Datasheets
IRFS250B by:
Fairchild Semiconductor Corporation

Power Field-Effect Transistor, 21.3A I(D), 200V, 0.085ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-3PF, 3 PIN

Part Details for IRFS250B by Fairchild Semiconductor Corporation

Results Overview of IRFS250B by Fairchild Semiconductor Corporation

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IRFS250B Information

IRFS250B by Fairchild Semiconductor Corporation is a Power Field-Effect Transistor.
Power Field-Effect Transistors are under the broader part category of Transistors.

A transistor is a small semiconductor device used to amplify, control, or create electrical signals. When selecting a transistor, factors such as voltage, current rating, gain, and power dissipation must be considered, with common types. Read more about Transistors on our Transistors part category page.

Price & Stock for IRFS250B

Part # Distributor Description Stock Price Buy
Rochester Electronics 21.3A, 200V, 0.085ohm, N-Channel Power MOSFET RoHS: Not Compliant Status: Obsolete Min Qty: 1 232
  • 100 $0.9511
  • 500 $0.8560
  • 1,000 $0.7894
  • 10,000 $0.7038
  • 100,000 $0.5897
$0.5897 / $0.9511 Buy Now

Part Details for IRFS250B

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IRFS250B Part Data Attributes

IRFS250B Fairchild Semiconductor Corporation
Buy Now Datasheet
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IRFS250B Fairchild Semiconductor Corporation Power Field-Effect Transistor, 21.3A I(D), 200V, 0.085ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-3PF, 3 PIN
Rohs Code No
Part Life Cycle Code Obsolete
Ihs Manufacturer FAIRCHILD SEMICONDUCTOR CORP
Part Package Code TO-3PF
Package Description TO-3PF, 3 PIN
Pin Count 3
Reach Compliance Code compliant
ECCN Code EAR99
Avalanche Energy Rating (Eas) 600 mJ
Case Connection ISOLATED
Configuration SINGLE WITH BUILT-IN DIODE
DS Breakdown Voltage-Min 200 V
Drain Current-Max (ID) 21.3 A
Drain-source On Resistance-Max 0.085 Ω
FET Technology METAL-OXIDE SEMICONDUCTOR
JESD-30 Code R-PSFM-T3
JESD-609 Code e0
Number of Elements 1
Number of Terminals 3
Operating Mode ENHANCEMENT MODE
Operating Temperature-Max 150 °C
Package Body Material PLASTIC/EPOXY
Package Shape RECTANGULAR
Package Style FLANGE MOUNT
Polarity/Channel Type N-CHANNEL
Power Dissipation-Max (Abs) 90 W
Pulsed Drain Current-Max (IDM) 85 A
Qualification Status Not Qualified
Surface Mount NO
Terminal Finish TIN LEAD
Terminal Form THROUGH-HOLE
Terminal Position SINGLE
Transistor Application SWITCHING
Transistor Element Material SILICON

Alternate Parts for IRFS250B

This table gives cross-reference parts and alternative options found for IRFS250B. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of IRFS250B, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
IRFS250B Rochester Electronics LLC Check for Price 21.3A, 200V, 0.085ohm, N-CHANNEL, Si, POWER, MOSFET, TO-3PF, 3 PIN IRFS250B vs IRFS250B
Part Number Manufacturer Composite Price Description Compare
FDP2570 Fairchild Semiconductor Corporation Check for Price Power Field-Effect Transistor, 22A I(D), 150V, 0.08ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-220AB, TO-220, 3 PIN IRFS250B vs FDP2570
IPI530N15N3G Infineon Technologies AG Check for Price Power Field-Effect Transistor, 21A I(D), 150V, 0.053ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-262AA, GREEN, PLASTIC, TO-262, 3 PIN IRFS250B vs IPI530N15N3G
IRFS4228TRLPBF International Rectifier Check for Price Power Field-Effect Transistor, 83A I(D), 150V, 0.015ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-263AB, LEAD FREE, D2PAK-3 IRFS250B vs IRFS4228TRLPBF
IRFP240B Fairchild Semiconductor Corporation Check for Price Power Field-Effect Transistor, 20A I(D), 200V, 0.18ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-3P, 3 PIN IRFS250B vs IRFP240B
IRFS4228TRRPBF Infineon Technologies AG Check for Price Power Field-Effect Transistor, 83A I(D), 150V, 0.015ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-263AB, LEAD FREE, D2PAK-3 IRFS250B vs IRFS4228TRRPBF
BUZ21SMD Infineon Technologies AG Check for Price Power Field-Effect Transistor, 21A I(D), 100V, 0.085ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, D2PAK-3 IRFS250B vs BUZ21SMD
2SK3600-01S Fuji Electric Co Ltd Check for Price Power Field-Effect Transistor, 20A I(D), 100V, 0.062ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TPACK-3 IRFS250B vs 2SK3600-01S
FDD3690 Fairchild Semiconductor Corporation Check for Price Power Field-Effect Transistor, 22A I(D), 100V, 0.064ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-252, DPAK-3 IRFS250B vs FDD3690
STP22NE10L STMicroelectronics Check for Price 22A, 100V, 0.1ohm, N-CHANNEL, Si, POWER, MOSFET, TO-220AB, TO-220, 3 PIN IRFS250B vs STP22NE10L
SUM75N15-18P-E3 Vishay Siliconix Check for Price TRANSISTOR 75 A, 150 V, 0.018 ohm, N-CHANNEL, Si, POWER, MOSFET, TO-263AB, ROHS COMPLIANT, TO-263, 3 PIN, FET General Purpose Power IRFS250B vs SUM75N15-18P-E3

IRFS250B Frequently Asked Questions (FAQ)

  • The maximum safe operating area (SOA) for the IRFS250B is not explicitly stated in the datasheet, but it can be determined by consulting the Fairchild Semiconductor application note AN-936, which provides guidelines for calculating the SOA for power MOSFETs.

  • The junction-to-case thermal resistance (RθJC) for the IRFS250B can be calculated using the thermal resistance values provided in the datasheet. The RθJC is typically around 0.5°C/W for the IRFS250B, but it can vary depending on the specific application and cooling conditions.

  • The recommended gate drive voltage for the IRFS250B is typically between 10V to 15V, but it can vary depending on the specific application and switching frequency. A higher gate drive voltage can improve the switching performance, but it also increases the power consumption and EMI.

  • To prevent shoot-through current in a half-bridge configuration using the IRFS250B, it is recommended to use a dead-time control circuit to ensure that the high-side and low-side MOSFETs are not turned on simultaneously. Additionally, the gate drive voltage and switching frequency should be optimized to minimize the overlap time between the two MOSFETs.

  • The maximum allowed drain-source voltage (VDS) for the IRFS250B during startup and shutdown is typically around 200V, but it can vary depending on the specific application and circuit configuration. It is recommended to use a soft-start circuit or a voltage ramp-up circuit to limit the VDS during startup and shutdown.

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