Skip to main content
Infineon Technologies BSP125L6327
Infineon Technologies

Infineon BSP125L6327 N-Channel MOSFET, 600 V, 120 mA

MPNBSP125L6327
End of Life

Infineon SIPMOS® N-Channel MOSFET, BSP125L6327, 600 V drain-source, 120 mA continuous drain, 45 Ohm Rds(on) at 10 V, PG-SOT223-4-21 surface-mount package, -55 to 150 °C junction temperature.

$0.31Ref. price · indicative, final on quote
BSP125L6327 datasheet
PackagingTO-261-4, TO-261AA
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

BSP125L6327 Technical Specifications
ParameterValue
SeriesSIPMOS®
FET typeN-Channel
Mounting typeSurface Mount
Drain to source voltage600 V
Drive voltage (Max rds on, min rds on)4.5V, 10V
Current - continuous drain (Id) @ 25°C120mA (Ta)
Power dissipation1.8W (Ta)
Operating temperature-55°C ~ 150°C (TJ)
PackageBulk
Vgs±20V
TechnologyMOSFET (Metal Oxide)
CaseTO-261-4, TO-261AA
Vgs(th) (Max) @ id2.3V @ 94µA
Rds on (Max) @ id, vgs45Ohm @ 120mA, 10V
Gate charge (Qg) (Max) @ vgs6.6 nC @ 10 V
Input capacitance (Ciss) (Max) @ vds150 pF @ 25 V

Product details

600 V N-Channel MOSFET for auxiliary and bias supplies

The Infineon BSP125L6327 is a 600 V N-Channel SIPMOS® power MOSFET in a PG-SOT223-4-21 surface-mount package. It delivers 120 mA continuous drain current with a maximum on-resistance of 45 Ohm at 10 V gate drive. The junction temperature range spans -55 to 150 °C, suiting it for off-line flyback auxiliary windings, high-voltage bias regulators, and discharge circuits in industrial power supplies.

Package and mounting

The PG-SOT223-4-21 is a four-lead surface-mount package with a large drain tab. The tab is the drain terminal — ensure the PCB copper area under the tab is sized for 1.8 W dissipation. Standard SOT223 footprint works; the tab can be soldered to a copper pour for thermal spreading. No through-hole or heatsink required at this power level.

Frequently asked questions

What is the Rds(on) of BSP125L6327?

The maximum on-resistance is 45 Ohm at 120 mA drain current with a 10 V gate drive.