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[China]
Trade Verify
Address: No.1, Yixiang ,Liwu Industrial Park,Liwuyuan Village,Xihu District, Shilong Town,Dongguan 523325,Guangdong ,China
Contact name:James Lai
Dongguan Ampfort Electronics Co., Ltd. |
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Verified Suppliers
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Epoxy-dipped NTC Thermistor Probe Sensor 10K 5K 50K 100K 4132 4200 4250 3950 For Fire Alarm Temperature Measurement
In summer, the weather is urgent, and the incidence of fire accidents has also risen. In order to avoid the occurrence of fires, while strengthening people's safety awareness, it is also equipped with a more complete fire protection system and a sensitive fire alarm. In order to improve the sensitivity of the fire alarm device for smoke, Ampfort Electronics is recommended to place NTC thermistor to monitor temperature monitoring to help it better conduct fire detection.
The thermal resistance of epoxy packaging is generally a metal lead
such as a tin -plated copper -plated steel wire or paint line line.
After welding the thermist chip, it is wrapped in epoxy resin. This
series of products can adopt different color epoxy resin, and the
diameter of the lead is 0.25 ~ 0.5 mm.
Product characteristics: epoxy packaging, miniaturization, high
accuracy; fast response time, good stability;
The main technical parameters:
1. By-based B value: 3000-4500k R25 ° C is a product with
0.5kΩ-2000kΩ.
2. Disposal coefficient (mW/℃): In the static air, about 2.1
3. Time constant (s): Static air ≤12
4. Work temperature range (℃): -40 ℃ ~+125 ℃
Scope of application: fire alarm, computer, copy machine,
electronics calendar, thermometer, temperature control instrument
and temperature compensation.
| Electrical characteristic | ||||
| Item | Code | Test condition | Performance requirements | Unit |
| Rated resistance | R25℃ | +25℃±0.05℃ | 100±3% | kΩ |
| B value | B25/85 | +25℃±0.05℃, +85℃±0.05℃ | 4132±1% | K |
| Response time | τ | In still air | ≤20 | S |
| Dissipation factor | δ | In still air | Approx 2.0 | mW/℃ |
| Max.Power | Pmax | In still air | Approx 60 | mW |
| Withstand voltage | Hi-pot | In still air AC500V 1mA 1s | No break down | V |
| Operating Temp. Range | OTR | In still air | -30~125 | C |
| Product Specification | Rec. at TºC(KΩ) | Beta value | (In air) Pmax(mW) | δ (mW/ºC) | thermal time constant τ(sec.) | Operating Temperature Range TL-TH(ºC) | Total length L(mm) |
| A1B2124200AL19 | R62=20.92 | B25/85=4200 | Approx.3.5 | Approx.0.7 | Max.5.0 | -40~125 | 19 |
| A1A1044132BL17 | 100 | B25/85=4132 | 17 | ||||
| A1C1044132BL23 | 100 | B25/85=4132 | 23 | ||||
| A1B3323970FL25 | R100=3.3 | B25/50=3970 | 26 |
