贴片自恢复保险丝SMD2018

产品信息
产品类别:贴片自恢复保险丝
关键词:SMD2018,保险丝,恢复,贴片
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发布时间:2022-10-24 15:32:58
全国服务热线:13549460265
产品详情

Performance Specification                                                  

Model

Maximum

Resistance

V max

Imax

I hold

I trip

Pd

Time To Trip

Marking

@25°C

@25°C

Typ.

Current

Time

R i min

R1max

(V dc)

(A)

(A)

(A)

(W)

(A)

(Sec)

(W)

(W)

 SMD2018-030SF

030

60

10

0.30

0.60

0.9

1.5

3.00

0.500

2.300

 SMD2018-050SF

050

60

10

0.55

1.20

1.0

2.5

3.00

0.200

1.000

 SMD2018-075SF

075

60

10

0.75

1.50

1.1

8.0

0.30

0.110

0.630

 SMD2018-100SF

100

15

35

1.10

2.20

1.1

8.0

0.40

0.060

0.360

 SMD2018-100SF33V

100

33

35

1.10

2.20

1.1

8.0

0.40

0.060

0.360

 SMD2018-150SF

150

15

35

1.50

3.00

1.1

8.0

0.80

0.050

0.170

 SMD2018-200SF

200

10

35

2.00

4.00

1.1

8.0

2.40

0.030

0.100

       V max  = Maximum operating voltage device can withstand without damage at rated current (Imax).

       I max   = Maximum fault current device can withstand without damage at rated voltage (V max).

       I hold   = Hold Current. Maximum current device will not trip in 25°C still air.

       I trip    = Trip Current. Minimum current at which the device will always trip in 25°C still air.

       Pd      = Power dissipation when device is in the tripped state in 25°C still air environment at rated voltage.

       Ri min/max  = Minimum/Maximum device resistance prior to tripping at 25°C.

       R1max  = Maximum device resistance is measured one hour post reflow.

       CAUTION : Operation beyond the specified ratings may result in damage and possible arcing and flame.


Environmental Specifications                                                

Test

Conditions

Resistance change

Passive aging

+85°C, 1000 hrs.

I HOLD/I TRIP PASS

Humidity aging

+85°C, 85% R.H. , 168 hours

I HOLD/I TRIP PASS

Thermal shock

+85°C to -40°C, 20 times

I HOLD/I TRIP PASS

Resistance to solvent

MIL-STD-202,Method 215

电阻不變化

Vibration

MIL-STD-202,Method 201

电阻不變化

Ambient operating conditions : - 40 °C to +85 °C

Maximum surface temperature of the device in the tripped state is 125 °C



Thermal Derading Chart                                                  

       Recommended Hold Current(A) at Ambient Temperature(°C)

Model

Ambient Operation Temperature

-40°C

-20°C

0°C

25°C

40°C

50°C

60°C

70°C

85°C

 SMD2018-030SF

0.48

0.42

0.35

0.30

0.24

0.21

0.17

0.15

0.10

 SMD2018-050SF

0.87

0.77

0.67

0.55

0.46

0.41

0.36

0.31

0.23

 SMD2018-075SF

1.19

1.05

0.91

0.75

0.61

0.54

0.47

0.41

0.32

 SMD2018-100SF

1.71

1.52

1.32

1.10

0.94

0.84

0.74

0.64

0.50

 SMD2018-150SF

2.38

2.10

1.82

1.50

1.27

1.13

0.99

0.85

0.64

 SMD2018-200SF

2.95

2.65

2.35

2.00

1.74

1.59

1.44

1.29

1.06







Thermal Derating Curve                                                  

     2024新澳门原料大全


Average Time-Current Curve                                                

     2024新澳门原料大全


Soldering Parameters  


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Profile Feature

Pb-Free Assembly

Average Ramp-Up Rate(Ts max to T p)

3/second mac.

Preheat

  -Temperature Min(Ts min)

  -Temperature Max(Ts max)

  -Time(Ts min to Ts max)

150

200

60~180 seconds

Time maintained above:

  -Temperature(TL)

  -Time(tL)

217

60~150 seconds

Peak Temperature(Tp)

260

Ramp-Down Rate

6/second max.

Time 25 to Peak Temperature

8 minutes max

Storage Condition

0~30,30%~60%RH

        Recommended reflow methods: IR, vapor phase oven, hot air oven, N2 environment for lead-free

      Recommended maximum paste thickness is 0.25mm

      Devices can be cleaned using standard industry methods and solvents.

      Note 1:All temperature refer to topside of the package, measured on the package body surface.

      Note 2: If reflow temperatures exceed the recommended profile, devices may not meet the performance requirements.



Physical Dimensions(mm.)  


2024新澳门原料大全                                                

 

        

Model

A

B

C

D

E

Min.

Max.

Min.

Max.

Min.

Max.

Min.

Min.

 SMD2018-

4.72

5.44

4.22

4.93

0.50

1.20

0.30

0.25

       Termination Pad Characteristics

       Terminal pad materials:Tin-plated Nickel-Copper

       Terminal pad solder ability:Meets EIA specification RS186-9E and ANSI/J-STD-002 Category 3.


Recommended Pad Layout (mm.)                                         

    2024新澳门原料大全





注:在此印锡面积条件下,推荐钢网厚度为≧0.12MM(钢网厚度不够要增大刷锡面积)


Packaging Quantity                                                       

Part Number

Quantity

 SMD2018-0100SF33V

2500 pcs/reel

Tape & reel packaging per EIA481-1



Tape And Reel Specifications (mm)       

Governing Specifications

EIA 481-1

W

12.0 ± 0.2

P0

4.0 ± 0.10

P1

8.0 ± 0.10

P2

2.0 ± 0.05

A0

4.40 ± 0.10

B0

5.50 ± 0.10

B1max.

8.20

D0

1.50 + 0.1, -0

F

5.5 ± 0.05

E1

1.75 ± 0.10

E2min.

10.25

T

0.6

T1max.

0.1

K0

1.36 ± 0.1

Leader min.

390

Trailer min.

160

Reel Dimensions

A max.

178

N min.

50

W1

12.4 ± 0.5

W2

18.4 ± 0.5

Storage And Handling

Storage conditions0~30, 30%~60% R.H.

Devices may not meet specified performance

  if storage conditions are exceeded.


2024新澳门原料大全

2024新澳门原料大全



注意事项                                                                

PPTC使用注意事项:

·PPTC为热敏元件,对环境温度比较敏感,建议在PPTC周围不要设计热源元件,尽量减少外部热源的影响。

·请在规格书规定的参数下(<10%)使用,超出电压电流规格值,会导致PPTC出现电弧,阻值升高,甚至烧片。

·规格书的电气特性,均是基于在大容指定测试板经过一次回流焊之后的测试;如果客户有二次回流焊或者注塑点胶等其他热工序,会对上述参数有一定程度的衰减,需要验证其适用性。

·PPTC贴片产品是为SMT工艺设计的封装形式,焊接工艺为回流焊;要求客户遵守我们推荐的焊盘布局和回流焊配置文件。不正确的电路板布局或回流配置可能会对PPTC的可焊性性能产生负面影响。焊接工艺可参考大容推荐的回流焊曲线。如果回流焊温度超过推荐的值,PPTC将有可能受到损伤。使用手工焊及波峰焊接PPTC可能会导致产品焊后电阻超出规格。

·某些注塑料、单组份、双组份固化胶粘剂、硅胶、侵蚀性溶剂污染PPTC材料破坏芯片,需要对注塑料胶料等材料牌号以及应用参数(如温度、时间等)进行验证,以确保产品及工艺的匹配性,确认不会影响PPTC性能之后方可使用。PPTC在充电线端应用中,建议使用PP类材料做内膜,禁止使用TPE类与PVC类等材料做内膜。

·PPTC贴装或使用过程中,不建议使用洗板水或其他清洗剂进行清洗。如必须使用,需要验证各类清洗剂、洗板水以及溶剂的适用性,确认不会影响PPTC性能之后方可使用。已知对PPTC有影响的化学药品包括但不于醚类、苯类、酮类以及脂类等较强溶解性、破坏性的有机化合物,清洗后将产品放置于敞开的环境中至少24小时,将残留的溶剂进行充分的挥发。

·装配过程中,避免用暴力砸、挤、压、拉、扭、刺等方式作用PPTC本体,以免引起PPTC 性能衰减。

·PPTC元件是为电路中偶尔出现的过流而设计的,不建议用在连续且持续过流的电路中。

·大容SMD PPTC湿敏等级为2级,为密封包装。客户如在库存中发现有包装破损的,立即将产品隔离处理;使用时如有余料,需恢复之前包装状态,做密封保存,否则会影响产品性能导致焊后电阻越规格。

·产品废弃时,可按照一般电子废弃物处理,具体材料组成可参见MSDS



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