MAX33042EAKA+T

Overview

The MAX33042EAKA+T is a +5V, half-duplex CAN transceiver in an 8-pin SOT-23 package. It supports data rates up to 4Mbps with a supply voltage range of 4.5V to 5.5V. The device features ±40V fault protection on CANH and CANL pins, ±25V common-mode input range, and ±40kV ESD Human Body Model protection. It includes a transmitter-dominant timeout, thermal shutdown, and low-current standby mode. Operating temperature range is -40°C to +125°C.

Feature Summary

• Integrated ±40V fault tolerance and ±40kV ESD HBM protection for robust industrial operation
• Transmitter-dominant timeout mechanism prevents bus lockup from controller errors
• Flexible power management via STBY pin for low-current standby and slow slew rate modes
• Shutdown pin enables deep power saving by turning off the transmitter and receiver

Applications

• Industrial equipment communication networks
• Motor control systems
• Building automation controllers

Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or direct manufacturer channels. Confirm RoHS compliance status indicated by the '+' suffix. Ensure the specific SOT-23-8 tape and reel packaging matches design requirements. Validate that the ordering code corresponds to the correct temperature grade and package variant.

Selection Notes

Select this component when +5V logic compatibility and high noise immunity are required. The ±25V common-mode range suits environments with significant ground potential differences. Consider the 8-pin SOT-23 package for space-constrained PCB layouts. Verify that the 4Mbps speed meets network timing requirements and that dominant timeout settings align with protocol constraints.

Part Context

The MAX33042E belongs to the Maxim Integrated family of fault-protected CAN transceivers. It complements other variants like the MAX33040 and MAX33041, which offer different voltage levels or protection specifications. This series targets industrial applications requiring reliable communication under harsh electrical conditions.

Replacement Considerations

Direct replacements include MAX33042EASA+ (SOIC-8) for package variation. Cross-reference with MAX33040E or MAX33041E only if voltage levels and protection specs match application needs. Verify pinout compatibility before substitution.