Dongguan Linkun Electronic Technology Co., Ltd.
Dongguan Linkun Electronic Technology Co., Ltd.
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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 |
| 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.
| Part 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.