SMMBT3904LT1G-CN AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

SMMBT3904LT1G-CN product

SMMBT3904LT1G-CN

Transistors - Bipolar (BJT) - Single

NPNBJTSOT-2340 V200 mAAEC-Q101

SMMBT3904LT1G-CN is a 3-pin SOT-23 NPN transistor rated for 40 V VCEO, 200 mA continuous collector current, and 200 mW dissipation.

Best for

  • Low-power NPN switching
  • General-purpose amplification
  • Space-constrained SOT-23 designs

Avoid if

  • Applications exceeding 40 V VCEO
  • Applications requiring more than 200 mA continuous collector current
  • Designs needing guaranteed tight gain selection

Check before use

  • Confirm the base-emitter-collector pinout
  • Calculate junction temperature using the 625 °C/W junction-to-ambient thermal resistance
  • Validate gain and saturation performance at the actual operating point

Key specifications

Collector-emitter voltage
40 V
Continuous collector current
200 mA
Power dissipation
200 mW
DC gain at 10 mA
100 to 300
Package
SOT-23, 3 pins

Compliance & Environment

RoHS
RoHS compliant
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

General-purpose switchingLow-power control circuits

CAD Models

Download ECAD models for SMMBT3904LT1G-CN: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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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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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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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

SMMBT3904LT1G-CN is a ChipNobo NPN bipolar junction transistor in a SOT-23 surface-mount package. The datasheet identifies pin 1 as base, pin 2 as emitter, and pin 3 as collector.