0805 Polymeric PTC Resettable SMD Fuses
0805 Polymeric PTC Resettable SMD Fuses
SMD Fuses Description
The POLYFUSE LoRho Surface Mount Resettable PPTC series(SMD Fuses) offers ultra-low internal resistance while maintaining the high level electrical characteristics and performance provided by standard PPTC products from RT sensor.
RT Sensor's surface mountable polymeric positive temperature coefficient (PPTC) resettable fuses are offered in five EIA/IECQ case sizes ranging from 0805 to 2920. These chip fuses are rated up to 60 VDC with current ratings up to 3 A.
Chips are specifically engineered to limit the flow of dangerously high current during fault conditions to protect products and systems from overcurrent surges and overtemperature faults. In the event of a fault, fuses reset themselves once power is removed, the fault is corrected, and the voltage is reapplied. The fuses' resettable functionality, coupled with unparalleled reliability, makes them an ideal alternative to traditional fuses and fusible links.
SMD Fuses Features
- Fast trip time
- Industry-standard 0805, 1206, 1210, 1812, or 2920 footprint
- Current ratings from 50 mA to 3 A
- Operating temperature range from -40°C to +85°C
SMD FusesApplications
Battery and port protection
- Mobile phones
- Game consoles
- PC motherboards and peripherals
- USB peripherals
- Disk drives
- CD-ROMs
Safety and reliability
- PDAs/digital cameras
- MP3 players
- Video recorders
- Set-top boxes
SMD Fuses Electrical Characteristics
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IH, (A) | IT,(A) | Vmax,(v) | Imax,(A) | (A) | (Sec.) | Pd typ(W) | Rmin | R1max | ||
PSMD010 | 0.10 | 0.30 | 15.0 | 40 | 0.5 | 1.50 | 0.50 | 1.000 | 7.500 | |
PSMD020 | 0.20 | 0.50 | 9.0 | 40 | 8.0 | 0.02 | 0.50 | 0.650 | 3.500 | |
PSMD035 | 0.35 | 0.75 | 6.0 | 40 | 8.0 | 0.10 | 0.50 | 0.250 | 1.200 | |
PSMD050 | 0.50 | 1.00 | 6.0 | 40 | 8.0 | 0.10 | 0.50 | 0.150 | 0.900 | |
PSMD075 | 0.75 | 1.50 | 6.0 | 40 | 8.0 | 0.20 | 0.60 | 0.090 | 0.350 | |
PSMD100 | 1.00 | 2.00 | 6.0 | 40 | 8.0 | 0.30 | 0.60 | 0.060 | 0.250 | |
PSMD110 | 1.10 | 2.20 | 6.0 | 40 | 8.0 | 0.30 | 0.60 | 0.060 | 0.210 | |
SMD Fuses Product Dimensions & Marking (Unit: mm)
SMD Fuses Thermal Derating Chart – I hold (Amps)
P/N | Ambient Operating Temperature | ||||||||
-40℃ | -20℃ | 0℃ | 25℃ | 40℃ | 50℃ | 60℃ | 70℃ | 85℃ | |
PSMD010 | 0.15 | 0.13 | 0.12 | 0.10 | 0.09 | 0.08 | 0.07 | 0.06 | 0.05 |
PSMD020 | 0.28 | 0.25 | 0.23 | 0.20 | 0.17 | 0.14 | 0.12 | 0.10 | 0.07 |
PSMD035 | 0.47 | 0.44 | 0.39 | 0.35 | 0.30 | 0.27 | 0.24 | 0.20 | 0.14 |
PSMD050 | 0.68 | 0.62 | 0.55 | 0.50 | 0.40 | 0.37 | 0.33 | 0.29 | 0.23 |
PSMD075 | 1.00 | 0.90 | 0.79 | 0.75 | 0.63 | 0.57 | 0.53 | 0.42 | 0.35 |
PSMD100 | 1.45 | 1.35 | 1.20 | 1.00 | 0.92 | 0.84 | 0.75 | 0.65 | 0.52 |
PSMD110 | 1.45 | 1.35 | 1.20 | 1.10 | 0.92 | 0.84 | 0.75 | 0.65 | 0.52 |
SMD Fuses Typical time to trip at 25℃
SMD Fuses Agency Approvals:
Agency Approvals:UL,CSA,TUV
Regulation/Standard: RoHS 2.0(2011/65/CE)
SMD Fuses Package information:
Model Q’ty/Reel
PSMD010/PSMD020/PSMD075/PSMD100/PSMD110 3500 pcs
PSMD035/PSMD050 4500 pcs
Note: Reel packaging per EIA-481-1 standard
SMD Fuses Pictures
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