Model: | NTC |
---|---|
Brand: | zhengli |
Origin: | Made In China |
Category: | Electronics & Electricity / Electronic Components / Resistor |
Label: | thermistor , NTC thermistor , NTC |
Price: |
US $0.05
/ pc
|
Min. Order: | 500 pc |
NTC thermistor
1.Power NTC thermistor introduction
Power NTC thermistor has en excellent non-linearity characteristic for the resistance and temperature ,its appliance is an easy and effective method to protect electronic device through surge current restraining .
2.Resistance and temperature characteristic of power NTC thermistor
Power NTC thermistor can effectively restrain the surge current in the circuit ,and its resistance will fall down to a very small state through the current durative and the power consumption is commonly ignored , the voltage will be borne by the rear divice so that to guarantee the normal function of circuit .
The intergradations metal oxide as the main material , power NTC thermistor is a kind of semi-conductive component manufactured by the ceramic productive process technique ,it belongs to the category of negative thermistor series .
3.Range of application
Power NTC thermistor are widely applied in switch power ,conversion power supply ,UPS power and electronic rectifier ,heater ,etc , it has a protected function for RT ,display ,lighting device and circuit of different electronic equipments .
4.Nomenclature explanation
5.Characteristic of power NTC thermistor
1.Meet the environmental requirements of ROHS.
2.Low cost and quality stability.
3.Power NTC thermistors are in small size but with a high power that to restrain the surge current .
4.Powe NTC thermistors possesse the electronic character of fast reflection ,high reliability and long-life time for use.
5.The material has a high constant as B value with small remained resistance .
6.Power NTC thermistors have a large application range integrate products series .
6.Characteristic of power NTC thermistor
1.The muaximum working current(Imax)>actual operating current in the power loop.
2.Power resistor nominal resistance R: R≥1.414E/Im.
E:line voltage
Im:surge current for power Im=100 times the working current ; for the heating wire , heater circuit Im=30 times operating current.
3.The bigger the B value is , the less the residual resistance ,the lower the temperature rise.In general , the bigger the product of the time constant and dissipation coefficient ,the larger the heat capacity of resistor , the stronger the ability to suppress the surge current of resistor .
7.Recognized standards and certificates
Recognized organization |
Recognized marks |
Recognized standard |
Certificates series No |
UL CUL |
|
|
E361907 |
8.Dimensions
Specifications |
Diameter Dmax |
Thickness Tmax |
Lead space F±1 |
Lead diameter d±0.05 |
Straight lead Lmin |
DRMΔD-5 |
6.5 |
4.0 |
5.0/2.5 |
0.55/0.45 |
25 |
DRMΔD-7 |
8.5 |
4.5 |
5.0 |
0.55 |
25 |
DRMΔD-9 |
10.5 |
5.0 |
7.5/5.0 |
0.75/0.55 |
25 |
DRMΔD-11 |
12.5 |
5.0 |
7.5/5.0 |
0.75 |
25 |
DRMΔD-13 |
14.5 |
6.0 |
7.5 |
0.75 |
25 |
DRMΔD-15 |
16.5 |
6.5 |
7.5 |
0.75 |
25 |
DRMΔD-20 |
21.5 |
7.0 |
10/7.5 |
1.0 |
25 |
DRMΔD-25 |
27.5 |
8.0 |
10 |
1.0 |
25 |
9.Packing type and quantity
Bulk packing with a lable of technical specification inside .
Size |
DRM ΔD-5 |
DRM ΔD-7 |
DRM ΔD-9 |
DRM ΔD-11 |
DRM ΔD-13 |
DRM ΔD-15 |
DRM ΔD-20 |
DRM ΔD-25 |
MPQ (pcs/bag) |
1000 |
1000 |
500 |
500 |
250 |
250 |
100 |
50 |
11.Main technical parameters of D-5
type |
Rated zero-power resistance R25 (Ω) |
residual resistance under maximum steady-state current at 25℃ (Ω) |
B25/85 (k) |
Current (A) |
Max load capacitance (uf) 120VAC |
Max load capacitance (uf) 240VAC |
Thermal time constant (s) |
Dissipation factor (mw/℃) |
Temperature Range (℃) |
Approvals UL/CUL |
|
Maximum steady-state current at 25℃ Imax |
Iss |
||||||||||
5D-5 |
5 |
0.5841 |
2700 |
1 |
1 |
150 |
39 |
<18 |
>6 |
-40 ~ +150 |
√ |
10D-5 |
10 |
1.039 |
2700 |
0.7 |
0.7 |
150 |
39 |
||||
15D-5 |
15 |
1.53 |
2800 |
0.6 |
0.6 |
150 |
39 |
||||
20D-5 |
20 |
2.02 |
2800 |
0.6 |
0.6 |
150 |
39 |
||||
22D-5 |
22 |
2.06 |
2800 |
0.6 |
0.6 |
150 |
39 |
||||
30D-5 |
30 |
2.227 |
2800 |
0.5 |
0.5 |
150 |
39 |
||||
33D-5 |
33 |
2.436 |
2800 |
0.5 |
0.5 |
150 |
39 |
||||
50D-5 |
50 |
2.653 |
3000 |
0.4 |
0.4 |
150 |
39 |
||||
60D-5 |
60 |
2.753 |
3000 |
0.3 |
0.3 |
150 |
39 |
12.Main technical parameters of D-7
type |
Rated zero-power resistance R25 (Ω) |
residual resistance under maximum steady-state current at 25℃ (Ω) |
B25/85 (k) |
Current (A) |
Max load capacitance (uf) 120VAC |
Max load capacitance (uf) 240VAC |
Thermal time constant (s) |
Dissipation factor (mw/℃) |
Temperature Range (℃) |
Approvals UL/CUL |
|
Maximum steady-state current at 25℃ Imax |
Iss |
||||||||||
3D-7 |
3 |
0.206 |
2700 |
3 |
3 |
|
|
<30 |
>9 |
-40 ~ +150 |
√ |
5D-7 |
5 |
0.2864 |
2700 |
2 |
2 |
180 |
47 |
||||
8D-7 |
8 |
0.7353 |
2800 |
1 |
1 |
180 |
47 |
||||
10D-7 |
10 |
0.7885 |
2800 |
1 |
1 |
180 |
47 |
||||
12D-7 |
12 |
1.18 |
2800 |
0.7 |
0.7 |
390 |
100 |
||||
16D-7 |
16 |
1.56 |
3000 |
0.7 |
0.7 |
390 |
100 |
||||
20D-7 |
20 |
1.9877 |
3000 |
0.6 |
0.6 |
390 |
100 |
||||
22D-7 |
22 |
1.95 |
3000 |
0.6 |
0.6 |
390 |
100 |
||||
30D-7 |
30 |
3.7059 |
3000 |
0.5 |
0.5 |
390 |
100 |
||||
33D-7 |
33 |
3.8878 |
3000 |
0.2 |
0.2 |
390 |
100 |
||||
50D-7 |
50 |
6.465 |
3000 |
0.3 |
0.3 |
390 |
100 |
13.Main technical parameters of D-9
type |
Rated zero-power resistance R25 (Ω) |
residual resistance under maximum steady-state current at 25℃ (Ω) |
B25/85 (k) |
Current (A) |
Max load capacitance (uf) 120VAC |
Max load capacitance (uf) 240VAC |
Thermal time constant (s) |
Dissipation factor (mw/℃) |
Temperature Range (℃) |
Approvals UL/CUL |
|
Maximum steady-state current at 25℃ Imax |
Iss |
||||||||||
2.5D-9 |
2.5 |
0.1397 |
2700 |
4 |
4 |
|
|
<35 |
>11 |
-40 ~ +170 |
√ |
3D-9 |
3 |
0.1456 |
2700 |
4 |
4 |
270 |
68 |
||||
4D-9 |
4 |
0.2541 |
2700 |
3 |
3 |
270 |
68 |
||||
5D-9 |
5 |
0.2641 |
2700 |
3 |
3 |
270 |
68 |
||||
6D-9 |
6 |
0.3582 |
2700 |
2 |
2 |
270 |
68 |
||||
7D-9 |
7 |
0.3265 |
2800 |
2 |
2 |
390 |
100 |
||||
8D-9 |
8 |
0.3731 |
2800 |
2 |
2 |
390 |
100 |
||||
10D-9 |
10 |
0.398 |
2800 |
2 |
2 |
390 |
100 |
||||
12D-9 |
12 |
0.989 |
2800 |
1 |
1 |
390 |
100 |
||||
16D-9 |
16 |
1.041 |
3000 |
1 |
1 |
390 |
100 |
||||
20D-9 |
20 |
1.173 |
3000 |
1 |
1 |
560 |
150 |
||||
22D-9 |
22 |
1.2346 |
3000 |
1 |
1 |
560 |
150 |
||||
30D-9 |
30 |
1.32 |
3000 |
1 |
1 |
560 |
150 |
||||
33D-9 |
33 |
1.431 |
3000 |
1 |
1 |
560 |
150 |
||||
50D-9 |
50 |
1.48 |
3100 |
1 |
1 |
560 |
150 |
||||
60D-9 |
60 |
1.641 |
3100 |
0.8 |
0.8 |
560 |
150 |
||||
80D-9 |
80 |
2.187 |
3200 |
0.8 |
0.8 |
270 |
68 |
||||
120D-9 |
120 |
3.281 |
3200 |
0.8 |
0.8 |
270 |
68 |
||||
200D-9 |
200 |
5.469 |
3200 |
0.5 |
0.5 |
270 |
68 |
14.Main technical parameters of D-11
type |
Rated zero-power resistance R25 (Ω) |
residual resistance under maximum steady-state current at 25℃ (Ω) |
B25/85 (k) |
Current (A) |
Max load capacitance (uf) 120VAC |
Max load capacitance (uf) 240VAC |
Thermal time constant (s) |
Dissipation factor (mw/℃) |
Temperature Range (℃) |
Approvals UL/CUL |
|
Maximum steady-state current at 25℃ Imax |
Iss |
||||||||||
1D-11 |
1 |
0.1205 |
2600 |
5 |
5 |
|
|
<55 |
>13 |
-40 ~ +170 |
√ |
1.5D-11 |
1.5 |
0.126 |
2600 |
5 |
5 |
|
|
||||
2.5D-11 |
2.5 |
0.126 |
2700 |
5 |
5 |
270 |
68 |
||||
3D-11 |
3 |
0.1263 |
2700 |
5 |
5 |
270 |
68 |
||||
4D-11 |
4 |
0.2005 |
2700 |
4 |
4 |
820 |
220 |
||||
5D-11 |
5 |
0.2052 |
2700 |
4 |
4 |
820 |
220 |
||||
6D-11 |
6 |
0.2977 |
2700 |
3 |
3 |
1200 |
330 |
||||
7D-11 |
7 |
0.2824 |
2800 |
3 |
3 |
1200 |
330 |
||||
8D-11 |
8 |
0.2591 |
2800 |
3 |
3 |
1200 |
330 |
||||
10D-11 |
10 |
0.2676 |
2800 |
3 |
3 |
1200 |
330 |
||||
12D-11 |
12 |
0.3467 |
2800 |
2 |
2 |
1200 |
330 |
||||
15D-11 |
15 |
0.485 |
3000 |
2 |
2 |
1200 |
330 |
||||
16D-11 |
16 |
0.5 |
3000 |
2 |
2 |
1200 |
330 |
||||
20D-11 |
20 |
0.59 |
3000 |
2 |
2 |
1200 |
330 |
||||
22D-11 |
22 |
0.5903 |
3000 |
2 |
2 |
1200 |
330 |
||||
25D-11 |
25 |
0.602 |
3000 |
1.5 |
1.5 |
1200 |
330 |
||||
30D-11 |
30 |
0.722 |
3000 |
1.5 |
1.5 |
1200 |
330 |
||||
33D-11 |
33 |
0.795 |
3000 |
1.5 |
1.5 |
1200 |
330 |
||||
47D-11 |
47 |
1.165 |
3200 |
2 |
2 |
1200 |
330 |
||||
50D-11 |
50 |
1.241 |
3200 |
2 |
2 |
1200 |
330 |
||||
60D-11 |
60 |
1.489 |
3200 |
1 |
1 |
1200 |
330 |
||||
80D-11 |
80 |
1.986 |
3200 |
1 |
1 |
1500 |
390 |
||||
120D-11 |
120 |
2.979 |
3200 |
0.8 |
0.8 |
1500 |
390 |
15.Main technical parameters of D-13
type |
Rated zero-power resistance R25 (Ω) |
residual resistance under maximum steady-state current at 25℃ (Ω) |
B25/85 (k) |
Current (A) |
Max load capacitance (uf) 120VAC |
Max load capacitance (uf) 240VAC |
Thermal time constant (s) |
Dissipation factor (mw/℃) |
Temperature Range (℃) |
Approvals UL/CUL |
|
Maximum steady-state current at 25℃ Imax |
Iss |
||||||||||
1.3D-13 |
zhengli group company limited | |
---|---|
Country/Region: | Guang Dong - China |
Business Nature: | Manufacturer |
Phone: | 15989620927 |
Contact: | fanli (sales) |
Last Online: | 23 Mar, 2016 |