NTC Power Thermistor – Inrush Current Limiter (12 Ohm, ±20%, 2-Pin)
- Negative Temperature Coefficient (NTC) for temperature sensing
- 12 Ohm Resistance at 25°C with ±20% tolerance
- 2-Pin Design for easy PCB or through-hole mounting
- Responsive to Temperature Changes for thermal protection and monitoring
- Ideal for Power Supplies, Chargers, and Temperature Control Circuits
10,00 EGP
Payment Methods:
Description
Protect your power supplies and sensitive electronic circuits from damaging start-up surges with this 12-Ohm NTC (Negative Temperature Coefficient) Power Thermistor. Designed specifically to act as an inrush current limiter, this component presents a high initial resistance of 12 Ohms when cold, effectively absorbing and suppressing the initial power spike when a device is turned on. As current flows and the thermistor warms up, its resistance drops rapidly to a negligible level, allowing normal operating current to pass with maximum efficiency and minimal power loss. Packaged in a durable, resin-coated 2-pin radial through-hole design, it is an essential safety component for custom high-power builds, motor drivers, and power supply repair.
Key Features
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Inrush Current Suppression: Effectively dampens dangerous start-up current spikes to protect sensitive downstream components like bridge rectifiers and filter capacitors.
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Negative Temperature Coefficient: The resistance decreases as the component heats up, ensuring high resistance during initial power-on and low resistance during continuous operation.
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High Reliability: Coated in a flame-retardant epoxy or silicone resin, providing excellent thermal resilience and long-term durability on the circuit board.
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Efficient Power Delivery: Once warmed to its operating temperature, the voltage drop across the thermistor is minimal, ensuring your circuit runs efficiently.
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Breadboard & PCB Ready: Features standard 2-pin radial leads for easy through-hole soldering on printed circuit boards or quick testing on a breadboard.
Technical Specifications
| Specification | Detail |
| Component Type | Power NTC Thermistor |
| Nominal Resistance ($R_{25}$) | 12 Ohms (at 25°C) |
| Resistance Tolerance | ±20% |
| Pin Count | 2 Pins |
| Package / Mounting Type | Radial Leaded / Through-Hole (DIP) |
| Coating Material | High-temperature phenolic or silicone resin |
| Primary Function | Inrush Current Limiting / Surge Protection |
Specification
General
| WeightWeight | 0,0000 g |
|---|---|
| Product Name | Thermistor NTC 12 Ohm 20% 2-Pin |
| Type | NTC (Negative Temperature Coefficient) Thermistor |
| Resistance | 12 Ω at 25°C |
| Tolerance | ±20% |
| Pins | 2-pin axial lead |
| Temperature Coefficient | Negative (resistance decreases as temperature increases) |
| Operating Temperature Range | -40°C to +125°C (typical, depends on model) |
| Maximum Power Dissipation | ~0.25 W (depends on size) |
| Material | Ceramic semiconductor |
| Color | Usually brown / blue body with two metal leads |
