MZ71-18RM 18Ω PTC Thermistor for CRT Degaussing - 7.5mm Pitch, 270V Rating
Price:
Contact sales
MOQ:
1000PCS
Delivery Time:
7-10 Workdays
Brand:
AMPFORT
Product Description
Product Overview
The MZ71-18RM is a ceramic PTC thermistor designed specifically for degaussing applications in CRT color televisions and displays. With a nominal resistance of 18Ω ±30% and rated voltage of 270V, this component effectively eliminates image distortion caused by stray magnetic fields.
Technical Specifications
Electrical Performance
| Parameter | Specification | Test Condition |
|---|---|---|
| Nominal Resistance | 18Ω ±30% | 25±2℃, voltage below 1.5VDC |
| Rated Voltage | 220 Vrms | Operating temperature: -10℃ to +60℃ |
| Maximum Voltage | 270 Vrms | |
| Minimum Degaussing Coil Resistance | 12Ω | |
| Current Decay (After 3 sec) | <180 mAp-p | 25±2℃, test voltage: 220Vrms |
| Curie Temperature | 60±7℃ |
Physical Dimensions
| Dimension | Value | Lead Shape |
|---|---|---|
| Diameter (D) | 14.5mm max | Straight / Axis bend / Informing |
| Thickness (T) | 6.0mm max | |
| Length (L) | 3-5mm | |
| Pitch (W) | 7.5±1.0mm | |
| Lead Diameter (d) | 0.7±0.05mm |
Construction Details
| Feature | Specification |
|---|---|
| Coating | Silicone (Green) |
| Marking | MZ71-18RM AC270V |
| Lead Wire | Tinned Steel Wire |
Key Features & Advantages
- Large inrush current capability
- Low residual current operation
- High withstand voltage strength (270V)
- Excellent impact resistance and reliability
- Compact 7.5mm pitch design for PCB mounting
- Contactless operation ensures no noise and long lifespan
- RoHS compliant for environmental safety
Application Information
This PTC thermistor is primarily used in automatic degaussing circuits for CRT color televisions and displays. When powered on, it provides high current to eliminate stray magnetic fields, then automatically transitions to high-resistance state to minimize power consumption during normal operation.
Technical Documentation
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Company
Dongguan Ampfort Electronics Co., Ltd.
Location
Floor 5,Changlong Industrial Building,No.6,Jiangnan Road,Jingshan,Chashan Town,Dongguan 523323,China
Contact Person
Annie Fang