MachineU > China Products > Machinery > Refrigeration & Heat Exchange Equipment > Heating Equipment
4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor
4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor
4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor
4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor
4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor
4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor
4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor
4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor
Specifications
Brand Name :
AOLITTEL
Model Number :
MF12-521K
MOQ :
1000 Pieces
Payment Terms :
T/T, Western Union
Price :
Negotiable
Supply Ability :
8,000,000 Pieces Per Month
Delivery Time :
2 Week
Packaging Details :
Bulk,500pcs/Bag,5000pcs/Box
Product Name :
Leadless Bare Disc NTC Thermistor
Resistance at 25℃ :
520±10% Ω
Beta Value :
2850±3% 0K
Dissipation Factor （δ） :
≥4.5mw/℃
Thermal Time Constant（t） :
≤20S
Operating Temperature Range :
-40～+125℃
Diameter :
4.6-5.0 mm
Thickness :
1.1-1.3 mm
Description

4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor

General

Aolittel leadless disc thermistors offer excellent thermal and electrical stability with wide range of resistance values customizable based on material properties and customer requirements. These parts are ideal for various general purpose and automotive (AEC-Q200) applications. Available in custom disc sizes and multiple temperature stability options.

This type of product is widely used in automotive and consumer applications. They are assembled in custom-probes for sensing the temperature of liquids (water, oil, ...), gases or surface of any other component. The metallization covers completely the surfaces of the thermistor. The particularly flat and smooth surfaces ensure an excellent electrical and thermal contact under pressure.

______________________________________________________________________________4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor Download________

Dimension

4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor

Part Number D(mm) T(mm)
MF12-521K 4.6-5.0 1.1-1.3

Main Electrical Property

Zero Power Resistance at 25℃ 520±10% Ω
Beta Value 2850±3% 0K
Dissipation Factor (δ) ≥4.5mw/℃
Thermal Time Constant(t) ≤20S
Operating Temperature Range -40～+125℃
Electrical Characteristics
Item Test Requirements and method Performance requirements
Zero Power Resistance at 25℃ Ambient temp. Range:25℃±2℃(TA).Apply with DC voltage but won’t make thermistor heat then test. 520±10%Ω
Beta Value

Test resistance at 25℃ and 50℃ then calculate B value as below:

B=ln(R25/R50)/(1/298.15-1/323.15)

R25= Resistance at 25.0±0.2℃

R50= Resistance at 50.0±0.2℃

 2850±3% 0K
Thermal Dissipation Constant In room temperature, power consumed mw/℃ at every increase 1 degree ≥4.5mw/℃

Thermal Time Constant

 Time takes from initial temperature decline to 63.2% of temperature value (85℃ →47.1℃) ≤20S
Mechanical Property
Item Test Conditions & Methods Performance requirements
Solder-ability

Molten tin bath temperature:255±5℃

Time :2.0±0.5 s

Immersion depth: 6mm distance from body

 Free flow and lead solder wetting for good weldability
Resistance to soldering heat

Immersion depth : 6mm away from body

Temperature:350±5℃

Time :3.5±0.5sec

 △R/R≤±10%
Environment And Durability Test
Steady State damp and hot Place into environment 40±2℃ temperature ,Humidity 90—95% R.H. for 42 days, take out and place into room temperature for 1h~2h then do test

No visible mechanical damage

△R/R ≤±20%

Temp. Cycling Testing

5 Cycles as below requested then take out and place into room temperature for 1h~2h then do test

Temperature(℃) Time(min)
-40±5 30±3
Room Temperature 15±3
125±5 30±3

No visible mechanical damage

△R/R ≤±20%
Ceiling type temperature (+ 125 ℃) under the zero dissipation of durability

Time : 1000h

Appearance inspection

Zero Power Resistance

No visible mechanical damage

△R/R ≤±20%

Features & Benefits


Fully metalized leadless disc
Multiple temperature stability options
Customized solutions

Application

Automotive
Consumer
Industrial

Package

Packaging quantity

Part Number Inner packing qty(PC/Bag) Box packing qty(PC/Box)
MF12-521K 500 5000

Terms of Transportation

With negative temperature coefficient thermistor boxes allow in any way transport, but avoid the rain, snow, directly or indirectly and mechanical damage.

Strorage Condition

(1)Negative temperature coefficient thermistor is stored in: temperature for 10 ~ + 40 ℃, relative humidity is not more than 80% of the environment；

(2)Should not have acid, alkali and corrosive gas or radiation source, to prevent the oxidation of the electrode, affect the solderability；

(3)Product storage should be sealed packaging.

Storage life

In the above conditions can be stored for one years

DESIGN OF THE THERMISTOR

Choice of the resistances If the application is to measure the temperature around a defined point, a unique nominal resistance can be chosen (for example, among standard values of the ND range products presented on pages 20 to 24). When it is required to measure the temperature over selected ranges T1 –T2 , T2 –T3 , ..., the corresponding resistance R1 , R2 , R3 , ..., must be such that they can be located on the R (T) characteristic of an existing NTC material (for example among standard materials whose R (T) are displayed on pages 29 to 33). The resistances must also be compatible with the resistivity of the material and the dimensions of the thermistor.

Choice of the tolerances

The precision of the temperature measurement determines the calculation of the tolerance on the resistance: R/R = (%/°C). T (°C) For example, the NTC NR55--3049-99, using “N5” material (R (T) characteristic displayed on page 31), requires a precision of 1°C over the temperature range 110°C - 120°C. The tolerances can be calculated: R110°C /R110°C = 1°C* 2.91%/°C = 2.91% R120°C /R120°C = 1°C* 2.76%/°C = 2.76% *For your specific requirements, please consult us.

Product tags

precision ntc thermistor

,

thermistor datasheet

,

high accuracy thermistor
Send your message to this supplier
Send Now

4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor

Ask Latest Price
Product Detail
Brand Name :
AOLITTEL
Model Number :
MF12-521K
MOQ :
1000 Pieces
Payment Terms :
T/T, Western Union
Price :
Negotiable
Supply Ability :
8,000,000 Pieces Per Month
Contact Supplier
4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor
4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor
4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor
4.8mm Diameter Leadless Bare Disc NTC Thermistor 520 Ohm 10% 2850K For Automotive Temperature Sensor

Aolittel Technology Co.,Ltd

Site Member
7 Years
guangdong, dongguan
Since 2017
Business Type :
Manufacturer, Exporter
Main Products :
Auto Blade Fuse, Auto Fuse Holder, Surface Mount Fuse
Total Annual :
3,750,000-5,000,000
Employee Number :
400~500
Certification Level :
Site Member
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products NTC Thermistor
MachineU China Products Machinery Refrigeration & Heat Exchange Equipment Heating Equipment
Contact Supplier
Submit Requirement