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STMicroelectronics STP80NF55L-06 — Discrete Semiconductors

STP80NF55L-06 N-Channel MOSFET, 55V 80A TO-220, Obsolete

MPNSTP80NF55L-06
Obsolete

STMicroelectronics STripFET™ II, STP80NF55L-06, N-Channel MOSFET, 55 V drain-source, 80 A continuous drain, 6.5 mOhm Rds(on) at 40 A, TO-220-3 through hole, -55°C to 175°C junction.

$2.0200Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STP80NF55L-06 specifications
ParameterValue
SeriesSTripFET™ II
FET typeN-Channel
MountingThrough Hole
Drain to source voltage55 V
Drive voltage (Max rds on, min rds on)5V, 10V
Current - continuous drain (Id) @ 25°C80A (Tc)
Power dissipation300W (Tc)
Operating temperature-55°C~175°C(TJ)
PackageTube
Vgs±16V
TechnologyMOSFET (Metal Oxide)
CaseTO-220-3
Vgs(th) (Max) @ id1V @ 250µA
Rds on (Max) @ id, vgs6.5mOhm @ 40A, 10V
Gate charge (Qg) (Max) @ vgs136 nC @ 5 V
Input capacitance (Ciss) (Max) @ vds4850 pF @ 25 V

Product details

Gate charge is 136 nC at 5 V, so the driver needs to source about 1.4 A peak to switch at 100 kHz; plan a gate resistor to manage ringing.

ST officially lists the STP80NF55L-06 as Obsolete. That means no further production runs, no last-time-buy window — the only channel left is independent distribution sourcing surplus or new-old-stock inventory. If this part is on a current BOM, qualify a replacement before stock runs dry. The TO-220 footprint is standard, so a pin-compatible N-channel MOSFET with similar Rds(on) and gate charge from ST's current STripFET F7 or other vendors' 55 V / 80 A families should drop in with minimal layout change.

The 175°C max gives headroom for derating under continuous high-current operation.

Frequently asked questions

What is the replacement for STP80NF55L-06?

ST does not provide a direct successor order code in the available records. A pin-compatible replacement should be selected from current 55 V / 80 A N-channel MOSFET families in TO-220 — for example, ST's STripFET F7 series or equivalent offerings from Infineon, ON Semiconductor, or Vishay. Verify Rds(on), gate charge, and thermal specs against the design.

What is the Rds(on) of STP80NF55L-06?

The drive voltage range for achieving minimum Rds(on) is 5 V to 10 V.