High Precision 2A 2.7*3.3mm 2F Series Quick Acting Thermal Cutoff Fuse Resistor
Quick Detail:
| Model | Material | Operating Temeprature | Soldering Conditions |
| 2F | Fuse body:glass tube Terminal:nickel plated brass Pigtail:tin plated copper on nickel plated brass cap | -40℃~+125℃ | Wave soldering:260℃,≤5s
Hand soldering:360℃,≤1s |
Description:
2F Thermal Cutoff Fuse Resistors (Resistance fuses) are similar in material and structure to fuses.Fuse resistors have two functions.They are usually used as resistors.If the current is abnormal, they can act as fuses to protect machinery and equipment.Cost reduction due to dual function.Fuse resistance can be divided into: metal film fuse resistance, fuse winding resistance and fuse cement resistance.Power: 1/4 w, 1/2 w, 1W, 2W.With the increase of power, the appearance size of the product will continue to increase.Working principle of resistance fuse: there are fast acting fuse and slow bow fuse.The resistance of the fuse resistor is usually small, mostly less than 1 ohm.It often ACTS as a sampling resistor in the circuit.It also protects the circuit when surges or other large currents occur.A fuse protects the circuit breaker.
Specifications:
1. Marking, Dimension and Structure
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①Brass Cap ②Glass Tube ③Lead Wire ④ Fuse Element ⑤Soldering Tin |
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2. Time-current characteristics
| Rated Current | Rated Voltage | Norminal Melting I2T(A2Sec) | Approvals |
| UL |
| 200mA | 125V/250V | 0.06 | ● |
| 250mA | 125V/250V | 0.10 | ● |
| 300mA | 125V/250V | 0.12 | ● |
| 315mA | 125V/250V | 0.14 | ● |
| 350mA | 125V/250V | 0.18 | ● |
| 400mA | 125V/250V | 0.23 | ● |
| 500mA | 125V/250V | 0.38 | ● |
| 600mA | 125V/250V | 0.41 | ● |
| 630mA | 125V/250V | 0.42 | ● |
| 750mA | 125V/250V | 0.47 | ● |
| 800mA | 125V/250V | 0.53 | ● |
| 1A | 125V/250V | 0.65 | ● |
| 1.25A | 125V/250V | 1.25 | ● |
| 1.5A | 125V/250V | 2.20 | ● |
| 2A | 125V/250V | 4.10 | ● |
| 2.5A | 125V/250V | 7.20 | ● |
| 3A | 125V/250V | 14.00 | ● |
| 3.15A | 125V/250V | 17.00 | ● |
| 3.5A | 125V/250V | 18.00 | ● |
| 4A | 125V/250V | 19.00 | ● |
| 5A | 125V/250V | 22.00 | ● |
| 6A | 125V/250V | 25.00 | ● |
| 6.3A | 125V/250V | 28.8 | ● |
3. 2F I-T Average Time-Current Characteristics CCurves
4. 2F Temeprature-Current Curve
5. The installation method is recommended as follows:
6. Packaging
Applications
● Flat–panel Display TV
● LCD monitor
● Lighting system
● Medical equipment
● Industrial equipment
Competive Advantages:
● Small size
● Easy to install
● Enhanced inrush withstand
● Wide range of current ratings (250mA - 10A)
● UL and RoHS complaint
● Wide operating temperature range
● Low temperature rerating
Tag:
Resistance Fuse, Resistor,Tube Fuse, Micro Fuse, Slow Brow Fuse, Fast Acting Fuse
