SMD0603 一次性贴片保险丝

产品信息
产品类别:一次性贴片保险丝
关键词:SMD0603,一次性贴片保险丝
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发布时间:2019-01-26 17:42:37
全国服务热线:13549460265
产品详情

Features产品特点:

• Compatible with leadfree solders and higher temperature profiles.

• High performance materials provide improved performance in elevated ambient temperature applications.

• Marked on top surface with code to allow amp rating identification without testing.

• Low profile for height sensitive applications.

• Flat top surface for pickand-place operations.

• Element covering material is resistant to industry standard cleaning operations.

• Mounting pad and electrical performance is identical to Littelfuse 431 and 434 Series products.

• Alloy based element construction provides superior inrush withstand characteristics (I2t) over ceramic or glass based 0603 fuse products.

Applications产品应用:

Secondary protection for space constrained applications:

• Cell phones

• Battery packs

• Digital cameras

• DVD players

• Hard disk drives.


Electrical Characteristics for Series

% of Ampere Rating  

Opening Time at 25OC

100%  

4 hours, Minimum

200%  

5 sec., Maximum

300%  

0.2 sec., Maximum









Electrical Specifications by Item

AmpereRating

(A)

Amp

Code

Max

Voltage

Rating(V)

Interrupting

Rating

Nominal Cold

Resistance

(Ohms)

Nominal

Melting

I2t (A2sec)

Nom

Voltage

Drop(mV)

Nom

Power

Dissipation

(W)

Agency Approvals

UR

CSA

0.250

.250

32

50A @32V AC/DC

0.5450

0.0030

158.56

0.0396

x

x

0.375

.375

32

0.2900

0.0053

128.03

0.0480

x

x

0.500

.500

32

0.1870

0.0087

115.71

0.0579

x

x

0.750

.750

32

0.1170

0.0171

107.33

0.0805

x

x

1.00

001.

32

0.0710

0.0212

89.10

0.0891

x

x

1.25

1.25

32

3 @32V AC/DC

13A @65V DC

0.0530

0.0518

84.32

0.1054

x

x

1.50

01.5

32

0.0410

0.0766

81.14

0.1217

x

x

1.75

1.75

32

3 @32V AC/DC

0.0320

0.0903

78.75

0.1378

x

x

2.00

002.

32

0.0300

0.1103

78.22

0.1564

x

x

2.50

02.5

32

0.0220

0.1440

76.10

0.1903

x

x

3.00

003.

32

0.0180

0.2403

75.04

0.2251

x

x

3.50

03.5

32

0.0150

0.4306

74.25

0.2599

x

x

4.00

004.

32

0.0130

0.5760

73.72

0.2949

x

x

5.00

005.

32

0.0090

0.9000

72.71

0.3635

x

x



1. Measured at 10% of rated current, 25ºC. 2. Measured at rated voltage.



Temperature Rerating Curve

Note:

1. Derating depicted in this curve is in addition to the standard derating of 25% for

continuous operation.

Example:For continuous operation at 70 degrees celsius, the fuse should be deratedas follows:

I = (0.75)(0.80)IRAT = (0.60)IRAT

2. The temperature derating curve represents the nominal conditions. For questions about temperature derating curve, please consult Littelfuse technical support for assistance.

Average Time Current Curves

Soldering Parameters

Reflow Condition 

Pb– Free assembly

Pre Heat

 Temperature Min (Ts(min))

150°C

 Temperature Max (Ts(max))

200°C

 Time (Min to Max) (ts)

60 – 180 secs

Average ramp up rate (Liquidus Temp(TL) to peak

5°C/second max

TS(max) to TL-Ramp-up Rate

5°C/second max

Reflow

 Temperature (TL) (Liquidus)

217°C

 Temperature (tL)

60 – 150 seconds

Peak Temperature (TP)

250+0/-5 °C

Time within 5°C of actual peak Temperature (tp)

20 – 40 seconds

Ramp-down Rate

5°C/second max

Time 25°C to peak Temperature (TP)

8 minutes Max.

Do not exceed

260°C

Wave Soldering

260°C, 10 seconds max.


Product Characteristics

Materials

Body: Advanced High Temperature Substrate

Terminations: 100% Tin over Nickel over Copper

Element Cover Coat: Conformal Coating

Operating Temperature

– 55OC to 90OC. Consult temperature rerating curve chart. For operation above 90°C contact us

Humidity

MIL-STD-202F, Method 103B, Condition D

Thermal Shock  

 Withstands 5 cycles of – 55OC to 125OC

Vibration

Per MIL-STD-202F

Insulation Resistance (After Opening)

Greater than 10,000 ohms.

Resistance to Soldering Heat

MIL-STD-202G, Method 210F,Condition D

Dimensions

 Part Marking System

Amp Code

Marking Code

.250

D

.375

E

.500

F

.750

G

001.

H

1.25

J

01.5

K

1.75

L

002.

N

02.5

O

003.

P

03.5

R

004.

S

005.

T

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