Guangdong Uchi Electronics Co.,Ltd
Guangdong Uchi Electronics Co.,Ltd Manufactuer of Varistor, Thermistor, Capacitor,Fuse & Resistor since 2006 !
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1032 1245 4512 Series Surface Mount Package Fast Acting High Current Brick Fuse 50A 12x4.5mm Ceramic Square Body
Description
The 4512 series NANO² fuse is a fast-acting, very high current fuse designed for high operating current applications. It offers superior thermal cycling endurance of 500 cycles with its low temperature rise and excellent temperature stability characteristics, it is ideal to be used in datacom and telecom equipment such as high end server, base station, power supplies, and blade computing applications. The 463 series offers high-amp circuit protection, ultra-high interrupting ratings (up to 500A@ 72VDC) and small size (10.1 mm x 3.12 mm x 3.12 mm) and surface-mount formfactor to help space saving.
Features
* Fast Acting High current brick fuse
* Surface mount deign to save space
* Ceramic Suqare body with end cap design
* Designed to UL248-1/14
* New Arrial
Applications
High end servers
Base station power supply
Voltage regulator module for PC server
Cooling fan system for PC server
Advance Telecommunication Computing Architecture (ATCA) applications for cloud computing
Battery Management System (Industrial Tools)
Electrical Characteristics
| Ampere | 1.0 In | 2.5 In | 3.5 In |
| 20-50A | 4hour min. | <10s | - |
| 60-100A | 4hour min. | - | <10s |
Specifications
1. AC Interrupting Rating (Measured at designated voltage, 100% power factor random closing)
2. DC Interrupting Rating (Measured at designated voltage, time constant of less than 50 microseconds,
battery source)
3. Typical Pre-arcing I2t are measured at 10In Current, DC battery bank, but not exceeding the interrupting
rating, time constant of calibrated circuit less than 50 microseconds)
4. Internal qualification for 40A-60A @ 80Vdc, UL Approval is pending
Dimension (mm)
Recommended Pad Layout
20A-30A: Recommend trace thickness is 3oz; the minimum trace width is 10mm
40A-50A: Recommend trace thickness is 3oz; the minimum trace width is 15mm
60A-70A: Recommend trace thickness is 3oz; the minimum trace width is 22mm
80A-100A: Recommend trace thickness is 6oz; the minimum trace width is 33mm
Soldering Characteristics
Reflow Soldering
• Temperature: 260° C
• Time: 30 Seconds Maximum
Time-Current Curves
Temperature derating curve
Normal Operating Temperature: 25℃± 2℃
Operating Temperature: -55℃ to 125℃ with proper correction factor applied.
Chart of correction factor
Package and Minimum order QTY
20A-30A: 2000pcs fuses in tape (width 24mm) and reel (dia. 13inch);
40A-100A: 1000pcs fuses in tape (width 24mm) and reel (dia. 13inch)