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FSA1256L8X
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Product Detailed Parameters
- Description：IC SW SPST-NOX2 1.15OHM 8MICROPK
- Series：-
- Mfr：onsemi
- Package：Tape & Reel (TR),Cut Tape (CT)
- Switch Circuit：SPST - NO
- Multiplexer/Demultiplexer Circuit：1:01
- On-State Resistance (Max)：1.15Ohm
- Channel-to-Channel Matching (ΔRon)：60mOhm
- Voltage - Supply, Single (V+)：1.65V ~ 5.5V
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：35ns, 15ns
- -3db Bandwidth：300MHz
- Charge Injection：20pC
- Channel Capacitance (CS(off), CD(off))：11.5pF
- Current - Leakage (IS(off)) (Max)：2nA (Typ)
- Crosstalk：-100dB @ 1MHz
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-UFQFN
- Supplier Device Package：8-MicroPak™
- Number of Circuits：2
- Grade：-
- Qualification：-
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Overview
The FSA1256L8X is a dual single-pole single-throw (SPST) analog switch manufactured by onsemi. It operates within a supply voltage range of 2.7 V to 5.5 V and features a maximum on-resistance of 1.15 Ohms. The device supports a DC switch current of 200 mA with a maximum power dissipation of 180 mW. Electrical performance includes a maximum turn-on time of 35 ns and a maximum turn-off time of 15 ns. It functions reliably across an ambient temperature range from -40°C to +85°C. The component utilizes a MicroPak-8 surface-mount package.
Feature Summary
- Dual SPST configuration for independent signal routing
- Low on-resistance for minimal signal attenuation
- High-speed switching capability for data integrity
Applications
- Portable consumer electronics requiring low-voltage operation
- Signal routing in mobile communication devices
- Battery-powered equipment with space constraints
Procurement Notes
Verify the specific manufacturer source, as historical records indicate production by Fairchild Semiconductor prior to corporate restructuring. Confirm RoHS compliance status through official documentation. Check current lifecycle status, as some listings indicate end-of-life or obsolete classifications. Ensure the MicroPak-8 package variant matches design requirements.
Selection Notes
Select this component when a dual-channel analog switch is required for low-voltage applications below 5.5 V. The 1.15 Ohm on-resistance suits general-purpose signal switching where minimal distortion is needed. The MicroPak-8 package is appropriate for high-density PCB layouts. Verify that the 200 mA DC switch current meets load requirements.
Part Context
This part belongs to the FSA1256A series of analog switches. It shares functional similarities with the FSA1257L8X, though voltage specifications may differ. The device is categorized under Switch ICs within the broader Analog Switch ICs product line. It serves as a compact solution for signal path management in portable systems.
Replacement Considerations
The FSA1256AL8X is listed as an alias or related variant. Cross-reference pinouts and electrical parameters before substitution. Verify package compatibility and thermal characteristics. Consult official datasheets for exact parameter matching.
