Surface Mount Package Chip NTC Thermistor 0402 0603 0805 SMD For Smartphone Tablet Automotive xEV Wearables Medical

Description

Chip NTC thermistors are thermally sensitive semiconductive resistors that are designed for temperature measurement and compensation. The portfolio covers NTC thermistors with excellent long-term stability in high-temperature and high humidity environment, e.g. for smart phone, tablet by small case size, automotive applications, LED modules and industrial applications. Tight tolerances of resistance and B value allow highly accurate temperature sensing capabilities.

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Appearance

Construction

Main Features

Terminal electrodes with Ag-Ni-Sn three-layer structure having excellent weldability, soldering resistance;

Monolayer structure technology, distribution capacity is low (less than 3PF), can be used in high-frequency field;Glass surface using encapsulation technology (10 μm), having good mechanical strength and moisture resistance, and corrosion resistance.Operating temperature range is -40~+125℃.

Dimension: mm (inch)

0402(1005)
0603(1608)
0805(2012)

Specification

Application

Smartphone/Tablet
Automotive (xEV)
Car Infotainment
Wearables
Medical equipment

Process flow in production

Slurry preparation
Mixing and milling
Tape casting
Stacking and printing
Pressing/ cutting
Debindering/ sintering
Glass-coating process
Burn-in of glass coating
Ag metalization
Burn-in of termination
Electroplating of Ni/Sn
Measuring and taping

Reliability Test

Test Item	Testing standards	Test methods	Test object	Performance requirements
The strength of the tip	IEC68-2-21	F:0402≥3N,0603≥8N,0805≥10N	SNC	No visible damage
Bending strength	IEC68-2-21	h:1±0.1mm	SNC	No visible damage ∣△R25/ R25∣≤3%
Lead bend	IEC68-2-21	F:0.07<s≤0.2mm2 td="">	SNE/SNG	No visible damage
Leads Rally	IEC68-2-21	F:0.3<d≤0.5mm 0.8mm="" 10n="" td=""><s≤0.2mm2 td="">	SNE/SNG	No visible damage
Fall	IEC68-2-32	Drop height:1±0.1m Fall times:1 Drop surface:Cement	SNC/SNE/ SNS	No visible damage ∣△R25/ R25∣≤1% ∣△B/ B∣≤2%
Weldability	IEC68-2-20	Soldering temperature:260±5℃ Immersion time:3±1s	SNC/SNE/ SNG/SNS/PN	The tin area≥95%
Resistance to soldering heat	IEC68-2-20	Soldering temperature:280±10℃ Immersion time:10±1s	SNC/SNE/ SNG/SNS	No visible damage ︱△R25/ R25∣≤3%
			PN	No visible damage ∣△R25/ R25∣≤10%
Damp heat load	IEC68-2-2/ IEC68-2-3/ CNS5550	Temperature:40±2℃ Humidity:90～95%RH Time:500±12h Operating current	SNC/SNE/ SNG/SNS	No visible damage ∣△R25/ R25∣≤5% ∣△B/ B∣≤2%
Thermal Shock	IEC68-2-14	Temperature:－40℃,＋125℃ Cycle:100,30min/cyc	SNC/SNE/ SNG/SNS	No visible damage ∣△R25/ R25∣≤5% ∣△B/ B∣≤2%
			PN	No visible damage ∣△R25/ R25∣≤20%
High-temperature load	IEC68-2-2/ CNS5550	Temperature:125±2℃ Time:1000±24h Operating current	SNC/SNE	No visible damage ∣△R25/ R25∣≤5% ∣△B/ B∣≤2%
		Temperature:165±2℃ Time:1000±24h Operating current	SNG	No visible damage ∣△R25/ R25∣≤5% ∣△B/ B∣≤2%
		Temperature:85±2℃/105±2℃ Time:1000±24h Operating current	SNS	No visible damage ∣△R25/ R25∣≤5% ∣△B/ B∣≤2%
		Temperature:125±2℃ Time:1000±24h Operating current	PN	No visible damage ∣△R25/ R25∣≤20%
Low-temperature storage	IEC68-2-1	Temperature:－40±2℃ Time:1000±24 h	SNC/SNE/ SNG/SNS	No visible damage ∣△R25/ R25∣≤2% ∣△B/ B∣≤2%
			PN	No visible damage ∣△R25/ R25∣≤20%
Insulation Resistance	MIL-STD-202F -Method 302	Insulation voltage:1000VDC Time:1 min	SNC/SNE/ SNG/SNS/PN	No visible damage Insulation Resistance:≥500 MΩ
Durability	UL1434	EnvironmentTemperature: 25±2℃ Operating current Cycle:6000	SNC/SNE/ SNG/SNS	No visible damage ∣△R25/ R25∣≤5% ∣△B/ B∣≤2%
		EnvironmentTemperature: 25±2℃ Rated voltage,Rated Current Rated capacitance: 240VAC capacitor value Cycle:6000	PN	No visible damage ∣△R25/ R25∣≤20%

Temperature characteristics

Examples

To customers who use NTC Thermistors for the first time

STEP 1:Please specify the required conditions.

①A basic constitution of circuit
②Reference voltage
③A range of temperature control and a range of an output voltage
④A target temperature and a target output voltage

STEP 2:We’ll make a table and graphs of the main characteristics value

①An output voltage(the upper and the lower limit)
②Sensitivity(mV/℃)
③Accuracy in temperature
④Current of circuit

STEP 3:We’ll change the circuit constant and simulate

①Decide the part number
(1)Ｂ value and its tolerance
(2)Resistance value R25 and its tolerance
②Simulate the resistance value of the peripheries of a fixed resistor and its tolerance

We propose you the best circuit constant.

Summary