Datasheets
STP40N20 by:
STMicroelectronics
SGS Thomson
STMicroelectronics
Not Found

40A, 200V, 0.045ohm, N-CHANNEL, Si, POWER, MOSFET, TO-220AB, TO-220, 3 PIN

Part Details for STP40N20 by STMicroelectronics

Results Overview of STP40N20 by STMicroelectronics

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STP40N20 Information

STP40N20 by STMicroelectronics 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.

Part Details for STP40N20

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STP40N20 Part Data Attributes

STP40N20 STMicroelectronics
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STP40N20 STMicroelectronics 40A, 200V, 0.045ohm, N-CHANNEL, Si, POWER, MOSFET, TO-220AB, TO-220, 3 PIN
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Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Obsolete
Ihs Manufacturer STMICROELECTRONICS
Part Package Code TO-220AB
Package Description TO-220, 3 PIN
Pin Count 3
Reach Compliance Code not_compliant
ECCN Code EAR99
Avalanche Energy Rating (Eas) 230 mJ
Case Connection DRAIN
Configuration SINGLE WITH BUILT-IN DIODE
DS Breakdown Voltage-Min 200 V
Drain Current-Max (ID) 40 A
Drain-source On Resistance-Max 0.045 Ω
FET Technology METAL-OXIDE SEMICONDUCTOR
JEDEC-95 Code TO-220AB
JESD-30 Code R-PSFM-T3
JESD-609 Code e3
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) 160 W
Pulsed Drain Current-Max (IDM) 160 A
Qualification Status Not Qualified
Surface Mount NO
Terminal Finish MATTE TIN
Terminal Form THROUGH-HOLE
Terminal Position SINGLE
Transistor Application SWITCHING
Transistor Element Material SILICON

Alternate Parts for STP40N20

This table gives cross-reference parts and alternative options found for STP40N20. 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 STP40N20, 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
IPB80N06S2LH5ATMA1 Infineon Technologies AG Check for Price Power Field-Effect Transistor, 80A I(D), 55V, 0.0062ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-263AB, GREEN, PLASTIC, TO-263, 3 PIN STP40N20 vs IPB80N06S2LH5ATMA1
STD3NA50T4 STMicroelectronics Check for Price 2.7A, 500V, 3ohm, N-CHANNEL, Si, POWER, MOSFET, TO-252AA, DPAK-3 STP40N20 vs STD3NA50T4
934057024118 NXP Semiconductors Check for Price 75A, 30V, 0.0152ohm, N-CHANNEL, Si, POWER, MOSFET, PLASTIC, SMD, D2PAK-3 STP40N20 vs 934057024118
STH8NA60 STMicroelectronics Check for Price 8A, 600V, 1ohm, N-CHANNEL, Si, POWER, MOSFET, TO-218 STP40N20 vs STH8NA60
STP7NE10 STMicroelectronics Check for Price 7A, 100V, 0.4ohm, N-CHANNEL, Si, POWER, MOSFET, TO-220AB, TO-220, 3 PIN STP40N20 vs STP7NE10
STD65N6F3 STMicroelectronics Check for Price 65A, 60V, 0.0105ohm, N-CHANNEL, Si, POWER, MOSFET, ROHS COMPLIANT, DPAK-3 STP40N20 vs STD65N6F3
FDP6035L Fairchild Semiconductor Corporation Check for Price Power Field-Effect Transistor, 58A I(D), 30V, 0.011ohm, 1-Element, N-Channel, Silicon, Metal-oxide Semiconductor FET, TO-220AB, TO-220, 3 PIN STP40N20 vs FDP6035L
NDB705BEL National Semiconductor Corporation Check for Price TRANSISTOR 70 A, 50 V, 0.018 ohm, N-CHANNEL, Si, POWER, MOSFET, TO-263AB, FET General Purpose Power STP40N20 vs NDB705BEL
STD5NE10T4 STMicroelectronics Check for Price 5A, 100V, 0.4ohm, N-CHANNEL, Si, POWER, MOSFET, TO-252AA, DPAK-3 STP40N20 vs STD5NE10T4
NDB705BE Texas Instruments Check for Price 70A, 50V, 0.018ohm, N-CHANNEL, Si, POWER, MOSFET, TO-263AB STP40N20 vs NDB705BE

STP40N20 Related Parts

STP40N20 Frequently Asked Questions (FAQ)

  • The maximum safe operating area (SOA) for the STP40N20 is not explicitly stated in the datasheet, but it can be estimated based on the device's thermal resistance and maximum junction temperature. A general rule of thumb is to limit the device's power dissipation to 50-70% of its maximum rating to ensure reliable operation.

  • To minimize switching losses, ensure that the gate drive voltage is sufficient (typically 10-15V) and the gate resistance is minimized (typically <10 ohms). Also, use a gate driver with a high current capability (>1A) and a fast rise/fall time (<10ns) to quickly charge/discharge the gate capacitance.

  • For optimal thermal performance, use a PCB with a thick copper layer (>1 oz) and a large thermal pad (>1 cm^2) connected to the drain pin. Ensure good thermal conduction by using thermal vias and a thermal interface material (TIM) between the device and the heat sink. Keep the PCB layout compact and symmetrical to minimize parasitic inductance and capacitance.

  • Use a voltage clamp or a zener diode to limit the voltage across the device to its maximum rating (40V). Implement overcurrent protection using a current sense resistor and a comparator or a dedicated overcurrent protection IC. Consider using a fuse or a PTC resettable fuse for added protection.

  • The STP40N20 has a typical lifespan of 10-15 years in a typical application, assuming proper thermal management and operation within the recommended specifications. The device's reliability is influenced by factors such as junction temperature, voltage stress, and current density. Follow the recommended derating guidelines and ensure proper thermal management to maximize the device's lifespan.