6CT7-20A
Fast Acting | 6x32mm
Ceramic Tube Fuses
Features
- Fast Acting, high breaking capacity under 500VAC/DC
- Special Engineering Material tube, Silver platedcap construction
- High breaking capacity for high energy application
- RoHS and Lead Free material
Electrical Characteristics
| Current Rating | % of Ampere Rating | Opening Time |
|---|---|---|
| 10A-30A | 100% | 4 hours Min. |
| 250% | 120 sec Max. |
Specifications
| Part Number | Current Rating | Voltage Rating | Interrupting Rating | Typical Cold Resistance (mOhms) |
Typical Pre-Arcing I²t (A²sec) |
|---|---|---|---|---|---|
| 6CT7-10A xxx | 10A | 500VAC@1000A 500VDC@1000A |
17.1 | 100 | |
| 6CT7-12A xxx | 12A | 12.3 | 140 | ||
| 6CT7-15A xxx | 15A | 8.0 | 66 | ||
| 6CT7-16A xxx | 16A | 8.0 | 62 | ||
| 6CT7-20A xxx | 20A | 5.65 | 125 | ||
| 6CT7-25A xxx | 25A | 3.8 | 390 | ||
| 6CT7-30A xxx | 30A | 3.1 | 600 | ||
1 DC Cold Resistance are measured at <10% of rated current in ambient temperature of 25℃.
2 Typical Pre-arcing I²t are measured at 10In Current.
3 xxx = Axial lead length.
Dimension(Unit/mm)
Cylindrical

Packaging
Cylindrical fuses: 250pcs per box
38 mm Axial Lead Fuses: 75pcs per box
50mm Axial Lead Fuses: 200pcs per bag
Axial leaded

The length of the lead
38.00 ±1.0 Ordering P/N: 6CT7-xxx E
50.00 ±2.0 Ordering P/N: 6CT7-xxx ME
Temperature Rerating Curve

Wave Soldering Parameters
Solder Pot Temperature: 270°c Max.
Solder Dwell Time: 10s Max.
Recommended Hand Solder Parameters
Solder Iron Temperature: 350°C+/- 5°C
Heating Time: 5s Max.
Operating Temperature Range
- 55°C to + 125°
Time-Current Curves
