PTC thermistor for telecom apparatus circuit protection-MZ2 series

Advanced Protection with PTC Elements MZ24 Series for Telecom Termination

PTC Elements introduces the MZ24 series PTC Thermistor for advanced Telecom Termination Protection. This Thermistor PTC product provides critical safeguards against heat, overvoltage, and lightning strikes. The MZ24-9R0M160 PTC Elements produced by DXM Quality Thermistor Inc can withstand up to 600V, effectively preventing damage to telecom terminal interfaces from overcurrent and overheating.

Widely adopted by telecom equipment manufacturers, the PTC Elements MZ24 series offers reliable, high-quality protection, ensuring the long-term stability and safety of telecom systems.

Essential Applications of PTC Elements MZ24 Series in Telecom

• • MZ24 series PTC Elements are critical for protecting telecom systems across various applications. These Thermistor PTC components are widely used to ensure the safety and reliability of telecom infrastructure, including:

• Telecom Terminal Units: Protects interfaces from overcurrent and surges, ensuring stable operation.
• Telecom Switchgear: Prevents fault propagation, maintaining reliable system performance.
• Network Infrastructure: Safeguards routers, modems, and other telecom devices from electrical faults.
• Remote Telecom Equipment: Offers essential protection for outdoor or remote telecom devices exposed to environmental hazards.

By incorporating PTC Thermistor from DXM Quality Thermistor Inc, can enhance the durability and safety of your telecom systems, ensuring long-term reliability.

Key Benefits of Thermistor PTC MZ24 Series

• PTC Elements MZ24 series offer essential benefits for telecom system protection, ensuring reliability and safety.
  • Automatic Reset: PTC Thermistor resets automatically after a fault, removing the need for manual intervention.
  • Safe and Silent Operation: Contactless, noiseless, and flameless protection ensures silent and reliable performance.
  • Fast Response: PTC Elements quickly transition from low to high resistance during faults, providing immediate protection.
  • Overvoltage Performance: Handles 110/230V AC effectively, maintaining a high resistance state for continuous protection.
  • Energy Efficiency: Low rated current ensures minimal power consumption, making PTC Thermistor an energy-efficient choice.
  • Minimal Circuit Impact: Small steady resistance minimizes disruptions in normal circuit operation.
  • Precise Protection: Narrow resistance tolerance ensures accurate protection and better resistance matching.
  • Standards Compliance: Compliance with ITU-T K20 K21 requirement.
  • –Surge current（10/700μs）
    –Induction voltage（600V,1A,0.2S）
    –Power line contact（230V,15min.）
  • Long-Term Stability: DXM Quality Thermistor Inc products offer durable performance with RoHS compliance for environmental safety.

  Incorporating PTC Elements thermistors ensures your telecom systems are protected with reliable, high-quality components.

Key Features of PTC Elements MZ24 Series

Thermistor PTC Dimension(Unit: mm):

How PTC Elements Thermistors Protect High-Voltage Circuits

PTC Elements MZ24 series are essential for safeguarding high-voltage circuits, providing secondary protection even when primary protection is present. These Thermistor PTC components handle surge pulses up to 2KV and withstand short-term power inductionat high voltages, ensuring reliable circuit protection.

Importance of Thermistor PTC in High-Voltage Protection

PTC Elements thermistors are connected in series with each line to offer robust protection. Even with primary protection like gas discharge tubes, Thermistor PTC must endure severe conditions, including high surge pulses and voltage spikes.

Key Requirements for PTC Thermistor

For circuits with primary protection, a 220V to 300V PTC Elements are sufficient. However, in the absence of primary protection, a 600V Thermistor PTC is necessary to ensure effective circuit protection, safeguarding your telecom systems.

How PTC Elements Operate

In normal operation, the PTC Thermistors remains in a low resistance state, allowing current to flow smoothly. During an overload, the thermistor’s resistance increases sharply, effectively “cutting off” the circuit to prevent damage.

Once the fault is cleared, the Thermistor PTC cools down and returns to its low resistance state, allowing the circuit to resume normal operation. This cycle repeats, providing continuous and reliable protection.

Incorporating PTC Elements thermistors from DXM Quality Thermistor Inc ensures your circuits are protected against high voltage and overload conditions, maintaining the safety and reliability of your systems.

Selection Guide

• PTC Elements Marking of Part Number:

1.Series:Thermistor PTC for circuit protection,overvoltage protection of telecom apparatus;
2.Type:1-disc,2-encased,3-pin form-coating;4-pin form non-coating;
3.R25 resistance:55R-55;
4.Resistance tolerance:M+/-20%;
5.Non trip current(25 ℃):070-70mA;
6.Wire shape:S-straight, A-axis formed, U-in-formed;
7.Max. Voltage:250-250V.

Specifications and Part No.: