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International Rectifier IRF7853PBF

International Rectifier - IRF7853PBF - MOSFET,  Power;  N-Ch;  VDSS 100V;  RDS(ON) 14.4 Milliohms;  ID 8.3A;  SO-8;  PD 2.5W;  gFS 11S View larger image View larger image
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International Rectifier MOSFET, Power; N-Ch; VDSS 100V; RDS(ON) 14.4 Milliohms; ID 8.3A; SO-8; PD 2.5W; gFS 11S
Mfr. Part#:

Allied Stock#: 70017361

 RoHS Compliant Part

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Pricing (USD) & Availability
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$0.629 (Each)
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$1.79 (Each)

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Brand/Series: HEXFET Series
Capacitance, Input: 1640 pF @ 25 V
Channel Mode: Enhancement
Channel Type: N
Configuration: Quad Drain, Triple Source
Current, Drain: 8.3 A
Dimensions: 5.00 x 4.00 x 1.50 mm
Gate Charge, Total: 28 nC
Height: 0.059" (1.5mm)
Length: 0.196" (5mm)
Mounting Type: Surface Mount
Number of Elements per Chip: 1
Number of Pins: 8
Package Type: SO-8
Polarization: N-Channel
Power Dissipation: 2.5 W
Resistance, Drain to Source On: 18
Temperature, Operating, Maximum: +150 °C
Temperature, Operating, Minimum: -55 °C
Temperature, Operating, Range: -55 to +150 °C
Time, Turn-Off Delay: 26 ns
Time, Turn-On Delay: 13 ns
Transconductance, Forward: 11 S
Typical Gate Charge @ Vgs: 28 nC @ 10 V
Voltage, Breakdown, Drain to Source: 100 V
Voltage, Drain to Source: 100 V
Voltage, Forward, Diode: 1.3 V
Voltage, Gate to Source: ±20 V
Width: 0.157" (4mm)


"The IRF7853PbF is designed for AC-DC secondary-side synchronous rectification, isolated medium-power DC-DC applications.

The 100V IRF7853 is also optimized for wide-range communication bus input (36V to 75V) primary-side bridge topologies in isolated DC-DC bus converters. The 80V IRF7854 is useful for active ORing and hot-swap applications. All three of the MOSFETs are designed for secondary-side synchronous rectification in 5-19Vout flyback converter and resonant half-bridge applications and are suitable for isolated DC-DC applications as primary-side switches in forward or push-pull topologies for 18-36Vin isolated DC-DC converters.

Together with IRs low-voltage MOSFETs and controller ICs, these mid-range MOSFETs form secondary-side chipsets for medium-power, converter applications. In addition, when combined with the SmartRectifierTM IR1167 in AC-DC power supplies such as laptop adaptors, for example, these new SO-8 devices can replace two of their large TO-220 MOSFET counterparts and their associated heatsinks, improving overall system efficiency by as much as 1%. "
  • Primary Side Switch in Bridge Topology in Universal Input (36-75Vin) Isolated DC-DC Converters
  • Primary Side Switch in Push-Pull Topology for 18-36Vin Isolated DC-DC Converters
  • Secondary Side Synchronous Rectification Switch for 15Vout
  • Suitable for 48V Non-Isolated Synchronous Buck DC-DC Applications

  • Low Gate to Drain Charge to Reduce Switching Losses
  • Fully Characterized Capacitance Including Effective COSS to Simplify Design, (See App. Note AN1001)
  • Fully Characterized Avalanche Voltage"

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