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Circuits Automatic Degaussing MZ71-18RMB 18 OHM 60C PTC Thermistor
Description
>MZ7 PTC thermistor are used as automatic degaussing components in
color TVs and color displays, and current-limiting components in AC
circuits.
MZ71, 72, 73 series PTC thermistors and Degaussing PTC
Thermistorare mainly used in degaussing circuits of color TVs,
displays and other CRTs, which can effectively eliminate image
distortion, abnormal colors or irregular images caused by stray
magnetic fields, and make color The picture is more vivid and
clearer. It has the advantages of low residual current and good
reliability. At present, the development trend of automatic
degaussing PTC thermistors is small size, low resistance, low
residual current, high impact resistance, and high reliability.
Specification
>Product Name: MZ71-18RM PTC Thermistor
R25 : 18Ω±30%
Max Diameter : 14.5mm
Non-action current : 60±7℃
Max Operating Voltage : 270V
Application : Automatic degaussing
Color : Green
Features
1. PTC thermistor for time delay start of ballast & lamp could
extend the service life of the fluorescent tube by more than
10-time
2. PTC thermistor applied in various types of electronic
energy-saving lamp and fluorescent electronic ballasts
3. Switching current can pass over 100,000 times: the resistance
will not float
4. The withstanding voltage can reach to over 800-1,000V AC
5. High reliability, good performance of safety and stability
6. Application:Energy-saving lamp, fluorescent electronic ballasts,and digital multi-meters
Number | Name | Technical Requirements | Leads |
D | Diameter | 4.5max | □ Straight □ Axis Formed ■ In-Forming |
T | Thickness | 5.0max | |
L | Lead Length | Min20 | |
W | Distance between fuses | 5.0±0.5 | |
d | Diameter of lead | 0.5±0.05 |
Coating Details
Coating | Material | Color |
□ No coating ■ Coating | ■ PF resin □ Silicon | ■ Yellow ■ Green |
Electrical Performances
Number | Items | Technical Requirements | Test Conditions |
3-1 | Resistant for Zero Rated Power | 600-800Ω | Atmosphere Temperature:25±2℃ Accuracy of the Test:±0.5% |
3-2 | Over Voltage Withstanding | ≥800V ΔR/Rn≤20% No visual damage | Starting Current:≥200mA, Starting Voltage:220VAC,hold on for 7s,and then change to high voltage800VAC,for 6s.the is shown as follows: Stay under the conditions of regular temperature and humidity for 4-5 hours, and then check the Rn again. |
3-3 | Over Current withstanding | ≥200mA ΔR/Rn≤20% No visual damage | Starting Current:≥200mA,Voltage 220VAC, switch on the circuit for 1 minute after every 5minutes, switch-off, and repeat this operation for 20 times. Put it under the conditions of regular temperature and humidity for 4-5 hours and then check the Rn again |
3-5 | Curie Temperature | 75℃ | Check the temperature at 2 times Rn. |
Application Circuit
Other Performance
Number | Items | Technical Requirements | Test Conditions |
4-1 | Appearance | No noticeable defect, such as, bubbles and micro holes, etc; NO visible damage that may reduce its performance; the symbol is clear | Visual Check |
4-2 | Welding | It's tinned evenly and with smooth welds, and the tinned area 95% | Do the test according GB2423-28 of Ta, put welding aid on the faze end and soaked it into the 230℃ tin solution with only 5mm distance to the PTC body above the solution, and maintain for 3-5s. |
4-3 | Heat Resistance | Check the variation rate of resistance before and after the test ΔR/Rn≤20% | Do the test according to GB2423-28 of Tb stsy under the regular temperature and humidity for 4-5 hours, and then check the Rn again.Dipping terminals to a depth of 15mm in a soldering bath of 255℃±10℃,and to the place of 6mm far from PTC boby for 3±0.5s |
4-4 | Intensity of terminal | Check the variation rate of resistance before and after the test ΔR/Rn≤20% No Visual Damage No break out | Do the test according to GB2423-29 of U Test Ua: Fasten the body and apply a force gradually to each lead until 10N and then keep for 10sec.hold the body and apply a force to each lead until 90° slowly at 5N in the direction of lead axis and then keey for 10sec,and do this in the opposite direction repeat for other terminal. |
Characteristics
24/30/32V Series Specification
Item | MAX. VOLTAGE(V) | CURRENT WHEN DON’T OPRATE AT 60℃(mA) | poses current when at -10 ℃ (mA) | maximum current(A) | Resistance when 25 ℃ (ohm) | Curie point (℃) | Ontology diameter (Dmax)(mm) | thickness (Tmax)(mm) | lead spacing (W)(mm) | Terminal diameter (phi d)(mm) |
MZ8B08D80C100RN24V | 24 | 80 | 320 | 2.0 | 10 ±30% | 80 | 8.0 | 4.0 | 5.0 | 0.6 |
MZ8B08D80C6R8M24V | 24 | 90 | 370 | 2.0 | 6.8 ±30% | 80 | 8.0 | 4.0 | 5.0 | 0.6 |
MZ8B10D80C4R7N24V | 24 | 120 | 500 | 2.0 | 4.7 ±30% | 80 | 10.0 | 4.0 | 5.0 | 0.6 |
MZ8B10D80C3R3N24V | 24 | 140 | 580 | 2.0 | 3.3 ±30% | 80 | 10.0 | 4.0 | 5.0 | 0.6 |
MZ8B10D80C2R2N24V | 24 | 180 | 710 | 2.0 | 2.2 ±30% | 80 | 10.0 | 4.0 | 5.0 | 0.6 |
MZ6B06D120C13RN30V | 30 | 145 | 400 | 0.7 | 13 ±25% | 120 | 6.0 | 4.0 | 5.0 | 0.6 |
MZ8B08D120C4R6N30V | 30 | 250 | 700 | 2.0 | 4.6 ±25% | 120 | 8.0 | 4.0 | 5.0 | 0.6 |
MZ8B10D120C1R8N30V | 30 | 410 | 1120 | 3.0 | 1.8 ±25% | 120 | 10.0 | 4.0 | 5.0 | 0.6 |
MZ8B12D120C1R2N30V | 30 | 520 | 1420 | 4.3 | 1.2 ±25% | 120 | 12.0 | 4.0 | 5.0 | 0.6 |
MZ8B08D80C47RN32V | 32 | 30 | 140 | 1.5 | 47 ±30% | 80 | 8.0 | 4.0 | 5.0 | 0.6 |
MZ8B08D80C33RN32V | 32 | 40 | 170 | 1.5 | 33 ±30% | 80 | 8.0 | 4.0 | 5.0 | 0.6 |
MZ8B08D80C22RN32V | 32 | 45 | 200 | 1.5 | 22 ±30% | 80 | 8.0 | 4.0 | 5.0 | 0.6 |
MZ8B08D80C15RN32V | 32 | 60 | 240 | 1.5 | 15 ±30% | 80 | 8.0 | 4.0 | 5.0 | 0.6 |
Contact Details:
Andy Wu
Email: andy@tianrui-fuse.com.cn
Tel/Whatsapp: +86 13532772961
Wechat: HFeng0805
Skype: andywutechrich
QQ: 969828363