STP80NF55-06AU - 55V 80A Low-RDS(on) MOSFET | STMicroelectronics
MPN: STP80NF55-06AU ✓ NakahandaSTP80NF55-06AU Ulas
A power MOSFET is a voltage-controlled semiconductor switch used in the power-conversion hierarchy: MOSFET, discrete semiconductor, power transistor, and power-management device. Unlike a mechanical relay, it can switch current rapidly with a small gate-drive requirement, while its low RDS(on) helps reduce conduction loss in motor, converter, and load-control circuits. The N-channel architecture makes the drain the higher-potential side in common low-side switching arrangements.
Key verified characteristics include a 55 V N-channel rating, 80 A current rating at Tc, approximately 5 mOhm to 6.5 mOhm RDS(on), and a 300 W power rating at Tc. The TO-220 package supports through-hole mounting and is suitable for PCB designs requiring a conventional three-lead power transistor footprint. The product family is identified as STripFET II and is developed with STMicroelectronics' Single Feature Size strip-based process, which is intended to improve packing density and manufacturing reproducibility.
STP80NF55-06AU is appropriate for DC motor drivers, power converters, switching power supplies, solenoid drivers, relay drivers, and other high-current 55 V systems where the selected device's SOA, thermal limits, switching behavior, and gate-drive requirements are validated. The verified sources do not provide a complete electrical table, absolute maximum ratings, gate threshold values, switching times, thermal resistance, or price tiers for the AU suffix, so those values are not inferred here.
A key design consideration is that the listed 80 A rating is a case-temperature-dependent device rating and must not be treated as unrestricted PCB current capability. Check the manufacturer datasheet for transient SOA, junction-temperature limits, gate charge, body-diode behavior, and recommended mounting conditions. For a new design, use the exact STMicroelectronics ordering code and datasheet revision associated with STP80NF55-06AU rather than assuming that every STP80NF55-06 package variant is electrically and mechanically identical.
This page consolidates verified manufacturer and distributor information, package facts, cross-reference candidates, and design-oriented cautions. It distinguishes documented data from missing parameters and avoids treating generic alternatives as guaranteed drop-in replacements unless the same package and pin compatibility are established.
Mga alternatibo na pwedeng ilagay na STP80NF55-06AU — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
SUP75N05-06
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
AP98T06GP-HF
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
SPP80N06S207NK
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
SUP75N05-06-E3
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
STB80NF55-06-1
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
STP80NF55-06
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
STP80NF55-06AU Mga Pinakamataas na Rating at Electrical Characteristics
| Uri ng Transistor | N-channel power MOSFET |
| Drain-Source Voltage | 55 V |
| Continuous Drain Current | 80 A at Tc |
| On-Resistance | 0.005 ohm to 0.0065 ohm, source-dependent |
| Power Dissipation | 300 W at Tc |
| Packhaging | TO-220 through-hole package |
| Uri ng Pagpapasok | Through hole |
| Technology Family | STripFET II Power MOSFET |
| Process | Single Feature Size strip-based process |
| Channel Type | N-channel |
| Polarity | N-channel power switch |
Pin Configuration ng STP80NF55-06AU
| Pin 1 | GATE — Gate input; exact numbering must be confirmed against the STP80NF55-06AU datasheet |
| Pin 2 | DRAIN — Drain terminal; exact numbering must be confirmed against the STP80NF55-06AU datasheet |
| Pin 3 | SOURCE — Source terminal and tab connection; exact numbering must be confirmed against the STP80NF55-06AU datasheet |
Ligtas na Operating Area
Tipikal na mga Gamit
STP80NF55-06AU ay nararapat para sa 6 aplikasyons: DC Motor Driver, 55 V Power Converter, Solenoid and Relay Driver, Switching Power Supply, Battery Discharge Switch, Industrial Load Control.
DC Motor Driver
STP80NF55-06AU fits low-side DC motor switching where the 55 V N-channel MOSFET can conduct high current with approximately 0.005 ohm to 0.0065 ohm RDS(on). The TO-220 package provides a conventional through-hole footprint for a robust power stage. Use the exact datasheet to confirm SOA, avalanche capability, gate charge, and switching losses against motor current, bus voltage, duty cycle, and thermal conditions.
Inirekomenda
55 V Power Converter
The STP80NF55-06AU can serve as the main switching device in a 55 V converter when its low RDS(on) helps reduce conduction loss. The verified 80 A rating is specified at Tc, so the converter must include proper heatsinking, current derating, and gate-drive design. Verify the exact datasheet for duty-cycle limits, SOA, switching energy, and thermal resistance before selecting it for a specific topology.
Inirekomenda
Solenoid and Relay Driver
For 12 V to 55 V solenoid or relay loads, the STP80NF55-06AU offers a low-resistance N-channel switching path in a TO-220 package. Its suitability depends on load current, flyback energy, switching speed, and the available gate-driver supply. Add an appropriate freewheel path and verify avalanche or transient ratings in the manufacturer datasheet rather than relying only on the nominal 80 A current figure.
Inirekomenda
Switching Power Supply
STP80NF55-06AU may be evaluated for low-side synchronous or hard-switched power-supply stages operating below 55 V. Its approximately 5 mOhm to 6.5 mOhm RDS(on) can lower conduction loss, but total loss also includes switching loss and gate-drive energy. Validate the device against transformer or inductor requirements, dead time, current ripple, SOA, and the thermal design of the TO-220 assembly.
Inirekomenda
Battery Discharge Switch
A 55 V battery or industrial bus discharge path can use STP80NF55-06AU when the switch must handle high current and minimize conduction loss. The N-channel topology is normally convenient for low-side switching, while the gate driver must maintain sufficient VGS during transient operation. Confirm reverse-battery behavior, short-circuit withstand, SOA, and thermal performance for the actual battery chemistry and wiring inductance.
Inirekomenda
Industrial Load Control
The STP80NF55-06AU is suitable for industrial load-control circuits where a 55 V bus and high-current switching device are required. Its through-hole TO-220 package supports conventional mounting and repair workflows, while low RDS(on) can reduce resistive loss. Designers should still validate creepage, clearance, transient immunity, enclosure temperature, and the manufacturer's complete electrical ratings for the exact AU suffix.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for STP80NF55-06AU — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | SUP75N05-06 | AP98T06GP-HF | SPP80N06S207NK | SUP75N05-06-E3 | STB80NF55-06-1 |
|---|---|---|---|---|---|---|
| Package | TO-220 through hole | TO-220 claimed for comparison; exact mechanical confirmation required | TO-220 claimed for comparison; exact mechanical confirmation required | TO-220 claimed for comparison; exact mechanical confirmation required | TO-220 claimed for comparison; exact mechanical confirmation required | Related package must be confirmed from the exact family datasheet |
| Brand | STMicroelectronics | Vishay Intertechnology | Diodes Incorporated | Infineon Technologies | Vishay Intertechnology | STMicroelectronics |
Pangunahing mga Pagkakaiba
- Verified STMicroelectronics STripFET II identity (kumpara saSPP80N06S207NK)
- 80 A rating at Tc (kumpara saSTB80NF55-06-1)
- TO-220 through-hole format (kumpara saSTP80NF55-06FP)
Talaan ng Disenyo
Treat the verified 80 A rating at Tc and 300 W power rating at Tc as device-level limits, not guaranteed continuous PCB ratings. Estimate conduction loss as I² × RDS(on) using the selected operating temperature and datasheet test condition, then add switching and gate-drive loss. Use the exact STP80NF55-06AU thermal data and a heat-sink calculation before production; the supplied data does not include thermal resistance or SOA points.
Do not substitute a TO-220FP or other package variant solely because the current and voltage ratings look similar. TO-220FP, TO-220, and other suffix packages can differ in thermal resistance, isolation, lead geometry, and pin arrangement. Confirm the exact ordering code, package drawing, tab connection, and pin mapping against the manufacturer datasheet before fitting a replacement.
Place the power loop as short and wide as practical, use a low-inductance gate-drive path, and provide local gate-loop and power-loop copper. Keep high-current switching traces away from sensitive signal traces and provide a defined thermal path through the TO-220 tab or lead arrangement specified by the datasheet. Validate gate-drive voltage, dead time, and transient protection against the actual converter or motor circuit.
Impormasyon ng Pagsunod sa Kautusan
The supplied verified results identify the device and its electrical/package basics but do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. A GlobalSpec result states that the related STP80NF55-06 entry is halogen-free, but that statement was not adopted as the exact STP80NF55-06AU compliance value without suffix-specific manufacturer confirmation.
