MZ4 PTC Thermistor 600-800Ω 200mA Overcurrent Protection Component for Fluorescent Ballasts
Price:
TBA
MOQ:
1000 Pieces
Delivery Time:
2 Weeks
Brand:
AMPFORT
Product Description
Product Overview
The MZ4 series PTC thermistor provides reliable overcurrent protection with a resistance range of 600-800Ω and maximum current rating of 200mA. This phenolic resin coated component is designed for fluorescent lamps, electronic ballasts, and energy-saving lighting applications.
Key Features
- Extends fluorescent tube service life by more than 10 times through time-delay start functionality
- High reliability with over 100,000 switching cycles without resistance drift
- Withstands voltages up to 800-1,000V AC
- Excellent safety and stability performance
- Applications include energy-saving lamps, fluorescent electronic ballasts, and digital multi-meters
Physical Dimensions
| Parameter | Specification | Lead Configuration |
|---|---|---|
| Diameter (D) | 4.5mm max | Straight, Axis Formed, or In-Forming |
| Thickness (T) | 5.0mm max | - |
| Lead Length (L) | Min 20mm | - |
| Lead Spacing (W) | 5.0±0.5mm | - |
| Lead Diameter (d) | 0.5±0.05mm | - |
Coating Specifications
| Coating | Material | Color |
|---|---|---|
| Coated | PF Resin | Yellow or Green |
Electrical Performance
| Parameter | Specification | Test Conditions |
|---|---|---|
| Zero Power Resistance | 600-800Ω | 25±2℃ ambient temperature |
| Over Voltage Withstanding | ≥800V ΔR/Rn≤20% | Starting current ≥200mA, 220VAC for 7s, then 800VAC for 6s |
| Over Current Withstanding | ≥200mA ΔR/Rn≤20% | 220VAC, 1 minute on/5 minutes off for 20 cycles |
| Curie Temperature | 75℃ | Measured at 2 times nominal resistance |
Application Theory
Additional Performance Characteristics
| Parameter | Requirement | Test Method |
|---|---|---|
| Appearance | No visible defects, bubbles, or micro holes | Visual inspection |
| Welding Quality | 95% tinned area with smooth welds | GB2423-28 Ta, 230℃ tin solution immersion |
| Heat Resistance | ΔR/Rn≤20% after testing | GB2423-28 Tb, 255℃±10℃ for 3±0.5s |
| Terminal Strength | ΔR/Rn≤20% after 10N force application | GB2423-29 U Test Ua |
Performance Characteristics Graph
Technical Documentation
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
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