COS4277SR - OP4177 Alternative | COSINE 36V Precision Op-Amp

Cross-reference  ·  Before you substitute  ·  Related parts  ·  FAQ  ·  Request a quote

COS4277SR — 36V Precision Op-Amp, alternative to OP4177

COS4277SR is supplied by Shenzhen Jingteng Electronics (JTDZ Tech) as a domestically sourced option for OP4177 (ADI), OPA4277 (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 COS4277SR replace?

Every imported part number that COS4277SR is published as a cross-reference alternative to, per the COSINE (科山芯创) 2025 selection table:

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

What to verify before substituting COS4277SR

These are the parameters that decide whether a cross-reference works in practice. Run through the list against the datasheet before releasing a change:

1. Supply voltage range (±2 V to ±18 V class) and whether the design needs the full 36 V swing
2. Input offset voltage and offset drift over temperature — the dominant error term in a precision stage
3. Input bias and offset current, and the resulting error across the source impedance you actually use
4. Gain-bandwidth product and slew rate at your closed-loop gain
5. Input common-mode range and output voltage swing against the required headroom
6. Quiescent current per amplifier and total package dissipation
7. Package and pinout (single/dual/quad) — confirm the pin assignment matches before swapping

Typical applications

• Industrial process control and 4–20 mA loops
• Precision sensor signal conditioning
• Instrumentation and data-acquisition front ends
• Medical and laboratory equipment
• Test and measurement instruments
• Audio and active-filter stages

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.

Frequently asked questions

What does COS4277SR replace?

According to the COSINE (科山芯创) 2025 cross-reference table, COS4277SR is published as an alternative to OP4177 (ADI), OPA4277 (TI).

Is COS4277SR a pin-to-pin drop-in for OP4177?

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 OP4177 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 COS4277SR?

MOQ 1 pc. COS4277SR 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 COS4277SR

Send us the part number and target quantity — we reply within 2 business hours with price, stock and a cross-reference confirmation.

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