1206HV-R250
Fast Acting | 0.126x0.064 inch
Thick Film Chip Fuses
1206HV 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
- Lead Free and Halogen free material
- Rapid interruption of excessive current
- Excellent environmental integrity
- One time positive disconnect
- AEC-Q200 Automotive Grade Certified

Appications
- Flat panel displays and televisions
- Automotive infotainment and ECU
- Computer servers
- Portable electronics
- Mobile device chargers
- Power Battery Packs
Electrical Characteristics
| Amp Rating | % of Amp Rating | Opening Time |
|---|---|---|
| 0.25~5A | 100% | 4 Hours Min. |
| 250% | 5 Seconds Max. | |
| 6~20A | 350% | 5 Seconds Max. |
Specification
| Part Number | Ampere Rating (A) | Voltage Rating (V) | Interrupting Rating | Typical Cold Resistance (Ω) | Typical Melting I²t (A²Sec) | Typical Voltage Drop (V) | Marking Code |
|---|---|---|---|---|---|---|---|
| 1206HV-R250 | 0.250 | 125Vac/dc | 50A | 3.608 | 0.00012 | 1.407 | 0.25 |
| 1206HV-R375 | 0.375 | 125Vac/dc | 50A | 1.882 | 0.0003 | 0.718 | E |
| 1206HV-R500 | 0.500 | 125Vac/dc | 50A | 1.028 | 0.0005 | 0.650 | 0.5 |
| 1206HV-R750 | 0.750 | 125Vac/dc | 50A | 0.850 | 0.009 | 1.000 | 0.75 |
| 1206HV-1A | 1.00 | 125Vac/dc | 50A | 0.240 | 0.0075 | 0.300 | H |
| 1206HV-1.25A | 1.25 | 125Vac/dc | 50A | 0.175 | 0.009 | 0.290 | — |
| 1206HV-1.5A | 1.50 | 125Vac/dc | 50A | 0.125 | 0.013 | 0.250 | 1.5 |
| 1206HV-2A | 2.00 | 125Vdc | 50A | 0.080 | 0.04 | 0.200 | N |
| 1206HV-2.5A | 2.50 | 125Vdc | 50A | 0.038 | 0.045 | 0.140 | 2.5 |
| 1206HV-3A | 3.00 | 125Vdc | 50A | 0.032 | 0.065 | 0.130 | P |
| 1206HV-3.5A | 3.50 | 72Vdc | 50A | 0.025 | 0.08 | 0.120 | 3.5 |
| 1206HV-4A | 4.00 | 72Vdc | 50A | 0.020 | 0.11 | 0.110 | S |
| 1206HV-5A | 5.00 | 72Vdc | 50A | 0.013 | 0.185 | 0.100 | T |
| 1206HV-6A | 6.00 | 63Vdc / 72Vdc | 50A | 0.0155 | 8 | 0.140 | F |
| 1206HV-7A | 7.00 | 63Vdc / 72Vdc | 50A | 0.0115 | 10 | 0.130 | 7 |
| 1206HV-8A | 8.00 | 32Vdc / 48Vdc | 150A | 0.0076 | 12 | 0.123 | V |
| 1206HV-10A | 10.0 | 32Vdc / 48Vdc | 150A | 0.0055 | 18 | 0.110 | U |
| 1206HV-12A | 12.0 | 32Vdc / 48Vdc | 150A | 0.0050 | 11.5 | 0.085 | 12 |
| 1206HV-15A | 15.0 | 32Vdc / 48Vdc | 150A | 0.0034 | 16.5 | 0.078 | 15 |
| 1206HV-20A | 20.0 | 32Vdc / 48Vdc | 150A | 0.0022 | 40 | 0.080 | Q |
- AC Interrupting Rating (measured at designated voltage, 100% power factor);
- DC Interrupting Rating (measured at designated 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℃Typical
- Pre-arcing I2 t are measured at 10In Current Specifications are subject to change without notice. Application testing is strongly recommended.
Dimension
Unit: mm/inch

Pad layout

Packaging
- Quantity: 3 000pcs
- 8mm wide tape on 178mm(7 inch) diameter reel -specification EIA Standard 481.
Soldering Parameters

Wave Soldering: 260°C, 10 seconds max.
Infrared Reflow: 260°C, 30 seconds max.
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) | 217°C |
| Time at Liquidous (tL) | 60 – 150 seconds |
| Peak Temperature (Tp) | 260 +0/-5°C |
| Time within 5°C of Peak (tp) | 10 – 30 seconds |
| Average Ramp-down Rate (Tp to Tsmax) | 6°C/second max. |
| Total Time (25°C to Peak) | 8 minutes max. |
Temperature Derating Curve

- Normal ambient temperature: 23+/-3℃
- Operating temperature: -55 ~ 150℃, with proper correction factor applied
Average Time Current Curves
