0603 10KOHM Surface Mount Thermistor 3450k Surface Mount Resistors

0603 10KOHM Surface Mount Thermistor 3450k Surface Mount Resistors

Features 

Coated with glass layer, excellent humidity resistance, high reliability and stability

Miniature size, no lead, excellent solderability, ideal for high density SMT installation

Wide operating temperature range: -55℃～＋125℃； 

Series of B constant for various applications

Application 

Telecommunication equipment such as cellphone, automobile phone, etc. 

Office automation such as printer, Fax machine, projector, desktop computer, etc.

Consumer electronics such as video recorder, laptop, wearable devices, etc.

Others such as power supplies，rechargeable batteries and chargers, LED lighting fields, etc.

V Main Techno-Parameters(In static air) Of The Surface Mount NTC Thermistor 0603
 

VI Sample application: Temperature detection for battery packs of mobile devices

All rechargeable batteries and lithium ion batteries in particular must be monitored and protected by smart charging circuits, as the mobile communication device drawing power from the batteries must operate in a variety of environments, including low and high-temperature operation.
As preferred temperature detection devices NTC thermistors are used in the protective circuitry. NTC thermistors can detect the ambient temperature for different purposes, depending on the battery system. Especially for quick charging the ambient temperature has to be measured, as not all batteries allow the charging in the hot and cold temperature range. Usually charging temperatures of 0 °C up to 45 °c for slow charging, and 5 °C, 10 °C up to 45 °C for quick charging are recommended by the battery pack manufacturers depending on the battery chemistry.

The NTC thermistor is part of a smart charging control unit (see circuit below), which assures that the ambient temperature is in the range allowing quick charging. During charging the NTC thermistor repeatedly measures the temperature all 5 to 10 seconds and can detect a rise in the battery cell's temperature at the end of the charging cycle or caused by abnormal charging conditions.
During discharging NTC thermistors also perform temperature compensation for the voltage measurement, which helps to measure the remaining charge in the battery.

Fig. 3: Temperature detection for battery packs of mobile devices

 
 
VII Advantages of SMD NTC thermistors
 
NTC thermistors are temperature-sensitive resistor elements using semiconductor ceramics with negative temperature coefficients (NTC). That means that the resistance decreases exponentially with rising temperature. The steeper the RT curve, the greater the change in resistance within a specified temperature range. With this property, they are often used as temperature sensors and also used as temperature protection devices for purposes such as temperature measurement and temperature compensation.
 

VIII Frequently Asked Question FAQ

Q: Are you manufacturer ?
A: Yes, we are manufacturer and distributor of famous brand such as Littelfuse.

Q: Which city does your factory in ?
A: Dongguan City,Guangdong Province, China

Q: May i know your working time ?
A: Official working time is 8:00 ~ 12:00 AM, 1:30 ~ 5:30 PM.However, sales in our overseas department will do overtime working and 7x24hours online.

Q: Do you accept custom made ?
A: Yes, we are professional in customization model based on rich experiences and professional engineering.It’s helpful if you can provide drawing or detailed specification should be.

Q: May i know your lead time ?
A: Lead time is 7 days for standard model and exact lead time depend on detailed requirements if special model selected.

Q: May i receive samples before place order ?
A: Yes, generally samples is free but sample cost should be charged if quantity is too many ,product cost is too much or new mould fee required.

Q: What’s your payment terms ?
A: T/T, Paypal etc.

Q: What’s currency you can accept ?
A: Mainly US dollars and Chinese Yuan

Q: Does your package method safe for transportation ?
A: Yes, our package would be 10~1000pcs per plastic bag -> multiple bags per box -> multiple boxes per carton and it is safe for express/air/boat shipment.