FSA1257L8X The FSA1257L8X is an analog switch from On Semiconductor featuring a SPST-NCX2 configuration, 1.15 Ohm on resistance, and a surface-mount 8-MicroPak package.
Mfr Part #:

FSA1257L8X

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The FSA1257L8X is an analog switch from On Semiconductor featuring a SPST-NCX2 configuration, 1.15 Ohm on resistance, and a surface-mount 8-MicroPak package.
Total Stock: 60,000 pcs

FSA1257L8X Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
40,000 pcs
40000 pcs On Request 1 On Request On Request 1437+ On Request On Request
Non-Authorised Inventory information
20,000 pcs
20000 pcs On Request 1 On Request On Request On Request On Request On Request

FSA1257L8X Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Channel
Channel Capacitance (CS(off), CD(off))
Charge Injection
Crosstalk
Current
Mounting Type
Multiplexer
Number of Circuits
On
Operating Temperature
Supplier Device Package
Supplier Package
Switch Circuit
Switch Time (Ton, Toff) (Max)
Tape & Reel
Voltage

FSA1257L8X Description

Short technical summary and product information.

The FSA1257L8X is an integrated circuit analog switch manufactured by On Semiconductor. It features a single-pole, single-throw (SPST) configuration with a maximum on resistance of 1.15 Ohms. The device operates within a voltage range of 1.65V to 5.5V and is designed for surface mounting in an 8-UFQFN package, compatible with tape and reel packaging for automated assembly.

 

This switch is suitable for applications requiring low resistance and high isolation, such as signal routing and switching in communication and instrumentation systems. Its typical on resistance is 1.15 Ohms, with a channel resistance of 60 milliohms, and it can switch with a maximum time of 35 nanoseconds for Ton and 15 nanoseconds for Toff. The device also features a bandwidth of 300 MHz at -3dB, charge injection of 20 pC, and channel capacitance of 11.5 pF when off. It operates over a temperature range from -40°C to 85°C.

 

The package is designed for surface mounting, specifically in an 8-UFQFN form factor, and is supplied in a tape and reel format for ease of handling in manufacturing processes.

FSA1257L8X Quick Information

Product Type: Analog Switch
Canonical Name: IC Switch SPST-NCX2 1.15 Ohm 8-MicroPak

FSA1257L8X Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

FSA1257L8X Features

  • Operates within 1.65V to 5.5V voltage range.
  • Typical on resistance of 1.15 Ohm.
  • Switch time ranges from 15ns to 35ns.
  • Supports 300MHz bandwidth at -3dB.
  • Package type is 8-UFQFN with surface mounting.

FSA1257L8X Applications

  • Used in RF signal routing
  • Suitable for communication systems
  • Ideal for instrumentation switching
  • Applicable in automated manufacturing

FSA1257L8X FAQs

4 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the FSA1257L8X?

The operating voltage range is 1.65V to 5.5V.

What package does the FSA1257L8X come in?

It comes in an 8-UFQFN surface-mount package.

What is the maximum switching time for the FSA1257L8X?

The maximum switch time is 35 nanoseconds for Ton and 15 nanoseconds for Toff.

Is the FSA1257L8X RoHS compliant?

Yes, it is RoHS3 compliant.

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