Multilayer 3225 SMD VDR 1210 Surface Mount Metal Oxide Varistor CQC
TUV Certificated
SMD chip NTC thermistor has the characteristics of small size, high
reliability ceramic structure, fast response, good heat cycle
resistance, etc., and is widely used in lithium batteries, hybrid
design multi-function modules, IT equipment, etc. Because the SMD
chip NTC thermistor is suitable for leadless high-density surface
mount, it plays the role of temperature monitoring and overheating
protection in the following products:
Temperature monitoring during mobile device battery charging
In battery packs (lithium-ion batteries) of mobile devices such as
smartphones, there are terminals for temperature monitoring in
addition to + terminals and - terminals, and SMD thermistors are
mounted inside them. When the battery temperature rises, the
temperature of the NTC thermistor will also rise, and the
resistance value will drop. When the charging temperature exceeds
the upper limit, the charging control IC will stop charging. A
protection IC within the battery pack measures the battery voltage
to prevent overcharging or overdischarging. In situations such as
fast charging that require more precise charging control, an NTC
thermistor is required to be connected to the charging control IC
to measure the ambient temperature.
Temperature Monitoring for Thermal Printers
The head temperature of a thermal printer is correlated with the
printing density, the higher the temperature, the higher the
density, and the lower the temperature, the lower the density.
According to the monitored temperature of the thermal head, it
changes the pulse current sent to the thermal head and controls the
voltage so as to maintain a certain printing density. Using SMD
thermistors for temperature monitoring can effectively ensure the
normal operation of thermal printers.
Specification
1. Professional Varistorr supplier. SMD series
2. Wide parameter range for your choice.
3. High quality guaranteed ISO9001:2008 quality approve
4. Application: Electronic products, new products, new designs.
5.Technical support and professional recommendation
| type | size L×W×T(mm) | R25 (kΩ) | B(25/50) (K) | allowable working current (25℃) (mA) | Thermal time constant
|
| QN0201 | 0.60×0.30×0.30 | 1.0～220 | 3380～4485 | 0.06～1.00 | ＜3 |
| QN0402 | 1.00×0.50×0.50 | 1.0～680 | 3380～4500 | 0.03～1.00 | ＜3 |
| QN0603 | 1.60×0.80×0.80 | 1.0～1300 | 3380～4500 | 0.02～1.00 | ＜5 |
| QN0805 | 2.00×1.25×0.85 | 1.0～1300 | 3380～4500 | 0.02～1.40 | ＜5 |
| QN1206 | 3.20×1.60×0.85 | 10～1300 | 3380～4500 | 0.03～0.66 | ＜8
|
Product parameters
| P/N | R@25℃ | Tolerance(%) | Beta Value | Tolerance(%) |
| MF11-050 | 5 | ±5 ±10 ±20 | 2400 | ±5 ±10 |
| MF11-100 | 10 | 2800 |
| MF11-150 | 15 | 2800 |
| MF11-200 | 20 | 2800 |
| MF11-220 | 22 | 2800 |
| MF11-270 | 27 | 3000 |
| MF11-330 | 33 | 3000 |
| MF11-390 | 39 | 3000 |
| MF11-470 | 47 | 3100 |
| MF11-500 | 50 | 3100 |
| MF11-680 | 68 | 3100 |
| MF11-820 | 82 | 3100 |
| MF11-101 | 100 | 3200 |
| MF11-121 | 120 | 3200 |
| MF11-151 | 150 | 3200 |
| MF11-201 | 200 | 3200 |
| MF11-221 | 220 | 3500 |
| MF11-271 | 270 | 3500 |
| MF11-331 | 330 | 3500 |
| MF11-391 | 390 | 3500 |
| MF11-471 | 470 | 3500 |
| MF11-501 | 500 | 3500 |
| MF11-561 | 560 | 3500 |
| MF11-681 | 680 | 3800 |
| MF11-821 | 820 | 3800 |
| MF11-102 | 1000 | 3800 |
| MF11-122 | 1200 | 3800 |
| MF11-152 | 1500 | 3800 |
| MF11-202 | 2000 | 4000 |
| MF11-222 | 2200 | 4000 |
| MF11-272 | 2700 | 4000 |
| MF11-302 | 3000 | 4000 |
| MF11-332 | 3300 | 4000 |
| MF11-392 | 3900 | 4000 |
| MF11-472 | 4700 | 4050 |
| MF11-502 | 5000 | 4050 |
| MF11-562 | 5600 | 4050 |
| MF11-682 | 6800 | 4050 |
| MF11-822 | 8200 | 4050 |
| MF11-103 | 10000 | 4050 |
| MF11-123 | 12000 | 4050 |
| MF11-153 | 15000 | 4150 |
| MF11-203 | 20000 | 4300 |
| MF11-303 | 30000 | 4300 |
| MF11-473 | 47000 | 4300 |
| MF11-503 | 50000 | 4300 |
| MF11-683 | 68000 | 4300 |
| MF11-104 | 100000 | 4500 |
| MF11-124 | 120000 | 4700 |
| MF11-154 | 150000 | 4700 |
| MF11-204 | 200000 | 4700 |
| MF11-304 | 300000 | 4700 |
| MF11-504 | 500000 | 4800 |
| MF11-105 | 1000000 | 4900 |
1.TCXO,Temperature compensating circuit of LCD
2.Temperature sensing in rechargeable batteries and chargers/CPU
3.IC and semiconductor protecting.
4.Printer temperature compensating circuit. Player Driver
5.Telecom exchanger
6.DC/AC transformer and HIC over heat protecting.
Conventional product electrical performance parametersPart No. | R25℃ (KΩ) | B(K) 25/50℃ | Rated Power @25℃(mW) | Dissipation Factor(δ) (mW/℃) | Thermal time Constant (S) |
TS502□3274A | 5.0 | 3274 | 10-20 | 2-4 | 5-20 |
TS502□3435B | 5.0 | 3435 | 10-20 | 2-4 | 5-20 |
TS502□3470A | 5.0 | 3470 | 10-20 | 2-4 | 5-20 |
TS502□3950A | 5.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS103□3274A | 10.0 | 3274 | 10-20 | 2-4 | 5-20 |
TS103□3435B | 10.0 | 3435 | 10-20 | 2-4 | 5-20 |
TS103□3470A | 10.0 | 3470 | 10-20 | 2-4 | 5-20 |
TS103□3950A | 10.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS103□4100A | 10.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS153□3950A | 15.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS153□4100A | 15.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS203□3950A | 20.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS203□4100A | 20.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS223□4200A | 22.0 | 4200 | 10-20 | 2-4 | 5-20 |
TS403□3928A | 40.0 | 3928 | 10-20 | 2-4 | 5-20 |
TS503□3950A | 50.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS503□4100A | 50.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS104□3950A | 100.0 | 3950 | 10-20 | 2-4 | 5-20 |
TS104□4100A | 100.0 | 4100 | 10-20 | 2-4 | 5-20 |
TS104□4400A | 100.0 | 4400 | 10-20 | 2-4 | 5-20 |
Negative temperature coefficient thermistor, also known as NTC
thermistor, is a kind of sensor resistance whose resistance value
decreases with the increase of temperature. Widely used in various
electronic components, such as temperature sensors, resettable
fuses and self-adjusting heaters, etc.
