CROSS-REFERENCE ALTERNATIVE
COS9051TR is a Chinese-manufactured Micro-Power Op-Amp from COSINE (科山芯创) that cross-references to TLV9051IDBVR (TI).
It is a SOT23-5 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
COS9051TR — Micro-Power Op-Amp, alternative to TLV9051IDBVR
COS9051TR is supplied by Shenzhen Jingteng Electronics (JTDZ Tech) as a domestically sourced option for TLV9051IDBVR (TI). 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 COS9051TR replace?
Every imported part number that COS9051TR 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) |
|---|---|---|
| TLV9051IDBVR | TI | COS9051TR |
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 | COS9051TR |
| Manufacturer | COSINE (科山芯创) |
| Device class | Micro-Power Op-Amp |
| Package | SOT23-5 |
| Pin Count | 5 |
| Verified and new, traceable date code | |
| Stock | In stock, ships within 24 hours |
| Description | Micro-Power Op-Amp, SOT23-5 package. |
What to verify before substituting COS9051TR
These are the parameters that decide whether a cross-reference works in practice. Run through the list against the datasheet before releasing a change:
- Quiescent current per channel — and whether it holds up at the supply voltage you use, not just at the typical point
- Gain-bandwidth product at the rated Iq; micro-power parts are slow, confirm your signal bandwidth
- Input bias current, which rises sharply at high temperature on CMOS input stages
- Output drive capability at low supply voltage
- Supply range and operation down to the minimum rail
- Input common-mode range and output swing
- Package and pinout for single/dual/quad
Typical applications
- Battery-powered and portable instruments
- IoT sensor nodes and wireless modules
- Energy-harvesting and low-power sensing
- Wearable and medical monitoring devices
- Remote data loggers
- Battery fuel gauging and monitoring
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 |
|---|---|---|---|
| COS379SR | SOP8 | OPA379AIDCKR, TLV9041, TSV611 | Micro-Power Op-Amp |
| COS9041TR | SOT23-5 | TLV9041IDBVR | Micro-Power Op-Amp |
| COS6054SR | SOP14 | — | Micro-Power Op-Amp |
| COS2347SR | SOP8 | OPA2347AIDR, MCP6232-E/SN, MCP6052-E/SN | Micro-Power Op-Amp |
| COS6001TR | SOT23-5 | MCP6001T-I/OT | Micro-Power Op-Amp |
| COS6002SR | SOP8 | MCP6002-E/SN | Micro-Power Op-Amp |
| COS6002MR | MSOP8 | MCP6002-E/SN | Micro-Power Op-Amp |
| COS6004SR | SOP14 | MCP6004-I/SL | Micro-Power Op-Amp |
Frequently asked questions
What does COS9051TR replace?
According to the COSINE (科山芯创) 2025 cross-reference table, COS9051TR is published as an alternative to TLV9051IDBVR (TI).
Is COS9051TR a pin-to-pin drop-in for TLV9051IDBVR?
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 TLV9051IDBVR 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 COS9051TR?
MOQ 1 pc. COS9051TR 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 COS9051TR
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 Amplifiers / Data Conversion
Genuine original parts guaranteed — traceable lot & date code, X-ray / visual inspection and third-party test supported before shipment.
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