Product Overview
NTC Thermistor is a Negative Temperature Coefficient Resistor whose resistance decreases as ambient temperature increases. It is manufactured from 2 or 4 types of metal oxides (iron, nickel, cobalt, manganese, copper) shaped and sintered at high temperatures. This model, NTC 5D-20, features a nominal resistance of 5, a chip diameter of 20mm, and a lead pitch of 10mm, with black coating and straight leads.
Product Attributes
- Wrapper Material: Phenolic aldehyde
- Lead Material: Tinned Electron Wire
- Coating Color: Black
Technical Specifications
| Item | Specification Request | Unit |
| Nominal Resistance (251) | 520% | |
| Max Steady State Current (25) | 7 | A |
| Thermal Time Constant (approx.) | 113 | S |
| Thermal Dissipation Constant (approx.) | 28 | mW/ |
| Operation Range | -40 to +200 | |
| Approximate Resistance at Max Current | 0.087 | |
| Max Shock Capacity (240V) | 820 | uF |
| Zero Power Resistance (25) | See Electrical Parameters | |
| B Value | See Electrical Parameters | |
| Thermal Dissipation Constant | See Electrical Parameters | mW/ |
| Thermal Time Constant | See Electrical Parameters | S |
| Lead Terminal Tensile Strength | No visible damage, Resistance change: 20% | |
| Lead Terminal Bend Strength | No visible damage, Resistance change: 20% | |
| Vibration | No substantial damage | |
| Solderability (2355, 3S) | Covered termination: 98% | |
| Solder Heat Resistance (35010, 3.00.5S) | Resistance change: 10% | |
| Dry Heat Storage (1252, 1000+48 hours) | Resistance change: 10% | |
| Cold Storage (-403, 1000+48 hours) | Resistance change: 10% | |
| Humidity Test (402, 95%RH, 1000HR) | Resistance change: 10% | |
| Temperature Cycle Test (-40/30 25/5 +125/30 25/5) | Resistance change: 20% | |
| Operating Temperature | -40 to +200 | |
| Storage Conditions | -10 to 40, RH75% |
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