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FSA1258AL8X
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Product Detailed Parameters
- Description：LOW RON LOW VOLTAGE DUAL-SPST AN
- Series：*
- Mfr：onsemi
- Package：Bulk
- Switch Circuit：-
- Multiplexer/Demultiplexer Circuit：-
- On-State Resistance (Max)：-
- Channel-to-Channel Matching (ΔRon)：-
- Voltage - Supply, Single (V+)：-
- Voltage - Supply, Dual (V±)：-
- Switch Time (Ton, Toff) (Max)：-
- -3db Bandwidth：-
- Charge Injection：-
- Channel Capacitance (CS(off), CD(off))：-
- Current - Leakage (IS(off)) (Max)：-
- Crosstalk：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Supplier Device Package：-
- Number of Circuits：-
- Grade：-
- Qualification：-
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Overview
The FSA1258AL8X is a high-speed single-pole double-throw (SPDT) analog switch manufactured by onsemi. It operates within a supply voltage range of 2.7 V to 5.5 V and features a low on-resistance of 1.15 Ohms maximum. The device supports a continuous DC current of 200 mA and includes ESD protection rated at 2 kV per HBM. It is housed in an 8-pin MicroPak package with dimensions of 1.60 mm, designed for surface-mount applications.
Feature Summary
- High-speed signal switching with low propagation delay
- Low on-resistance for minimal signal loss
- Integrated electrostatic discharge protection
- Compact footprint suitable for space-constrained designs
Applications
- USB 2.0/3.0 signal routing
- Portable media players
- Mobile handsets
- Storage peripherals
Procurement Notes
Verify the specific ordering suffix and package variant against the official datasheet before procurement. Confirm RoHS compliance status and check for any active lifecycle notices or obsolescence warnings directly from the manufacturer's documentation to ensure long-term availability.
Selection Notes
Select this component when a compact SPDT switch is required for high-frequency digital or analog signals. Ensure the operating voltage aligns with the 2.7 V to 5.5 V range. Consider the thermal dissipation capabilities of the MicroPak package if multiple switches are utilized in close proximity.
Part Context
This part belongs to the FSA series of analog switches from onsemi, which focuses on high-performance signal routing solutions. The series is commonly integrated into consumer electronics and portable devices requiring efficient signal management within limited board space.
Replacement Considerations
Check for direct pin-to-pin replacements within the same FSA family or equivalent SPDT switches from other manufacturers. Verify that alternative parts meet the same voltage, current, and speed specifications.
