SRF1206P350LR
Surface-Mount Devices | 1206 Size
PTC Resettable Fuses
Features
- Resettable over current and over temperature protection Standard 0402mils footprint
- Fast time-to-trip
- RoHS complaint
- Low resistance
Applications
- USB peripherals including new USB 3.0 / 2.0 ports
- Li-ion / Li-Polymer battery packs
- Smart phones
- E-readers
- LCD / LED HDTV
- Tablet , Notebook PCs and Computer peripherals
- Digital cameras and video cameras
- Hard disk drives
- Game consoles
Electrical Characteristics
| Part Number | IH (A) |
IT (A) |
Vmax (V) |
Imax (A) |
Time to Trip | Pdtyp (W) |
Rmin (Ω) |
R1max (Ω) |
|
|---|---|---|---|---|---|---|---|---|---|
| (A) | (Sec.) | ||||||||
| SRF1206P110LR | 1.10 | 2.20 | 6 | 50 | 8.00 | 0.30 | 1.20 | 0.015 | 0.100 |
| SRF1206P150LR | 1.50 | 3.00 | 6 | 50 | 8.00 | 0.30 | 1.20 | 0.010 | 0.065 |
| SRF1206P175LR | 1.75 | 3.50 | 6 | 50 | 8.00 | 1.00 | 1.20 | 0.005 | 0.055 |
| SRF1206P190LR | 1.90 | 3.80 | 6 | 50 | 8.00 | 5.00 | 1.20 | 0.010 | 0.060 |
| SRF1206P200LR | 2.00 | 4.00 | 6 | 50 | 8.00 | 1.00 | 1.20 | 0.005 | 0.055 |
| SRF1206P200/12LR | 2.00 | 4.00 | 12 | 50 | 8.00 | 5.00 | 1.20 | 0.008 | 0.040 |
| SRF1206P260LR | 2.60 | 5.00 | 6 | 50 | 8.00 | 4.00 | 1.20 | 0.003 | 0.035 |
| SRF1206P300LR | 3.00 | 6.00 | 6 | 50 | 8.00 | 5.00 | 1.20 | 0.003 | 0.020 |
| SRF1206P300/12LR | 3.00 | 6.00 | 12 | 50 | 8.00 | 5.00 | 1.20 | 0.003 | 0.020 |
| SRF1206P350LR | 3.50 | 7.00 | 6 | 50 | 18.5 | 2.00 | 1.20 | 0.003 | 0.030 |
| SRF1206P350/12LR | 3.50 | 7.00 | 12 | 50 | 8.00 | 5.00 | 1.50 | 0.003 | 0.018 |
| SRF1206P380LR | 3.80 | 8.00 | 6 | 50 | 20.0 | 2.00 | 1.20 | 0.003 | 0.022 |
| SRF1206P400LR | 4.00 | 8.00 | 6 | 50 | 20.0 | 2.00 | 1.20 | 0.003 | 0.020 |
| SRF1206P400/12LR | 4.00 | 8.00 | 12 | 50 | 8.00 | 5.00 | 1.20 | 0.003 | 0.014 |
| SRF1206P450LR | 4.50 | 9.00 | 6 | 50 | 22.5 | 2.00 | 1.50 | 0.002 | 0.018 |
| SRF1206P450/12LR | 4.50 | 9.00 | 12 | 50 | 22.5 | 5.00 | 1.50 | 0.002 | 0.014 |
| SRF1206P500LR | 5.00 | 10.00 | 6 | 50 | 25.0 | 2.00 | 1.50 | 0.002 | 0.018 |
| SRF1206P500/12LR | 5.00 | 10.00 | 12 | 50 | 25.0 | 5.00 | 1.50 | 0.002 | 0.013 |
| SRF1206P550LR | 5.50 | 11.00 | 6 | 50 | 27.5 | 2.00 | 1.50 | 0.002 | 0.018 |
| SRF1206P600LR | 6.00 | 12.00 | 6 | 50 | 30.0 | 2.00 | 1.50 | 0.001 | 0.018 |
| SRF1206P650LR | 6.50 | 13.00 | 6 | 50 | 32.5 | 2.00 | 1.50 | 0.001 | 0.018 |
| SRF1206P700LR | 7.00 | 14.00 | 6 | 50 | 35.0 | 2.00 | 1.50 | 0.001 | 0.017 |
| SRF1206P750LR | 7.50 | 15.00 | 6 | 50 | 38.75 | 2.00 | 1.50 | 0.001 | 0.017 |
IH=Hold current: maximum current at which the device will not trip at 25℃ still air.
IT=Trip current: minimum current at which the device will always trip at 25℃ still air.
Vmax=Maximum continuous voltage device can withstand without damage at rated current
Imax=Maximum fault current device can withstand without damage at rated voltage.
Ttrip=Maximum time to trip(s) at assigned current.
Pdtyp=Typical power dissipation: typical amount of power dissipated by the device when in state air environment.
Rmin=Minimum resistance of device in initial (un-soldered) state.
R1max=Maximum resistance of device at 25℃ measured one hour after reflow.
Noted: All electrical function test is conducted after PCB mounted.
Thermal Derating Chart
Hold Current (A)
| Part Number | Ambient Operating Temperature | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| -40°C | -20°C | 0°C | 25°C | 40°C | 50°C | 60°C | 70°C | 85°C | |
| SRF1206P110LR | 1.65 | 1.43 | 1.27 | 1.10 | 0.94 | 0.83 | 0.73 | 0.61 | 0.44 |
| SRF1206P150LR | 2.25 | 1.95 | 1.73 | 1.50 | 1.28 | 1.13 | 1.00 | 0.83 | 0.60 |
| SRF1206P175LR | 2.63 | 2.28 | 2.01 | 1.75 | 1.49 | 1.31 | 1.17 | 0.96 | 0.70 |
| SRF1206P190LR | 2.85 | 2.47 | 2.19 | 1.90 | 1.62 | 1.50 | 1.43 | 1.27 | 1.05 |
| SRF1206P200LR | 3.00 | 2.60 | 2.30 | 2.00 | 1.70 | 1.50 | 1.33 | 1.10 | 0.80 |
| SRF1206P200/12LR | 2.68 | 2.33 | 2.15 | 2.00 | 1.55 | 1.57 | 1.50 | 1.44 | 0.88 |
| SRF1206P260LR | 3.50 | 3.05 | 2.85 | 2.60 | 2.15 | 1.95 | 1.80 | 1.50 | 1.05 |
| SRF1206P300LR | 4.50 | 3.90 | 3.45 | 3.00 | 2.55 | 2.25 | 2.00 | 1.65 | 1.20 |
| SRF1206P300/12LR | 4.50 | 3.90 | 3.45 | 3.00 | 2.55 | 2.25 | 2.00 | 1.65 | 1.20 |
| SRF1206P350LR | 5.25 | 4.55 | 4.03 | 3.50 | 2.98 | 2.63 | 2.33 | 1.93 | 1.40 |
| SRF1206P350/12LR | 5.25 | 4.55 | 4.03 | 3.50 | 2.98 | 2.63 | 2.33 | 1.93 | 1.40 |
| SRF1206P380LR | 5.70 | 4.94 | 4.37 | 3.80 | 3.23 | 2.85 | 2.53 | 2.09 | 1.52 |
| SRF1206P400LR | 6.00 | 5.20 | 4.60 | 4.00 | 3.40 | 3.00 | 2.67 | 2.20 | 1.60 |
| SRF1206P400/12LR | 6.00 | 5.20 | 4.60 | 4.00 | 3.40 | 3.00 | 2.67 | 2.20 | 1.60 |
| SRF1206P450LR | 6.75 | 5.85 | 5.18 | 4.50 | 3.83 | 3.38 | 3.00 | 2.48 | 1.80 |
| SRF1206P450/12LR | 6.20 | 5.65 | 5.25 | 4.50 | 4.15 | 3.45 | 3.15 | 3.00 | 2.40 |
| SRF1206P500LR | 7.50 | 6.50 | 5.76 | 5.00 | 4.26 | 3.76 | 3.30 | 2.76 | 2.00 |
| SRF1206P500/12LR | 7.50 | 6.50 | 5.76 | 5.00 | 4.26 | 3.76 | 3.30 | 2.76 | 2.00 |
| SRF1206P550LR | 8.25 | 7.15 | 6.33 | 5.50 | 4.68 | 4.13 | 3.67 | 3.03 | 2.20 |
| SRF1206P600LR | 9.00 | 7.80 | 6.91 | 6.00 | 5.11 | 4.51 | 4.00 | 3.31 | 2.40 |
| SRF1206P650LR | 9.75 | 8.45 | 7.48 | 6.50 | 5.53 | 4.88 | 4.33 | 3.58 | 2.60 |
| SRF1206P700LR | 10.50 | 9.10 | 8.06 | 7.00 | 5.96 | 5.26 | 4.67 | 3.86 | 2.80 |
| SRF1206P750LR | 11.25 | 9.75 | 8.63 | 7.50 | 6.38 | 5.63 | 5.00 | 4.13 | 3.00 |
Notes: The temperature rerating data is for reference only. Please contact PROSEMI technical support for detail temperature rerating information.
Dimensions (mm)
Recommended Pad Layout (mm)
| Part Number | Marking | A | B | C | D | |||
|---|---|---|---|---|---|---|---|---|
| Min. | Max. | Min. | Max. | Min. | Max. | Min. | ||
| SRF1206P110LR | TC | 3.00 | 3.50 | 1.50 | 1.80 | 0.55 | 0.85 | 0.25 |
| SRF1206P150LR | T1 | 3.00 | 3.50 | 1.50 | 1.80 | 0.50 | 0.80 | 0.25 |
| SRF1206P175LR | T2 | 3.00 | 3.50 | 1.50 | 1.80 | 0.50 | 0.80 | 0.25 |
| SRF1206P190LR | T3 | 3.00 | 3.50 | 1.50 | 1.80 | 0.50 | 0.80 | 0.25 |
| SRF1206P200LR | TD | 3.00 | 3.50 | 1.50 | 1.80 | 0.50 | 0.80 | 0.25 |
| SRF1206P200/12LR | TD | 3.00 | 3.50 | 1.50 | 1.80 | 0.40 | 0.80 | 0.25 |
| SRF1206P260R | TE | 3.00 | 3.50 | 1.50 | 1.80 | 0.40 | 0.80 | 0.25 |
| SRF1206P300LR | TF | 3.00 | 3.50 | 1.50 | 1.80 | 0.40 | 0.80 | 0.25 |
| SRF1206P300/12R | TF | 3.00 | 3.50 | 1.50 | 1.80 | 0.40 | 0.80 | 0.25 |
| SRF1206P350LR | T4 | 3.00 | 3.50 | 1.40 | 1.80 | 0.70 | 1.05 | 0.25 |
| SRF1206P350/12LR | T4 | 3.00 | 3.50 | 1.50 | 1.80 | 0.50 | 1.00 | 0.25 |
| SRF1206P380LR | TH | 3.00 | 3.50 | 1.40 | 1.80 | 0.70 | 1.05 | 0.25 |
| SRF1206P400LR | TI | 3.00 | 3.50 | 1.40 | 1.80 | 0.70 | 1.05 | 0.25 |
| SRF1206P400/12LR | TI | 3.00 | 3.50 | 1.40 | 1.80 | 0.70 | 1.05 | 0.25 |
| SRF1206P450LR | TK | 3.00 | 3.50 | 1.40 | 1.80 | 0.70 | 1.05 | 0.25 |
| SRF1206P450/12LR | T45 | 3.00 | 3.50 | 1.40 | 1.80 | 0.70 | 1.15 | 0.25 |
| SRF1206P500LR | TL | 3.00 | 3.50 | 1.40 | 1.80 | 0.70 | 1.05 | 0.25 |
| SRF1206P500/12LR | T50 | 3.00 | 3.50 | 1.40 | 1.80 | 0.80 | 1.40 | 0.25 |
| SRF1206P550LR | TN | 3.00 | 3.50 | 1.40 | 1.80 | 0.70 | 1.05 | 0.25 |
| SRF1206P600LR | TO | 3.00 | 3.50 | 1.40 | 1.80 | 0.90 | 1.40 | 0.25 |
| SRF1206P650LR | TP | 3.00 | 3.50 | 1.40 | 1.80 | 0.90 | 1.40 | 0.25 |
| SRF1206P700LR | TR | 3.00 | 3.50 | 1.40 | 1.80 | 0.90 | 1.40 | 0.25 |
| SRF1206P750LR | TS | 3.00 | 3.50 | 1.40 | 1.80 | 0.90 | 1.40 | 0.25 |
Solder Reflow Conditions
| Reflow Profile | Lead free |
|---|---|
| Heating rate from Tsmax to Tp | Max. 3℃/second |
| Pre-heat: Tsmin Tsmax Tsmin to Tsmax |
150℃ 200℃ 60~180 seconds |
| Soldering time: Temperature (TL) Time (tL) |
>217℃ 60~150 seconds |
| Peak temperature (Tp) | 260℃ |
| Time at Peak temperature ±5℃ (tp) | 20~40 seconds |
| Cooling rate | Max. 6℃/second |
| Time from 25℃ to Peak Temperature | 8 minutes max |
Cautions for Reflow：
1. Recommended reflow methods: IR, hot air oven, nitrogen oven;
2. The printed solder thickness is not over 0.25mm，Excess solder may cause a short circuit, especially during hand soldering;
3. If reflow temperatures exceed the recommended profile, devices may not meet the performance requirements;
4. Device can not be wave soldered. Please contact Prosemi for hand soldering and dip soldering recommendations;
5. Device can’t contact solvent;
Note：All temperature in top chart is measured on the surface of devices.
Packaging Options
| I hold(A) | Quantity |
|---|---|
| 1.10A~3.00A | 4,000pcs |
| 3.50A~5.50A | 3,500pcs |
| 5.00A/12V,6.00A~7.50A | 3,000pcs |
Reel packaging per EIA-481-1 standard