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| Categories | NTC Thermistor |
|---|---|
| Brand Name: | WS |
| Model Number: | WS-MFB-1002 |
| Certification: | SGS |
| Place of Origin: | Shenzhen of China |
| MOQ: | 1000pcs |
| Price: | Lowest price |
| Payment Terms: | T/T, Western Union,Paypal |
| Supply Ability: | 1000000pcs/day |
| Delivery Time: | 3-5 work days |
| Packaging Details: | plastic bag or reel + carton |
| Material: | Glass & chip |
| Resistance: | 10Kohm |
| B valule: | 3270/3435/3470/3550/3700/3950/3975K |
| Application: | Rice cooker, microwave oven, electric cooker |
| Body size: | Φ2mm X 4mm |
High Stability Glass Sealed NTC Thermistor 10Kohm / R DIP Type with body size 2x4mm
Recommended applications Rice cooker, microwave oven, electric cooker, coffee pot, electric blanket, soy sauce pot, toaster etc. Features: 1. Body size: Φ2mm X 4mm |
Characteristics:
| Part no. | Zero power resistance @ 25°C | Tolerance of R25 | B value | Tolerance of B value | Max. Power Dissipation At 25°C | Dissipation Factor | Thermal Time constant | Operating temperature range | |
| R25 (KΩ) | ( ±%) | (K) | (±%) | Pmax(mW) | δ(mW/°C) | τ(Sec.) | (°C) | ||
| WS-MFB－1002-3270 | 10 | 1,2,3,5,10 | 25/50 | 3270 | 1,2,3,5 | 100 | ≧2 | ≦9 | -40～+300 |
| WS-MFB－1002-3435 | 10 | 25/85 | 3435 | ||||||
| WS-MFB－1002-3470 | 10 | 25/85 | 3470 | ||||||
| WS-MFB－1002-3550 | 10 | 25/50 | 3550 | ||||||
| WS-MFB－1002-3700 | 10 | 25/85 | 3700 | ||||||
| WS-MFB－1002-3950 | 10 | 25/50 | 3950 | ||||||
| WS-MFB－1002-3975 | 10 | 25/85 | 3975 | ||||||
Ps.:can be tailored according to clients’ demand
operating current:
In order to make the test more accurate, the running current should
be as less as possible. The following formula is suggested:
I＝sqrt(0.005δT^2/(B*R))
PS.:1.sqrt is for square root
2. δ is for dissipation constant in mW/℃
3. T is for temperature in Kelvins
4.B is for the index of the thermal sensitivity
5.R is for zero-power resistance in KOHM
6.final current is in mA
Reliability test:
| No. | item | standard | Test conditions | specifications | ||||
| 1 | Low temperature storage | IEC 60068-2-21 | Lowest operating temperature*1000H | No visible damage ∣△R25/R25∣≦ 2% | ||||
| 2 | High temperature storage | IEC 60068-2-21 | Highest operaing temperature*1000H | No visible damage ∣△R25/R25∣≦ 3% | ||||
| 3 | Thermal shock | IEC 60068-2-14 | 10 cycles | No visible damage ∣△R25/R25∣≦ 2% | ||||
| step | temperature(℃) | period(ms) | ||||||
| 1 | Low temperature ±5℃ | 30±3 | ||||||
| 2 | Room temperature | 5±3 | ||||||
| 3 | High temperature ±5℃ | 30±3 | ||||||
| 4 | Room temperature | 5±3 | ||||||
| (internal test: 100 cycles) | ||||||||
| 4 | Constant temperature and humidity | IEC 60068-2-3 | 60℃, 93%±3% RH; 1000H (internal test: 56 days) | No visible damage ∣△R25/R25∣≦ 2% | ||||
| 5 | Life test | IEC 60539-1 4.26 | 25±5℃, Pmax; 1000hrs (internal test: 56 days) | No visible damage ∣△R25/R25∣≦ 3 % | ||||
● storage conditions:
1. storage temperature: -10℃~+40℃
2. relative humidity:≦75%RH
● Period of Storage:one year
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