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BL1551B AI Analysis:
Specs, Applications & Alternatives

AI summary

BL1551B product

BL1551B

Switches

Analog SwitchSPDTHigh Bandwidth

The BL1551B is a high-speed, low-voltage SPDT analog switch with 2.7Ω on-resistance and 350MHz bandwidth, designed for portable electronics.

Best for

  • Portable audio/video routing
  • High-speed signal switching
  • Relay replacement

Avoid if

  • Applications requiring extremely low leakage current beyond standard specs
  • High-power switching

Check before use

  • Control signal logic levels
  • Signal frequency vs. bandwidth

Key specifications

On-Resistance
2.7 Ω
Bandwidth
350 MHz
Supply Voltage
1.8 V - 5.5 V
Switching Time
25 ns (ton)

Compliance & Environment

RoHS
Lead-Free
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Consumer ElectronicsPortable Devices

Datasheet

8fee15599d8c3c2591658bdef4f2dd39_2201121900_BL-Shanghai-Belling-BL1551B_C2944066.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 BL1551B is a single-pole double-throw (SPDT) analog switch from Shanghai Belling, optimized for high-bandwidth and low-voltage applications.