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BSP129
  • BSP129

BSP129

Active and preferred

Infineon is one of the few semiconductor manufacturers worldwide to offer depletion MOSFETs.Areas of application include power supply startup power, over-voltage protection, in-rush-current limiter, off-line voltage reference. With one single component it is possible to realize a simple current regulator. All products are suitable for automotive applications. In order to meet special requirements, depletion MOSFETs are available with V GS(th) indicator on the reel.

Infineon Technologies BSP129 Product Info

16 April 2026 1

Parameters

Budgetary Price €/1k

0.19

Ciss

82 pF

Coss

12 pF

ID (@25°C) max

0.35 A

IDpuls max

1.4 A

Mode

Depletion

Mounting

SMD

Operating Temperature range

-55 °C to 150 °C

Package

SOT-223

Pin Count

4 Pins

Polarity

N

Ptot max

1.8 W

QG (typ @4.5V)

3.8 nC

RDS (on) (@0V)

20000 mΩ

RDS (on) (@10V) max

6000 mΩ

RthJC max

70 K/W

Special Features

Depletion mode

VDS max

240 V

VGS(th) range

-2.1 V to -1 V

VGS(th)

-1.4 V

Apps

Light electric vehicle solutions, Home and building automation

Features

  • Depletion mode
  • dv/dt rated
  • Available w/ V GS(th) indicator on reel
  • Halogen free
  • Pb-free lead plating; RoHS compliant
  • Qualified according to AEC Q101

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