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专业生产过流保护元件、高分子PTC、自恢复保险丝

产品名称

SMD1210

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产品描述

Positive Temperature Coefficient (PTC) Data Sheet

 

Description

 

The 1210 series provides miniature suSRace mount resettable overcurrent protection

with holding current from 0.05A to 2.0A. This series is suitable for wide range of

applications in modern electronics where space is limited.

 

Features

 

 RoHS compliant and lead-free

 Halogen-free

 Compact design saves board space

 Low profile

 Fast response to fault current

 Compatible with high temperature solders

 

Applications

 

 Mobile phones and PDAs

 Battery PCM

 USB hubs, ports and peripherals

 Set-top-box and HDMI

 Game console port protection

 General electronics

 

 

Electrical Characteristics

 

Model

 

Ihold

(A)

 

Itrip

(A)

 

Vmax

(Vdc)

 

Imax

(A)

 

Pd typ. 

(W)

 

Maximum

Time To Trip

Resistance

Current

(A)

Time

(Sec.)

Rmin

(Ω)

R1max

(Ω)

SMD1210SR005

0.05

0.15

30.0

100

0.6

0.25

1.50

2.800

50.000

SMD1210SR010

0.10

0.30

30.0

100

0.6

0.50

0.60

0.800

15.000

SMD1210SR020

0.20

0.40

30.0

100

0.6

8.0

0.02

0.400

5.000

SMD1210SR035

0.35

0.75

6.0

100

0.6

8.0

0.20

0.200

1.300

SMD1210SR035/16

0.35

0.75

16.0

100

0.6

8.0

0.20

0.200

1.300

SMD1210SR050

0.50

1.00

13.2

100

0.6

8.0

0.10

0.180

0.900

SMD1210SR050/24

0.50

1.00

24.0

100

0.6

8.0

0.10

0.180

0.900

SMD1210SR075

0.75

1.50

6.0

100

0.6

8.0

0.10

0.070

0.400

SMD1210SR075/16

0.75

1.50

16.0

100

0.6

8.0

0.10

0.070

0.400

SMD1210SR110

1.10

2.20

6.0

100

0.6

8.0

0.30

0.050

0.210

SMD1210SR150

1.50

3.00

6.0

100

0.6

8.0

0.50

0.030

0.110

SMD1210SR150/12

1.50

3.00

12.0

100

0.6

8.0

0.50

0.030

0.110

SMD1210SR175

1.75

3.50

6.0

100

0.8

8.0

0.60

0.020

0.080

SMD1210SR200

2.00

4.00

6.0

100

0.8

8.0

1.00

0.015

0.070

SMD1210SR260

2.60

5.20

6.0

100

0.8

8.0

2.00

0.010

0.060

 

 

 

Note on Electrical Characteristics

 Vocabulary

·Ihold = Hold current: maximum current device will pass without tripping in 23℃ still air.

·Itrip = Trip current: minimum current at which the device will trip in 23℃ still air.

·Vmax = Maximum voltage device can withstand without damage at rated current (Imax)

·Imax = Maximum fault current device can withstand without damage at rated voltage (Vmax)

·Pd typ. = Typical power dissipated from device when in the tripped state at 23 still air.

·Rmin = Minimum resistance of device in initial (un-soldered) state.

·R1max = Maximum resistance of device at 23 measured one hour after tripping or reflow soldering of 260 for 20 sec.

 Value specified is determined by using the PWB with 0.030*1.5oz copper traces.

 Caution: Operation beyond the specified rating may result in damage and possible arcing and flame.

 Specifications are subject to change without notice.

 

Polymeric PTC Selecting Guide

 

 Determine the following operating parameters for the circuits:

·Normal operating current (Ihold)

·Maximum interrupt current (Imax)

·Maximum circuit voltage (Vmax)

·Normal operating temperature surrounding device (min/max)

 Select the device from factor and dimension suitable for the application

 Compare the maximum rating for Vmax and Imax of the PPTC device with the circuit in application and make sure

the circuit’s requirement does not exceed the device rating.

 Check that PPTC devices trip time (time-to-trip) will protect the circuit.

 Verify that the circuit operating temperature is within the PPTC devices normal operating temperature range.

 Verify that peSRormance and suitability of the chosen PPTC device in the application.


WARNING

 Mechanical Stress

·PPTC devices will undergo a thermal expansion during fault condition. If PPTC devices are installed or placed in an application

where the space between PPTC devices and the surrounding materials (e.g., covering materials, packaging materials, encapsulate

materials and the like) is insufficient, it will cause an inhibiting effect upon the thermal expansion. Pressing, twisting, bending and

other kinds of mechanical stress will also adversely affect the peSRormance of the PPTC devices, and shall not be used or applied.

 Chemical Pollutants

·Silicone-based oils, oils, solvents, gels, electrolytes, fuels, acids, and the like will adversely affect the properties of PPTC devices,

   and shall not be used or applied.

 Electronic and Thermal Effect

·PPTC devices are secondary protection devices and are used solely for sporadic, accidental over-current or over-temperature

error condition, and shall NOT be used if or when constant or repeated fault conditions (such fault conditions may be caused by,

among others, incorrect pin-connection of a connector) or over-extensive trip events may occur.

   ·PPTC devices are different from fuses and, when a fault condition occurs, will go into high-resistance state and do not open

circuit, in which case the voltage at such PPTC devices may reach a hazardous level.

   ·Operation over the maximum rating or other forms of improper use may cause failure, arcing, flame and/or other damage to

the PPTC devices.

   ·Conductive material contamination, such as metal particle, may induce shortage, flame or arcing.

   ·Due to the inductance, the operation circuits may generate a circuit voltage (Ldi/dt) above the rated voltage of PPTC devices,

which shall not be used under such circumstances.

 General

·Customers shall evaluate and test the properties of PPTC devices independently to verify and ensure that their individual

applications will be met.

   ·The peSRormance of PPTC devices will be adversely affected if they are improperly used under electronic, thermal and/or

mechanical procedures and/or conditions non-conformant to those recommended by manufacturer.

   ·Customers shall be responsible for determining whether it is necessary to have back-up, failsafe and/or fool-proof protection

To avoid or minimize damage that may result from extra-ordinary, irregular function or failure of PPTC devices.

   ·Any and all responsibilities and liabilities are disclaimed if any item under this notice of warning is not complied with.

 

Thermal Derating Curve

Thermal Derating Chart

 

Recommended Hold Current (A) at Ambient Temperature ()

Model

Ambient Operation Temperature

-40°C

-20°C

0°C

23°C

40°C

50°C

60°C

70°C

85°C

SMD1210SR005

0.08

0.07

0.06

0.05

0.04

0.04

0.03

0.03

0.02

SMD1210SR010

0.16

0.14

0.12

0.10

0.08

0.07

0.06

0.05

0.03

SMD1210SR020

0.29

0.26

0.22

0.20

0.16

0.14

0.13

0.11

0.08

SMD1210SR035

0.47

0.45

0.40

0.35

0.33

0.28

0.24

0.21

0.18

SMD1210SR050

0.76

0.67

0.58

0.50

0.43

0.40

0.36

0.32

0.28

SMD1210SR075

1.00

0.97

0.86

0.75

0.64

0.59

0.54

0.48

0.40

SMD1210SR110

1.69

1.48

1.29

1.10

0.88

0.76

0.65

0.57

0.43

SMD1210SR150

2.13

1.92

1.71

1.50

1.26

1.14

1.01

0.89

0.71

SMD1210SR175

2.54

2.30

2.02

1.75

1.47

1.33

1.18

1.05

0.86

SMD1210SR200

2.90

2.63

2.31

2.00

1.68

1.52

1.35

1.20

0.98

SMD1210SR260

3.43

3.22

2.93

2.60

2.23

2.03

1.87

1.57

1.35

 

Average Time-Current Curve

Physical Dimensions (mm)

Part

Number

A

B

C

D

E

Min.

Max.

Min.

Max.

Min.

Max.

Min.

Max.

Min.

Max.

SMD1210SR005

3.00

3.43

2.35

2.80

0.75

1.25

0.25

0.75

0.10

0.50

SMD1210SR010

3.00

3.43

2.35

2.80

0.60

1.00

0.25

0.75

0.10

0.50

SMD1210SR020

3.00

3.43

2.35

2.80

0.50

0.85

0.25

0.75

0.10

0.50

SMD1210SR035

3.00

3.43

2.35

2.80

0.50

0.85

0.25

0.75

0.10

0.50

SMD1210SR050

3.00

3.43

2.35

2.80

0.50

0.85

0.25

0.75

0.10

0.50

SMD1210SR075

3.00

3.43

2.35

2.80

1.20

1.80

0.25

0.75

0.10

0.50

SMD1210SR110

3.00

3.43

2.35

2.80

0.75

1.07

0.25

0.75

0.10

0.50

SMD1210SR150

3.00

3.43

2.35

2.80

0.80

1.60

0.25

0.75

0.10

0.50

SMD1210SR175

3.00

3.43

2.35

2.80

1.20

1.80

0.25

0.75

0.10

0.50

SMD1210SR200

3.00

3.43

2.35

2.80

0.75

1.07

0.25

0.75

0.10

0.50

SMD1210SR260

3.00

3.43

2.35

2.80

0.80

1.60

0.25

0.75

0.10

0.50

 

Environmental Specifications

 

Operating / Storage temperature

-40℃ to +85℃

Maximum Device SuSRace Temperature in Tripped State

125℃

Passive Aging

+85℃, 1000 hours

±50% typical resistance change

Humidity Aging

+85℃, 85%R.H. 1000 hours

±50% typical resistance change

Thermal Shock

MIL-STD-202, Method 107G

+85℃/-40℃ 20 times

-50% typical resistance change

Solvent Resistance

MIL-STD-202, Method 215

No change

Vibration

MIL-STD-883C, Method 2007.1, Condition A

No change

Moisture Level Sensitivity

Level 1, J-STD-020C

 

Packaging Quantity and Marking

Recommended Pad Layout (mm)

 

Part Number

Marking

Quantity

SMD1210SR005

0

4000

SMD1210SR010

1

4000

SMD1210SR020

2

4000

SMD1210SR035

3

4000

SMD1210SR050

5

4000

SMD1210SR075

7

4000

SMD1210SR110

11

4000

SMD1210SR150

11

4000

SMD1210SR175

11

4000

SMD1210SR200

20

4000

SMD1210SR260

26

4000

◎ 8mm tape on 7 inch reel per EIA-481(equivalent to IEC286, part 3)

 

 

Physical Specifications

 

Terminal Material

Solder-Plated Copper (Solder Material: Matte Tin (Sn))

Lead Solderability

Meets EIA Specification RS186-9E, ANSI/J-STD-002 Category 3.

 

Packaging

 

Tape

 

 

 

 

 

 

 

Symbol

Dimensions (mm)

 

 

 

 

W

8.00±0.30

8.00±0.30

8.00±0.30

8.00+0.30/-0.10

F

3.50±0.05

3.50±0.05

3.50±0.05

3.50±0.05

E1

1.75±0.10

1.75±0.10

1.75±0.10

1.75±0.10

D0

1.55±0.05

1.55±0.05

1.55±0.05

1.55±0.05

D1

1.00(MIN)

1.00(MIN)

1.00(MIN)

1.00+0.25/-0

P0

4.00±0.10

4.00±0.10

4.00±0.10

4.00±0.10

P1

4.00±0.10

4.00±0.10

4.00±0.10

4.00±0.10

P2

2.00±0.05

2.00±0.05

2.00±0.05

2.00±0.05

A0

2.82±0.10

2.82±0.10

2.80±0.10

2.80±0.10

B0

3.46±0.10

3.50±0.10

3.50±0.10

3.55±0.10

T

0.25±0.10

0.20±0.10

0.25±0.10

0.25±0.10

K0

1.00±0.10

1.30±0.10

1.60±0.10

1.80±0.10

Leader min.

390

390

390

390

Trailer min.

160

160

160

160

Reel

C

Φ178.0±1.0

D

Φ60.2±0.5

H

11.0±0.5

W

9.0±1.5

 

Part Number System

 

 

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