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BSS126

N-channel Depletion Mode MOSFET

The BSS126 is a n-channel depletion mode mosfet from Infineon Technologies. View the full BSS126 datasheet below including key specifications, pinout, absolute maximum ratings.

BSS126 shares its datasheet with BSS126H6327, whose page lists every part number it covers.

Official BSS126 datasheet (PDF) — the source this page was extracted from.

Category

MOSFETs

Package

SOT-23

BSS126 Key Specifications

ParameterValue
Power Dissipation0.50 W (TA=25 °C)
Gate-Source Voltage±20 V
Pulsed Drain Current0.085 A
Total Gate Charge Qg1.4 nC typ
Input Capacitance Ciss21 pF typ
Continuous Drain Current0.021 A (TA=25 °C)
Drain-Source Voltage (VDS)600 V
Gate Threshold Voltage VGS(Th)-2.7 V to -1.6 V (VDS=3 V, ID=8 μA)
Operating And Storage Temperature-55 °C to 150 °C
Minimum On-State Drain Current IDSS7 mA (VGS=0 V, VDS=25 V)
Thermal Resistance Junction-Ambient250 K/W (minimal footprint)
Drain-Source On-Resistance RDS(On) Max700 Ω (VGS=0 V, ID=3 mA)

BSS126 Overview

Part: BSS126

Type: N-channel Depletion Mode MOSFET

Description: N-channel depletion mode small-signal transistor with a 600 V drain-source breakdown voltage, 700 Ω maximum on-state resistance, and 21 mA continuous drain current at 25 °C.

Operating Conditions:

  • Gate-source voltage: ±20 V
  • Operating temperature: -55 to 150 °C
  • Continuous drain current: 21 mA (at T_A=25 °C)

Absolute Maximum Ratings:

  • Max gate source voltage: ±20 V
  • Max continuous current: 0.021 A (at T_A=25 °C)
  • Max junction/storage temperature: 150 °C

Key Specs:

  • Drain-source breakdown voltage (V_BR)DSS: 600 V (V_GS=-5 V, I_D=250 μA)
  • Gate threshold voltage (V_GS(th)): -2.7 V min, -2.0 V typ, -1.6 V max (V_DS=3 V, I_D=8 μA)
  • Drain-source cutoff current (I_D(off)): 0.1 μA max (V_DS=600 V, V_GS=-5 V, T_j=25 °C)
  • On-state drain current (I_DSS): 7 mA min (V_GS=0 V, V_DS=25 V)
  • Drain-source on-state resistance (R_DS(on)): 320 Ω typ, 700 Ω max (V_GS=0 V, I_D=3 mA)
  • Input capacitance (C_iss): 21 pF typ, 28 pF max (V_GS=-5 V, V_DS=25 V, f=1 MHz)
  • Turn-on delay time (t_d(on)): 6.1 ns typ, 9.2 ns max (V_DD=300 V, V_GS=-3…7 V, I_D=0.01 A, R_G=6 Ω)
  • Gate charge total (Q_g): 1.4 nC typ, 2.1 nC max (V_DD=400 V, I_D=10 mA, V_GS=-3 to 5 V)

Features:

  • N-channel
  • Depletion mode
  • dv/dt rated
  • Available with V_GS(th) indicator on reel
  • Pb-free lead plating; RoHS compliant
  • Qualified according to AEC Q101
  • Halogen-free according to IEC61249-2-21

Applications:

Package:

  • PG-SOT-23

BSS126 Features

  • N-channel
  • Depletion mode
  • d v /d t rated
  • Available with V GS(th) indicator on reel
  • Pb-free lead plating; RoHS compliant
  • Qualified according to AEC Q101
  • Halogen-free according to IEC61249-2-21
TypePackagePb-freeTape and Reel InformationMarking
BSS126 BSS126PG-SOT-23 PG-SOT-23Yes YesH6327: 3000 pcs/reel H6327: 3000 pcs/reelSHs SHs
BSS126 BSS126PG-SOT-23 PG-SOT-23Yes YesH6906: 3000 pcs/reel sorted in V GS(th) bands 1) H6906: 3000 pcs/reel sorted in V GS(th) bands 1)SHs SHs

BSS126 Pin Configuration

BSS126 Pinout — PG-SOT-23 Package

Pin NumberPin NameTypeDescription
1GateIGate terminal
2SourceSSource terminal
3DrainODrain terminal

Notes

  • Package: PG-SOT-23 (3-pin small-signal transistor package)
  • Device Type: N-channel depletion-mode MOSFET with integrated reverse diode
  • Pin identification: Confirmed from package outline diagram showing pin 1 (gate), pin 2 (source), and pin 3 (drain)

BSS126 Absolute Maximum Ratings

ParameterSymbolConditionsValueUnit
Continuous drain currentI DT A =25 °C
T A =70 °C
0.021
0.017
A
Pulsed drain currentI D,pulseT A =25 °C0.085
Reverse diode d v /d td v /d tI D =0.016 A, V DS =20 V, d i /d t =200 A/μs, T j,max =150 °C6kV/μs
Gate source voltageV GS±20V
ESD sensitivity (HBM) as per JESD22-A114Class 0 (0 >250 V)
Power dissipationP totT A =25 °C0.50W
Operating and storage temperatureT j , T stg-55 ... 150°C
IEC climatic category; DIN IEC 68-155/150/56

BSS126 Package Information

Variants on the same datasheet

These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.

Part NumberManufacturerPackage
BSS126H6327Infineon TechnologiesPG-SOT-23

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All MOSFETs datasheetsAll Infineon Technologies datasheets (140)

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

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