NTC Negative Temperature Coefficient Thermistor 20D-5 20 Ohm 20% 5mm 0.6A THT Radial
Introduction Of The Negative Temperature Coefficient Thermistor 20D-5
NTC or Negative Temperature Coefficient Thermistors are typically used for in-rush current limiting and sensing applications. (As and NTC thermistor temperature increases its resistance decreses.) For in-rush applications this attribute is used to reduce current surges to circuits thereby reducing the probability to tripped crcuite breakers and blown fuses or damage to motors or filaments.
For sensing applications this attribute allows for the compensation fo changes in circuit resitances brought about by variations in the ambient temperature.
Features Of The Negative Temperature Coefficient Thermistor 20D-5
Small size , Strong power and strong capability of surge current protection.
Fast response to surge current.
Big material constant(B value), Small remain resistance.
Longevity of service, High reliability.
Integral series , Extensive operating range
Silicon Epoxy Coating, Copper Leads
RoHS Compliant
Application Of The Negative Temperature Coefficient Thermistor 20D-5
.
Convension power supply , switch power , kinds of electric heater , energy-saving lamps , electronic ballast etc .
All kinds of power circuit protection of electronic equipments , filament protection of RT, display, bulb, lighting lamps .
Operating Temperature Of The Negative Temperature Coefficient Thermistor 20D-5
| Size | Operating Temperature Range |
| φ5mm | -40℃ ~ 155℃ |
| φ7mm/φ9mm/φ11mm | -40℃ ~ 175℃ |
| φ13mm/φ15mm/φ20mm | -40℃ ~ 200℃ |
Storage Temperature:15℃~35℃
Endurance test Of The Negative Temperature Coefficient Thermistor 20D-5
| No. | Item | Test method and condition | Specification |
| 1 | Endurance at room temperature with applied continuous maximum current | Current:7A Time:1000h | No visible damage │Δ R/R│≤20% |
| 2 | Storage in dry heat | Temperature:+155℃ Time:1000h Storage at upper category temperature | No visible damage │Δ R/R│≤20% |
Specification Of The Negative Temperature Coefficient Thermistor 20D-5
| P/N | D | T | d | F | L |
| Tin-plated copper wire | Tin-plated steel wire | Normal | Cutting |
| MF72 16D-5 | ≤7 | ≤4.5 | 0.55±0.06 | 0.5±0.06 | 5.0±1.0 | ≥25 | Customization |
| P/N | Rated zero power resistance
@25C(Ohm) | Max stable current
@25C(A) | Residual resistance
at max current
@25C(A) | B25/85(K) | Thermal time constant(s) | Dissipation factor(mw/C) | Certification | Operating temperature |
| MF72 20D-5 | 20 | 0.6 | 2.020 | 2800 | ≤18 | ≥6 | -40~155 | UL |
Series Parameters Of The Negative Temperature Coefficient Thermistor 20D-5
| P/N | Rated zero power resistance
@25C(Ohm) | Max stable current
@25C(A) | Residual resistance
at max current
@25C(A) | B25/85(K) | Thermal time constant(s) | Dissipation factor(mw/C) | Certification | Operating temperature |
| 5D-5 | 5 | 1 | 0.584 | 2700 | ≤18 | ≥6 | -40~150 | CQC UL CUL TUV |
| 6D-5 | 6 | 0.7 | 0.675 | 2700 | ≥6 | -40~150 | TUV |
| 7D-5 | 7 | 0.7 | 0.766 | 2700 | ≥6 | -40~150 | TUV |
| 8D-5 | 5 | 0.7 | 0.857 | 2700 | ≥6 | -40~150 | TUV |
| 10D-5 | 10 | 0.7 | 1.039 | 2700 | ≥6 | -40~150 | CQC UL CUL TUV |
| 12D-5 | 12 | 0.6 | 1.235 | 2800 | ≥6 | -40~150 | TUV |
| 15D-5 | 15 | 0.6 | 1.530 | 2800 | ≥6 | -40~150 | CQC UL CUL TUV |
| 16D-5 | 16 | 0.6 | 1.628 | 2800 | ≥6 | -40~150 | TUV |
| 18D-5 | 18 | 0.6 | 1.824 | 2800 | ≥6 | -40~150 | TUV |
| 20D-5 | 20 | 0.6 | 2.020 | 2800 | ≥6 | -40~150 | CQC UL CUL TUV |
| 22D-5 | 22 | 0.6 | 2.060 | 2800 | ≥6 | -40~150 | CQC UL CUL TUV |
| 25D-5 | 25 | 0.5 | 2.123 | 2800 | ≥6 | -40~150 | TUV |
| 30D-5 | 30 | 0.5 | 2.227 | 2800 | ≥6 | -40~150 | CQC UL CUL TUV |
| 33D-5 | 33 | 0.5 | 2.436 | 2800 | ≥6 | -40~150 | CQC UL CUL TUV |
| 50D-5 | 50 | 0.4 | 2.653 | 3000 | ≥6 | -40~150 | CQC UL CUL TUV |
| 60D-5 | 60 | 0.3 | 2.753 | 3000 | ≥6 | -40~150 | CQC UL CUL TUV |
| 200D-5 | 200 | 0.1 | 18.7 | 3000 | ≥6 | -40~150 | UL |
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NTC Negative Temperature Coefficient Thermistor 20D-5 20 Ohm 20% 5mm 0.6A THT Radial Images
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