PBSS4240T AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

PBSS4240T product

PBSS4240T

Component

NPN transistor40 V2 ASOT-23low VCE(sat)RoHS compliant

PBSS4240T is a 40 V, 2 A NPN SOT-23 transistor for low-loss switching and general-purpose amplification.

Best for

  • Low-side load switching
  • Battery-management switching
  • Small motor and lamp drivers
  • DC-DC converter support circuits

Avoid if

  • Collector-emitter voltage can exceed 40 V
  • The application cannot provide adequate base drive
  • Power dissipation exceeds SOT-23 thermal capability

Check before use

  • Confirm collector current and forced base-current ratio
  • Calculate conduction loss from VCE(sat)
  • Verify thermal derating on the target PCB
  • Confirm SOT-23 pin assignment: pin 1 base, pin 2 emitter, pin 3 collector

Key specifications

Polarity
NPN
Collector-emitter voltage
40 V
Collector current
2 A
Saturation voltage
320 mV max at 2 A, IB=200 mA
Package
SOT-23, 3 pins

Compliance & Environment

RoHS
Compliant
REACH
-
MSL
1
ECCN
-
HTSUS
-

Application

Motor and lamp driversSupply-line switchingBattery managementDC-DC converter circuits

CAD Models

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EDA Symbol
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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Where to Buy

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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

PBSS4240T is a Yangjie NPN general-purpose amplifier and switching transistor in a 3-pin SOT-23 package. Its maximum collector-emitter voltage is 40 V and its maximum collector current is 2 A.