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Infineon Technologies BSS138W E6327 — Discrete Semiconductors

Infineon BSS138W E6327 N-Channel MOSFET, 60V 280mA SC-70

MPNBSS138W E6327
Obsolete

Infineon SIPMOS® BSS138W E6327, N-Channel MOSFET, 60 V Vdss, 280 mA Id, 3.5 Ohm Rds(on) @ 220 mA 10 V, SC-70 SOT-323, -55°C to 150°C.

$0.3500Ref. price · indicative, final on quote
Infineon Technologies BSS138W E6327 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

BSS138W E6327 specifications
ParameterValue
SeriesSIPMOS®
FET typeN-Channel
MountingSurface Mount
Drain to source voltage60 V
Drive voltage (Max rds on, min rds on)4.5V, 10V
Current - continuous drain (Id) @ 25°C280mA (Ta)
Power dissipation500mW (Ta)
Operating temperature-55°C ~ 150°C (TJ)
PackageTape & Reel (TR)
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseSC-70, SOT-323
Vgs(th) (Max) @ id1.4V @ 26µA
Rds on (Max) @ id, vgs3.5Ohm @ 220mA, 10V
Gate charge (Qg) (Max) @ vgs1.5 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds43 pF @ 25 V

Product details

The BSS138W E6327: The Infineon BSS138W is an N-channel enhancement-mode MOSFET from the SIPMOS® family, built with a standard metal-oxide semiconductor process. The part comes in a compact SC-70 / SOT-323 surface-mount package (PG-SOT323), making it suitable for low-power load switching, level shifting, and signal gating on space-constrained boards.

Gate threshold voltage is 1.4 V maximum at 26 µA, so a 3.3 V logic signal can turn it on — but the drive voltage table lists 4.5 V and 10 V for the rated on-resistance, meaning a 3.3 V gate drive will not achieve the headline Rds(on) figure. The 500 mW power dissipation (at 25°C ambient) is the package limit — in a 85°C ambient, derate to roughly 300 mW.

Lifecycle status — obsolete, sourced through independent distribution

Infineon lists the BSS138W as Obsolete. No last-time-buy window or successor part number is published in the available records. There is no factory lead time to manage; the supply is what the open market holds.

Frequently asked questions

What replaces Infineon BSS138W E6327?

A functionally equivalent replacement must match the 60 V Vdss, 280 mA Id, 3.5 Ohm Rds(on), and SC-70/SOT-323 footprint. The closest pin-compatible alternative in the same family is the standard BSS138 in the same package — check its Rds(on) and gate threshold to confirm fit for your load current and drive voltage.

What is the difference between BSS138W and BSS138?

The BSS138W is a variant of the standard BSS138, typically offered in a different package or with a specific tape-and-reel configuration. Both are N-channel small-signal MOSFETs with similar 60 V / 280 mA ratings. The 'W' suffix often denotes a wider-body package or a specific lead finish. For the BSS138W E6327, the package is SC-70/SOT-323 (PG-SOT323). The standard BSS138 is commonly available in SOT-23. The pinout differs between the two packages, so they are not drop-in replacements without a board layout change.