4MM Series MZ4B04D75C 500-800RMN265V Instrument PTC Surge Current
Thermistor For Control Panel
1,Symbol for the products
1-1,Symbol for the products MZ4 | Note MZ4 Type Number |
2,外形规格Specifications of Appearance
2-1,Dimensions (mm)
| Number | Name | Technical Requirements | Leads |
| D | Diameter of Resistance | 4.5max | □ Straight □ Axis Formed ■In-Forming |
| T | Thickness of Resistance | 5.0max |
| L | Length of fuse | Min20 |
| W | Distance between fuses | 5.0±0.5 |
| d | Diameter of fuse | 0.5±0.05 |
2-2.Coating
| Coating | Material | Color |
□No coating ■Coating | □PF resin ■Silicon | □Yellow ■Green |
3,Electric Performance
Number | Items | Technical Requirements | Test Conditions |
| 3-1 | Resistant for Zero Rated Power | 300-500Ω | Atmosphere Temperature:25±2℃ Accuracy of the Test:±0.5% |
| 3-2 | Over Voltage Withstanding | 800V ΔR/Rn≤20% | 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% | 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℃±7 | Check the temperature at 2 times Rn. |
4,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 at Fuse end | Check the variation rate of resistance before and after the test ΔR/Rn≤20% 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. |
High Reliability Ceramic PTC Thermistor Strong Ability To Suppress
Inrush Current
Organizational structure and functional principle of PTC thermistor
Ceramic materials are usually used as excellent insulators with
high resistance, while ceramic PTC thermistors are based on barium
titanate and doped with other polycrystalline ceramic materials,
which have low resistance and semiconducting properties. It is
achieved by purposely doping a material with a higher chemical
valence as the lattice element of the crystal: in the crystal
lattice, part of the barium ions or titanate ions are replaced by
ions with higher valence, thus obtaining a certain amount Free
electrons that produce conductivity. For the PTC thermistor effect,
that is, the reason for the step increase in the resistance value
is that the material structure is composed of many small
crystallites, and a potential is formed on the interface of the
grains, the so-called grain boundary (grain boundary). Barriers,
which prevent electrons from crossing into adjacent regions, thus
producing high resistance, this effect is counteracted at low
temperatures: high permittivity and spontaneous polarization at
grain boundaries prevent The formation of a potential barrier
allows electrons to flow freely. And this effect at high
temperature, the dielectric constant and polarization intensity are
greatly reduced, resulting in a substantial increase in potential
barrier and resistance, showing a strong PTC effect.
Application
It applies in the over-current overload and short circuit
protection of transformers, battery charger, switches, switch power
supply, adaptor, meter, instrumentation, apparatus, electronic
coils, control panels, air conditioner, automotive electron, etc.
The characteristics of PTC thermistor are:
1. Power saving
The energy input of the thermistor adopts the proportional type,
which has the current limiting characteristic of the protection
circuit, and saves power compared with the switching energy input
of heating elements such as nickel-chromium wires.
2. Long service life
The PTC thermistor itself is an oxide, there is no high-temperature
oxidation defect of the nickel-chromium element wire, and there is
no fragile situation of the infrared diode, the service life is
long, and the service life of the porous type is longer than that
of the non-porous type
3. It has the special performance of constant temperature,
adjustment and temperature control
When AC or DC voltage is given to the thermistor element to heat
up, below the Curie temperature, the resistivity is relatively low;
if it is higher than the Curie temperature, the resistivity
suddenly increases, so that the thermistor current is reduced to a
fixed value, reaching Automatic constant temperature, temperature
adjustment purpose
4. Non-combustible, safe and stable
When the PTC thermistor is hot, it does not glow red, has no flame,
and is difficult to ignite
When the temperature near the thermistor exceeds the limit value,
its power is automatically reduced to a stable value, and no
burning accidents will occur
5. Wide operating voltage range
PTC thermistor can be used normally under low voltage 6 to 36V and
high voltage 110-240V
6. Simple structure
The thermistor itself is to be automatically temperature
controlled, and no other automatic temperature control circuit
assembly is required
Competitive Advantage:
1, Convenient installment and small size
2, No requirement for reseting after over-heat protection
3, Quick action
4, We can offer equivalent PTC thermistor of Thinking & TDK
5, Long life working time
6, Good stability
7, Wide range protection temperature: 30~150°C
Common models of LKMZB series overcurrent protection PTC thermistor
| Model | Curie | Resistance | Action | No action | Maximum | Naximum | Dimensions |
| temperature | typical value | electric current | electric current | electric current | Work |
| | | @25℃ | @60℃ | @25℃ | Voltage |
| Tc(℃) | Rn(Ω) | It(mA) | Ih(mA) | Imax(A) | Vmax(V) | Dmax | Hmax |
| LKMZB-03I202-302R | 85±7 | 2500 | 16 | 3 | 0.2 | 420 | 4.0 | 5 |
| LKMZB-03I102-202R | 85±7 | 1500 | 18 | 4 | 0.2 | 420 | 4.0 | 5 |
| LKMZB04I801-122R | 85±7 | 1000 | 25 | 6 | 0.2 | 420 | 4.5 | 5 |
| LKMZB-04I501-801R | 85±7 | 650 | 28 | 7 | 0.2 | 420 | 4.5 | 5 |
| LKMZB-04I301-501R | 85±7 | 400 | 32 | 8 | 0.2 | 420 | 4.5 | 5 |
| LKMZB-04M101-202R | 105±7 | 1500 | 25 | 6 | 0.2 | 420 | 4.5 | 5 |
| LKMZB-04M801-122R | 105±7 | 1000 | 28 | 8 | 0.2 | 420 | 4.5 | 5 |
| LKMZB-04M501-801R | 105±7 | 650 | 30 | 10 | 0.2 | 420 | 4.5 | 5 |
| LKMZB-06S102-202R | 115±7 | 1500 | 30 | 10 | 0.3 | 420 | 6.5 | 5 |
| LKMZB-06S801-122R | 115±7 | 1000 | 35 | 12 | 0.3 | 420 | 6.5 | 5 |
| LKMZB-06S601-901R | 115±7 | 750 | 42 | 14 | 0.3 | 420 | 6.5 | 5 |
| LKMZB-06S501-801R | 115±7 | 650 | 45 | 15 | 0.3 | 420 | 6.5 | 5 |
| LKMZB-06S401-601R | 115±7 | 500 | 50 | 16 | 0.3 | 420 | 6.5 | 5 |
| LKMZB-06S201-401R | 115±7 | 300 | 60 | 20 | 0.3 | 420 | 6.5 | 5 |
| LKMZB-06S151-251R | 115±7 | 200 | 75 | 25 | 0.3 | 265 | 6.5 | 5 |
| LKMZB-06S101-201R | 115±7 | 150 | 80 | 28 | 0.3 | 265 | 6.5 | 5 |
| LKMZB-06S900-151R | 115±7 | 120 | 90 | 30 | 0.3 | 265 | 6.5 | 5 |
| LKMZB-06M600-100R | 105±7 | 80 | 100 | 32 | 0.3 | 265 | 6.5 | 5 |
| LKMZB-06M400-800R | 105±7 | 60 | 120 | 35 | 0.3 | 265 | 6.5 | 5 |
| LKMZB-08S301-501R | 115±7 | 400 | 80 | 20 | 0.8 | 420 | 8 | 5 |
| LKMZB-08S201-301R | 115±7 | 250 | 80 | 25 | 0.8 | 420 | 8 | 5 |
| LKMZB-08S151-251R | 115±7 | 200 | 100 | 28 | 0.8 | 420 | 8 | 5 |
| LKMZB-08S900-151R | 115±7 | 120 | 120 | 35 | 0.8 | 420 | 8 | 5 |
| LKMZB-08S600-101R | 115±7 | 80 | 140 | 40 | 0.8 | 420 | 8 | 5 |
| LKMZB-08S400-800R | 115±7 | 60 | 160 | 50 | 0.8 | 265 | 8 | 5 |
| LKMZB-08S300-500R | 115±7 | 40 | 180 | 60 | 0.8 | 265 | 8 | 5 |
| LKMZB-10S300-500R | 115±7 | 40 | 200 | 70 | 3 | 265 | 9 | 5 |
| LKMZB-10S200-300R | 115±7 | 25 | 250 | 80 | 3 | 265 | 9 | 5 |
| LKMZB-13S200-300R | 115±7 | 25 | 300 | 100 | 4 | 265 | 13 | 5 |
| LKMZB-13S100-200R | 115±7 | 15 | 360 | 120 | 4 | 265 | 13 | 5 |
| LKMZB-16S200-300R | 115±7 | 25 | 360 | 120 | 8 | 265 | 16 | 5 |
| LKMZB-16S100-200R | 115±7 | 15 | 420 | 140 | 8 | 265 | 16 | 5 |
| LKMZB-16S080-150R | 115±7 | 12 | 420 | 160 | 8 | 265 | 16 | 5 |
Note: Various types of products can be customized according to
customer requirements, and the maximum non-operating current value
can reach 400mA@60℃.
PTC Thermistor for Overload Over-current Protection 265V/250V
Series Data
| Part number | Resistance
@25C
R25
(OHM) | Non-trip
current
Int(mA) | Trip current
@25C
It
(mA) | Max.
operating
voltage
Vmax
(V) | Max.
current
Imax
(A) | Reference
temperature
Tref
(Centigrade) | Dimension
(mm) |
| @25C | @60C | Dmax | Tmax | Φd |
| MZ11-20P3R7H265 | 3.7 ohm | 530mA | 430mA | 1050mA | 265V | 4.3A | 120C | 22.0 | 5.0 | 0.6 |
| MZ11-16P6R0H265 | 6.0 ohm | 390mA | 300mA | 780mA | 265V | 3.1A | 17.5 | 5.0 | 0.6 |
| MZ11-16P7R0H265 | 7.0 ohm | 350mA | 280mA | 700mA | 265V | 3.1A | 17.5 | 5.0 | 0.6 |
| MZ11-13P10RH265 | 10 ohm | 260mA | 200mA | 520mA | 265V | 1.8A | 14.0 | 5.0 | 0.6 |
| MZ11-13P12RH265 | 12 ohm | 225mA | 180mA | 450mA | 265V | 1.8A | 14.0 | 5.0 | 0.6 |
| MZ11-12P10RH265 | 10 ohm | 250mA | 200mA | 500mA | 265V | 1.8A | 13.5 | 5.0 | 0.6 |
| MZ11-12P101H265 | 100 ohm | 50mA | 40mA | 100mA | 265V | 1.8A | 13.5 | 5.0 | 0.6 |
| MZ11-10P15RH265 | 15 ohm | 180mA | 140mA | 350mA | 265V | 1.2A | 11.0 | 5.0 | 0.6 |
| MZ11-10P39RH265 | 39 ohm | 130mA | 100mA | 250mA | 265V | 1.2A | 11.0 | 5.0 | 0.6 |
| MZ11-08P15RH250 | 15 ohm | 150mA | 120mA | 300mA | 250V | 0.8A | 9.0 | 5.0 | 0.6 |
| MZ11-08P25RH265 | 25 ohm | 130mA | 100mA | 250mA | 265V | 0.8A | 9.0 | 5.0 | 0.6 |
| MZ11-08P35RH265 | 35 ohm | 115mA | 90mA | 225mA | 265V | 0.8A | 9.0 | 5.0 | 0.6 |
| MZ11-08P45RH265 | 45 ohm | 105mA | 80mA | 200mA | 265V | 0.8A | 9.0 | 5.0 | 0.6 |
| MZ11-08P55RH265 | 55 ohm | 90mA | 70mA | 180mA | 265V | 0.8A | 9.0 | 5.0 | 0.6 |
| MZ11-07P82RH265 | 82 ohm | 70mA | 50mA | 140mA | 265V | 0.6A | 8.0 | 5.0 | 0.6 |
| MZ11-07P56RH265 | 56 ohm | 90mA | 60mA | 175mA | 265V | 0.6A | 8.0 | 5.0 | 0.6 |
| MZ11-06P33RH250 | 33 ohm | 110mA | 85mA | 200mA | 250V | 0.4A | 7.0 | 4.5 | 0.6 |
| MZ11-05P70RH265 | 70 ohm | 65mA | 50mA | 130mA | 265V | 0.3A | 6.5 | 5.0 | 0.6 |
| MZ11-05P85RH265 | 85 ohm | 60mA | 45mA | 120mA | 265V | 0.3A | 6.5 | 5.0 | 0.6 |
| MZ11-05P39RH250 | 39 ohm | 80mA | 65mA | 160mA | 250V | 0.2A | 6.5 | 5.0 | 0.6 |
| MZ11-05P121H265 | 120 ohm | 45mA | 35mA | 90mA | 265V | 0.3A | 6.5 | 5.0 | 0.6 |
| MZ11-05P181H265 | 180 ohm | 40mA | 30mA | 80mA | 265V | 0.3A | 6.5 | 5.0 | 0.6 |
| MZ11-04P70RH250 | 70 ohm | 50mA | 40mA | 100mA | 250V | 0.2A | 5.5 | 5.0 | 0.6 |
| MZ11-04P121H265 | 120 ohm | 40mA | 30mA | 80mA | 265V | 0.2A | 5.5 | 5.0 | 0.6 |
| MZ11-03P151H250 | 150 ohm | 40mA | 30mA | 75mA | 250V | 0.2A | 4.5 | 5.0 | 0.5 |
| MZ11-10N12RH250 | 12 ohm | 170mA | 130mA | 340mA | 250V | 1.2A | 100C | 11.0 | 5.0 | 0.6 |
| MZ11-10N18RH265 | 18 ohm | 145mA | 110mA | 290mA | 265V | 1.2A | 11.0 | 5.0 | 0.6 |
| MZ11-10N22RH265 | 22 ohm | 125mA | 90mA | 250mA | 265V | 1.2A | 11.0 | 5.0 | 0.6 |
| MZ11-07N22RH250 | 22 ohm | 120mA | 90mA | 225mA | 250V | 0.5A | 8.0 | 5.0 | 0.6 |
| MZ11-05N151H265 | 150 ohm | 38mA | 30mA | 80mA | 265V | 0.3A | 6.5 | 5.0 | 0.6 |
| MZ11-05N301H265 | 300 ohm | 27mA | 20mA | 55mA | 265V | 0.3A | 6.5 | 5.0 | 0.6 |
| MZ11-05N601H265 | 600 ohm | 20mA | 15mA | 40mA | 265V | 0.2A | 6.5 | 5.0 | 0.6 |
| MZ11-05N102H265 | 1000 ohm | 15mA | 12mA | 30mA | 265V | 0.2A | 6.5 | 5.0 | 0.6 |
| MZ11-04N151H265 | 150 ohm | 36mA | 28mA | 80mA | 265V | 0.3 | 5.5 | 5.0 | 0.6 |
| MZ11-03N151H265 | 150 ohm | 33mA | 25mA | 65mA | 265V | 0.2A | 4.5 | 5.0 | 0.5 |
| MZ11-03N101H250 | 100 ohm | 40mA | 30mA | 80mA | 250V | 0.2A | 4.5 | 5.0 | 0.5 |
| MZ11-03N70RH250 | 70 ohm | 45mA | 35mA | 90mA | 250V | 0.1A | 4.5 | 5.0 | 0.5 |
| MZ11-08M12RH250 | 12 ohm | 120mA | 70mA | 220mA | 250V | 0.8A | 80C | 9.0 | 5.0 | 0.6 |
| MZ11-08M25RH265 | 25 ohm | 85mA | 50mA | 170mA | 265V | 0.8A | 9.0 | 5.0 | 0.6 |
| MZ11-08M35RH265 | 35 ohm | 80mA | 50mA | 150mA | 265V | 0.8A | 9.0 | 5.0 | 0.6 |
| MZ11-08M50RH265 | 50 ohm | 60mA | 40mA | 120mA | 265V | 1.0A | 9.0 | 5.0 | 0.6 |
| MZ11-07M101H265 | 100 ohm | 50mA | 30mA | 100mA | 265V | 0.6A | 8.0 | 5.0 | 0.6 |
| MZ11-05M70RH250 | 70 ohm | 50mA | 30mA | 100mA | 250V | 0.3A | 6.5 | 5.0 | 0.6 |
| MZ11-05M121H265 | 120 ohm | 30mA | 20mA | 60mA | 265V | 0.3A | 6.5 | 5.0 | 0.6 |
| MZ11-03M101H250 | 100 ohm | 25mA | 18mA | 55mA | 250V | 0.2A | 4.5 | 5.0 | 0.5 |
| MZ11-03M151H265 | 150 ohm | 22mA | 15mA | 45mA | 265V | 0.2A | 4.5 | 5.0 | 0.5 |
Conventional product electrical performance parameters Part No. | R25℃ (KΩ) | B(K) 25/50℃ | Rated Power @25℃(mW) | Dissipation Factor(δ) (mW/℃) | Thermal time Constant (S) |
TS502□3274A | 5.0 | 3274 | 10-20 | 2-4 | 5-20 |
TS502□3435B | 5.0 | 3435 | 10-20 | 2-4 | 5-20 |
TS502□3470A | 5.0 | 3470 | 10-20 | 2-4 | 5-20 |
TS502□3950A | 5.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS103□3274A | 10.0 | 3274 | 10-20 | 2-4 | 5-20 |
TS103□3435B | 10.0 | 3435 | 10-20 | 2-4 | 5-20 |
TS103□3470A | 10.0 | 3470 | 10-20 | 2-4 | 5-20 |
TS103□3950A | 10.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS103□4100A | 10.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS153□3950A | 15.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS153□4100A | 15.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS203□3950A | 20.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS203□4100A | 20.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS223□4200A | 22.0 | 4200 | 10-20 | 2-4 | 5-20 |
TS403□3928A | 40.0 | 3928 | 10-20 | 2-4 | 5-20 |
TS503□3950A | 50.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS503□4100A | 50.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS104□3950A | 100.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS104□4100A | 100.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS104□4400A | 100.0 | 4400 | 10-20 | 2-4 | 5-20 |
APPLICATION:
| 1. | switch power supply |
| 2. | transformer, adaptor, charger |
| 3. | electric coils, control panel |
| 4. | house appliance(A/C,micro oven) |
| 5. | electronic ciruit |
| 6. | instrument |
h
Contact Details:
Nancy Huang
Email: huangju@lk-ptc.
Tel/Whatsapp: +86 13423305709
Wechat: LinKun＿Nancy2013
QQ: 1078049901
Competitive Advantage:
Factory supply directly
Completed certificates such as UL,VDE,SGS,etc and high quality
available
Quick delivery
Best after-sales services
OEM & ODM available
