Datasheet NTE16001-ECG, NTE16003-ECG, NTE16005-ECG, NTE16006-ECG, NTE16010-ECG Datasheet (NTE)

NTE16000–ECG thru NTE16022–ECG

Polymeric Positive Temperature Coefficient (PTC)

Resettable Fuses

ELECTRICAL CHARACTERISTICS

I

Hold

I

Trip

Initial resistance

1 Hour (R1)

Post–Trip

Resistance

Max. Time

To Trip at 5*lh

Tripped Power

Dissipation

Amperes at 235C Ohms at 235C Ohms at 235C Seconds at 235C Watts at 235C

NTE Type No.

Diag.

No.

V max.

Volts

I max.
Amps

Hold Trip Min. Max Max.

16000–ECG 629 60 40 0.10 0.20 2.50 4.50 7.50 4.0 0.38
16001–ECG 629 60 40 0.17 0.34 2.00 3.20 8.00 3.0 0.48
16002–ECG 629 60 40 0.20 0.40 1.50 2.84 4.40 2.2 0.40
16003–ECG 629 60 40 0.25 0.50 1.00 1.95 3.00 2.5 0.45
16004–ECG 629 60 40 0.30 0.60 0.76 1.36 2.10 3.0 0.50
16005–ECG 629 60 40 0.40 0.80 0.52 0.86 1.29 3.8 0.55
16006–ECG 629 60 40 0.50 1.00 0.41 0.77 1.17 4.0 0.75
16007–ECG 629 60 40 0.65 1.30 0.27 0.48 0.72 5.3 0.90
16008–ECG 629 60 40 0.75 1.50 0.18 0.40 0.60 6.3 0.90
16009–ECG 629 60 40 0.90 1.80 0.14 0.31 0.47 7.2 1.00
16010–ECG 630 30 40 0.90 1.80 0.07 0.12 0.22 5.9 0.60
16011–ECG 629 30 40 1.10 2.20 0.10 0.18 0.27 6.6 0.70
16012–ECG 629 30 40 1.35 2.70 0.065 0.115 0.17 7.3 0.80
16013–ECG 629 30 40 1.60 3.20 0.055 0.105 0.15 8.0 0.90
16014–ECG 629 30 40 1.85 3.70 0.04 0.07 0.11 8.7 1.00
16015–ECG 630 30 40 2.50 5.00 0.025 0.048 0.07 10.3 1.20
16016–ECG 630 30 40 3.00 6.00 0.02 0.05 0.08 10.8 2.00
16017–ECG 630 30 40 4.00 8.00 0.01 0.03 0.05 12.7 2.50
16018–ECG 630 30 40 5.00 10.00 0.01 0.03 0.05 14.5 3.00
16019–ECG 630 30 40 6.00 12.00 0.005 0.02 0.04 16.0 3.50
16020–ECG 630 30 40 7.00 14.00 0.005 0.02 0.03 17.5 3.80
16021–ECG 630 30 40 8.00 16.00 0.005 0.02 0.03 18.8 4.00
16022–ECG 630 30 40 9.00 18.00 0.005 0.01 0.02 *20.0 4.20

* Tested at 40 Amps.

TECHNICAL DATA

Operating/Storage Temperature –40°C to +85°C
Maximum Device Surface Temperature

in Tripped State

+125°C
Passive Aging +85°C, 1000 Hours ±5% Typical Resistance Change
Humidity Aging +85°C, 85% R.H. 1000 Hours ±5% Typical Resistance Change
Thermal Shock +125°C/–40°C 10 Times ±10% Typical Resistance Change
Mechanical Shock MIL–STD–202, Method 213,

Condition 1 (100g, 6 Seconds)

No Resistance Change

Solvent Resistance MIL–STD–202, Method 215 No Change
Vibration MIL–STD–883C, Method 2007.1, Condition A No Change

TEST PROCEDURES AND REQUIREMENTS

Test Test Condition Accept/Reject Criteria

Visual/Mechanical Verify Dimensions and Materials Per PF Physical Description
Resistance In Still Air @ +23°C R

min

≤ R ≤ R

max

Time to Trip 5 Times I

Hold

, V

max

, +23°C T ≤ Max. Time to Trip (Seconds)

Hold Current 30 Min. at I

Hold

No trip

Trip Cycle Life V

max

, I

max

, 100 Cycles No Arcing or Burning

Trip Endurance V

max

, 48 Hours No Arcing or Burning
Solvent Resistance MIL–STD–202, Method 215 No Change
Vibration MIL–STD–883C, Method 2007.1, Condition A No Change

TYPICAL TIME TO TRIP AT +235

0.1 1 10 100

100

10

1

0.1

0.0
1

0.001

Fault Current (Amps)

Time to Trip (Seconds)

THERMAL DERATING CHART – I

HOLD

(Amps) *

Ambient Operating Temperature

NTE Type No.

–405C –205C 05C +235C +405C +505C +605C +705C +855C

NTE16000–ECG 0.16 0.14 0.12 0.10 0.08 0.07 0.06 0.05 0.04
NTE16001–ECG 0.26 0.23 0.20 0.17 0.14 0.12 0.11 0.09 0.07
NTE16002–ECG 0.31 0.27 0.24 0.20 0.16 0.14 0.13 0.11 0.08
NTE16003–ECG 0.39 0.34 0.30 0.25 0.20 0.18 0.16 0.14 0.10
NTE16004–ECG 0.47 0.41 0.36 0.30 0.24 0.22 0.19 0.16 0.12
NTE16005–ECG 0.62 0.54 0.48 0.40 0.32 0.29 0.25 0.22 0.16
NTE16006–ECG 0.78 0.68 0.60 0.50 0.41 0.36 0.32 0.27 0.20
NTE16007–ECG 1.01 0.88 0.77 0.65 0.53 0.47 0.41 0.35 0.26
NTE16008–ECG 1.16 1.02 0.89 0.75 0.61 0.54 0.47 0.41 0.30
NTE16009–ECG 1.40 1.22 1.07 0.90 0.73 0.65 0.57 0.49 0.36
NTE16010–ECG 1.40 1.22 1.07 0.90 0.73 0.65 0.57 0.49 0.36
NTE16011–ECG 1.60 1.43 1.27 1.10 0.91 0.85 0.75 0.67 0.57
NTE16012–ECG 1.96 1.76 1.55 1.35 1.12 1.04 0.92 0.82 0.70
NTE16013–ECG 2.32 2.08 1.84 1.60 1.33 1.23 1.09 0.98 0.83
NTE16014–ECG 2.68 2.41 2.13 1.85 1.54 1.42 1.26 1.13 0.96
NTE16015–ECG 3.63 3.25 2.88 2.50 2.08 1.93 1.70 1.53 1.30
NTE16016–ECG 4.35 3.90 3.45 3.00 2.49 2.31 2.04 1.83 1.56
NTE16017–ECG 5.80 5.20 4.60 4.00 3.32 3.08 2.72 2.44 2.08
NTE16018–ECG 7.25 6.50 5.75 5.00 4.15 3.85 3.40 3.05 2.60
NTE16019–ECG 8.70 7.80 6.90 6.00 4.98 4.62 4.08 3.66 3.12
NTE16020–ECG 10.15 9.10 8.05 7.00 5.81 5.39 4.76 4.27 3.64
NTE16021–ECG 11.60 10.40 9.20 8.00 6.64 6.16 5.44 4.88 4.16
NTE16022–ECG 13.05 11.70 10.35 9.00 7.47 6.39 6.12 5.49 4.68

*I

Trip

= 2 • I

Hold

DIMENSIONAL OUTLINE DRAWINGS

Diagram 629 Diagram 630

NOTE: Shape changes from round to square starting

with NTE16016–ECG.

A

B

C

D

E

E

A

C

B

D

PRODUCT DIMENSIONS (Dimensions are in inches(mm))

A B C D E Physical Characteristice

NTE Type No.

Max. Max. Nom. Tol. + Min. Max. Diag. No. Lead Dia. Material

NTE16000–ECG .290 (7.4) .500 (12.7) .200 (5.1) .027 (0.7) .300 (7.6) .122 (3.1) 629 .020 (0.51) Sn/NiCu
NTE16001–ECG .290 (7.4) .500 (12.7) .200 (5.1) .027 (0.7) .300 (7.6) .122 (3.1) 629 .020 (0.51) Sn/CuFe
NTE16002–ECG .290 (7.4) .500 (12.7) .200 (5.1) .027 (0.7) .300 (7.6) .122 (3.1) 629 .020 (0.51) Sn/CuFe
NTE16003–ECG .290 (7.4) .500 (12.7) .200 (5.1) .027 (0.7) .300 (7.6) .122 (3.1) 629 .020 (0.51) Sn/CuFe
NTE16004–ECG .290 (7.4) .530 (13.4) .200 (5.1) .027 (0.7) .300 (7.6) .122 (3.1) 629 .020 (0.51) Sn/CuFe
NTE16005–ECG .290 (7.4) .540 (13.7) .200 (5.1) .027 (0.7) .300 (7.6) .122 (3.1) 629 .020 (0.51) Sn/CuFe
NTE16006–ECG .310 (7.9) .540 (13.7) .200 (5.1) .027 (0.7) .300 (7.6) .122 (3.1) 629 .020 (0.51) Sn/Cu
NTE16007–ECG .380 (9.7) .600 (15.2) .200 (5.1) .027 (0.7) .300 (7.6) .122 (3.1) 629 .020 (0.51) Sn/Cu
NTE16008–ECG .410 (10.4) .630 (16.0) .200 (5.1) .027 (0.7) .300 (7.6) .122 (3.1) 629 .020 (0.51) Sn/Cu
NTE16009–ECG .460 (11.7) .660 (16.7) .200 (5.1) .027 (0.7) .300 (7.6) .122 (3.1) 629 .020 (0.51) Sn/Cu
NTE16010–ECG .290 (7.4) .480 (12.2) .200 (5.1) .027 (0.7) .300 (7.6) .120 (3.0) 630 .020 (0.51) Sn/Cu
NTE16011–ECG .350 (8.9) .550 (14.0) .200 (5.1) .027 (0.7) .300 (7.6) .120 (3.0) 629 .020 (0.51) Sn/Cu
NTE16012–ECG .350 (8.9) .750 (18.9) .200 (5.1) .027 (0.7) .300 (7.6) .120 (3.0) 629 .020 (0.51) Sn/Cu
NTE16013–ECG .400 (10.2) .660 (16.8) .200 (5.1) .027 (0.7) .300 (7.6) .120 (3.0) 629 .020 (0.51) Sn/Cu
NTE16014–ECG .470 (12.0) .720 (18.4) .200 (5.1) .027 (0.7) .300 (7.6) .120 (3.0) 629 .020 (0.51) Sn/Cu
NTE16015–ECG .470 (12.0) .720 (18.3) .200 (5.1) .027 (0.7) .300 (7.6) .120 (3.0) 630 .030 (0.81) Sn/Cu
NTE16016–ECG .470 (12.0) .720 (18.3) .200 (5.1) .027 (0.7) .300 (7.6) .120 (3.0) 630 .030 (0.81) Sn/Cu
NTE16017–ECG .570 (14.4) .970 (24.8) .200 (5.1) .027 (0.7) .300 (7.6) .120 (3.0) 630 .030 (0.81) Sn/Cu
NTE16018–ECG .690 (17.4) .980 (24.9) .400 (10.2) .027 (0.7) .300 (7.6) .120 (3.0) 630 .030 (0.81) Sn/Cu
NTE16019–ECG .760 (19.3) 1.260 (31.9) .400 (10.2) .027 (0.7) .300 (7.6) .120 (3.0) 630 .030 (0.81) Sn/Cu
NTE16020–ECG .870 (22.1) 1.170 (29.8) .400 (10.2) .027 (0.7) .300 (7.6) .120 (3.0) 630 .030 (0.81) Sn/Cu
NTE16021–ECG .960 (24.2) 1.300 (32.9) .400 (10.2) .027 (0.7) .300 (7.6) .120 (3.0) 630 .030 (0.81) Sn/Cu
NTE16022–ECG .960 (24.2) 1.300 (32.9) .400 (10.2) .027 (0.7) .300 (7.6) .120 (3.0) 630 .030 (0.81) Sn/Cu

RESETTABLE CIRCUIT PROTECTION

When it comes to Polymeric Positive Temperature
Coefficient (PPTC) circuit protection, you now have a
choice.

Polymeric fuses are made from a conductive plastic
formed into thin sheets, with electrodes attached to either
side. The conductive plastic is manufactured from a non–
conductive crystalline polymer and a highly conductive
carbon balck. The electrodes ensure even distribution of
power through the device, and provide a surface for leads
to be attached or for custom mounting.

The phenomenon that allows conductive plastic materi­als to be used for resettable overcurrent protection de­vices is that they exhibit a very large non–linear Positive
Temperature Coefficient (PTC) effect when heated. PTC
is a characteristic that many materials exhibit whereby re­sistance increases with temperature. What makes the
polymeric conductive plastic material unique is the magni­tude of its resistance increase. At a specific transition tem­perature, the increase is resistance is so great that it is typ­ically expressed on a log scale.

HOW POLYMERIC RESETTABLE
OVERCURRENT PROTECTORS WORK

The conductive carbon black filler material in the poly­meric device is dispersed in a polymer that has a crystal­line structure. The crystalline structure densely packs the
carbon particles into its crystalline boundry so they are
close enough together to allow current to flow through the
polymer insulator via these carbon “chains”.

When the conductive plastic material is at normal room
temperature, there are numerous carbon chains forming
conductive paths through the material.

Under fault conditions, excessive current flows through
the polymeric device. I

2

R heating causes the conductive
plastic material’s temperature to rise. As this self heating
continues, the material’s temperature continues to rise
until it exceeds its phase transformation temperature. As
the material passes through this phase transformation
temperature, the densely packed crystalline polymer ma­trix changes to an amorphous structure. This phase
change is accompanied by a small expansion. As the con­ductive particles move apart from each other, most of
them no longer conduct current and the resistance of the
device increases sharply.

0 20 40 60 80 100 120 140

TEMPERATURE °C

10

1

10

0

10

2

10

3

10

4

10

5

10

6

10

7

LOG R OHMS

The material will stay “hot”, remaining in this high resist­ance state as long as the power is applied. The device will
remain latched, providing continuous protection, until the
fault is cleared and the power is removed. Reversing the
phase transformation allows the carbon chains to re–form
as the polymer re–crystallizes. The resistance quickly re-
turns to its original value.

PRODUCT SELECTION

To select the correct polymeric circuit protection device,
complete the imformation listed below for application, and
then refer to thwe resettable overcurrent protector data
sheets.

1. Determine the nromal operating current:
__________ amps

2. Determine the maximum circuit voltage (V

max

):

__________ volts

3. Determine the fault current (I

max

):

__________ amps

4. Determine the operating temperature range:
Minimum Temperature: __________ °C
Maximum Temperature: __________ °C

5. Select a product family so that the maximum rating for
V

max

and I

max

is higher than the maximum circuit volt-

age and fault current in the application.

6. Using the I

Hold

vs. Temperature Table on the product
family data sheet, select the polymeric device at the
maximum operating temperature with an I

Hold

greater

than or equal to the normal operating current.

7. Verify that the selected device will trip under fault con­ditions by checking in the I

Trip

table that the fault cur-

rent is greater than I

Trip

for the selected device, at the

lowest operating temperature.

8. Order samples and test in application.

APPLICATIONS

The benefits of polymeric Resettable Overcurrent Pro­tectors are being recognized by more and more design
engineers, and new applications are being discovered ev­ery day.

The use of polymeric types of devices have been widely
accepted in the following applications and industries:

D Personal computers
D Laptop computers
D Personal digital assistants
D Transformers
D Small and medium electric motors
D Audio equipment and speakers
D Test and measurement equipment
D Security and fire alarm systems
D Personal care products
D Point–of–sale equipment
D Industrial controls
D Automotive electronics and harness protection
D Marine electronics
D Battery–operated toys