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BSS138Q

N-Channel Logic Level Enhancement Mode Field Effect Transistor

The BSS138Q is a n-channel logic level enhancement mode field effect transistor from Infineon Technologies. View the full BSS138Q datasheet below including key specifications, electrical characteristics, absolute maximum ratings.

BSS138Q shares its datasheet with BSS138, whose page lists every part number it covers.

Official BSS138Q datasheet (PDF) — the source this page was extracted from.

Category

MOSFETs

BSS138Q Key Specifications

ParameterValue
Continuous Drain Current220mA (Ta)
Current - Continuous Drain(Id)220mA
Drain to Source Voltage50V
Drain-Source Voltage (Vdss)50 V
Drive Voltage (Max Rds On, Min Rds On)4.5V, 10V
FET TypeN-Channel
Gate Charge (Qg)2.4 nC @ 10 V
Gate Charge(Qg)2.4nC@25V
Gate Threshold Voltage (Vgs(th))1.5V
Input Capacitance (Ciss)27 pF @ 25 V
Input Capacitance(Ciss)27pF
Mounting TypeSurface Mount
Number1 N-channel
Operating Temperature-55°C ~ 155°C (TJ)
Operating Temperature --55℃~+150℃
Package / CaseTO-236-3, SC-59, SOT-23-3
PackagingReel
PackagingMouseReel
Pd - Power Dissipation360mW
Power Dissipation (Max)350mW (Ta)
Rds(on)3Ohm @ 500mA, 10V Ω
RDS(on)3.5Ω@10V
Reverse Transfer Capacitance (Crss@Vds)6pF
Standard Pack Qty3000
Standard Pack Qty3000
Supplier Device PackageSOT-23-3
Diode TechnologyMOSFET (Metal Oxide)
Vgs (Max)±20V
Gate Threshold Voltage1.6V @ 250µA

BSS138Q Overview

Part: BSS138 (also ordered as BSS138-G) — onsemi

Type: N-Channel Logic Level Enhancement Mode MOSFET

Description: 50 V, 0.22 A N-channel logic-level MOSFET with RDS(on) of 3.5 Ω max at VGS = 10 V, in a SOT-23-3 package.

Operating Conditions:

  • Supply voltage: not applicable (discrete MOSFET); VDS up to 50 V, VGS up to ±20 V
  • Operating temperature: -55 to +150 °C (operating and storage junction temperature range)
  • Continuous drain current: 0.22 A (TA = 25 °C, minimum pad)

Absolute Maximum Ratings:

  • Drain-source voltage (VDSS): 50 V
  • Gate-source voltage (VGSS): ±20 V
  • Continuous drain current (ID): 0.22 A; pulsed: 0.88 A
  • Power dissipation (PD): 0.36 W (derate 2.8 mW/°C above 25 °C)
  • Operating and storage junction temperature: -55 to +150 °C
  • Lead soldering temperature: 300 °C (1/16" from case, 10 s)

Key Specs:

  • BVDSS: 50 V min (VGS = 0 V, ID = 250 μA)
  • RDS(on): 0.7 Ω typ / 3.5 Ω max (VGS = 10 V, ID = 0.22 A); 1.0 Ω typ / 6.0 Ω max (VGS = 4.5 V, ID = 0.22 A)
  • VGS(th): 0.8 V min / 1.3 V typ / 1.5 V max (VDS = VGS, ID = 1 mA)
  • IDSS: 0.5 μA max (VDS = 50 V, VGS = 0 V); 100 nA max (VDS = 30 V, VGS = 0 V)
  • IGSS: ±100 nA max (VGS = ±20 V)
  • Ciss / Coss / Crss: 27 / 13 / 6 pF typ (VDS = 25 V, f = 1 MHz)
  • Total gate charge: 1.7 nC typ, 2.4 nC max (VDS = 25 V, ID = 0.22 A, VGS = 10 V)
  • Switching (VDD = 30 V, ID = 0.29 A, VGS = 10 V, RGEN = 6 Ω): td(on) 2.5 ns typ, tr 9 ns typ, td(off) 20 ns typ, tf 7 ns typ
  • Thermal resistance RθJA: 350 °C/W (minimum pad)
  • Body diode VSD: 0.8 V typ / 1.4 V max (IS = 0.44 A)

Features:

  • 0.22 A, 50 V
  • High-density cell design for extremely low RDS(on)
  • Rugged and reliable
  • Compact industry-standard SOT-23 surface mount package
  • Pb-free and halogen free
  • HBM Class 0A, MM Class M2

Applications:

  • Small servo motor control
  • Power MOSFET gate drivers
  • Low-voltage, low-current switching

Package:

  • SOT-23-3 (TO-236, Case 318), 2.90 × 1.30 × 1.00 mm, 3000 / tape and reel

BSS138Q Features

  • 0.22 A, 50 V
  • ♦ RDS(on) = 3.5 W @ VGS = 10 V
  • ♦ RDS(on) = 6.0 W @ VGS = 4.5 V
  • Rugged and Reliable
  • High Density Cell Design for Extremely Low RDS(on)
  • Compact Industry Standard SOT -23 Surface Mount Package
  • This Device is Pb -Free and Halogen Free
  • HBM Class 0A, MM Class M2 (Note 3)

SOT -23 -3 CASE 318 -08

BSS138Q Electrical Characteristics

SymbolParameterTest ConditionsMinTypMaxUnit
OFF CHARACTERISTICSOFF CHARACTERISTICSOFF CHARACTERISTICSOFF CHARACTERISTICSOFF CHARACTERISTICSOFF CHARACTERISTICSOFF CHARACTERISTICS
BV DSSDrain-Source Breakdown VoltageV GS = 0 V, I D = 250 m A50--V
D V GS(th) D T JBreakdown Voltage Temperature CoefficientI D = 250 μ A, Referenced to 25 ° C-72-mV/ ° C
I DSSZero Gate Voltage Drain CurrentV DS = 50 V, V GS = 0 V--0.5m A
I DSSV DS = 50 V, V GS = 0 V, T J = 125 ° C--5m A
I DSSV DS = 30 V, V GS = 0 V--100nA
I GSSGate-Body LeakageV GS = ± 20 V, V DS = 0 V--± 100nA
ON CHARACTERISTICSON CHARACTERISTICSON CHARACTERISTICSON CHARACTERISTICSON CHARACTERISTICSON CHARACTERISTICSON CHARACTERISTICS
V GS(th)Gate Threshold VoltageV DS = V GS , I D = 1 mA0.81.31.5V
D V GS(th) D T JGate Threshold Voltage Temperature CoefficientI D = 1 mA, Referenced to 25 ° C--2-mV/ ° C
R DS(on)Static Drain-Source On-ResistanceV GS = 10 V, I D = 0.22 A-0.73.5W
R DS(on)V GS = 4.5 V, I D = 0.22 A-1.06.0W
R DS(on)V GS = 10 V, I D = 0.22 A, T J = 125 ° C-1.15.8
I D(on)On-State Drain CurrentV GS = 10 V, V DS = 5 V0.2--A
g FSForward TransconductanceV DS = 10 V, I D = 0.22 A0.120.5-S
DYNAMIC CHARACTERISTICSDYNAMIC CHARACTERISTICSDYNAMIC CHARACTERISTICSDYNAMIC CHARACTERISTICSDYNAMIC CHARACTERISTICSDYNAMIC CHARACTERISTICSDYNAMIC CHARACTERISTICS
C issInput CapacitanceV DS = 25 V, V GS = 0 V, f = 1.0 MHz-27-pF
C ossOutput CapacitanceV DS = 25 V, V GS = 0 V, f = 1.0 MHz-13-pF
C rssReverse Transfer CapacitanceV DS = 25 V, V GS = 0 V, f = 1.0 MHz-6-pF
R GGate ResistanceV GS = 15 mV, f = 1.0 MHz-9-W

BSS138Q Absolute Maximum Ratings

SymbolParameterRatingsUnit
V DSSDrain - Source Voltage50V
V GSSGate - Source Voltage± 20V
I DDrain Current - Continuous (Note 1)0.22A
I DDrain Current - Pulsed (Note 1)0.88A
P DMaximum Power Dissipation (Note 1)0.36W
P DDerate Above 25 ° C2.8mW/ ° C
T J , T STGOperating and Storage Junction Temperature Range- 55 to +150° C
T LMaximum Lead Temperature for Soldering Purposes, 1/16' from Case for 10 s300° C

BSS138Q Thermal Information

SymbolParameterRatingsUnit
R q JAThermal Resistance, Junction - to - Ambient (Note 1)350° C/W

Other MOSFETs

  • 20N06D – onsemi, Power MOSFET
  • AO3400A – Alpha & Omega Semiconductor Inc., N-Channel MOSFET
  • 2N7002K – Diodes Incorporated, N-Channel Enhancement Mode MOSFET
  • AO3400 – Alpha & Omega Semiconductor Inc., N-Channel MOSFET
  • DMN2044UCB4-7 – Diodes Incorporated, N-Channel MOSFET
  • DMG3414U-7 – Diodes Incorporated, N-Channel Enhancement Mode MOSFET
  • STL110N10F7 – STMicroelectronics, N-channel Power MOSFET
  • 2N7002 – Nexperia, N-channel Trench MOSFET

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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