1245FA-1A-S
Features
- High reliability;
- New end design enhances the heat dissipation function of the end;
- One body fuse-element design, good product consistency;
- Structural characteristics I²T is stable, with strong surge resistance;
- Sealing structure strong resistance to harsh environment;
Electrical Characteristics
| Amp Rating | % of Amp Rating | Opening Time |
|---|---|---|
| 0.5~5.0A | 100% | 4 Hours Min. |
| 200% | 120 Sec. Max. | |
| 1000% | 10 mSec. Max. |
Specifications
| 1245FA-R500-S | 0.50 | 600Vdc @ 100A 350Vac @ 100A 300Vac @ 1500A | 0.530 | 0.08 |
| 1245FA-R630-S | 0.63 | 0.390 | 0.14 | |
| 1245FA-R800-S | 0.80 | 0.230 | 0.41 | |
| 1245FA-1A-S | 1.0 | 0.168 | 0.72 | |
| 1245FA-1.25A-S | 1.25 | 0.135 | 1.17 | |
| 1245FA-1.6A-S | 1.6 | 0.115 | 1.58 | |
| 1245FA-2A-S | 2.0 | 0.087 | 2.64 | |
| 1245FA-2.5A-S | 2.5 | 0.040 | 2.93 | |
| 1245FA-3.15A-S | 3.15 | 0.033 | 4.58 | |
| 1245FA-4A-S | 4.0 | 0.023 | 9.12 | |
| 1245FA-5A-S | 5.0 | 0.018 | 14.25 |
- DC Cold Resistance are measured at <10% of rated current in ambient temperature of 25℃ ;
- Typical Pre-arcing I2t are measured at 10In Current;
Dimension Unit: mm
Packaging
- Quantity: 1,5 000pcs
- 12mm wide tape on 7 inch diameter
- reel -specification EIA Standard 481.
| Type | L | M | T | D |
|---|---|---|---|---|
| 1245FA-S | 12.3±0.5 | 2.7±0.3 | 4.5±0.2 | 4.5±0.2 |
Recommended Land Patterns Unit: mm
| Type | A | B | C | D |
|---|---|---|---|---|
| 1245FA-S | 5.8±0.3 | 16.0±0.3 | 6.4±0.3 | 5.1±0.3 |
Soldering Parameters
1.Infrared Reflow：
- Temperature：260℃
- Time:20sec Max.
- Recommend Reflow profile
IR Reflow Profile
| Preheat Heat | |
| Temperature min (Tsmin) | 150°C |
| Temperature max(Tsmax) | 200°C |
| Time (Tsmin to Tsmax) (ts) | 60 -120 seconds |
| Average ramp-up rate (Tsmax to Tp) | 3°C/second max . |
| Liquidous temperature (TL) Time at liquidous (tL) | 217°C 60 - 150 seconds |
| Peak temperature(Tp) | 260°C |
| Time within 5°C of actual peak Temperature (tp) | 20 seconds |
| Average ramp-down rate (Tp to Tsmax) | 6°C/second max . |
| Time 25 °C to peak temperature | 8 minutes max . |
Temperature Derating Curve
Average Time Current Curves
