Small size, large power, strong capacity of suppression of inrush current
Fast resporse
Big material constant(B value),small residual resistance
Long life and high reliability
Complete series, wide applications
Switching power-supply, switch power ,ups power
Electronic energy saving lamps electronic ballast and all kinds of electric heater
All kinds of RT, display
Bulb and other lighting lamps
Item |
name |
Wrapper |
Modified phenolic resin |
Down-lead |
CP Wire |
Coating color |
Black |
Model |
R25 (Ω) |
Max. steady State current (A) |
Residual Resistance (Ω) |
Dissipation factor (mw/℃) |
Themal time Constant (s) |
Max. allowabl capacity value 240V/120V (μF) |
B (K) |
Operating Temperature (℃) |
NTC5D-5 |
5 |
1 |
0.35 |
≈6 |
≈20 |
150/560 |
2700 |
-40~+150 |
NTC8D-5 |
8 |
0.7 |
0.77 |
≈6 |
≈20 |
100/390 |
2700 |
|
NTC10D-5 |
10 |
0.7 |
0.77 |
≈6 |
≈20 |
68/270 |
2700 |
|
NTC20D-5 |
20 |
0.5 |
0.997 |
≈6 |
≈20 |
39/150 |
2800 |
|
NTC33D-5 |
33 |
0.5 |
1.88 |
≈6 |
≈20 |
39/150 |
2950 |
|
NTC5D-7 |
5 |
2 |
0.28 |
≈9 |
≈30 |
100/390 |
2700 |
|
NTC8D-7 |
8 |
1 |
0.54 |
≈9 |
≈30 |
100/390 |
2700 |
|
NTC10D-7 |
10 |
1 |
0.62 |
≈9 |
≈30 |
100/390 |
2700 |
|
NTC12D-7 |
12 |
1 |
0.82 |
≈9 |
≈30 |
82/330 |
2700 |
|
NTC16D-7 |
16 |
0.7 |
1.00 |
≈9 |
≈30 |
82/330 |
2800 |
|
NTC20D-7 |
20 |
0.6 |
1.11 |
≈9 |
≈30 |
82/330 |
2800 |
|
NTC22D-7 |
22 |
0.6 |
1.11 |
≈9 |
≈30 |
68/270 |
2800 |
|
NTC33D-7 |
33 |
0.5 |
1.49 |
≈9 |
≈30 |
68/270 |
2950 |
|
NTC3D-9 |
3 |
4 |
0.12 |
≈11 |
≈35 |
220/820 |
2600 |
-40~+175 |
NTC5D-9 |
5 |
3 |
0.21 |
≈11 |
≈35 |
220/820 |
2700 |
|
NTC6D-9 |
6 |
2 |
0.32 |
≈11 |
≈35 |
220/820 |
2700 |
|
NTC8D-9 |
8 |
2 |
0.40 |
≈11 |
≈35 |
150/560 |
2700 |
|
NTC10D-9 |
10 |
2 |
0.46 |
≈11 |
≈35 |
150/560 |
2700 |
|
NTC12D-9 |
12 |
1 |
0.66 |
≈11 |
≈35 |
150/560 |
2700 |
|
NTC15D-9 |
15 |
1 |
0.80 |
≈11 |
≈35 |
150/560 |
2800 |
|
NTC16D-9 |
16 |
1 |
0.80 |
≈11 |
≈35 |
82/330 |
2800 |
|
NTC20D-9 |
20 |
1 |
0.88 |
≈11 |
≈35 |
82/330 |
2800 |
|
NTC22D-9 |
22 |
1 |
0.95 |
≈11 |
≈35 |
82/330 |
2800 |
|
NTC33D-9 |
33 |
1 |
1.12 |
≈11 |
≈35 |
68/270 |
2950 |
|
NTC50D-9 |
50 |
1 |
1.25 |
≈11 |
≈35 |
68/270 |
2950 |
|
NTC100D-9 |
100 |
0.8 |
3.02 |
≈11 |
≈35 |
68/270 |
3200 |
|
NTC120D-9 |
120 |
0.8 |
3.02 |
≈11 |
≈35 |
68/270 |
3200 |
|
NTC2.5D-11 |
2.5 |
5 |
0.10 |
≈14 |
≈50 |
680/2700 |
2700 |
|
NTC3D-11 |
3 |
5 |
0.10 |
≈14 |
≈50 |
680/2700 |
2700 |
|
NTC5D-11 |
5 |
4 |
0.16 |
≈14 |
≈50 |
470/1800 |
2700 |
|
NTC8D-11 |
8 |
3 |
0.25 |
≈14 |
≈50 |
470/1800 |
2800 |
|
NTC10D-11 |
10 |
3 |
0.28 |
≈14 |
≈50 |
220/820 |
2800 |
|
NTC12D-11 |
12 |
2 |
0.46 |
≈14 |
≈50 |
220/820 |
2800 |
|
NTC15D-11 |
15 |
2 |
0.47 |
≈14 |
≈50 |
150/560 |
2800 |
|
NTC16D-11 |
16 |
2 |
0.47 |
≈14 |
≈50 |
150/560 |
2800 |
|
NTC20D-11 |
20 |
2 |
0.51 |
≈14 |
≈50 |
100/390 |
2950 |
|
NTC22D-11 |
22 |
2 |
0.56 |
≈14 |
≈50 |
100/390 |
2950 |
|
NTC33D-11 |
33 |
1.5 |
0.67 |
≈14 |
≈50 |
100/390 |
2950 |
|
NTC47D-11 |
47 |
1.5 |
1.02 |
≈14 |
≈50 |
100/390 |
2950 |
|
NTC50D-11 |
50 |
1.5 |
1.02 |
≈14 |
≈50 |
100/390 |
2950 |
Model |
R25 (Ω) |
Max. steady State current (A) |
Residual Resistance (Ω) |
Dissipation factor (mw/℃) |
Themal time Constant (s) |
Max. allowabl capacity value 240V/120V (μF) |
B (K) |
Operating Temperature (℃) |
NTC2.5D-13 |
2.5 |
6 |
0.088 |
≈15 |
≈68 |
680/2700 |
2600 |
-40~+200 |
NTC3D-13 |
3 |
6 |
0.092 |
≈15 |
≈68 |
680/2700 |
2600 |
|
NTC4.7D-13 |
4.7 |
5 |
0.12 |
≈15 |
≈68 |
680/2700 |
2700 |
|
NTC5D-13 |
5 |
5 |
0.125 |
≈15 |
≈68 |
680/2700 |
2700 |
|
NTC8D-13 |
8 |
4 |
0.194 |
≈15 |
≈68 |
330/1200 |
2800 |
|
NTC10D-13 |
10 |
4 |
0.206 |
≈15 |
≈68 |
330/1200 |
2800 |
|
NTC16D-13 |
16 |
3 |
0.335 |
≈15 |
≈68 |
220/820 |
2800 |
|
NTC18D-13 |
18 |
3 |
0.372 |
≈15 |
≈68 |
220/820 |
2800 |
|
NTC20D-13 |
20 |
3 |
0.372 |
≈15 |
≈68 |
220/820 |
2800 |
|
NTC30D-13 |
30 |
2.5 |
0.517 |
≈15 |
≈68 |
150/560 |
2950 |
|
NTC47D-13 |
47 |
2 |
0.81 |
≈15 |
≈68 |
150/560 |
2950 |
|
NTC1.5D-15 |
1.5 |
8 |
0.071 |
≈18 |
≈86 |
820/3300 |
2600 |
|
NTC2.5D-15 |
2.5 |
8 |
0.071 |
≈18 |
≈86 |
820/3300 |
2600 |
|
NTC3D-15 |
3 |
7 |
0.075 |
≈18 |
≈86 |
820/3300 |
2600 |
|
NTC5D-15 |
5 |
6 |
0.112 |
≈18 |
≈86 |
680/2700 |
2800 |
|
NTC7D-15 |
7 |
5 |
0.173 |
≈18 |
≈86 |
680/2700 |
2800 |
|
NTC8D-15 |
8 |
5 |
0.178 |
≈18 |
≈86 |
680/2700 |
2950 |
|
NTC10D-15 |
10 |
5 |
0.18 |
≈18 |
≈86 |
560/2200 |
2950 |
|
NTC15D-15 |
15 |
4 |
0.268 |
≈18 |
≈86 |
560/2200 |
2950 |
|
NTC16D-15 |
16 |
4 |
0.268 |
≈18 |
≈86 |
560/2200 |
2950 |
|
NTC18D-15 |
18 |
4 |
0.288 |
≈18 |
≈86 |
330/1200 |
2950 |
|
NTC20D-15 |
20 |
4 |
0.288 |
≈18 |
≈86 |
220/820 |
2950 |
|
NTC30D-15 |
30 |
3.5 |
0.438 |
≈18 |
≈86 |
220/820 |
2950 |
|
NTC47D-15 |
47 |
3 |
0.68 |
≈18 |
≈86 |
220/820 |
3200 |
|
NTC50D-15 |
50 |
3 |
0.72 |
≈18 |
≈86 |
220/820 |
3200 |
|
NTC1.3D-20 |
1.3 |
9 |
0.037 |
≈24 |
≈113 |
820/3300 |
2600 |
|
NTC1.5D-20 |
1.5 |
9 |
0.037 |
≈24 |
≈113 |
820/3300 |
2600 |
|
NTC2.5D-20 |
2.5 |
8 |
0.049 |
≈24 |
≈113 |
820/3300 |
2700 |
|
NTC3D-20 |
3 |
8 |
0.055 |
≈24 |
≈113 |
820/3300 |
2700 |
|
NTC5D-20 |
5 |
7 |
0.087 |
≈24 |
≈113 |
820/3300 |
2800 |
|
NTC8D-20 |
8 |
6 |
0.142 |
≈24 |
≈113 |
820/3300 |
2950 |
|
NTC10D-20 |
10 |
6 |
0.162 |
≈24 |
≈113 |
820/3300 |
2950 |
|
NTC16D-20 |
16 |
5 |
0.212 |
≈24 |
≈113 |
820/3300 |
3200 |
|
NTC20D-20 |
20 |
4 |
0.231 |
≈24 |
≈113 |
820/3300 |
3200 |
Temperature |
-10℃~+40℃ |
Humidity |
≤70%RH |
Term |
≤12 months (First-in/ First-out) |
Place |
|
Notes: Do not apply the components under the following conditions, otherwise, it may result in deterioration of characteristics, destruction of components orin the worst case to catching fire:1. Exceeding Imax
2. Exceeding rated temperature range
3. Inferior thermal dissipation,Due to badly inferior thermal dissipation, some part of the components body will become overheated and then be damaged
Mechanical Characteristics |
||
Item |
Specification |
Test Conditions & Methods |
Solder-ability |
The terminals shall be uniformly tinned, and its area≥95% |
Dipping the NTC terminals to a depth of 15mm in a soldering bath of 240-245℃ and to the place of 6mm far from NTC body for 2-3s (See IEC68-2-20 /GB2423.28 Ta ) |
Resistance To Soldering Heat |
No visible mechanical damage. ΔR/RN ≤20% (ΔR =∣RN-RN’∣) |
Dipping the NTC terminals to a depth of 15mm in a soldering bath of 265±5℃ and to the place for 6mm below from NTC body for 10±1s.After recovering 4-5h under 25±2℃. The rated zero power resistance value RN’ shall be measured. (See IEC68-2-20 /GB2423.28 Tb) |
Strength of lead terminal |
No break out ΔR/RN ≤20% (ΔR =∣RN-RN’∣) |
Fasten the body and apply a force gradually to each lead until 10N and then keep for 10sec, Hold body and apply a force to each lead until 90°slowly at 5N in the direction of lead axis and then keep for 10sec, and do this in the opposite direction repeat for other terminal. After recovering 4~5h under 25±2℃, the rated zero power resistance value RN’ shall be measured. (See IEC68-2-21/GB2423.29 Ua / Ub) |
Mechanical Characteristics |
||
Item |
Specification |
Test Conditions & Methods |
Solder-ability |
The terminals shall be uniformly tinned, and its area≥95% |
Dipping the NTC terminals to a depth of 15mm in a soldering bath of 240-245℃ and to the place of 6mm far from NTC body for 2-3s (See IEC68-2-20 /GB2423.28 Ta ) |
Resistance To Soldering Heat |
No visible mechanical damage. ΔR/RN ≤20% (ΔR =∣RN-RN’∣) |
Dipping the NTC terminals to a depth of 15mm in a soldering bath of 265±5℃ and to the place for 6mm below from NTC body for 10±1s.After recovering 4-5h under 25±2℃. The rated zero power resistance value RN’ shall be measured. (See IEC68-2-20 /GB2423.28 Tb) |
Strength of lead terminal |
No break out ΔR/RN ≤20% (ΔR =∣RN-RN’∣) |
Fasten the body and apply a force gradually to each lead until 10N and then keep for 10sec, Hold body and apply a force to each lead until 90°slowly at 5N in the direction of lead axis and then keep for 10sec, and do this in the opposite direction repeat for other terminal. After recovering 4~5h under 25±2℃, the rated zero power resistance value RN’ shall be measured. (See IEC68-2-21/GB2423.29 Ua / Ub) |
Electrical Characteristics |
||
Item |
Specification |
Test Conditions & Method |
Rated Zero-Power Resistance RN (Ω) |
RN±20% |
Ambient temp. Range:25℃±2℃(TA). Testing voltage: 1.5VDC After placing for 1~2 hours under TA, the resistance value shall be measured |
Thermal Dissipation Constant δ (mW/℃) |
See the main technical parameter list |
The thermal dissipation constant(δ) could be calculated by the ratio of a change in power dissipation(ΔP) of the thermistor to a change in temperature(ΔT) of the thermistor at a specified ambient temperature |
Thermal Time Constant T(s) |
See the main technical parameter list |
The time(τ shall be measured within which the temperature change of NTC thermistor is reached at 63.2% of the ambient temperature change under zero power condition |
Material Constant B |
B=T1T2/( T2- T1) × Ln (R1/R2) |
R1 , R2 is zero-power resistance at T1 , T2 T1 = 298.15 K(25℃) T2 = 323.15 K(50℃) |
Max. Steady State Current (A) |
visible mechanical damage. ΔRN / RN ≤20% (ΔR =∣RN-RN’∣) |
ambient temperature:25℃±2℃ Testing Time: min 100h |
Reliability Test |
||
Item |
Specification |
Test Conditions & Methods |
Temp. Cycling Testing |
No visible mechanical damage. ΔRN / RN ≤20% (ΔR =∣RN-RN’∣) |
Ta:-40±3℃/ 30min→25±2℃/ 5min→Tb:200±3℃/30min→ 25±2℃/ 5min Cycles: 5times After recovering 4~5 h under 25±2℃, the rated zero power resistance value RN’ shall be measured. |
Electrical Cycling Testing |
No visible mechanical damage. ΔRN / RN ≤20% (ΔR =∣RN-RN’∣) |
Ambient temp. Range:25℃±2℃. Cycles: 1,000times On / Off: 1m / 5m Test Current: 6.0A After recovering 4~5h under 25±2℃, the rated zero power resistance value RN’ shall be measured. |
LoadLife ( Endurance ) Testing |
No visible mechanical damage. ΔRN / RN ≤20% (ΔR =∣RN-RN’∣) |
Ambient temp. Range:25℃±2℃; 6.0A/ 1,000±24h After recovering 4~5 h under 25±2℃, the rated zero power resistance value RN’ shall be measured. |
Humidity Testing |
No visible mechanical damage. ΔRN / RN ≤20% (ΔR =∣RN-RN’∣) |
Ambient temp. range : 40℃±2℃,R.H.:93±3% , Energized time:1000±24 h After recovering 4~5 h under 25±2℃, the rated zero power resistance value RN’ shall be measured |
Dimension |
Dimensions (mm) |
|||||||
D(max) |
T(max) |
Φd±0.1 |
F1±1 |
F2±1.5 |
Straight Lead Wire |
Curved Lead Wire |
||
L(min) |
L1±0.5 |
L2±2 |
||||||
NTCxxD-5 |
7 |
5 |
0.55 |
5 |
3 |
15 |
3.5 〜20 |
7/4 |
NTCxxD-7 |
9 |
5 |
0.55 |
5 |
3 |
|||
NTCxxD-9 |
11 |
5.5 |
0.75/0.55 |
7.5/5 |
5/3 |
|||
NTCxxD-11 |
13 |
5.5 |
0.75 |
7.5/5 |
5/3 |
|||
NTCxxD-13 |
15.5 |
6 |
0.75 |
7.5 |
5 |
|||
NTCxxD-15 |
17.5 |
6 |
0.75 |
10/7.5 |
5 |
|||
NTCxxD-20 |
22.5 |
7 |
1.00 |
10/7.5 |
/ |
15 |
/ |
1 |
Dimension |
Bag (pcs) |
Inside the box (pcs) |
carton (pcs) |
NTCxxD-5 / NTCxxD-7 |
1000 |
3000 |
18000 |
NTCxxD-9 / NTCxxD-11 |
500 |
2000 |
12000 |
NTCxxD-13 / NTCxxD-15 |
250 |
1000 |
6000 |
NTCxxD-20 |
100 |
400 |
2400 |