● Introduction: It is used for general precision temperature measuring devices, and for temperature compensation of transistor circuit, such as that of communication, telegraphic communication, electronic equipment, and precision electronic devices, as well as the overheat protection of auto audio. It is featured by wide resistance range, with maximum nominal resistance up to 2MΩ; wide material constant (B value): 2900 – 4500K; good solderability and impact resistance; and wide working temperature range: -40~120℃
·Main technical parameters: Nominal resistance and allowable deviation (see product list). Time parameter ≤ 30S Measuring power ≤ 0.1mW B value and allowable deviation (see product list) Dissipation coefficient ≥ 6mW/*S Rated power is 0.5W.
·Overall structure dimension:

·Load temperature characteristic line:

Specification |
Dimension (mm) |
Dmax |
Tmax |
Lmin |
F |
d |
1 |
4.5 |
3.0 |
25.0 |
2.5 ± 1 |
0.45 |
2 |
6.5 |
5.0 |
25.0 |
2.5 ± 1 |
0.45 | ·Sign description

Model |
Rated zero-power resistance at 25℃ |
B value (25/50℃) |
Resistance range (Ω) |
Allowable deviation(%) |
Nominal value(K) |
Allowable deviation(%) |
MF11 |
3.3-33 |
± 5
± 10
± 20
|
2700 |
± 5 |
6.8-68 |
2830 |
15-150 |
2950 |
33-330 |
3100 |
68-680 |
3250 |
150-1500 |
3400 |
330-3300 |
3570 |
680-6800 |
3740 |
1500-15000 |
3900 |
3300-33000 |
4050 |
MF12 |
6.8K-68K |
4250 |
15K-150K |
4450 |
33K-330K |
4670 |
68K-680K |
4800 |
150K-5000K |
5050 |
|