Slow Blow Surface Mounted Fuse 30A 250V
  • Air ProSlow Blow Surface Mounted Fuse 30A 250V
  • Air ProSlow Blow Surface Mounted Fuse 30A 250V
  • Air ProSlow Blow Surface Mounted Fuse 30A 250V
  • Air ProSlow Blow Surface Mounted Fuse 30A 250V

Slow Blow Surface Mounted Fuse 30A 250V

Slow Blow Surface Mounted Fuse 30A 250V was designed as UL 248-14,anti-surge type with high current rating up to 60A and voltage rating is 125V 250V AC, small size 10.25x3.2mm , it is ideal for electronic board protection solution such as LED driver and Power supply.

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Product Description

1032 NANO High Inrush Gold Plated Ceramic Slow Blow Surface Mount Fuse 30A 250V


Typical Application Explanation of Slow Blow Surface Mounted Fuse 30A 250V


Computers & Peripherals

PC/ Laptop/ Audio-video devices

Slow Blow Surface Mounted Fuse 30A 250V factory

Market for computer and its peripherals products in both home and business has reached a mature and stable status. Being a leading passive components manufacturer, Walter offers numerous solutions applicable for server power, desktop power, and power adaptors in general for all kinds of power range.


Dimension of Slow Blow Surface Mounted Fuse 30A 250V (mm)

Slow Blow Surface Mounted Fuse 30A 250V factory

NO.

Part Name

Material

1

End caps

Au Plated Brass Cap

2

Body

Non-Transparent Square Ceramic Tube

3

Fuse element

Cu-Ag Alloy wire


Electrical Parameters of Slow Blow Surface Mounted Fuse 30A 250V


P/N

Ampere

Rating

Voltage

Rating

Breaking

Capacity

Nominal Cold

Resistance

(Ohms)

I2TMelting

Integral(A2.S)

R1032.0200

200mA

125VAC

250VAC

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0.920

0.125

R1032.0250

250mA

0.860

0.145

R1032.0300

300mA

0.620

0.162

R1032.0315

315mA

0.550

0.189

R1032.0375

375mA

0.470

0.200

R1032.0400

400mA

0.380

0.238

R1032.0500

500mA

0.320

0.275

R1032.0600

600mA

0.285

0.470

R1032.0630

630mA

0.256

0.566

R1032.0700

700mA

0.208

0.805

R1032.0750

750mA

0.175

1.240

R1032.0800

800mA

0.155

1.880

R1032.1100

1A

0.148

3.500

R1032.1125

1.25A

0.102

4.760

R1032.1150

1.5A

0.085

6.305

R1032.1160

1.6A

0.075

6.505

R1032.1200

2A

0.044

8.950

R1032.1250

2.5A

0.043

16.025

R1032.1300

3A

0.033

21.560

R1032.1315

3.15A

0.029

22.750

R1032.1350

3.5A

0.027

27.050

R1032.1400

4A

0.025

31.808

R1032.1500

5A

0.019

40.250

R1032.1600

6A

0.018

67.245

R1032.1630

6.3A

0.017

73.550

R1032.1700

7A

0.015

76.280

R1032.2100

10A

0.013

77.350

R1032.2120

12A

0.012

78.180

R1032.2150

15A

0.011

79.280

R1032.2200

20A

0.011

80.180

R1032.2250

25A

0.010

83.350

R1032.2300

30A

0.010

90.080


Product Features of Slow Blow Surface Mounted Fuse 30A 250V


Materials

Body : ceramic tube  Cap : brass with gold plated  Element : alloy

Operating Temperature

-55℃ to +125℃ (consider de-rating)

Solderability

T =235℃±5℃, t =5+0/-0.5s, Cover≧95%

Resistance to Soldering Heat

T =260℃±5℃, t =10s ±1s

Recommended Soldering Parameters

260℃, 10s Max. (solder-reflow)

Storage Conditions

Can be stored for 2 years under tight seal condition at temperature of +10℃~40℃, relative humidity≤ 75%.

At most can be kept 30 days at temperature +10℃~40℃, relative humidity≤ 95% under covered conditions.

Standards

UL 248-14

Breaking Capacity

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Characteristic

Time-lag

Max. Voltage

250VAC

Rated Voltage

500mA~5A

Size

10.25x3.2mm


Operating Characteristics of Slow Blow Surface Mounted Fuse 30A 250V


% of Ampere Rating(In)

Blowing Time

100% * In

4 hours Min

200% * In

120 sec Max


Our inspection devices list of Slow Blow Surface Mounted Fuse 30A 250V


Circuit-breaker test Salt spray test Digital microscope test Breaking capacity test Isolation test Tensile test Vibration test Thermal shock Soldering heat resistance test Thermal raising test Environmental test Plated-thickness major material analysis

How to Calculate Fuse Size the 1032 Slow Blow Surface Mount Fuse

A fuse is an electrical safety device that works by protecting a circuit against over-current. It contains a metal wire or strip that begins to melt when too much current passes through. Fuses have been used to protect components from damage and electrical fire. Now, there is an array of electronic products that use proper fuse selection to ensure maximum reliability.

Fuse Rating Terms and CharacteristicsThe current need to blow a fuse is also referred to as fuse rating. When a circuit is blown, current ceases to flow and the circuit is rendered safe again. Fuses are classified by the AC or DC circuit voltage they correspond to. In DC circuits, the current flows in a single direction and the voltage doesn't reach zero potential. AC circuit voltage goes past zero potential at 50 or 60 cycles per second. There are two main types of fuse ratings: The continuous rating and the blow rating. In the first case, the continuous current doesn't usually exceed 75 percent of the fuse's rated value, whereas the blow rating fuses are marked with the current rating at which the fuse will blow. They are usually marked at twice the value of the continuous rating.

Calculating Fuse SizeThere are several things you need to take into account when calculating fuse size. This process is essential to all electrical and electronic system designs. As the majority of DC-DC converters use circuit-sensing current limits or thermal overload circuits to protect against short-circuits, a fuse size calculator will need to take into account the right selection of an input fuse. This includes the voltage rating, current rating, interrupting rating, maximum circuit fault current and other mechanical considerations.

Fuse Class for Circuit ProtectionFuses can be selected by characteristics, construction and classes. There are certain standards that manufacturers use to create a fuse, and these refer to the fuse classes in which every product must fit in. Class CC fuses, for example, represent the non-renewable devices used for the protection of short-time overload components and non-inductive loads, as well as motor circuits. They're provided with rejection tips at the bottom and have a voltage rating of 600 VAC. While class G fuses are used for lighting and distribution boards, a class H fuse will be required to protect a branch circuit or even an electric oven from damage.

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