IRF740Alternatives & Equivalent Parts
About IRF740
IRF740 is a MOSFET (N-Channel) component manufactured by STMicroelectronics. It comes in a Transistor Outline, Vertical package. Below you'll find known alternative and equivalent parts that can serve as replacements in your design.
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Specification Comparison
| Parameter | IRF740Source | ADSP-21584KBCZ-4A | UC3843AD8G4 | TC6502P085VCTTR | O31310QRWGRQ1 |
|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | Analog Devices | Texas Instruments | Microchip | Texas Instruments |
| Package Type | Transistor Outline, Vertical | BGA | Small Outline Packages | SOT23 (5-Pin) | Quad Flat No-Lead |
| Pin Count | 3 | 349 | 8 | 5 | 41 |
| Temperature Range | -55.0°C ~ 150.0°C | ~ 70.0°C | ~ 70.0°C | -55.0°C ~ 135.0°C | -40.0°C ~ 125.0°C |
| Price | $1.5000 | $30.8900 | $0.2990 | $0.5211 | $4.7280 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | OBSOLETE | ACTIVE | OBSOLETE | NOT RECOMMENDED | ACTIVE |
| Electrical Parameters | |||||
| Reach Compliance Code | Unknown | — | — | — | — |
| YTEOL | 0 | 10 | 0 | 3 | 15 |
| Configuration | SINGLE | — | — | — | — |
| DS Breakdown Voltage-Min | 400 V | — | — | — | — |
| Drain Current-Max (ID) | 10 A | — | — | — | — |
| Drain-source On Resistance-Max | 0.55 Ω | — | — | — | — |
| FET Technology | METAL-OXIDE SEMICONDUCTOR | — | — | — | — |
| JEDEC-95 Code | TO-220AB | — | — | — | — |
| JESD-30 Code | R-PSFM-T3 | S-PBGA-B349 | R-PDSO-G8 | — | S-PQCC-N40 |
| JESD-609 Code | e0 | e1 | e4 | e3 | e4 |
| Number of Elements | 1 | — | — | — | — |
| Operating Mode | ENHANCEMENT MODE | — | — | — | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC/EPOXY | PLASTIC | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR | SQUARE | RECTANGULAR | — | SQUARE |
| Package Style | FLANGE MOUNT | GRID ARRAY, LOW PROFILE, FINE PITCH | SMALL OUTLINE | — | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Polarity/Channel Type | N-CHANNEL | — | — | — | — |
| Qualification Status | Not Qualified | — | Not Qualified | — | — |
| Surface Mount | NO | YES | YES | YES | YES |
| Terminal Finish | TIN LEAD | Tin/Silver/Copper (Sn/Ag/Cu) | Nickel/Palladium/Gold (Ni/Pd/Au) | Matte Tin (Sn) | Nickel/Palladium/Gold/Silver (Ni/Pd/Au/Ag) |
| Terminal Form | THROUGH-HOLE | BALL | GULL WING | — | NO LEAD |
| Terminal Position | SINGLE | BOTTOM | DUAL | — | QUAD |
| Transistor Element Material | SILICON | — | — | — | — |
| Pbfree Code | — | No | Yes | Yes | Yes |
| Manufacturer Package Code | — | BC-349-1 | — | SOT-23-5 | — |
| Bus Compatibility | — | SPI; UART | — | — | — |
| Clock Frequency-Max | — | 500 MHz | — | — | — |
| Package Equivalence Code | — | BGA529,23X23,32 | SOP8,.25 | TSOP5/6,.11,37 | LCC40,.24SQ,20 |
| Peak Reflow Temperature (Cel) | — | 260 | 260 | — | 260 |
| Supply Voltage-Max | — | 1.15 V | — | 5.5 V | — |
| Supply Voltage-Min | — | 1.05 V | — | 2.7 V | — |
| Supply Voltage-Nom | — | 1.1 V | — | — | — |
| Technology | — | CMOS | BIPOLAR | — | BICMOS |
| Temperature Grade | — | COMMERCIAL | COMMERCIAL | — | AUTOMOTIVE |
| Terminal Pitch | — | 0.8 mm | 1.27 mm | — | 0.5 mm |
| Time@Peak Reflow Temperature-Max (s) | — | 30 | NOT SPECIFIED | — | 30 |
| uPs/uCs/Peripheral ICs Type | — | DSP PERIPHERAL, FLOATING POINT PROCESSOR | — | — | — |
| Analog IC - Other Type | — | — | SWITCHING CONTROLLER | — | INTEGRATED POWER MANAGEMENT UNIT |
| Control Mode | — | — | CURRENT-MODE | — | — |
| Control Technique | — | — | PULSE WIDTH MODULATION | — | — |
| Input Voltage-Max | — | — | 28 V | — | 36 V |
| Input Voltage-Min | — | — | 8.2 V | — | 4 V |
| Input Voltage-Nom | — | — | 15 V | — | — |
| Number of Functions | — | — | 1 | — | 1 |
| Output Current-Max | — | — | 1 A | — | 3.1 A |
| Output Voltage-Max | — | — | 5.1 V | 4 V | 5 V |
| Output Voltage-Min | — | — | 4.9 V | 0.3 V | 1.2 V |
| Output Voltage-Nom | — | — | 5 V | — | — |
| Supply Current-Max (Isup) | — | — | 25 mA | — | — |
| Supply Voltage-Max (Vsup) | — | — | 28 V | — | 36 V |
| Supply Voltage-Min (Vsup) | — | — | 8.4 V | — | 4 V |
| Supply Voltage-Nom (Vsup) | — | — | 11 V | — | 13 V |
| Switcher Configuration | — | — | BUCK-BOOST | — | — |
| Switching Frequency-Max | — | — | 500 kHz | — | 2400 kHz |
| ## UC3843AD8G4 Alternates Showing results | — | — | Image | — | — |
| Factory Lead Time | — | — | — | 6 Weeks | — |
| Accuracy-Max (Cel) | — | — | — | 6 Cel | — |
| Body Breadth | — | — | — | 1.63 mm | — |
| Body Height | — | — | — | 1.1 mm | — |
| Body Length or Diameter | — | — | — | 2.95 mm | — |
| Housing | — | — | — | PLASTIC | — |
| Mounting Feature | — | — | — | SURFACE MOUNT | — |
| Operating Current-Max | — | — | — | 0.04 mA | — |
| Package Shape/Style | — | — | — | RECTANGULAR | — |
| Screening Level | — | — | — | TS 16949 | AEC-Q100 |
| Sensors/Transducers Type | — | — | — | TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SINGLE TRIP POINT | — |
| Termination Type | — | — | — | SOLDER | — |
| ## TC6502P085VCTTR Alternates Showing results | — | — | — | Image | — |
| Date Of Intro | — | — | — | — | 2020-03-31 |
| Adjustable Threshold | — | — | — | — | YES |
| Number of Channels | — | — | — | — | 3 |
| Number of Outputs | — | — | — | — | 3 |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
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Get one quote covering all 4 alternatives for IRF740 — response within 24 hours.
Quick Links
Why Look for Alternatives?
Finding alternatives for IRF740 is essential for supply chain resilience. Component shortages, long lead times, and end-of-life notices can disrupt production schedules. Having verified alternative parts ensures your designs remain manufacturable.
When evaluating IRF740 replacements, consider key parameters such as package compatibility, electrical specifications, and operating temperature range. Our engineering team can help verify pin-to-pin compatibility for your specific application.
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FAQ
What is equivalent to IRF740?
Known equivalents for IRF740 include ADSP-21584KBCZ-4A, UC3843AD8G4, TC6502P085VCTTR. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of IRF740?
In many cases, yes. Cross-manufacturer alternatives exist for most standard components. However, always verify pin compatibility, electrical specs, and package dimensions before substituting in production.
How do I verify IRF740 alternatives?
Compare the datasheet specifications including pinout, voltage ratings, timing parameters, and package dimensions. FindMyChip's engineering team can help with compatibility verification — submit an RFQ to get started.