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Brass Ntc 10k 3950 Stainless Temperature 1% Sensor Waterproof
Thermistor Probe
NTC temperature sensor is a kind of thermistor and probe. Its
principle is: the resistance value drops rapidly as the temperature
rises. It usually consists of 2 or 3 metal oxides, mixed in a
fluid-like clay, and calcined in a high-temperature furnace to form
a dense sintered ceramic. Actual size is very flexible, they can be
as small as 0.010 inches or very small diameter. There is almost no
limit to the maximum size, but usually under half an inch
applies. NTC temperature sensor is connecting high precision,
high reliable NTC thermistor with wires , encapsulated with
insulation, thermal conductivity, waterproof material into the
required shape, It's easyly to install and remote measurement and
control temperature.
NTC temperature sensor is a type of thermistor. The resistance
value of the NTC temperature sensor can drop rapidly as the
temperature rises. It is widely used in household appliances. Next,
Seiko Welding introduces the characteristics of the NTC temperature
sensor.
Features:
1. Packaged with high-precision and high-sensitivity components,
with stable performance and fast response
2. Flat contact temperature sensing, more accurate measurement;
3. High heat conduction aluminum oxide shell seal, temperature
sensing and heat transfer faster;
4. It is packaged with insulating materials that meet the
requirements, and the finished product is safer for voltage
insulation.
Applications of NTC thermistor temperature sensors:
| Sensor Type | NTC: 5K, 10K, 20K, 50K, 100K, customized | |
| Operating Temperature | -20~120°C, -30~250°C,-40~350°C, customized | |
| Resistance Tolerance | 0.5%, 1%, 2%, 3%, 5% | |
| Housing Size | customized | |
| Housing Material | nickel-clad copper, brass, stainless steel, aluminum, customized | |
| Wire | Teflon wire, PVC wire, Silicone wire, customized | |
| Wire Length | customized | |
| Special Requirement | Waterproof, anticorrosion, or others |
Advantages and characteristics of Auto Temperature Sensor
Reliability Test
| Test Item | Test Standard | Test method | Performance requirements |
| Zero Power Resistance | IEC 60539-1 | Immerse samples in the constant temperature bath at 25℃±0.005℃,test steady resistance | Resistance tol ±1% |
| B value | IEC60539-1 | Immerse samples in the constant temperature bath at 25℃,50℃(or 85℃), test steady resistance,and calculate B value | Resistance tol ±1% |
| Free fall | IEC60068-2-32 | Fall height: 1.5±0.1m,Surface: Cement , 1 time | No obvious damage, R25 △R/R≤±1% |
| Insulation | IEC60539-1 | 500V pressure on insulation shell test insulation resistance | >500MOhm |
| Withstand voltage | IEC60539-1 | Withstand voltage: 1500V/AC ,Leakage current:2mA Lasting: 60sec | No obvious damage |
| Tension | IEC60068-2-21 | Pull uniform speed at the end, F>4.0KG(requested by customer) | No obvious damage, R25 △R/R≤±1% |
| Vibration | Q/HBm 108-94 | Test frequency: 10~500Hz,swing: 1.2mm acceleration: 30m/s2 Direction X,Y,Z Time:8Hour/direction | No obvious damage, R25 △R/R≤±1% |
| Steady humidity and heat | IEC60068-2-78 | Temp:40±2℃ Humidity:92-95%RH Time:1000±24Hour | No obvious damage, R25 △R/R≤±1% |
| Thermal time constant | EC60539-1 | Immerse in 25℃ water,after thermal balance,immerse in 85℃,resistance arrives 63.2%,calculate total time | <10 sec |
| High temperature storage | IEC60068-2-2 | Temp:125℃±5℃ Time: 1000±24Hour | No obvious damage, R25 △R/R≤±1% |
| Cold and thermal shock | IEC60068-2-14 | -40℃~+125℃ T1:30min Cycle time:1000 | No obvious damage, R25 △R/R≤±1% |
| Knock experiment | IEC60068-2-77 | Acceleration:250m/s2 Pulse lasting: 6ms Knock times: 1000 Recovery
time: 2 Hour | No obvious damage, R25 △R/R≤±1% |
| Low temperature storage | IEC60068-2-1 | Temp: 40±2℃ Time: 1000±24Hour | No obvious damage, R25 △R/R≤±1% |
| Salt spray | IEC60068-2-11 | Temp: 35±2℃ Collection hour : 1.0mL~2.0mL Time: determine per as actual demand | No obvious damage, R25 △R/R≤±1% |
