9:感应快速,高灵敏度
产品型号描述
①MF¬ -负温度系数(NTC)热敏电阻的代码。
②58-玻璃封装热敏电阻。
③103--热敏电阻标称电阻,表示标称电阻的电阻:10×103(Ω)。
F =±1%,G =±2%,H =±3%,J =电阻值的±5%(精度)
⑤3950 - 热指数的电阻(材料系数)B值:395×10(K )
注:根据客户要求,提供不同的R值,B值精度,定制。
测量NTC热敏电阻时,必须注意以下事项:
•无法在空气中测量,空气中的温差较大,测量不准确,导致精度偏差。
•使用高精度恒温器测量,NTC进入恒温器后测试罐,恒温器温度稳定后,即可测量。
•测量尽可能低的电压,以减少由测量误差引起的NTC自热。
•对于高温测量,需要校正浴槽温度并用温度计检查。
产品规格
模型 |
额定电阻值(R25) |
B 值 |
工作温度 |
耗散系数(mW /℃) |
热时间常数(S) |
电阻值 |
公差 |
标称值 |
(KΩ) |
(±%) |
(K) |
MF58-202-3435 |
2 |
±1% |
3435 |
-40℃ |
≥2.0 |
≤12 |
MF58-502-3470 |
5 |
±2% |
3470 |
〜 |
静止空气 |
静止空气 |
MF58-103-3435 |
10 |
±3% |
3435 |
+ 250℃ |
|
|
MF58-103-3600 |
10 |
±5% |
3600 |
|
|
|
MF58-103-3700 |
10 |
|
3700 |
|
|
|
MF58-103-3950 |
10 |
|
3950 |
|
|
|
MF58-103-4100 |
10 |
|
4100 |
|
|
|
MF58-203-3950 |
20 |
|
3950 |
|
|
|
MF58-233-3950 |
23 |
|
3950 |
|
|
|
MF58-303-3950 |
30 |
|
3950 |
|
|
|
MF58-40.27-3979 |
40.27 |
|
3979 |
|
|
|
MF58-473-3950 |
47 |
|
3950 |
|
|
|
MF58-503-3950 |
50 |
|
3950 |
|
|
|
MF58-503-4050 |
50 |
|
4050 |
|
|
|
MF58-104-3899 |
100 |
|
3899 |
|
|
|
MF58-104-3950 |
100 |
|
3950 |
|
|
|
MF58-104-3990 |
100 |
|
3990 |
|
|
|
MF58-104-4050 |
100 |
|
4050 |
|
|
|
MF58-104-4200 |
100 |
|
4200 |
|
|
|
MF58-204-4260 |
200 |
|
4260 |
-40℃ |
|
|
MF58-504-4260 |
500 |
|
4260 |
〜 |
|
|
MF58-504-4400 |
500 |
|
4400 |
+ 300℃ |
|
|
MF58-105-4400 |
1000 |
|
4400 |
|
|
|
常用的MF58玻璃密封件有NTC热敏电阻和B值参数
抵抗性 |
B 值 |
R25 |
|
400 |
3200 |
|
|
|
|
|
|
|
500R |
3000 |
|
|
|
|
|
|
|
1K |
3300 |
3470 |
|
|
|
|
|
|
1.8K |
3460 |
|
|
|
|
|
|
|
2K |
3470 |
3900 |
|
|
|
|
|
|
2.5K |
3490 |
|
|
|
|
|
|
|
2.89K |
3470 |
|
|
|
|
|
|
|
4.7K |
3230 |
3540 |
|
|
|
|
|
|
5K |
3470 |
3950 |
3600 |
3274 |
3350 |
3530 |
|
|
7.5K |
3430 |
|
|
|
|
|
|
|
8.2K |
3950 |
|
|
|
|
|
|
|
10K |
3270 |
3380 |
3435 |
3470 |
3600 |
3740 |
3950 |
4080 |
11.78K R80 |
3550 |
3550 |
|
|
|
|
|
|
12K |
3600 |
|
|
|
|
|
|
|
12.5K |
3950 |
|
|
|
|
|
|
|
15K |
3950 |
4100 |
|
|
|
|
|
|
20K |
3950 |
4000 |
4160 |
4200 |
|
|
|
|
22K |
3750 |
4200 |
|
|
|
|
|
|
22.5K |
4200 |
|
|
|
|
|
|
|
30K |
3850 |
3950 |
|
|
|
|
|
|
33K |
3950 |
|
|
|
|
|
|
|
40K |
3950 |
|
|
|
|
|
|
|
40.27K |
3950 |
|
|
|
|
|
|
|
47K |
3950 |
|
|
|
|
|
|
|
50K |
3950 |
3990 |
4050 |
|
|
|
|
|
57.5K |
3950 |
|
|
|
|
|
|
|
58.3K |
3980 |
|
|
|
|
|
|
|
92K |
3950 |
|
|
|
|
|
|
|
100K |
3400 |
3900 |
3950 |
3990 |
4050 |
4100 |
4200 |
4360 |
104K |
3460 |
|
|
|
|
|
|
|
105K |
4200 |
|
|
|
|
|
|
|
107.1K |
4220 |
4200 |
|
|
|
|
|
|
150K |
3950 |
4300 |
|
|
|
|
|
|
192K |
3860 |
|
|
|
|
|
|
|
200K |
4420 |
3570 |
3899 |
3500 |
3520 |
4200 |
|
|
230K |
4150 |
4370 |
|
|
|
|
|
|
238K |
4200 |
|
|
|
|
|
|
|
250K |
3950 |
|
|
|
|
|
|
|
455K |
4120 |
|
|
|
|
|
|
|
470K |
4370 |
|
|
|
|
|
|
|
500K |
4050 |
4260 |
4300 |
|
|
|
|
|
520K |
4050 |
|
|
|
|
|
|
|
530K |
4080 |
|
|
|
|
|
|
|
533K |
4090 |
|
|
|
|
|
|
|
540K |
4090 |
|
|
|
|
|
|
|
542K |
4110 |
|
|
|
|
|
|
|
545K |
4083 |
|
|
|
|
|
|
|
548K |
4110 |
|
|
|
|
|
|
|
583K |
4140 |
|
|
|
|
|
|
|
1M |
4200 |
4400 |
|
|
|
|
|
|
1.1M |
4230 |
|
|
|
|
|
|
|
1.388M |
4600 |
|
|
|
|
|
|
|
2.3M |
4500 |
|
|
|
|
|
|
|