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1. Applications:
Applicable to the surge current suppression of the conversion power supply, switching power supply, UPS power supply, large power lights and electric heaters.
2. Features:
The large power NTC thermistor is processed with high purity materials and special techniques. It adopts the overheat resistant installation, and can work continuously under 12A¡«40A steady current. It is one of the power NTC thermistors that have the best surge current suppression capability and the highest workable steady current.
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| 3.Specification: |
4.Dimensions(mm): |
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5.Main Techno-Parameter
Part No |
R 25
£¨¦¸£© |
Max.Steady State Current
£¨A£© |
Approx R of Max.Current At 25¡æ
£¨¦¸£© |
Dissi.Coef.
£¨mW/¡æ£© |
Thermal time Constant
£¨S£© |
Operating Temp
£¨¡æ£© |
MF74-05/40 |
0.5 |
40 |
0.00875 |
118 |
340 |
-55¡«+200 |
MF74-0.7/36 |
0.7 |
36 |
0.0110 |
118 |
340 |
MF74-1/32 |
1 |
32 |
0.0137 |
118 |
340 |
MF74-1.3/27 |
1.3 |
27 |
0.0192 |
118 |
340 |
MF74-1.5/27 |
1.5 |
27 |
0.0206 |
118 |
340 |
MF74-2/25 |
2 |
25 |
0.0240 |
120 |
340 |
MF74-2.5/25 |
2.5 |
25 |
0.0252 |
120 |
350 |
MF74-3/23 |
3 |
23 |
0.0293 |
123 |
350 |
MF74-4/21 |
4 |
21 |
0.0340 |
123 |
350 |
MF74-5/21 |
5 |
21 |
0.0364 |
123 |
350 |
-55¡«+200 |
MF74-6/18 |
6 |
18 |
0.0494 |
123 |
355 |
MF74-8/18 |
8 |
18 |
0.0525 |
125 |
360 |
MF74-10/18 |
10 |
18 |
0.0555 |
125 |
360 |
MF74-12/15 |
12 |
15 |
0.0622 |
125 |
345 |
MF74-16/15 |
16 |
15 |
0.0688 |
125 |
345 |
MF74-20/15 |
20 |
15 |
0.0745 |
125 |
345 |
MF74-25/15 |
25 |
15 |
0.0857 |
125 |
345 |
MF74-30/12 |
30 |
12 |
0.1170 |
125 |
350 |
Remark:Unless the particular indication,the allowable tolerance of R25 is ¡À20%. |
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Add: 179-1 Shuanglong Road,
Chalu Town, Jiangning
District, Nanjing
Postal Code: 211101
Marketing Department:
025-52105493
Switchboard: 025-52121898
025-52121868
Fax: 025-52122373
E-mail:sales@shiheng.com.cn
shi-heng@vip.163.com |
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