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Specifications
Resistance @ 25℃:
47Ω
Power(Watts):
-
Pitch:
7.5mm
Operating Temperature:
-40℃~+200℃
B Constant (25℃/100℃):
-
Tolerance:
±20%
Steady State Current (Max):
3A
Diameter (φD):
15mm
Thermal Time Constant:
1.25min
B Constant (25℃/85℃):
-
B Constant (25℃/75℃):
-
B Constant Tolerance:
-
B Constant (25℃/50℃):
-
Mfr. Part #:
206RV187
Package:
Through Hole,P=7.5mm
Key Attributes
Model Number:
206RV187
Product Description
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 designed for applications requiring precise temperature sensing and control.
Product Attributes
- Wrapper Material: Phenolic aldehyde
- Down-lead Material: Tinned Electron Wire
- Coating Color: Black
Technical Specifications
| Item | Specification Request | Test Conditions | Specification Request |
| Performance Specification | |||
| Nominal Resistance (251) | 4720% | ||
| Max Steady State Current (25) | 3A | ||
| Thermal Time Constant (approx.) | 75S | ||
| Thermal Dissipation Constant (approx.) | 21mW | ||
| Operation Range | -40~+200 | ||
| Approximate resistance value at maximum current | 0.68 | ||
| Max Shock Capacity | 330f/240V | ||
| Electrical Properties and Requirements | |||
| Zero Power Resistance | See Electrical Parameters | At 25, when the resistance change caused by the internal heat of the resistor body can be ignored relative to the total measurement error. | See Electrical Parameters |
| B Value | See Electrical Parameters | Calculated using the zero Power resistance value at 25 and 50. | See Electrical Parameters |
| Thermal Dissipation Constant | See Electrical Parameters | The ratio of the change of the dissipation power to the corresponding change of the temperature at specified temperature. Unit: mw/ | See Electrical Parameters |
| Thermal Time Constant | See Electrical Parameters | Under zero power condition, the time required by a thermistor for its body temperature to reach 63.2% of the difference between its initial and final temperature. | See Electrical Parameters |
| Leads Terminal Tensile Strength | No break out and damage, Resistance change: within 20% | Apply a 1.0kg load to each lead terminal for 10 seconds. | |
| Leads Terminal Bend Strength | No break out and damage, Resistance change: within 20% | Fix the resistor body and hang 0.5kg on one terminal, bend 90; then straighten, then bend 90 in the opposite direction. | |
| Vibration | No substantial damage | Frequency: 10~50Hz, Amplitude: 1.55mm, Direction and time: X, Y and Z axes each for 2 hours. | |
| Solderability | Covered termination: 98% | Solder bath Temperature: 2355, Time: 3S | |
| Solder Heat Resistance | Resistance change: within 10% | Dip the lead wire into molten solder of 35010 for 3.00.5 seconds, at a depth of 4.00.8mm. After the specimen is left at room ambient temperature for 24 hours, the resistance shall be measured. | |
| Dry Heat (High Temperature Storage) | Resistance change: within 10% | Subject specimen to an ambient of 1252 for 1000+48 hours. After the specimen is left at room ambient for 1 to 2 hours, the resistance shall be measured. | |
| Cold (Low Temperature Storage) | Resistance change: within 10% | Subject specimen to an ambient of -403 for 1000+48 hours. After the specimen is left at room ambient for 1 to 2 hours, the resistance shall be measured. | |
| Humidity Test (Steady State) | Resistance change: within 10% | 402, 95% RH, 1000HR | |
| Temperature Cycle Test | Resistance change: within 20% | -40/30 25/5 +125/30 25/5 | |
| Operating Temperature | -40~+200 | Allowable temperature range while the thermistor works continuously for long time. | |
| Storage Conditions | -10~40, RH75% |
2504211835_KNSCHA-206RV187_C48392709.pdf
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