Specs side by side
2 parts compared · 14 differing specs across 14 total parameters.
| Parameter | ||
|---|---|---|
| Supply voltage | - | Same 1200V bus class; what changes is gate appetite - about 15V on with negative off bias in welder duty. |
| Memory & Peripherals | - | The generation difference to respect: the FGA is a planar NPT part tuned for soft resonant switching; the H3 is a hard-switching trench design with faster edges and a different gate resistor appetite. |
| Case | TO-3P (EIAJ SC-65) / TO-247 | TO-247 |
| Compatibility Level | - | Pin-to-Pin (Minor Clock/Init Tuning) |
| Component Category | IGBTs (Discrete) | - |
| Core & Architecture | - | The modern Infineon generation: 1200V/25A with the co-packed fast diode, saturation voltage 2.4V max, a 175C junction rating and a 5 microsecond short-circuit window - the current-production answer where the FGA channel runs dry. |
| Firmware Notes | - | TO-3P and TO-247 are dimensionally and pin compatible (gate, collector, emitter, with the collector on the tab), so the swap physically fits - the gate resistor and di/dt behavior are what must be re-checked. |
| Hardware Notes | - | TO-247 body on a TO-3P land pattern: verify the clip and the 1200V creepage. |
| Lead Time Advantage | - | Shenzhen Spot Stock (24-48h Dispatch) |
| Market Reality | The 25N120 is the 1200V, 25A IGBT that anchors the power stage of welder inverters, induction heating boards and inverter supplies: a TO-3P body (the onsemi FGA25N120ANTD) or a TO-247 body (the Infineon IKW25N120), gate-collector-emitter in one shared order, a free-wheel diode co-packed, and a market full of mystery-grade 25N120 clones whose saturation voltage gives them away. The onsemi datasheet now carries a discontinued marking, which quietly moves this staple toward last-time-buy sourcing - and that is where verified, photographed stock becomes the difference between a repair and a comeback. | - |
| Reference Part | - | FGA25N120 |
| Role In Circuit | Original Reference Part | - |
| Sourcing Advantage | - | Current production; the mainstream repair-channel stock. |
| Sourcing Status | Active Shenzhen Spot Sourcing (24–48h) | - |
Parts
- FGA25N120 · onsemi
- IKW25N120H3 · infineon