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Infineon Technologies BSP135L6906
Infineon Technologies

Infineon BSP135L6906 SIPMOS N-Ch Depletion MOSFET, 600 V

MPNBSP135L6906
End of Life

Infineon SIPMOS N-Channel Depletion MOSFET, BSP135L6906, 600 V Vdss, 120 mA Id, 45 Ohm Rds(on) at 10 V, PG-SOT223-4 surface mount, -55 to 150 °C.

$0.87Ref. price · indicative, final on quote
BSP135L6906 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

BSP135L6906 Technical Specifications
ParameterValue
SeriesSIPMOS®
FET typeN-Channel
Mounting typeSurface Mount
Drain to source voltage600 V
Drive voltage (Max rds on, min rds on)0V, 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)
FET featureDepletion Mode
CaseTO-261-4, TO-261AA
Vgs(th) (Max) @ id1V @ 94µA
Rds on (Max) @ id, vgs45Ohm @ 120mA, 10V
Gate charge (Qg) (Max) @ vgs4.9 nC @ 5 V
Input capacitance (Ciss) (Max) @ vds146 pF @ 25 V

Product details

600 V depletion-mode MOSFET in a SOT-223 footprint

Depletion-mode means the device is normally on at zero gate-source voltage — it conducts until a negative Vgs pinches it off.

Rds(on) and current — sizing the load

The 120 mA continuous drain rating at 25 °C ambient sets the practical load ceiling; at elevated temperatures derating applies. For a 600 V device, the Rds(on) is comparatively high — this part is sized for low-power auxiliary rails, bleeder circuits, or linear current regulation rather than high-efficiency switching.

Depletion-mode design-in — the normally-on reality

Because the BSP135L6906 is a depletion-mode MOSFET, the gate must be driven below the source to turn the device off. The maximum gate-source voltage is ±20 V, and the threshold voltage is 1 V at 94 µA — meaning the device is fully on at zero Vgs and begins to pinch off as the gate is pulled negative. This characteristic is essential for circuits that must start up without an auxiliary bias rail, such as the start-up transistor in a flyback converter's self-biased controller.

For a BOM line this means no supply-risk flag and no urgency to qualify a replacement. The part is ROHS3 compliant.

Frequently asked questions

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Is BSP135L6906 in stock?

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What is a replacement for BSP135L6906?

When the part is unavailable or obsolete, engineers and buyers need a drop-in equivalent to avoid redesign.

What is the lifecycle status of BSP135L6906?

Brokers and procurement teams must know if the part is active or end-of-life to plan alternate sourcing.