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RY2121 AI Analysis:
Specs, Applications & Alternatives

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

EDA symbol, PCB footprint, and 3D model for this component. Supported tools include Altium, KiCad, Eagle, and more.

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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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.