SMD PPTC Resettable Fuse
Price:
Negotiable
MOQ:
1500pcs
Delivery Time:
7-10 Days
Brand:
UCHI
Product Description
SMD PTC Reset 2920 Concave Case Surface Mount PPTC Resettable Fuse 0.3-7A 33V 1.85A Ih
Features
Operation Current: 0.01A ~ 5.0A
Maximum Voltage: 6V ~ 60V
Temperature Range: -40ºC to 85ºC
Excellent for high density applications
Faster time to trip than standard SMD devices
Solid state, Surface mountable: 0603, 0805, 1206, 1210, 1812, 2920
Performance Specification
| Model | V max |
Imax |
I hold |
I trip |
Maximum | Resistance | |||
| Pd | Time To Trip | ||||||||
| @25°C | @25°C | Typ. | Current | Time | R i min | R1max | |||
| (V dc) | (A) | (A) | (A) | (W) | (A) | (Sec) | (W) | (W) | |
| SMD2920R030SF | 60 | 10 | 0.30 | 0.60 | 1.5 | 1.5 | 3.0 | 0.600 | 4.800 |
| SMD2920R050SF | 60 | 10 | 0.50 | 1.00 | 1.5 | 2.5 | 4.0 | 0.180 | 1.400 |
| SMD2920R075SF | 33 | 40 | 0.75 | 1.50 | 1.5 | 8.0 | 0.3 | 0.100 | 1.000 |
| SMD2920R075SF60V | 60 | 40 | 0.75 | 1.50 | 1.5 | 8.0 | 0.3 | 0.100 | 1.000 |
| SMD2920R100SF | 33 | 40 | 1.10 | 2.20 | 1.5 | 8.0 | 0.5 | 0.065 | 0.410 |
| SMD2920R100SF60V | 60 | 40 | 1.10 | 2.20 | 1.5 | 8.0 | 0.5 | 0.065 | 0.410 |
| SMD2920R125SF | 33 | 40 | 1.25 | 2.50 | 1.5 | 8.0 | 2.0 | 0.050 | 0.250 |
| SMD2920R150SF | 33 | 40 | 1.50 | 3.00 | 1.5 | 8.0 | 2.0 | 0.035 | 0.230 |
| SMD2920R185SF | 33 | 40 | 1.85 | 3.70 | 1.5 | 8.0 | 2.5 | 0.030 | 0.150 |
| SMD2920R200SF | 16 | 40 | 2.00 | 4.00 | 1.5 | 8.0 | 4.5 | 0.020 | 0.120 |
| SMD2920R200SF24V | 24 | 40 | 2.00 | 4.00 | 1.5 | 8.0 | 4.5 | 0.020 | 0.120 |
| SMD2920R200SF33V | 33 | 40 | 2.00 | 4.00 | 1.5 | 8.0 | 4.5 | 0.020 | 0.120 |
| SMD2920R250SF | 16 | 40 | 2.50 | 5.00 | 1.5 | 8.0 | 16.0 | 0.020 | 0.085 |
| SMD2920R250SF24V | 24 | 40 | 2.50 | 5.00 | 1.5 | 8.0 | 16.0 | 0.020 | 0.085 |
| SMD2920R260SF | 6 | 40 | 2.60 | 5.20 | 1.5 | 8.0 | 10.0 | 0.014 | 0.075 |
| SMD2920R260SF16V | 16 | 40 | 2.60 | 5.20 | 1.5 | 8.0 | 10.0 | 0.014 | 0.075 |
| SMD2920R300SF | 6 | 40 | 3.00 | 6.00 | 1.5 | 8.0 | 20.0 | 0.012 | 0.048 |
| SMD2920R300SF16v | 16 | 40 | 3.00 | 6.00 | 1.5 | 8.0 | 20.0 | 0.012 | 0.048 |
| SMD2920R400SF | 6 | 40 | 4.00 | 8.00 | 1.5 | 20.0 | 4.0 | 0.008 | 0.040 |
| SMD2920R400SF16V | 16 | 40 | 4.00 | 8.00 | 1.5 | 20.0 | 4.0 | 0.008 | 0.040 |
| SMD2920R500SF | 6 | 40 | 5.00 | 10.00 | 1.5 | 25.0 | 5.0 | 0.005 | 0.031 |
| SMD2920R500SF12V | 12 | 40 | 5.00 | 10.00 | 1.5 | 25.0 | 5.0 | 0.005 | 0.031 |
| SMD2920R500SF16V | 16 | 40 | 5.00 | 10.00 | 1.5 | 25.0 | 5.0 | 0.005 | 0.031 |
| SMD2920R600SF | 6 | 40 | 6.00 | 12.00 | 1.5 | 25.0 | 6.0 | 0.004 | 0.020 |
| SMD2920R600SF12v | 12 | 40 | 6.00 | 12.00 | 1.5 | 25.0 | 6.0 | 0.004 | 0.020 |
| SMD2920R700SF | 6 | 40 | 7.00 | 14.00 | 1.5 | 25.0 | 6.0 | 0.0025 | 0.010 |
| SMD2920R700SF12v | 12 | 40 | 7.00 | 14.00 | 1.5 | 25.0 | 6.0 | 0.0025 | 0.010 |
V max = Maximum operating voltage device can withstand without damage at rated current (Imax).
I max = Maximum fault current device can withstand without damage at rated voltage (V max).
I hold = Hold Current. Maximum current device will not trip in 25°C still air.
I trip = Trip Current. Minimum current at which the device will always trip in 25°C still air.
Pd = Power dissipation when device is in the tripped state in 25°C still air environment at rated voltage.
Ri min/max = Minimum/Maximum device resistance prior to tripping at 25°C.
R1max = Maximum device resistance is measured one hour post reflow.
CAUTION : Operation beyond the specified ratings may result in damage and possible arcing and flame.
I max = Maximum fault current device can withstand without damage at rated voltage (V max).
I hold = Hold Current. Maximum current device will not trip in 25°C still air.
I trip = Trip Current. Minimum current at which the device will always trip in 25°C still air.
Pd = Power dissipation when device is in the tripped state in 25°C still air environment at rated voltage.
Ri min/max = Minimum/Maximum device resistance prior to tripping at 25°C.
R1max = Maximum device resistance is measured one hour post reflow.
CAUTION : Operation beyond the specified ratings may result in damage and possible arcing and flame.
Environmental Specifications
| Test | Conditions | Resistance change | |||
| Passive aging | +85°C, 1000 hrs. | ±5% typical | |||
| Humidity aging | +85°C, 85% R.H. , 168 hours | ±5% typical | |||
| Thermal shock | +85°C to -40°C, 20 times | ±33% typical | |||
| Resistance to solvent | MIL-STD-202,Method 215 | No change | |||
| Vibration | MIL-STD-202,Method 201 | No change | |||
| Ambient operating conditions : - 40 °C to +85 °C | |||||
| Maximum surface temperature of the device in the tripped state is 125 °C | |||||
Thermal Derading Chart
Recommended Hold Current(A) at Ambient Temperature(°C)
| Model | Ambient Operation Temperature | ||||||||
| -40°C | -20°C | 0°C | 25°C | 40°C | 50°C | 60°C | 70°C | 85°C | |
| SMD2920R030SF | 0.45 | 0.40 | 0.35 | 0.30 | 0.25 | 0.23 | 0.20 | 0.17 | 0.14 |
| SMD2920R050SF | 0.76 | 0.67 | 0.59 | 0.50 | 0.42 | 0.38 | 0.33 | 0.29 | 0.23 |
| SMD2920R075SF | 1.13 | 1.01 | 0.88 | 0.75 | 0.62 | 0.56 | 0.50 | 0.44 | 0.34 |
| SMD2920R100SF | 1.66 | 1.47 | 1.29 | 1.10 | 0.91 | 0.83 | 0.73 | 0.64 | 0.50 |
| SMD2920R125SF | 1.89 | 1.68 | 1.46 | 1.25 | 1.04 | 0.94 | 0.83 | 0.73 | 0.56 |
| SMD2920R150SF | 2.27 | 2.01 | 1.76 | 1.50 | 1.25 | 1.13 | 1.00 | 0.87 | 0.74 |
| SMD2920R185SF | 2.80 | 2.47 | 2.17 | 1.85 | 1.54 | 1.39 | 1.22 | 1.07 | 0.85 |
| SMD2920R200SF | 3.02 | 2.68 | 2.34 | 2.00 | 1.66 | 1.50 | 1.32 | 1.16 | 0.90 |
| SMD2920R250SF | 3.78 | 3.35 | 2.93 | 2.50 | 2.08 | 1.88 | 1.65 | 1.45 | 1.13 |
| SMD2920R260SF | 3.64 | 3.25 | 2.91 | 2.60 | 2.26 | 2.08 | 1.95 | 1.74 | 1.13 |
| SMD2920R300SF | 4.53 | 4.02 | 3.51 | 3.00 | 2.52 | 2.26 | 1.99 | 1.75 | 1.34 |
| SMD2920R400SF | 6.04 | 5.36 | 4.68 | 4.00 | 3.36 | 3.01 | 2.65 | 2.33 | 1.79 |
| SMD2920R500SF | 7.55 | 6.70 | 5.85 | 5.00 | 4.20 | 3.77 | 3.32 | 2.92 | 2.23 |
| SMD2920R600SF | 8.60 | 7.70 | 6.80 | 6.00 | 4.95 | 4.60 | 4.06 | 3.65 | 3.15 |
| SMD2920R700SF | 10.03 | 8.98 | 7.93 | 7.00 | 5.77 | 5.36 | 4.73 | 4.26 | 3.68 |
Physical Dimensions(mm.)

| Model | A | B | C | D | E | |||
| Min. | Max. | Min. | Max. | Min. | Max. | Min. | Min. | |
| SMD2920R030SF | 6.73 | 7.98 | 4.80 | 5.44 | 0.60 | 1.20 | 0.30 | 0.25 |
| SMD2920R050SF | 6.73 | 7.98 | 4.80 | 5.44 | 0.60 | 1.20 | 0.30 | 0.25 |
| SMD2920R075SF | 6.73 | 7.98 | 4.80 | 5.44 | 0.70 | 1.30 | 0.30 | 0.25 |
| SMD2920R075SF60V | 6.73 | 7.98 | 4.80 | 5.44 | 0.70 | 1.30 | 0.30 | 0.25 |
| SMD2920R100SF | 6.73 | 7.98 | 4.80 | 5.44 | 0.40 | 1.00 | 0.30 | 0.25 |
| SMD2920R100SF60V | 6.73 | 7.98 | 4.80 | 5.44 | 1.00 | 2.10 | 0.30 | 0.25 |
| SMD2920R125SF | 6.73 | 7.98 | 4.80 | 5.44 | 0.40 | 1.00 | 0.30 | 0.25 |
| SMD2920R150SF | 6.73 | 7.98 | 4.80 | 5.44 | 0.50 | 1.30 | 0.30 | 0.25 |
| SMD2920R185SF | 6.73 | 7.98 | 4.80 | 5.44 | 0.70 | 1.40 | 0.30 | 0.25 |
| SMD2920R200SF | 6.73 | 7.98 | 4.80 | 5.44 | 0.70 | 1.40 | 0.30 | 0.25 |
| SMD2920R200SF24V | 6.73 | 7.98 | 4.80 | 5.44 | 0.70 | 1.40 | 0.30 | 0.25 |
| SMD2920R200SF33V | 6.73 | 7.98 | 4.80 | 5.44 | 0.70 | 1.40 | 0.30 | 0.25 |
| SMD2920R250SF | 6.73 | 7.98 | 4.80 | 5.44 | 0.7 | 1.40 | 0.30 | 0.25 |
| SMD2920R250SF24V | 6.73 | 7.98 | 4.80 | 5.44 | 0.7 | 1.40 | 0.30 | 0.25 |
| SMD2920R260SF | 6.73 | 7.98 | 4.80 | 5.44 | 0.7 | 1.40 | 0.30 | 0.25 |
| SMD2920R260SF16V | 6.73 | 7.98 | 4.80 | 5.44 | 0.70 | 1.40 | 0.30 | 0.25 |
| SMD2920R300SF | 6.73 | 7.98 | 4.80 | 5.44 | 0.60 | 1.20 | 0.30 | 0.25 |
| SMD2920R300SF16V | 6.73 | 7.98 | 4.80 | 5.44 | 0.60 | 1.20 | 0.30 | 0.25 |
| SMD2920R400SF | 6.73 | 7.98 | 4.80 | 5.44 | 1.00 | 1.60 | 0.30 | 0.25 |
| SMD2920R400SF16V | 6.73 | 7.98 | 4.80 | 5.44 | 1.00 | 1.60 | 0.30 | 0.25 |
| SMD2920R500SF | 6.73 | 7.98 | 4.80 | 5.44 | 1.00 | 1.60 | 0.30 | 0.25 |
| SMD2920R500SF12V | 6.73 | 7.98 | 4.80 | 5.44 | 1.00 | 1.60 | 0.30 | 0.25 |
| SMD2920R500SF16V | 6.73 | 7.98 | 4.80 | 5.44 | 1.00 | 1.60 | 0.30 | 0.25 |
| SMD2920R600SF | 6.73 | 7.98 | 4.80 | 5.44 | 1.00 | 1.60 | 0.30 | 0.25 |
| SMD2920R600SF12V | 6.73 | 7.98 | 4.80 | 5.44 | 1.00 | 1.60 | 0.30 | 0.25 |
| SMD2920R700SF | 6.73 | 7.98 | 4.80 | 5.44 | 1.00 | 1.60 | 0.30 | 0.25 |
| SMD2920R700SF12V | 6.73 | 7.98 | 4.80 | 5.44 | 1.00 | 1.60 | 0.30 | 0.25 |
Termination Pad Characteristics
Terminal pad materials:Tin-plated Nickel-Copper
Terminal pad solder ability:Meets EIA specification RS186-9E and ANSI/J-STD-002 Category 3.
Terminal pad materials:Tin-plated Nickel-Copper
Terminal pad solder ability:Meets EIA specification RS186-9E and ANSI/J-STD-002 Category 3.
Recommended Pad Layout (mm.)
Packaging Quantity
| Part Number | Quantity |
| SMD2920 Series | 1500 pcs/reel |
Tape & reel packaging per EIA481-1
Related Videos
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Guangdong Uchi Electronics Co.,Ltd
Location
Room 810, Unit 2, Building 5, Huixing Commercial Center, Dongsheng Road No.1, Zhongshan Dong, Shilong Town Dongguan, GUANGDONG, 523326 CN
Contact Person
Anna

