STN3N40K3Alternatives & Equivalent Parts
About STN3N40K3
STN3N40K3 is a MOSFET (N-Channel) component manufactured by STMicroelectronics. It comes in a SOT223 (3-Pin) 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 | STN3N40K3Source | STN4NF03L | 760390015 | 826632-9 | CD4020BE | STM8S005C6T6 | 101020011 |
|---|---|---|---|---|---|---|---|
| Manufacturer | STMicroelectronics | STMicroelectronics | Würth Elektronik | TE Connectivity | Texas Instruments | STMicroelectronics | Seeed Studio |
| Package Type | SOT223 (3-Pin) | SOT223 (3-Pin) | Other | Header, Vertical | — | Quad Flat Packages | Header, Vertical |
| Pin Count | 3 | 4 | 6 | 18 | — | 48 | 4 |
| Temperature Range | ~ 150.0°C | ~ 150.0°C | -40.0°C ~ 125.0°C | -65.0°C ~ 105.0°C | — | -40.0°C ~ 85.0°C | — |
| Price | $0.1832 | $0.2121 | $0.6242 | $1.3100 | $0.3421 | $0.9301 | $5.6300 |
| Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock | In Stock |
| Lifecycle | ACTIVE | ACTIVE | ACTIVE | ACTIVE | — | ACTIVE | — |
| Electrical Parameters | |||||||
| Factory Lead Time | 13 Weeks | — | — | 22 Weeks, 6 Days | — | 10 Weeks | — |
| YTEOL | 6.3 | 5.32 | 15 | 9.1 | — | 9 | — |
| Avalanche Energy Rating (Eas) | 45 mJ | 100 mJ | — | — | — | — | — |
| Case Connection | DRAIN | DRAIN | — | — | — | — | — |
| Configuration | SINGLE WITH BUILT-IN DIODE | SINGLE WITH BUILT-IN DIODE | — | — | — | — | — |
| DS Breakdown Voltage-Min | 400 V | 30 V | — | — | — | — | — |
| Drain Current-Max (ID) | 3 A | 6.5 A | — | — | — | — | — |
| Drain-source On Resistance-Max | 3.3 Ω | 0.06 Ω | — | — | — | — | — |
| FET Technology | METAL-OXIDE SEMICONDUCTOR | METAL-OXIDE SEMICONDUCTOR | — | — | — | — | — |
| JESD-30 Code | R-PDSO-G3 | R-PDSO-G4 | — | — | — | S-PQFP-G48 | — |
| JESD-609 Code | e3 | e3 | e2 | — | — | e3 | — |
| Number of Elements | 1 | 1 | — | — | — | — | — |
| Operating Mode | ENHANCEMENT MODE | ENHANCEMENT MODE | — | — | — | — | — |
| Package Body Material | PLASTIC/EPOXY | PLASTIC/EPOXY | — | — | — | PLASTIC/EPOXY | — |
| Package Shape | RECTANGULAR | RECTANGULAR | — | — | — | SQUARE | — |
| Package Style | SMALL OUTLINE | SMALL OUTLINE | — | — | — | FLATPACK, LOW PROFILE, FINE PITCH | — |
| Peak Reflow Temperature (Cel) | 260 | — | — | — | — | 260 | — |
| Polarity/Channel Type | N-CHANNEL | N-CHANNEL | — | — | — | — | — |
| Power Dissipation-Max (Abs) | 3.3 W | 2.5 W | — | — | — | — | — |
| Pulsed Drain Current-Max (IDM) | 12 A | 26 A | — | — | — | — | — |
| Qualification Status | Not Qualified | Not Qualified | — | — | — | — | — |
| Surface Mount | YES | YES | YES | — | — | YES | — |
| Terminal Finish | Matte Tin (Sn) | Matte Tin (Sn) - annealed | Tin/Silver (Sn96Ag4) | — | — | Matte Tin (Sn) | — |
| Terminal Form | GULL WING | GULL WING | — | — | — | GULL WING | — |
| Terminal Position | DUAL | DUAL | — | — | — | QUAD | — |
| Time@Peak Reflow Temperature-Max (s) | 30 | — | — | — | — | NOT SPECIFIED | — |
| Transistor Application | SWITCHING | SWITCHING | — | — | — | — | — |
| Transistor Element Material | SILICON | SILICON | — | — | — | — | — |
| Additional Feature | — | LOW THRESHOLD | — | AMPMODU | — | — | — |
| ## STN4NF03L Alternates Showing results | — | Image | — | — | — | — | — |
| Approvals | — | — | AEC-Q200; CUL; UL | — | — | — | — |
| Height | — | — | 4.19 mm | — | — | — | — |
| Input Voltage-Nom | — | — | 3.3 V | — | — | — | — |
| Mounting Feature | — | — | SURFACE MOUNT | — | — | — | — |
| Number of Primary Winding | — | — | 1 | — | — | — | — |
| Number of Secondary Winding | — | — | 1 | — | — | — | — |
| Operating Frequency-Max | — | — | 550 kHz | — | — | — | — |
| Operating Frequency-Min | — | — | 250 kHz | — | — | — | — |
| Output Voltage 1 | — | — | 5 V | — | — | — | — |
| Packing Method | — | — | TR, EMBOSSED PLASTIC, 13 INCH | — | — | — | — |
| Primary Inductance | — | — | 475 µH | — | — | — | — |
| Transformer Type | — | — | SMPS TRANSFORMER | — | — | — | — |
| Pbfree Code | — | — | — | Yes | — | — | — |
| Body Breadth | — | — | — | 0.197 inch | — | — | — |
| Body Depth | — | — | — | 0.11 inch | — | — | — |
| Body Length | — | — | — | 0.9 inch | — | — | — |
| Body/Shell Style | — | — | — | RECEPTACLE | — | — | — |
| Connector Type | — | — | — | BOARD CONNECTOR | — | — | — |
| Contact Finish Mating | — | — | — | NOT APPLICABLE | — | — | — |
| Contact Gender | — | — | — | MALE | — | — | — |
| Contact Material | — | — | — | NOT APPLICABLE | — | — | — |
| Contact Pattern | — | — | — | RECTANGULAR | — | — | — |
| Contact Resistance | — | — | — | 20 mΩ | — | — | — |
| Contact Style | — | — | — | SQ PIN-SKT | — | — | — |
| DIN Conformance | — | — | — | NO | — | — | — |
| Durability | — | — | — | 150 Cycles | — | — | — |
| EMI Shielded | — | — | — | NO | — | — | — |
| Empty Shell | — | — | — | NO | — | — | — |
| Filter Feature | — | — | — | NO | — | — | — |
| IEC Conformance | — | — | — | NO | — | — | — |
| Insulation Resistance | — | — | — | 5000000000 Ω | — | — | — |
| Insulator Color | — | — | — | GREEN | — | — | — |
| Insulator Material | — | — | — | POLYBUTYLENE TEREPHTHALATE | — | — | — |
| MIL Conformance | — | — | — | NO | — | — | — |
| Mains Connector Rating | — | — | — | 5A | — | — | — |
| Mating Contact Pitch | — | — | — | 0.1 inch | — | — | — |
| Mating Contact Row Spacing | — | — | — | 0.1 inch | — | — | — |
| Mixed Contacts | — | — | — | NO | — | — | — |
| Mounting Style | — | — | — | STRAIGHT | — | — | — |
| Mounting Type | — | — | — | BOARD | — | — | — |
| Number Of Connectors | — | — | — | ONE | — | — | — |
| Number Of PCB Rows | — | — | — | 2 | — | — | — |
| Number of Ports | — | — | — | 1 | — | — | — |
| Number of Rows Loaded | — | — | — | 2 | — | — | — |
| Option | — | — | — | GENERAL PURPOSE | — | — | — |
| PCB Contact Pattern | — | — | — | RECTANGULAR | — | — | — |
| PCB Contact Row Spacing | — | — | — | 2.54 mm | — | — | — |
| Panel Mount | — | — | — | NO | — | — | — |
| Plating Thickness | — | — | — | 31.5u inch | — | — | — |
| Rated Current (Signal) | — | — | — | 5 A | — | — | — |
| Reference Standard | — | — | — | UL | — | — | — |
| Terminal Length | — | — | — | 0.126 inch | — | — | — |
| Terminal Pitch | — | — | — | 2.54 mm | — | 0.5 mm | — |
| Termination Type | — | — | — | SOLDER | — | — | — |
| Total Number of Contacts | — | — | — | 18 | — | — | — |
| UL Flammability Code | — | — | — | 94V-0 | — | — | — |
| Has ADC | — | — | — | — | — | YES | — |
| Bit Size | — | — | — | — | — | 8 | — |
| Boundary Scan | — | — | — | — | — | NO | — |
| CPU Family | — | — | — | — | — | STM8S | — |
| Clock Frequency-Max | — | — | — | — | — | 24 MHz | — |
| DAC Channels | — | — | — | — | — | NO | — |
| DMA Channels | — | — | — | — | — | NO | — |
| Format | — | — | — | — | — | FIXED POINT | — |
| Integrated Cache | — | — | — | — | — | NO | — |
| Low Power Mode | — | — | — | — | — | YES | — |
| Number of External Interrupts | — | — | — | — | — | 35 | — |
| Number of I/O Lines | — | — | — | — | — | 38 | — |
| On Chip Data RAM Width | — | — | — | — | — | 8 | — |
| On Chip Program ROM Width | — | — | — | — | — | 8 | — |
| PWM Channels | — | — | — | — | — | YES | — |
| Package Equivalence Code | — | — | — | — | — | QFP48,.35SQ,20 | — |
| RAM (bytes) | — | — | — | — | — | 2048 | — |
| RAM (words) | — | — | — | — | — | 2048 | — |
| ROM (words) | — | — | — | — | — | 32768 | — |
| ROM Programmability | — | — | — | — | — | FLASH | — |
| Speed | — | — | — | — | — | 16 MHz | — |
| Supply Current-Max | — | — | — | — | — | 60 mA | — |
| Supply Voltage-Max | — | — | — | — | — | 5.5 V | — |
| Supply Voltage-Min | — | — | — | — | — | 3.3 V | — |
| Supply Voltage-Nom | — | — | — | — | — | 3.3 V | — |
| Technology | — | — | — | — | — | CMOS | — |
| Temperature Grade | — | — | — | — | — | INDUSTRIAL | — |
| uPs/uCs/Peripheral ICs Type | — | — | — | — | — | MICROCONTROLLER | — |
Cells highlighted in yellow indicate differing values across parts. Always verify with official datasheets before substitution.
Need pricing on these alternatives?
Get one quote covering all 6 alternatives for STN3N40K3 — response within 24 hours.
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Why Look for Alternatives?
Finding alternatives for STN3N40K3 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 STN3N40K3 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 STN3N40K3?
Known equivalents for STN3N40K3 include STN4NF03L, 760390015, 826632-9. Contact FindMyChip for a full compatibility analysis for your specific application.
Can I use a different manufacturer's part instead of STN3N40K3?
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 STN3N40K3 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.