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20kR 30kR 47kR 50kR / Ohm Ntc Ptc Thermistor With Body Size 2x4mm

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20kR 30kR 47kR 50kR / Ohm Ntc Ptc Thermistor With Body Size 2x4mm

20kR 30kR 47kR 50kR / Ohm Ntc Ptc Thermistor With Body Size 2x4mm
20kR 30kR 47kR 50kR / Ohm Ntc Ptc Thermistor With Body Size 2x4mm 20kR 30kR 47kR 50kR / Ohm Ntc Ptc Thermistor With Body Size 2x4mm

Large Image :  20kR 30kR 47kR 50kR / Ohm Ntc Ptc Thermistor With Body Size 2x4mm Get Best Price

Product Details:

Place of Origin: Shenzhen of China
Brand Name: WS
Certification: SGS
Model Number: WS-MFB-xxxx

Payment & Shipping Terms:

Minimum Order Quantity: 1000pcs
Price: Negotiation
Packaging Details: plastic bag or reel + carton
Delivery Time: 3-5 work days
Payment Terms: T/T, Western Union,Paypal
Supply Ability: 1000000pcs/day
Detailed Product Description
Color: Red Resistance: 20/30/47/50 Kohm
B Value: 3950 & 4200k Delivery: Fast
Price: Lowest Price SIZE: 2X4MM
High Light:

ntc type thermistor

,

10k ntc thermistor

20kR 30kR 47kR 50kR / ohm Glass Sealed NTC Thermistor with body size 2x4mm

 

Features:

1. Body sizeΦ2mm X 4mm
2. resistance range: 20kR 30kR 47kR 50kR / ohm
3. B value range: 3920&4200k
4. -40 ~ +300℃ operating temperature range
5. Agency recognition:UL/cUL
6. RoHS compliant

 

 

Recommended applications

Rice cooker, microwave oven, electric cooker, coffee pot, electric blanket, soy sauce pot, toaster etc.

 

 

Code number and specifications:

20kR 30kR 47kR 50kR / Ohm Ntc Ptc Thermistor With Body Size 2x4mm 0

 

 

 

 

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-2002-3950 20 1,2,3,5,10 25/50 3950 1,2,3,5 100 ≧2 ≦9 -40~+300
WS-MFB-2002-4200 20 25/50 4200
WS-MFB-3002-3950 30 25/50 3950
WS-MFB-4702-3950 47 25/50 3950
WS-MFB-5002-3950 50 25/50 3950

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

 

R-T characteristic curve:

 

20kR 30kR 47kR 50kR / Ohm Ntc Ptc Thermistor With Body Size 2x4mm 1

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

 

 

Payment and Shipping:

1, Lead time about 3~5 days.

2, Payment: T/T; Western union; Paypal .

3, Shipping: by DHL, Fedex, TNT, UPS, EMS ect


 

Contact: Angel Sun
Tel: +86-13528847020
Email: Admin@winsunhk.cn
Skype: Angelsun618
Whatsapp: 13528847020
Wechat: 13528847020
QQ: 553695308

Contact Details
Shenzhen Winsun Technology Co., Ltd.

Contact Person: Ms.Angel Sun

Tel: +8613528847020

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