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TPDTC143ZUA AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

TPDTC143ZUA product

TPDTC143ZUA

Pre-Biased

NPNdigital transistorpre-biased transistorSOT-32350 V100 mA4.7 kΩ

TPDTC143ZUA is a 3-pin NPN digital transistor with integrated bias resistors, intended for simple inverter and switching functions without external input resistors.

Best for

  • Compact logic-controlled low-side switching
  • Inverter circuits using an integrated bias network
  • Boards where external input bias resistors are undesirable

Avoid if

  • The application requires a different integrated resistor ratio
  • Output current exceeds 100 mA
  • Compliance or lifecycle documentation is mandatory but unavailable

Check before use

  • Confirm package pin assignment from the applicable assembly documentation
  • Validate VO(on) at the intended collector and input currents
  • Confirm operating temperature and thermal derating for the assembly

Key specifications

Device type
NPN pre-biased digital transistor
Maximum supply voltage
50 V
Maximum output current
100 mA
Integrated input resistor
4.7 kΩ typ
Resistor ratio
R2/R1 = 10 typ
Package
SOT-323, 3-pin

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Logic inverter stagesLow-side signal switchingCompact consumer control circuits

Datasheet

7ac71ea922902d5b96fa4da400b213f8_TPDTC143ZUA.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for TPDTC143ZUA: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
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PCB Footprint
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3D Model
STEP file for mechanical design
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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

TPDTC143ZUA is an NPN pre-biased digital transistor from TECH PUBLIC. It integrates an input resistor R1 and a base-to-emitter resistor R2 in a SOT-323 package, providing an inverting transistor-switch function.