15 ntc	mf72 10d20 thermistor
Resistance at 25°C (Ω)	5	10	20
Max Steady State Current (A)	6	7	4
Dissipation Factor (mW/°C)	20	22	21
Thermal Time Constant (s)	76	75 max	86

Installation and Usage Guidelines

Proper installation and usage of the NTC 5D-15 thermistor are crucial for optimal performance. Here are some guidelines:

Soldering:Avoid excessive heat during soldering. The recommended soldering temperature is 250°C ± 10°C for no more than 3 seconds.

Mounting:Ensure the leads are securely mounted and free from mechanical stress. Use appropriate fixtures to prevent movement during operation.

Circuit Design:Incorporate the thermistor in the circuit where it can effectively monitor and control the desired temperature range. Position it away from heat sources that may affect its accuracy.

Environmental Considerations:Protect the thermistor from corrosive environments and excessive moisture, which could degrade its performance over time.

Case Studies and Real-world Applications

To further illustrate the importance and effectiveness of the NTC 5D-15 thermistor, let's explore some real-world applications:

Consumer Electronics:In a popular brand of energy-saving lamps, the mf72 5d15 is used to prevent initial current surges, significantly increasing the lamp's lifespan.

Industrial Equipment:A leading manufacturer of welding machines integrates the ntc 5d 15 thermistor to provide overcurrent protection, ensuring safe and reliable operation under heavy-duty conditions.

Automotive Industry:In electric vehicles, the NTC 5d 15 thermistor is used in the battery management system to monitor temperature and prevent thermal runaway, enhancing vehicle safety.

Future Trends and Innovations

The demand for NTC thermistors, including the NTC 5d 15 thermistor , is expected to grow with advancements in technology and increasing emphasis on energy efficiency. Future trends include:

Smart Grids:Integration of NTC thermistors in smart grid technology to monitor and control temperature in power distribution systems, enhancing reliability and efficiency.

Renewable Energy:Use in solar panels and wind turbines to monitor temperature and optimize performance, contributing to sustainable energy solutions.

IoT and Smart Devices:Expansion of NTC thermistor applications in Internet of Things (IoT) devices for real-time temperature monitoring, improving device safety and functionality.

NTC 5D 15 Thermistor Electrical Properties and Requirements

The MF72 5d15 provides precise temperature measurements and protects against inrush current. Below are its key electrical properties and performance requirements.

Electrical Properties of NTC 5D 15 for limitting inrush current

Term Name	Description	Performance Requirements
Zero Power Resistance	The resistance value measured at 25℃ when the change in resistance due to internal heating of the resistor can be ignored relative to the total measurement error.	See Electrical Characteristics Parameters
Thermistor B Value	The B value of thermistor can be calculated using the zero power resistance at 25℃ and 50℃. The formula is:	See Electrical Characteristics Parameters
Maximum Steady-State Current	The maximum continuous current allowed to be applied to the thermistor at an ambient temperature of 25℃.	See Electrical Characteristics Parameters
Thermal Dissipation Coefficient	The ratio of the change in power dissipated in the thermistor to the corresponding change in thermistor temperature at a specified temperature. Unit: mW/℃	See Electrical Characteristics Parameters
Thermal Time Constant	The time required for the thermistor to change its temperature by 63.2% of the difference between its initial and final temperatures under zero power conditions.	See Electrical Characteristics Parameters
Operating Temperature	The allowable temperature range for the thermistor to operate continuously and long-term.	-55 to +200℃
Rated Temperature	The temperature variation range when operating with the working current.	-55 to +200℃

Performance Requirements of 5D 15

Term Name	Description	Performance Requirements
Load Durability	After testing the thermistor at maximum steady-state current for 1000±2h at room temperature, it returns to its original state at room temperature.	No visible damage, maximum resistance change rate within ±15%.
Rapid Temperature Change	Cycling storage at Ta=﹣55℃±3℃ and Tb=200±2℃ for 30 minutes each, 5 cycles, then returning to original state at room temperature.	No visible damage, maximum resistance change rate within ±15%.
Steady-State Humidity	Storage at 40±2℃ with 93±3% relative humidity for 48±2 hours, then 1 hour in normal state.	No visible damage, clear markings, no breakdown or arcing, insulation resistance greater than 100MΩ, maximum resistance change rate within ±15%.
Lead Strength	Axial force of 20N applied to the lead for 10 seconds.	No visible damage, maximum resistance change rate within ±15%.
Solder Heat Resistance	The thermistor leads are immersed in solder at 250±10℃, 6mm from the resistor body for 3 seconds, then restored to original state at room temperature.	No visible damage, maximum resistance change rate within ±15%.
Solderability	Leads immersed in solder at 250±10℃ for 3 seconds.	Solder coverage area greater than 95%.
Current Surge	Thermistor withstands 2000 current surges at maximum steady-state current for 15 seconds each, then restored to original state.	Maximum resistance change rate within ±15%.
Voltage Withstanding	Apply AC1500V voltage for 1 minute between resistor lead and insulating layer.	No breakdown or arcing.
Insulation Resistance	Apply DC1000V voltage for 1 minute.	≥500MΩ.

Conclusion

The NTC 5D-15 thermistor is a versatile and reliable component essential for limiting surge current of various electronic applications. Its durability, and wide operating range make it a valuable asset in industries ranging from consumer electronics to industrial equipment.