Functional Ntc Thermistor For Fire-Fighting Alarm Temperature
Sensor
Brief Instruction:
The NTC thermistor is made of NTC element, epoxy resin and bare
wire. It’s manufactured from Hefei Jingpu Sensor Technology
Co.,Ltd.
Features:
Small Epoxy bead
Good stability, fast response time
Operating temperature range: -40℃~125℃
Ceramic surface glass packaging, good moisture resistance, high
reliability and stability
Small size, no lead, excellent welding performance, suitable for
high density surface mount
A variety of B values for a variety of applications
Application:
Fire-fighting alarm
Part Number Code:
Structure and Dimensions:
| Probe Size | L | L1 | D | H | d1 |
| 2.6*17.5mm | 17.5±1 | 3±1 | Maxφ2.6 | 2.5 | 1 |
| 2.6*19mm | 19±1 | 3±1 |
| 2.6*23mm | 23±1 | 3±1 |
| 2.6*26mm | 25±1 | 3±1 |
Electrical specification:
| Product Specification | Rec. at T℃(KΩ) | Beta value | (In air)
Pmax(mW) | δ
(mW/℃) | thermal time constant τ(sec.) | Operating Temperature Range TL-TH(℃) | Total length
L(mm) |
| A1B212□4200A□□□□L19 | R62=20.92 | B25/85=4200 | Approx.3.5 | Approx.0.7 | Max.5.0 | -40~125 | 19 |
| A1A104□4132B□□□□L17 | 100 | B25/85=4132 | 17 |
| A1C104□4132B□□□□L23 | 100 | B25/85=4132 | 23 |
| A1B332□3970F□□□□L25 | R100=3.3 | B25/50=3970 | 26 |
Product picture/images:
Fire alarm thermistor
Standard packing (inner packing): 500pcs/polybag
Operation Notice
1. Application:Temperature measure and control；
2. The current flowing through the NTC is controlled within the
Pmax range to avoid the measurement error caused by the
self-heating of the component.
3. Avoid excessive heat shock,The hot air blow should beat least
30mm to the probe in case heat shrink protection tube need to be
attached.
4. Storage Temperature -10℃～40℃,≤75%RH；Avoid in a corrosive gas and
sunlit environment; After opening the package, it needs to be
sealed again.
