| Part Number | FSA551UCX | FSA553UCX | 
|---|---|---|
| Manufacturer | onsemi | onsemi | 
| Category | Interface - Analog Switches - Special Purpose | Interface - Analog Switches - Special Purpose | 
| 
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| Product Status | Obsolete | Active | 
| Applications | Audio | Audio | 
| Multiplexer/Demultiplexer Circuit | 1:1 | 1:1 | 
| Switch Circuit | SPST | SPST | 
| Number of Channels | 2 | 2 | 
| On-State Resistance (Max) | 600mOhm | 800mOhm | 
| Voltage - Supply, Single (V+) | 1.5V ~ 3V | 1.5V ~ 3V | 
| Voltage - Supply, Dual (V±) | - | - | 
| -3db Bandwidth | 240MHz | 200MHz | 
| Features | - | - | 
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 9-UFBGA, WLCSP | 9-UFBGA, WLCSP | 
| Supplier Device Package | 9-WLCSP (1.22x1.22) | 9-WLCSP (1.22x1.22) |