CROSS-REFERENCE ALTERNATIVE
COSUSB42MUX is a Chinese-manufactured Analog Switch / Multiplexer from COSINE (科山芯创) that cross-references to TMUXHS221 (TI), and also to FSUSB42MUX.
It is a MSOP10 device positioned as a domestic-supply option against the imported: shorter lead times, no allocation risk and a stable price for volume production. Because the parts are not pin-identical in every case, the engineering checklist below lists what to verify before you commit.
Cross-reference · Before you substitute · Related parts · FAQ · Request a quote
COSUSB42MUX — Analog Switch / Multiplexer, alternative to TMUXHS221
COSUSB42MUX is supplied by Shenzhen Jingteng Electronics (JTDZ Tech) as a domestically sourced option for TMUXHS221 (TI), FSUSB42MUX (onsemi). Imported parts in this class are frequently subject to allocation, long lead times and steep price swings. A Chinese-manufactured equivalent removes that exposure: the parts are production-validated in industrial, consumer and automotive designs and ship from stock on a short lead time.
Cross-reference chart — which imported parts does COSUSB42MUX replace?
Every imported part number that COSUSB42MUX is published as a cross-reference alternative to, per the COSINE (科山芯创) 2025 selection table:
| imported part number | brand | Replaced by (this part) |
|---|---|---|
| TMUXHS221 | TI | COSUSB42MUX |
| FSUSB42MUX | onsemi | COSUSB42MUX |
Cross-reference means functional equivalence in the same application role. It is not a blanket claim of pin-for-pin identity — confirm package, pinout and the parameters listed below before you release a design change.
Device information
| Part number | COSUSB42MUX |
| Manufacturer | COSINE (科山芯创) |
| Device class | Analog Switch / Multiplexer |
| Package | MSOP10 |
| Pin Count | 10 |
| Verified and new, traceable date code | |
| Stock | In stock, ships within 24 hours |
| Description | Analog Switch / Multiplexer, MSOP10 package. |
What to verify before substituting COSUSB42MUX
These are the parameters that decide whether a cross-reference works in practice. Run through the list against the datasheet before releasing a change:
- On-resistance and its flatness over the signal range — flatness causes distortion in audio and precision paths
- Charge injection, which produces a voltage step when the switch is toggled with a high-impedance load
- Off-state leakage and on-state leakage across the full temperature range
- Signal range: whether the switch passes signals beyond the supply rails and its absolute maximum ratings
- Switch configuration (SPST/SPDT/DPDT) and control logic polarity
- Bandwidth and on-capacitance for high-speed paths
- Package, pinout and the number of channels
Typical applications
- Signal routing and channel selection
- Audio and video signal switching
- USB and high-speed data path switching
- Sensor multiplexing in data acquisition
- Test and measurement relay replacement
- Portable device accessory detection
Related COSINE parts and alternatives
Other {BRAND} parts in the same device family or the same device class — useful when you are cross-referencing a whole BOM rather than a single line item.
| COSINE part | Package | Cross-references to | Relation |
|---|---|---|---|
| COS4561TR | SOT23-6 | MAX4561EUT+T | Analog Switch / Multiplexer |
| COS4514TR | SOT23-5 | TS12A4514DBVR, MAX4568EUT+T | Analog Switch / Multiplexer |
| COS4515TR | SOT23-5 | TS12A4515DBVR, MAX4569EUT+T | Analog Switch / Multiplexer |
| COS12A12511S | MSOP8 | — | Analog Switch / Multiplexer |
| COS12A12511 | MSOP8 | TS12A12511 | Analog Switch / Multiplexer |
| COS5A23159 | MSOP10 | TS5A23159 | Analog Switch / Multiplexer |
| COSTS3USB30E | MSOP10 | TS3USB30EDGSR, FSUSB30MUX | Analog Switch / Multiplexer |
| COS3157ST | SOT23-6 | FAN3157 | Analog Switch / Multiplexer |
Frequently asked questions
What does COSUSB42MUX replace?
According to the COSINE (科山芯创) 2025 cross-reference table, COSUSB42MUX is published as an alternative to TMUXHS221 (TI), FSUSB42MUX (onsemi).
Is COSUSB42MUX a pin-to-pin drop-in for TMUXHS221?
Cross-reference means the part is intended for the same application role; it is not a blanket guarantee of pin-for-pin identity. Check package, pinout and the parameters listed under “What to verify” above, or send us your BOM and we will confirm before you commit.
Can you supply the TMUXHS221 as well?
Yes. We source both the imported and the Chinese-manufactured alternative, so you can compare price, lead time and availability on the same quote.
What is the MOQ and lead time for COSUSB42MUX?
MOQ 1 pc. COSUSB42MUX is held in stock and ships within 24 hours; quotes are returned within 2 business hours. We ship worldwide including India, Vietnam and the Middle East.
Request a quote for COSUSB42MUX
Send us the part number and target quantity — we reply within 2 business hours with price, stock and a cross-reference confirmation.
Request a quote More Interface Chips / RF Chips
Genuine original parts guaranteed — traceable lot & date code, X-ray / visual inspection and third-party test supported before shipment.
COSUSB42MUX-TMUXHS221-ALTERNATIVE-COSINE-ANALOG-SWITCH-MULTIPLEXER — COSINE to TMUXHS221
The COSUSB42MUX-TMUXHS221-ALTERNATIVE-COSINE-ANALOG-SWITCH-MULTIPLEXER is listed by Jingteng Electronics as a COSINE interface or RF component in the Interface & RF Chips category. We supply it as a genuine, original part sourced through verified channels, suitable for buyers who need reliable, fast-turn component sourcing.
Typical Applications
As an interface or RF component, this component is commonly designed into equipment that relies on Interface & RF Chips. Interface and RF components move signals between domains and over the air. They cover RS-232/485 transceivers, USB and CAN interfaces, RF amplifiers, mixers, switches and modulators used in wireless infrastructure, test equipment, satcom and broadband communications.
Authenticity & Sourcing
Jingteng supplies COSINE COSUSB42MUX-TMUXHS221-ALTERNATIVE-COSINE-ANALOG-SWITCH-MULTIPLEXER as genuine and original stock. COSINE is a third-party trademark referenced here only to identify the component; Jingteng is an independent distributor and does not act as an agent of the component manufacturer.
Request a Quote for COSUSB42MUX-TMUXHS221-ALTERNATIVE-COSINE-ANALOG-SWITCH-MULTIPLEXER
Need pricing or availability for COSUSB42MUX-TMUXHS221-ALTERNATIVE-COSINE-ANALOG-SWITCH-MULTIPLEXER? Send the part number and your target quantity and our team replies within 2 business hours with a quote.
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