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Infineon Technologies BSS123NH6327XTSA1 — Discrete Semiconductors

Infineon BSS123NH6327XTSA1 N-Ch MOSFET, 100V, 190mA, SOT-23

MPNBSS123NH6327XTSA1
Active

Infineon OptiMOS™ N-Channel MOSFET, BSS123NH6327XTSA1, 100 V Vdss, 190 mA Id, 6 Ohm Rds(on) at 10 V, SOT-23-3 package, surface mount.

$0.4100Ref. price · indicative, final on quote
Infineon Technologies BSS123NH6327XTSA1 datasheet (PDF)
PackagingTO-236-3, SC-59, SOT-23-3
RoHSROHS3 Compliant
SeriesOptiMOS™
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

BSS123NH6327XTSA1 specifications
ParameterValue
SeriesOptiMOS™
FET typeN-Channel
MountingSurface Mount
Drain to source voltage100 V
Drive voltage (Max rds on, min rds on)4.5V, 10V
Current - continuous drain (Id) @ 25°C190mA (Ta)
Power dissipation500mW (Ta)
Operating temperature-55°C ~ 150°C (TJ)
PackageTape & Reel (TR) Cut Tape (CT)
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-236-3, SC-59, SOT-23-3
Vgs(th) (Max) @ id1.8V @ 13µA
Rds on (Max) @ id, vgs6Ohm @ 190mA, 10V
Gate charge (Qg) (Max) @ vgs0.9 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds20.9 pF @ 25 V

Product details

100 V small-signal switch in a hand-solderable SOT-23

The BSS123NH6327XTSA1: The 0.9 nC gate charge means a microcontroller GPIO can switch it directly without a dedicated gate driver — handy for a quick breadboard or a dense PCB.

Package and footprint — SOT-23 that plays nice with tweezers

Housed in a standard SOT-23-3 package (Infineon calls it PG-SOT23), the three leads are on a 0.95 mm pitch — easy to hand-solder with a fine-tip iron or hot air. The footprint matches countless other small-signal MOSFETs and transistors, so swapping in a different part for prototyping is straightforward. Maximum power dissipation is 500 mW at 25°C ambient — keep the load current and duty cycle within that thermal budget, especially in a cramped layout.

Infineon lists this part as Active. ROHS3 compliant means it meets the latest EU restriction on hazardous substances, no exemption expiry to track.

Frequently asked questions

What is the closest pin-compatible alternative to BSS123NH6327XTSA1?

The base product number BSS123 covers a family of small-signal N-channel MOSFETs in the same SOT-23 footprint. Many manufacturers offer pin-compatible parts with similar 100 V / 190 mA ratings — the BSS123 footprint is a de facto standard. For a direct Infineon alternative with the same package and voltage class, look at other BSS123-suffix variants; parametric differences (Rds(on), gate threshold) should be verified against your drive voltage and load current.