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Company address: 146B-101 Chunfeng Road, Longbeiling, Tangxia Town, Dongguan City
Mobile/WeChat:13713053585
Enterprise E-mail:2649073675@qq.com
Huaju Electronics overcurrent protection PTC thermistor is mainly used for overcurrent and overheating protection of [transformer (adapter)/primary coil/charger/digital multimeter/smart meter/micromotor/transistor], etc., and is directly connected in series with the load In the circuit, when an abnormal condition occurs on the line, it can automatically limit the overcurrent or block the current. When the fault is eliminated, it will return to its original state. It is commonly known as the "10,000-time fuse".
Classification:
Overcurrent protection PTC thermistor
Service Support:
137 1305 3585
- 产品描述
- 产品规格及参数
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Hua Ju Electronics is a professional PTC thermistor manufacturer. The over-current protection PTC produced by Hua Ju Electronics is widely used in various electronic products. The PTC thermistor for over-current protection is an automatic protection against abnormal temperature and abnormal current. The restored protective element is commonly known as "resettable fuse" and "ten thousand times fuse". It replaces the traditional fuse and can be widely used for overcurrent and overheating protection of motors, transformers, switching power supplies, electronic circuits, etc. The PTC thermistor for overcurrent protection limits the consumption in the entire circuit through its sudden change in resistance to reduce the residual current value. . Traditional fuses cannot recover by themselves after the line is blown, while PTC thermistors for overcurrent protection can return to the pre-protection state after the fault is removed, and can realize their overcurrent and overheating protection functions when a fault occurs again.
1. Application scope:
Huaju Electronics overcurrent protection PTC thermistor is mainly used for overcurrent and overheating protection of [transformer (adapter)/primary coil/charger/digital multimeter/smart electricity meter/micromotor/transistor], etc., and is directly connected in series with the load In the circuit, when an abnormal condition occurs on the line, it can automatically limit the overcurrent or block the current. When the fault is eliminated, it will return to its original state. It is commonly known as the "10,000-time fuse".
2. Features:
·Contactless circuit and component protection·Automatic overcurrent limitation
·Automatic recovery after troubleshooting ·No noise or sparks during operation
·Reliable and easy to use
3. Application principle:
Connect the overcurrent protection PTC thermistor in series in the power circuit. When the circuit is in a normal state, the current flowing through the PTC is less than the rated current. The PTC is in normal state and has a very small resistance, which will not affect the electronic ballast (energy saving). normal operation of protected circuits such as lamps, transformers, and multimeters. When the circuit current greatly exceeds the rated current, the PTC suddenly heats up and the resistance suddenly increases to a high resistance state, thus limiting or blocking the current and protecting the circuit from damage. After the current returns to normal, the PTC also automatically returns to the low resistance state, and the circuit returns to normal operation.
Overcurrent protection PTC thermistors are used in overcurrent protection application fields such as [transformer (adapter)/primary coil/charger/digital multimeter/smart electricity meter/micromotor/transistor]. Nanjing Huaju relies on its scientific research and technology Taking advantages in other aspects, it was the first to launch the WMZ12A product featuring high withstand voltage (V≥300V AC).
3. Model name, appearance structure and dimensions:
Main technical parameters:
Communication equipment switch overcurrent and overload protectionmodel Rated resistance value No action current Operating current at maximum current Maximum current maximum voltage failure mode Dimensions R25（Ω） Int(mA) @25℃ action time (mm) ±20% @25℃ @40℃ It(mA) t(Sec) Imax(A) Vmax(V) Dmax Tmax Φd Painted lead type WMZ23-10RM130 10 130 100 260 <0.2 3.0 250 250V/10A 7.5 4.0 0.6 WMZ23-12RM130 12 130 100 260 <0.3 2.0 250 250V/10A 9.0 5.0 0.6 WMZ23-12RM090 12 90 80 160 <0.2 2.0 250 250V/10A 9.0 5.0 0.6 WMZ23-20RM100 20 100 80 200 <0.2 3.0 250 250V/10A 9.0 4.0 0.6 WMZ23-35RM090 35 90 75 180 <0.2 3.0 250 250V/5A 9.0 5.0 0.6 WMZ23-40RM080 40 80 70 160 <0.2 3.0 250 250V/5A 9.0 5.0 0.6 WMZ23-50RM070 50 70 60 150 <0.2 3.0 250 250V/5A 9.0 5.0 0.6 WMZ23-50RM075 50 75 60 150 <0.2 3.0 650 650V/10A 9.5 5.0 0.6 WMZ23-55RM070 55 70 60 150 <0.2 3.0 650 650V/10A 9.5 5.0 0.6 Uncoated lead type WMZ25-9ROM160 9 160 130 330 <0.8 3.0 250 250V/10A 10.2 4.5 0.6 WMZ25-25RM100 25 100 80 220 <0.2 3.0 250 250V/10A 6.6 4.0 0.6 WMZ25-25RM120 25 120 100 300 <0.4 3.0 250 250V/10A 8.2 4.0 0.6 The following is the SMD chip type WMZ26-10RM180SMD 10 180 140 36 <5.0 1.0 250 250V/10A / / / WMZ26-25RM130SMD 25 130 100 270 <0.3 3.O 250 250V/10A / / / WMZ26-50RM090SMD 50 90 70 190 <0.2 3.0 250 250V/10A / / / WMZ26-50RM100SMD 20 100 80 200 <0.2 3.0 250 250V/10A / / /
Main technical parameters:
Mainly used for instruments, instrument overload and over-current protectionmodel Rated resistance value No action current Operating current Maximum work Maximum current Curie temperature Dimensions R25（Ω） Int(mA) @25℃ Voltage (mm) ±30% @25℃ @60℃ It(mA) Vmax(V) Imax(A) Tc(℃) Dmax Tmax Φd Painted lead type WMZ12A-03M151N265 150 20 15 50 265 0.2 80 4.5 5.0 0.5 WMZ12A-03M102N265 1000 10 7 20 265 0.1 4.5 5.0 0.5 WMZ12A-03M152N265 1500 7 5 15 265 0.1 4.5 5.0 0.5 WMZ12A-04M45RN265 45 40 30 80 265 0.3 5.5 5.0 0.6 WMZ12A-05M601N420 600 20 16 40 420 0.2 6.5 5.0 0.6 WMZ12A-05M232N420 2300 8 6 17 420 0.1 6.5 5.0 0.6 WMZ12A-05M321N420 3100 5 4 13 420 0.1 6.5 5.0 0.6 WMZ12A-07M251N265 250 25 20 50 265 0.5 8.0 5.0 0.6 WMZ12A-07M112M550 1100 15 10 30 550 0.5 8.0 7.0 0.6 WMZ12A-08M12RN265 12 120 70 220 265 0.8 9.0 5.0 0.6 WMZ12A-03N151N265 150 30 25 60 265 0.2 100 4.5 5.0 0.5 WMZ12A-03N401N265 400 25 20 45 265 0.2 4.5 5.0 0.5 WMZ12A-05N751N420 750 25 20 45 420 0.2 6.5 5.0 0.6 WMZ12A-05P39RN265 39 85 70 170 265 0.4 120 6.5 5.0 0.6 WMZ12A-05P65RN265 65 70 60 140 265 0.4 6.5 5.0 0.6 WMZ12A-05P601N420 600 20 16 39 420 0.2 6.5 5.0 0.6 WMZ12A-05P122N550 1200 15 10 30 550 0.1 6.5 5.0 0.6 WMZ12A-05P152N550 1500 12 9 twenty four 550 0.1 6.5 5.0 0.6 Uncoated lead type WMZ12A-08P70RN420 70 64 50 127 420 1.4 120 8.5 7.0 0.6 WMZ12A-08P121N420 120 49 40 97 420 1.4 8.5 7.0 0.6 WMZ12A-08P151N420 150 43 35 86 420 1.4 8.5 7.0 0.6 WMZ12A-08P501N550 500 twenty four 19 48 550 1.0 8.5 7.0 0.6
Main technical parameters:
Overcurrent and overload protection of communication equipment distribution framemodel Rated resistance value No action current Operating current at maximum current Maximum current maximum voltage Dimensions R25（Ω） Int(mA) @25℃ action time (mm) ±20% @25℃ @40℃ It(mA) t(Sec) Imax(A) Vmax(V) Dmax Tmax Φd WMZ21 chip type WMZ21-18RM110 18 110 90 220 <0.15 3 250 5.5 1.5 / WMZ21-18RM125 18 125 110 250 <0.18 3 250 5.5 2.0 / WMZ21-18RM130 18 130 110 250 <0.18 3 250 6.2 2.0 / WMZ21-20RM085 20 85 70 170 <0.18 3 250 6.2 2.0 / WMZ21-18RM135 18 135 110 270 <0.20 3 250 6.6 2.0 / WMZ21-10RM150 10 150 130 350 <4.0 1 230 6.6 1.5 / Unpainted type WMZ25-25RM055 25 55 45 110 <0.4 1 230 5.3 4.0 0.6 WMZ25-25RM060 25 60 50 140 <0.4 1 230 5.3 4.0 0.6 WMZ25-25RM085 25 85 50 120 <0.7 1 230 5.3 4.0 0.6 WMZ25-20RM145 20 145 100 250 <0.2 3 250 6.6 4.0 0.6 WMZ25-10RM130 10 130 110 260 <4.0 1 230 6.6 4.0 0.6 WMZ25-10RM150 10 150 135 300 <7.0 1 230 8.2 4.0 0.6 WMZ25-18RM125 18 125 110 250 <1.0 1 230 5.5 4.0 0.6 Painted type WMZ23-18RM135 18 135 110 270 <0.2 3 250 7.5 4.5 0.6 WMZ23-18RM110 18 110 110 220 <0.2 3 250 9.0 4.5 0.6 WMZ23-20RM100 20 100 80 200 <0.2 3 250 9.0 4.5 0.6 WMZ23-25RM090 25 90 70 180 <0.2 3 250 9.0 4.5 0.6
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Address: Building 2, 126 Tianyuan Middle Road, Jiangning District, Nanjing
Tel: 025-52153215,52153380、52157721