Radial Lead Cylindrical Slow Blow Micro Fuse
  • Air ProRadial Lead Cylindrical Slow Blow Micro Fuse
  • Air ProRadial Lead Cylindrical Slow Blow Micro Fuse
  • Air ProRadial Lead Cylindrical Slow Blow Micro Fuse

Radial Lead Cylindrical Slow Blow Micro Fuse

Radial Lead Cylindrical Slow Blow Micro Fuse is the thinnest micro fuse with height 5mm and pitch 5mm in the world , ideal for space-limited printed circuit boards.

Model:SRT

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Product Description

Radial Lead Cylindrical Slow Blow Micro Fuse SRT 250V 3.15A 


Description of Radial Lead Cylindrical Slow Blow Micro Fuse


Radial Lead Cylindrical Slow Blow Micro Fuse is newest model in cylindrical shape but same performances with MTS , differences is on shape only. Excellent performances on voltage withstand , expansion-proof , full certificates, huge production


Benefits of Radial Lead Cylindrical Slow Blow Micro Fuse


2020 New Arrival Product

Rolling structure had better quality

High-frequency soldering increases production speed and saves energy

Fully automated production

Equivalent to MTS


Applications of Radial Lead Cylindrical Slow Blow Micro Fuse


Power Supplies

Consumer Electronics

Industrial Equipment

LED Lighting Systems

Battery Chargers


Standards and Agency Approvals of Radial Lead Cylindrical Slow Blow Micro Fuse


Agency

Ampere Range 

UR 

50mA ~ 10A

C-UR

50mA ~ 10A

VDE

50mA ~ 6.3A

CQC

50mA ~ 6.3A

PSE

50mA ~ 6.3A

KC

50mA ~ 6.3A


Dimension of Radial Lead Cylindrical Slow Blow Micro Fuse (mm)



Electronic Performances of Radial Lead Cylindrical Slow Blow Micro Fuse


1. Interrupting Rating


Breaking Capacity: 35A or 10In whichever is greater at 250V AC.

The insulation resistance valueof fuseis greater than 0.1ΜΩ after breaking capacity testing.


2. Operating Characteristics 

额定电流的%   % of Ampere Rating 熔断时间  Opening Time
210% 2 min Max(小于2分钟)
275% 400 ms~10 s
400% 150 ms~3 s
1000% 20 ms~150 ms


3. Part Numbering 


目录编号 额定电流 额定电压 最大电压降(mv) 熔化热能I2T
Catalog Ampere Voltage Max Voltage Melting Integral
No. Rating Rating Drop (A2.S)
SRT0250A 250mA 250V 240 0.2
SRT0315A 315mA 250V 220 0.3
SRT0400A 400mA 250V 200 0.5
SRT0500A 500mA 250V 190 0.7
SRT0630A 630mA 250V 180 1.2
SRT0800A 800mA 250V 160 1.8
SRT1100A 1A 250V 140 5.4
SRT1125A 1.25A 250V 130 7.9
SRT1160A 1.6A 250V 120 12
SRT1200A 2A 250V 100 20
SRT1250A 2.5A 250V 100 34
SRT1315A 3.15A 250V 100 54
SRT1400A 4A 250V 100 85
SRT1500A 5A 250V 100 130
SRT1630A 6.3A 250V 100 205


Package of Radial Lead Cylindrical Slow Blow Micro Fuse


Packing Quantity

A.  Bulk packing:

Bulk1000 pcsin per poly bag;

5 poly bags in per inner box(24*17*11cm);

4 inner boxes in per outer carton(39*24*25cm)

B. Taped packing

1000 pcs per inner box(33*20*40cm)

10 inner boxes per outer carton(58*36*23cm),7kg per carton


How Does a Fuse Work?


A fuse is a simple and highly effective way to protect a device from dangerous levels of current:


Current flowing through a conductor’s nonzero resistance leads to power dissipation.

Power is dissipated in the form of heat.

Heat raises the temperature of the conductor.

If the combination of current amplitude and duration is sufficient to raise the temperature above the fuse’s melting point, the fuse becomes an open circuit and current flow ceases.

Though the fundamental operation of a fuse is not complicated, there are subtle points to keep in mind. The rest of this article will help you to understand some important details related to the behavior and use of fuses.


Fuse Design Best Practices: Rated Current vs. Operating Current

It would be perfectly reasonable to assume that a fuse rated for 6 amps could be used in a circuit that might need 5 amps of steady-state current. It turns out, though, that this is not good design practice.


The current rating of a fuse is not a high-precision specification, and furthermore (as discussed above) the actual tripping current is influenced by ambient temperature. Consequently, to avoid “nuisance tripping,” you should have a fairly generous gap between your expected steady-state current and your fuse’s rated current.

Time-Current Characteristics of Radial Lead Cylindrical Slow Blow Micro Fuse


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