Active Member
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[China]
Address: NO.27,Jinlanling Street,Taigongling Village Dongguan 523829,Guangdong,China
Contact name:Eric
Aolittel Technology Co.,Ltd |
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12.3x4.45x4.45mm SEH Series Gold Plated Brass Caps SMD Fuse 60V 40A Square Ceramic For Storage System Power
Physical Specification
Material
Body: Ceramic
Terminations: Gold Plated Brass Caps
Packaging
1. Tape & Reel: 24mm
2. Packing Specification: EIA RS-481-2
3. Quantity: 1,500 pcs per reel.
Application
Storage System Power
Cooling Fan System
Battery Management System (BMS)
Server Power
Approval:Recognized Component for Canada and U.S. 40A
Interrupting Rating:40A: 600 amperes at 60V DC
Electrical Characteristic
| Rated Current | 1 In | 2 In |
| Min. | Max. | |
| 40A | 4 hour | 60 sec |
Environmental Specification
| Operating Temperature | -55°C to +125°C |
| Vibration | MIL-STD-202G, Method 201(10-55 Hz, 0.06 inch, total excursion) |
| Salt Spray | MIL-STD-202G, Method 101, Test Condition B (48Hrs) |
| Insulation Resistance | MIL-STD-202G, Method 302, Test Condition A |
| Resistance to Solder Heat | MIL-STD-202G, Method 210, Test Condition B (10sec, at 260°C) |
| Thermal Shock | MIL-STD-202G, Method 107, Test Condition B (-65°C to +125°C) |
Mechanical Dimension(mm)
Part numbering
| PN | Ampere Rating [ In ] | Voltage Rating ( V ) | Nominal Resistance Cold Ohms | Nominal Melting I²t A² Sec |
| SEH 040 | 40A | 60V | 0.0014 | 570.00 |
Cross
| Aolittel | BUSSMANN | LITTELFUSE | BELFUSE | AEM |
| SEF | 6125FA | 451/453 | SSQ | AF2 2410 |
| SET | 6125TD | 452/454 | SST | ----- |
Electrical Characteristic Explanation
The capacity of fuses for carrying current are tested at 25℃ and will be affected by ambient temperature changed.The fuse operated in higher the ambient temperature;the life of the fuse will be reduced.Conversely,operating at a lower temperature wil extend the life of fuse.
1)NORMAL CURRENT CONDITION
UL type fuse:
Max.current de-rating of fuse(In)=
R.M.S current/(temp.factor) x UL margin(0.75 fixed)
IEC type fuses:
Max.current de-rating of fuse(In)
= measured rms current/(temp.factorx IEC margin(0.9 fixed))
2)BREAKING CAPACITY
A fuse will be safely interrupt in the maximum current and the maximum rated voltage(include less than maximum rated) then the appearance of fuse will not be changed.
3)VOLTAGE RATING
Using exceed the voltage rating of the fuse in circuit will
reduce ability of the fuse for clearing overload current
safely.For example, fuse 250V voltage rating can be used in
less than 250V circuits.
4)AMPERE SQUARE SECONDS, I2t
Ii is the measure of heat energy developed within a circuit during the fuse's clearing.It can be expressed as "melting I2t ""arcing " or the sum of them as " Clearing "."I" stands for effective let-through current(RMS),which is squared, and "t" means melting time(seconds).
