0603TD-R250
Time Delay | 0.063x0.032 inch
Thick Film Chip Fuses
0603TD Series are the fuses set the industry standard for performance, reliability and quality. The solder-free design provides excellent on-off and temperature cycling characteristics during use and also makes our SMD fuses more heat and shock tolerant than typical subminiature fuses.
Features
- Compatible with reflow and wave solder
- Excellent environmental integrity
- One time positive disconnect
- Lead Free and Halogen free material

Electrical Characteristics
| Part No. | Rated Voltage (V) | Rated Current (A) | Breaking Capacity (A) | Typical Cold Resistance (mΩ) | Typical Voltage Drop (mV) | Typical Pre-Arcing I²t (A²s) | Alpha Mark |
|---|---|---|---|---|---|---|---|
| 0603TD-R250 | 32V | 0.25 | 50A | 2300 | 850 | 0.0006 | D |
| 0603TD-R500 | 32V | 0.5 | 50A | 580 | 460 | 0.003 | F |
| 0603TD-R750 | 32V | 0.75 | 50A | 400 | 450 | 0.02 | G |
- DC Interrupting Rating (Measured at rated voltage, time constant of less than 50 microseconds, battery source)
- DC Cold Resistance are measured at <10% of rated current in ambient temperature of 25 degrees
- Typical Pre-arcing I2 t are measured at 10In Current.
Dimension
Unit: mm/inch

Soldering Parameters

Wave Soldering: 260°C, 10 seconds max.
Infrared Reflow: 260°C, 30 seconds max.
IR Reflow Profile
| Parameter | |
|---|---|
| Preheat Heat Temperature min (Tsmin) | 150 °C |
| Preheat Heat 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) | 217 °C |
| Time at liquidous (tL) | 60–150 seconds |
| Peak temperature (Tp) | 260 °C |
| Time within 5 °C of actual peak temperature (tp) | 30 seconds |
| Average ramp-down rate (Tp to Tsmax) | 6 °C/second max |
| Time 25 °C to peak temperature | 8 minutes max |
Temperature Derating Curve
- Normal ambient temperature: 23+/-3℃
- Operating temperature: -55 ~ 150℃, with proper correction factor applied

Packaging
- Quantity: 5, 000pcs
- 8mm wide tape on 178mm(7 inch) diameter reel -specification EIA Standard 481.
Average Time Current Curves

