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Infineon Technologies BSS138N E6908 — Discrete Semiconductors
Infineon Technologies

Infineon BSS138N E6908 N-Channel MOSFET, 60V, SOT-23

MPNBSS138N E6908
Obsolete

Infineon SIPMOS® series, N-Channel MOSFET, 60 V drain-source, 230 mA continuous drain current at 25°C, 3.5 Ohm on-resistance at 10 V gate drive, 1.4 nC gate charge, TO-236-3 / SOT-23-3 package, -55°C to 150°C junction temperature.

BSS138N E6908 datasheet
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Specifications

BSS138N E6908 Technical Specifications
ParameterValue
SeriesSIPMOS®
FET typeN-Channel
Mounting typeSurface Mount
Drain to source voltage60 V
Drive voltage (Max rds on, min rds on)4.5V, 10V
Current - continuous drain (Id) @ 25°C230mA (Ta)
Power dissipation360mW (Ta)
Operating temperature-55°C~150°C(TJ)
PackageTape & Reel (TR)
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-236-3, SC-59, SOT-23-3
Vgs(th) (Max) @ id1.4V @ 250µA
Rds on (Max) @ id, vgs3.5Ohm @ 230mA, 10V
Gate charge (Qg) (Max) @ vgs1.4 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds41 pF @ 25 V

Product details

The BSS138N E6908: 3.5 Ohm maximum on-resistance at 230 mA with 10 V gate drive defines conduction loss in low-current switching roles.

Gate threshold and switching parasitics

Maximum gate threshold voltage is 1.4 V at 250 µA drain current, which places it in logic-level territory.

Obsolete — sourcing and replacement reality

The BSS138N E6908 carries an official Obsolete lifecycle status. The generic BSS138 (without the N or E6908 suffix) is a functionally similar part in the same SOT-23 package, but pinout and threshold specifications should be verified against the target application before substitution.

Wide temperature range and package

The SOT-23-3 package (Infineon's PG-SOT23 supplier device package variant) is a three-lead surface-mount footprint compatible with standard reflow profiles. Maximum power dissipation is 360 mW at 25°C ambient — adequate for signal-level switching but not for continuous high-current operation without derating.

Frequently asked questions

What is the replacement for BSS138N E6908?

The generic Infineon BSS138 (without the N or E6908 suffix) is a functionally similar SOT-23 N-channel MOSFET, but pinout and threshold specifications must be cross-checked against the original design before substitution.