15P 120C AC Circuit PTC 100 Ohm 25% MZ21 PTC Thermal Protection
Product Description
Product Detail
15P 120C AC Circuit PTC 100 Ohm 25% MZ21 PTC Thermal Protection
MZ21 PTC Thermistor 15P 100 OHM 25% 120C For Welding Machine Overcurrent Protection
I Description Of The MZ21 PTC Thermistor 15P 100 OHM 25% 120C
MZ21 Type Thermistor used for overcurrent protection in telecommunication and AC circuit.
II Overall Dimension Of The MZ21 PTC Thermistor 15P 100 OHM 25% 120C
Part No |
DMAX | W±1.0 | TMAX | Φd±0.05 |
MZ21- P101RNN | 15.0 | 5.0 | 7.0 | 0.8 |
III Characteristics Curve Of The MZ21 PTC Thermistor 15P 100 OHM 25% 120C
IV Electrical Performance Of The MZ21 PTC Thermistor 15P 100 OHM 25% 120C
part no |
rated resistance (25℃±1℃) |
switch temperature (±7℃) |
break down voltage Ac |
non-operating current (at 40℃) |
typical trip current |
Operating ambient temperature range |
MZ21-P101RNN | 100Ω±25% | 120℃ | 600 V | 100 mA | 200 mA | -10~+45℃ |
V Working Principle Of The MZ21 PTC Thermistor 15P 100 OHM 25% 120C
Connect the PTC thermistor in series in the load circuit. When the circuit is in normal working condition,the current through the PTC thermistor is less than the rated current. The PTC thermistor is in the normal state and the resistance is small, which will not affect the normality of the protected circuit. jobs. When the circuit fails, the current greatly exceeds the rated current (2 times of the normal working current), and the PTC thermistor suddenly heats up, showing a high resistance state, so that the circuit is in a relatively "off" state for protection purposes. When the fault is removed, the PTC thermistor automatically returns to a low impedance state and the circuit resumes normal operation.
VI Application Of The MZ21 PTC Thermistor 15P 100 OHM 25% 120C
Inverter welding machine is more and more popular in the world since technoloy required for manufacturing, however, good protection can assured inverter welding machine functioning well for long term. We can supply
all set of components for overcurrent protection / overvoltage protection. Below is lists we supplying our customers for your ref:
Varistor |
07D361K |
PTC Thermistor | 126A 15P 16P 16P5R0M265 08M12RM265 05M120-180 19P MZ72-18ROM MZ11-13N13-20 MZ12-16P2R1H140,MZ12-16P4R7H140,MZ11-16P5R0H265,MZ11-16P6R0H265,MZ11-16P7R0H265,MZ11-16P10RH265,MZ11-16P12RH265,MZ72-18RM |
NTC Thermistor | 2.5D-20 5D-20 8D-20 47D-15 2.5D-15 47D-20 |
Fuse |
Glass fuse/Ceramic fuse 3.6x10mm/5x20mm/6.35x31.8mm/10x38mm STP/SFP/BTC/BFC/BMT/BMF/PTU/PFU |
VII Manufacturing Process Of The MZ21 PTC Thermistor 15P 100 OHM 25% 120C
Weighing ⇒ Ball Milling ⇒ Presintering ⇒ Granulation ⇒ Forming ⇒ Sintering ⇒ Add electrode ⇒ Resistance
sorting ⇒ Pressure line ⇒ Package insulation ⇒ Assembly ⇒ Withstand voltage detection ⇒ Resistance
Inspection ⇒ Final inspection ⇒ Packaging ⇒ Put into warehouse .
VIII Other part number Of The MZ21 PTC Thermistor 15P 100 OHM 25% 120C
MZ11-10N12RH250,MZ11-10N18RH265,MZ11-10N22RH265,MZ11-10P15RH265,MZ11-10P39RH265
SPMZB-9H25RH265,SPMZB-9Z1R0H15,SPMZB-9Z1R2H15,SPMZB-9Z1R8H15
WMZ12A-10RM180,WMZ12A-10RM220,WMZ12A-12RM090,WMZ12A-12RM170,WMZ12A-15RM070,
WMZ12A-15RM130,WMZ12A-15RM145,WMZ12A-15RM160,WMZ12A-15RM200,WMZ12A-18RM150,
WMZ12A-20RM070,MZ212A-20RM085,MZ23-20RM100,MZ25-20RM145,WMZ12A-22RM100,
WMZ12A-22RM120,WMZ12A-22RM130,WMZ12A-22RM180,MZ25-25RM055,MZ25-25RM060,
WMZ12A-25RM065,MZ25-25RM085,MZ25-25RM100,MZ25-25RM120,WMZ12A-33RM110,WMZ12A-35RM060,
MZ23-35RM090,WMZ12A-39RM085,WMZ12A-39RM100,MZ23-40RM080,WMZ12A-47RM055,WMZ12A-47RM090,
WMZ12A-50RM060,MZ23-50RM070,MZ23-50RM075,WMZ12A-55RM060-MZ23-55RM070,WMZ12A-62RM050,
WMZ12A-62RM075,WMZ12A-68RM045,WMZ12A-68RM050,WMZ12A-68RM055,WMZ12A-68RM060,
WMZ12A-75RM045,WMZ12A-82RM040,WMZ12A-68RM060,WMZ12A-101M030,WMZ12A-101M035,
WMZ12A-101M040,WMZ12A-101M045,WMZ12A-101M050,WMZ12A-101M055,WMZ12A-121M030,
WMZ12A-121M035,WMZ12A-121M050,WMZ12A-151M025,WMZ12A-151M030,WMZ12A-151M035,
WMZ12A-151M040,WMZ12A-221M020,WMZ12A-221M025,WMZ12A-471M006,WMZ12A-681M005,
WMZ12A-102M004,WMZ12A-152M003,WMZ12A-222M002