Hot Selling for Transient Protection Diode - Negative Temperature Coefficient Resistor – Ruilongyuan

Hot Selling for Transient Protection Diode - Negative Temperature Coefficient Resistor – Ruilongyuan

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Hot Selling for Transient Protection Diode - Negative Temperature Coefficient Resistor – Ruilongyuan Detail:

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

Part Number Code

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

  1. Do not exposing the components to the following conditions, otherwise, it may result in deterioration of characteristics
  2. Corrosive gas or deoxidizing gas
  3. Flammable and explosive gases
  4. Oil, water and chemical liquid
  5. Under the sunlight

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

Graph of Characteristics
Product Dimensions

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


Product detail pictures:

Hot Selling for Transient Protection Diode - Negative Temperature Coefficient Resistor – Ruilongyuan detail pictures


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  • Sales manager is very enthusiastic and professional, gave us a great concessions and product quality is very good,thank you very much!
    5 Stars By Kristin from Kazakhstan - 2017.10.25 15:53
    This company has a lot of ready-made options to choose and also could custom new program according to our demand, which is very nice to meet our needs.
    5 Stars By Queena from panama - 2018.09.12 17:18
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