Product Overview
NTC Thermistor is a Negative Temperature Coefficient Resistor whose resistance changes with ambient temperature changes. Thermistor comprises 2 or 4 kinds of metal oxides of iron, nickel, cobalt, manganese and copper, being shaped and sintered at high temperature. It is a type of resistor whose resistance decreases as temperature increases.
Product Attributes
- Wrapper Material: Phenolic aldehyde
- Down-lead Material: Tinned Electron Wire
- Coating Color: Black
Technical Specifications
| Item | Specification Request | Unit |
| Nominal Resistance (251) | 16 | 20% |
| Max Steady State Current (25) | 5 | A |
| Thermal Time Constant (approx.) | 113 | S |
| Thermal Dissipation Constant (approx.) | 28 | mW/ |
| Operation Range | -40~+200 | |
| Approximate Resistance Value at Maximum Current | 0.212 | |
| Max Shock Capacity | 470 | uf/240V |
| Zero Power Resistance | See Electrical Parameters | |
| B-Value | See Electrical Parameters | |
| Thermal Dissipation Constant | See Electrical Parameters | mW/ |
| Thermal Time Constant | See Electrical Parameters | S |
| Leads Terminal Tensile Strength | No break out and damage; Resistance change: within 20% | |
| Leads Terminal Bend Strength | No break out and damage; Resistance change: within 20% | |
| Vibration | No substantial damage | |
| Solderability (Tin bath Temp: 2355, Time: 3S) | Covered termination: 98% | |
| Solder Heat Resistance (35010, 3.00.5s) | Resistance change: within 10% | |
| Dry Heat (1252, 1000+48 hours) | Resistance change: within 10% | |
| Cold (-403, 1000+48 hours) | Resistance change: within 10% | |
| Humidity Test (402, 95%RH, 1000HR) | Resistance change: within 10% | |
| Temp Cycle Test (-40/30 25/5 +125/30 25/5) | Resistance change: within 20% | |
| Operating Temperature | -40~+200 | |
| Storage Conditions | -10~40, RH75% |
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