PIN-TO-PIN ALTERNATIVE
SIT3485E is a Chinese-manufactured pin-to-pin drop-in replacement for MAX3485E (Maxim / Analog Devices).
RS-485 cross-reference with 15 kV ESD, on a standard MAX3485 footprint.
SIT3485E — Alternative to MAX3485E
SIT3485E from SIT {BRAND} is supplied by JTDZ Tech (Shenzhen Jingteng Electronics) as a cost-effective, short-lead-time alternative to the imported MAX3485E (Maxim / Analog Devices). Chinese-sourced semiconductors have moved well beyond "cheap substitute" status: the parts below are production-validated in industrial, automotive and consumer designs, and they remove both the allocation risk and the long lead times that come with imported.
Cross-Reference: MAX3485E vs SIT3485E
| imported | This part (Chinese alternative) | |
|---|---|---|
| Part number | MAX3485E | SIT3485E |
| Manufacturer | Maxim / Analog Devices | SIT {BRAND} |
| Package | SOP-8 | SOP-8 |
| Pin Count | 8 | |
| Compatibility | — | Pin-to-Pin drop-in replacement |
| Supply & lead time | Frequently allocated, long lead times | Domestic stock, short lead time |
| Description | 3.3 V RS-485 / RS-422 transceiver, Up to 12 Mbps, 3.3 V (also 5 V tolerant variants), SOP-8 package. |
Key Specifications
| Function | 3.3 V RS-485 / RS-422 transceiver |
| Supply | 3.3 V (also 5 V tolerant variants) |
| Data rate | Up to 12 Mbps |
| Nodes | Up to 256 |
| ESD | 15 kV |
| Temperature | -40 C to +125 C |
What to check before substituting SIT3485E for MAX3485E
- Pin-to-pin replacement for MAX3485E, no PCB change required.
- 15 kV ESD protection on the bus pins suits industrial cabinets and field wiring.
- One of the few domestic families to have broken through chip-level integrated lightning surge protection.
Typical Applications
- PLC and industrial automation
- Sensor networks and building automation
- Metering and power equipment
- RS-485 field buses
Why buy SIT3485E from JTDZ Tech
- and new parts from SIT {BRAND}, with traceable date codes
- MOQ 1 pc, tier pricing for volume and BOM kitting
- Cross-reference and substitution support: send us your BOM and we will confirm pin-to-pin compatibility before you commit
- X-ray, visual inspection and third-party lab testing supported on request
- Quote within 2 business hours; export shipping to India, Vietnam, the Middle East and worldwide
Need SIT3485E, or still prefer the MAX3485E? Send us your part list and target quantity — we will come back with pricing, stock and a compatibility confirmation within 2 business hours. Prices vary with quantity and market conditions, so the listed price is for reference only.
Genuine original parts guaranteed — traceable lot & date code, X-ray / visual inspection and third-party test supported before shipment.
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