MAX485EPA+
Analog Devices Inc./Maxim Integrated
MOQ 1 · Tube · RoHS · EIA-481 · DAP/DDP · T/T
Technical specifications
| Parameter / Attribute | Specification / Value |
|---|---|
| Type | Transceiver |
| Mounting | Through Hole |
| Supply voltage | 4.75V ~ 5.25V |
| Protocol | RS422, RS485 |
| Operating temperature | -40°C ~ 85°C |
| Duplex | Half |
| Package | Tube |
| Data rate | 2.5Mbps |
| Case | 8-DIP (0.300\", 7.62mm) |
| Receiver hysteresis | 70 mV |
| Number of drivers (Receivers) | 1/1 |
Need Stock or a Drop-in Second-Source for MAX485EPA+?
Package: SOIC-8 (Narrow 150mil) · Pin-compatible replacements with immediate Shenzhen spot stock
The standard 8-pin RS-485 transceiver is the backbone of Modbus, BACnet, and solar inverter communications. Western brands (Maxim/TI) often face recurring spot premiums. MaxLinear SP485 and 3PEAK TP485E provide 100% pin-compatible, electrical-superior drop-in replacements with enhanced ESD protection.
Verified Pin-Compatible Replacements (2 verified alternatives)
Enhanced ±15 kV ESD Protection & Stable Spot Delivery
Shenzhen Warehouse Spot Stock (24h Dispatch)
Up to 2.5 Mbps data rate, slew-rate limited for reduced EMI
4.75V – 5.25V (Standard 5V RS-485 bus)
Tier-1 Telecom Specified Second-Source with Proven Track Record
Immediate Reel Stock
Up to 10 Mbps data rate
5.0V ±5%
Buyer & Quality Checklist for Sourcing Alternatives
- Check bus fail-safe biasing resistors (pull-up on A, pull-down on B): 3PEAK TP485 includes integrated true fail-safe receiver inputs.
- Verify 120-ohm termination resistor placement at the physical cable ends of the RS-485 differential pair.
- Check common-mode input voltage range (-7V to +12V) across remote ground potentials.
Frequently Asked Technical Questions
Q: Can TP485E-SR replace MAX485ESA+ without re-qualifying the PCB layout?
A: Yes. TP485E-SR is an exact 1:1 footprint, electrical, and pinout drop-in for MAX485ESA+ in SOIC-8. Solder pads, pin definitions, voltage levels, and bus drive characteristics match directly, while providing superior ±15kV ESD surge immunity.