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|Type Name:||Subminiature Fuse||Size:||8x4x8mm|
|Rated Current:||8A||Voltage Rating:||250V|
silicon carbide varistor,
metallic oxide varistor
8x4x8mm DIP Mounted Miniature Square Radial Lead Micro Slow Blow Subminiature Fuse T8A 250V
What are fuses??
They are protectors that prevent damage to electronic and electrical equipment. Fuses allow electric current to pass through them until the amount of current goes over the fuses rating. At the time, the fuse Blows and stop the flow of electric current. Fuses are rated in in amperes, the unit of measure for electric current.
% of Ampere Rating(In)
|150%* In||60 min Minimum|
|210%* In||2 min Max|
|275%* In||400 ms~10 s|
|400%* In||150 ms~3 s|
|1000%* In||20 ms~150 ms|
Suitable Fuse Holder
Fast-ACTING / SLOW BLOW,what's meaning ?
Fast Acting fuses react quickly to current overloads. Slow Blow fuses are less sensitive to start-up surge and protect against long-term overlaods
Fuse is a Saftey devices components. Always replace a blown fuse with the same type replace fast acting with fast acting, slow blow with slow blow. Slow Blow fuse are less sensitve to start-up the protection against longterm overloads.Thera are four basic types of fuse: Slow-Blow/ Time LAG - Dual Element slow blow fuses / Fast-acting / Very fast Acting fuses.
A major type of slow blow fuse is the dual element fuse. This fuse consists of a short circuit strip and a soldered joint, spring connection. During overloads conditions, the soldered joints gets hot enough to melt and the spring shears the junction loose. Under short circuits conduitions the short circuit elements opersates to open the circuit. All dual-Elements fuses are considered to be slow blow, but not all slow blow fuses are dual elements.
Slow-blow fuses are ideal for circuits with a transient surge or power inrush. There circuits include: motors, transformers, incandescant lamps and capacitive loads. This inrush can be 20 times the normal current level. When using fast-acting, single elements type fuses, it is neccessary to rate fuse at 150% to 300% of thre circuits full load curent. With this rating rule inrush may cause nuisance openings.
Slow Blow fuses allow close rating of the fuse without nuisance opening. Typically rate the slow-blow fuses from 125% to 150° of the circuits full load process .
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