SCK DSC Murata Silicone Coated NTC Thermistor 30D-5 30 Ohm 0.5A 5mm With Copper Wire
SCK DSC Murata Silicone Coated NTC Thermistor 30D-5 30 Ohm 0.5A 5mm With Copper Wire
Simple Description Of The Silicone Coated NTC Thermistor
A large current is generated at the moment of power-on → large current is suppressed → the body heats up → the body temperature rises → the current continues to pass → the balance point is reached → the resistance value drops to a very small (equivalent to a wire, the power consumption is very small) → the line works normally.
Features Of The Silicone Coated NTC Thermistor
* 5mm,8mm 10mm 13 mm 15mm 20mm 25mm Epoxy coated Disc Type.
* SURGE PROTECTORS of ceramic material are made from specially formulated metal oxide.
* The Power Thermistor is a device for suppressing inrush current to an electric circuit.
* The Power Thermistor in the circuits protects electric equipments from being damaged by limiting the inrush current.
The principle of power NTC suppressing surge current
Devices such as switching power supplies and transformers will generate a surge current that is many times higher than the normal operating current at the moment of startup. Using the zero-power resistance value of the power NTC thermistor to suppress the surge current at the moment of startup can make The inrush current at the moment of startup should not be too large.
After completing the function of suppressing the surge current, due to the continuous action of the current passing through it, as the temperature of the thermistor body increases, its resistance value will drop to a very small level, the power consumption can be ignored, and the voltage almost increases to the back equipment to ensure the normal operation of the line.
Product Use Of The Silicone Coated NTC Thermistor
UPS power supply
USB wiring board
Power adapter
Picture tube
Lighting fixture
Lighting distribution box
Ballast
Specification Of The Silicone Coated NTC Thermistor
| 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 |
MF73T Application Field Of The Silicone Coated NTC Thermistor
MF73T has outstanding advantages such as small size, large working current and small residual resistance, and is widely used in high-power electronic equipment.
AC compressor, starter;
electric vehicle charger;
frequency generator;
High-power motor controller, motor drive device;
High-power professional audio amplifier;
High-power servo motor driver;
High-power plasma welding and cutting machine;
nuclear magnetic resonance equipment;
high-power power supply;
High Power Toroidal Transformer............
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