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BC817-40W,115-CN AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

BC817-40W,115-CN product

BC817-40W,115-CN

Component

NPN transistorSOT-32345 V500 mAhFE 250 to 600

BC817-40W,115-CN is a 3-pin SOT-323 NPN transistor with 45 V VCEO, 500 mA continuous collector-current rating, and hFE classification of 250 to 600.

Best for

  • General AF transistor stages
  • Low-power switching within the stated voltage and current limits
  • Compact SOT-323 designs

Avoid if

  • Compliance documentation such as RoHS or REACH is mandatory and cannot be separately verified
  • The design requires collector dissipation above 200 mW
  • A guaranteed high-current gain at 500 mA is required

Check before use

  • Confirm the SOT-323 pinout: base pin 1, emitter pin 2, collector pin 3
  • At 500 mA, use sufficient base drive; VCE(sat) is specified up to 0.70 V at IB = 50 mA
  • Review PCB thermal conditions against the 625 °C/W junction-to-ambient thermal resistance

Key specifications

Transistor polarity
NPN
Collector-emitter voltage
45 V
Continuous collector current
500 mA
DC current gain rank
250 to 600
Package
SOT-323, 3 pins

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

General AF circuitsCompact low-power switching

Datasheet

C42458976.pdf

800 KB

Datasheet AI

CAD Models

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PCB Footprint
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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

BC817-40W,115-CN is a ChipNobo NPN bipolar transistor supplied in a SOT-323 plastic surface-mount package. Pin 1 is base, pin 2 is emitter, and pin 3 is collector.