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RY2121 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

RY2121 product

RY2121

Power Distribution Switches

Power SwitchCurrent LimitSOT23-5

The RY2121 is a versatile, single-channel adjustable current-limited power distribution switch designed for 2.4V to 5.5V applications.

Best for

  • USB power distribution
  • Portable device power management
  • Set-top boxes

Avoid if

  • Applications requiring >2A current
  • High-voltage systems (>5.5V)

Check before use

  • Ensure the RSET resistor value is correctly calculated for the desired current limit threshold.

Key specifications

Input Voltage
2.4V - 5.5V
Current Limit
0.4A - 2A (Adjustable)
RDS(ON)
80 mΩ

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Power ManagementConsumer Electronics

Datasheet

cf0d77d86f67a5fd5f3c0c5e7eb124f0_pd.jsp.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for RY2121: 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

The RY2121 is a power distribution switch with an adjustable current limit (0.4A to 2A) and an integrated 80mΩ MOSFET, designed to protect power sources from overcurrent and short-circuit conditions.