VERIFIED CROSS-REFERENCE
IRF540N alternatives & equivalent parts
100V N-channel power MOSFET for switching, motor and relay drive. — common packages: TO-220. Each candidate below cites its manufacturer datasheet; check the relationship badge before substituting.
3 verified alternatives for IRF540N
| Alternative | Manufacturer | Relationship | Key differences | Source |
|---|---|---|---|---|
| IRF540NPBF | Infineon | Pin-to-pinDrop-in: same footprint and pinout. | Infineon's lead-free ordering code for the same IRF540N die - identical 100V/33A/44mOhm TO-220 ratings; the active recommended OPN on the official product page. | Infineon 官方页面 |
| IRL540NPBF | Infineon | Pin-to-pinDrop-in: same footprint and pinout. | Same TO-220 footprint and pin order but logic-level gate: RDS(on) 63mOhm max at VGS=4.5V; VGS absolute maximum is 16V versus 20V - verify the gate-drive circuit stays within limits. | Infineon 官方页面 |
| STP80NF10 | STMicroelectronics | Pin-to-pinDrop-in: same footprint and pinout. | ST 100V N-channel in TO-220 with 15mOhm max at 10V and 80A continuous - better conduction specs, same pin order; gate charge and switching behavior differ - revalidate the driver; third-party mirror of official datasheet. | 数据手册（第三方托管，购买前请核对原厂） |
Pre-replacement checklist
- Keep the TO-220 pin order (G-D-S) - verify the replacement's pinout against its datasheet.
- Confirm the 100V VDS margin and recalculate conduction and switching losses with the new RDS(on) and gate charge.
- For IRL540NPBF, make sure the gate-drive voltage never exceeds the 16V VGS maximum.
Need the exact lot, date code or a second source quoted?
Send the original MPN and the approved alternative. Sourceics reconfirms source, stock, date code and commercial terms before any order — no substitution without your engineering approval.
Request a quote for IRF540NSource part reference: Infineon 官方页面. Equivalence notes are reference guidance, not a guarantee of fit — always verify against your schematic and layout.