Resettable Fuse PTC Type Thermistor As Inrush Current Limiter 50R ±25% 120C 380V
Features Of The PTC Type Thermistor
- Leaded disks ceramic PTC
- Inrush Current Limiter
- Over Current Protection
- RoHS compliant
- Disc and leaded type
- Voltage rating:12Vac~1000Vac
- Resistance range: 0.3Ω~10KΩ
- Stable over a long time
Recommended Applications Of The PTC Type Thermistor
1. Home appliance
2. Electrical equipment (Electrical machinery, transformer, electric meter)
Product Dimensions Of The PTC Type Thermistor (mm)
| Type | Dmax | Hmax | hmax | F | L | d |
| MZB-13S500RH | 13.0 | 7.0 | 16.5 | 5±1 | 3.5±0.5 | 0.6±0.05 |
Electrical Characteristics Of The PTC Type Thermistor
| 1 | Max. operating voltage | Vmax | 280VAC |
| 2 | Max. DC link voltage | Vlink, max | 400VDC |
| 3 | Rated resistance | R25 | 50Ω |
| 4 | Resistance tolerance | ΔR | ±25% |
| 5 | Reference temperature (typ.) | TRef | 120℃±10 ℃ |
| 6 | Hold current @ 25℃ | Ih | 87mA |
| 7 | Trip current @ 25℃ | It | 173mA |
| 8 | Max. current | Imax | 2A |
| 9 | Max. continuous Voltage | Vr | 380VAC |
| 10 | Operating temperature range (V=0) | Top(0) | -40/+125℃ |
| 11 | Operating temperature range (V=Vmax) | Top(Vmax) | -20/85℃ |
| 12 | Packing | 500pcs/bag | Bulk |
Inspection request Of The PTC Type Thermistor
1. Approve the check program ought to be as to the appraisal according to 7.4th stipulation of GB/T7153's.
2. As to the quality conforming inspection , tests the schedule , and consists of the sampling and cycle and
astringent and demand , the formation of inspection lot , according to requires norm GB/T7153 7.6.1 to regulate .
Reliability Of The PTC Type Thermistor
| Test | Standard | Test condition | |ΔR25/R25 | |
| Electrical endurance,cycling | | Room Temperature,Vlink,max
applied energy<Cth(Tref-TA)
Number of cycles:100000 | <25% |
| Electrical endurance,constant | IEC 60738-1 | Storage at Vmax/Top,max(Vmax)
Test duration:1000h | <25% |
| Damp heat | IEC 60738-1 | Temperature of air:40℃
Relative humidity of air:93%
Duration:56 days
Test according to IEC 60068-2-78 | <10% |
| Rapid change of temperature | IEC 60738-1 | T1=Top,min(0V),T2=Top,max(0V)
Number of cycles:5
Test duration:30min
Test according to IEC 60068-2-14,Test Na | <10% |
| Vibration | IEC 60738-1 | Frequency range:10 to 55 Hz
Displacement amplitude:0.75mm
Test duration:3×2h
Test according to IEC 60068-2-6,Test Fc | <5% |
| Climatic sequence | IEC 60738-1 | Dry heat:T=Top,max(0V)
Test duration:16h
Damp heat first cycle
Cold:T=Top,min(0V)
Test duration:2h
Damp heat 5 cycles
Tests performed according to IEC 60068-2-30 | <10% |
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Resettable Fuse PTC Type Thermistor , Inrush Current Limiter 50R ±25% 120C 380V Images
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