|
[China]
Trade Verify
Address: 4/F, Block C, HeHengXing Science & Technology Park, 19 MinQing Road, LongHua District, Shenzhen City, GuangDong Province, China
Contact name:Sun
Shenzhen Socay Electronics Co., Ltd. |
|
Verified Suppliers
|
|
|
High Power Rating MF72-SCN8D-9 Power Thermistor Ф9mm NTC Thermistor for Switch Mode Power Supply
DATASHEET: MF72-SCN8D-9_v2105.1.pdf
| Part Number | Resistance at 25℃ ±20% | Max. Permissible Working Current | Resistance under Load (mΩ) | Dissipation Factor | Thermal Time Constant | Maximum permissible capacitance @240Vac |
| R25(Ω) | Imax(A) | (mΩ) | δ(mW/℃) | τ(Sec.) | C(uF) | |
| MF72-SCN8D-9 | 8 | 2 | 400 | 11 | 32 | 110 |
About NTC
NTC is the abbreviation of Negative Temperature Coefficient, which means negative temperature coefficient. It generally refers to semiconductor materials or components with a large negative temperature coefficient. Usually, the NTC we refer to refers to a negative temperature coefficient thermistor, or NTC thermistor for short. Also known as a negative temperature coefficient thermistor, it is a type of sensor resistor whose resistance value decreases as the temperature increases.
The NTC thermistor is a very simple temperature sensor that is very common in consumer electronics. NTC thermistor is a typical temperature-sensitive semiconductor resistor, and its resistance value decreases step by step as the temperature increases.
NTC thermistors are made of metal oxides such as manganese, cobalt, nickel, and copper as the main materials, and are manufactured using ceramic processes. These metal oxide materials have semiconductor properties because they are completely similar to germanium, silicon, etc. in conductive methods. Semiconductor materials. When the temperature is low, the number of carriers (electrons and holes) of these oxide materials is small, so the resistance value is high; as the temperature increases, the number of carriers increases, so the resistance value decreases.
Features:
|
| Part Number | Type of L | Quantity (pcs/bag) |
| MF72-SCN8D-9 | Lshort | 1000 |
| Llong | 500 |
| Item | Test conditions / Methods | Test Result |
Tensile Strength of Terminals | Fasten body with a Load Applied to each lead 3.0Kg for 1sec. | No break out and damage |
Bending Strength of Terminals | Fixed body hand 1.0kg on one terminal bend 90 then back again oppsite. | No break out and damage |
| Solder Ability | When the Lead wire was dipped into bath 0f 235 ± 5 ℃ for 3 seconds after immersion in 25% rosin flux the solder ability ratio of lead wire surface should more than 95%. | More than 95% solder ability |
| Temp. Cycle Test | (-40℃×→+25℃×3min) × 5Cycles (-85℃×→+25℃×3min) × 5Cycles | ∣ΔR/R∣≤ ±20 % |
| Humidity Test | 45℃ 95%RH×1000 hours | ∣ΔR/R∣≤ ±20 % |
| Load Life | 6 AMP×1000 hours | ∣ΔR/R∣≤ ±20 % |
| Insulation Test | DC 700V | R≥500MΩ |
Thermister NTC Selection methods and Applications
I.Selection methods
Zero power resistance based on maximum operating ambient
temperature.
The maximum steady-state current at the maximum ambient temperature
is greater than the customer's maximum long-term operating current,
with a margin.
II.Applications
Switching power supplies, adapters, PD fast chargers,electronic motors, etc.
About SOCAY
we are manufacturer and supplier of NTC ,DIODES ect passive components more than 20 years from China .if you have any request please contact us freely .
