MAX253ESA Equivalent & Substitute Parts

Part Overview

The MAX253ESA is a Transformer Driver PMIC manufactured by Analog Devices Inc./Maxim Integrated, designed for RS485 applications in 8-SOIC surface mount packaging. This component is classified as obsolete, with 2,157 units currently available in inventory. Due to its obsolete status, identifying functionally equivalent active alternatives is essential for ongoing design support and procurement continuity.

Substiute Parts

MAX253ESA

Analog Devices Inc./Maxim IntegratedIn Stock: 2217MAX253ESA Datasheet

Current PartRFQ

MAX253ESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1464MAX253ESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX253ESA is determined by strict equivalence across the following critical parameters:

• Base Product Number: Both parts share the MAX253 base designation, confirming functional equivalence
• Package / Case: Identical 8-SOIC (0.154", 3.90mm Width) packaging ensures mechanical and electrical compatibility
• Mounting Type: Both are surface mount components with identical land patterns
• Voltage - Supply: Both operate at 3.3V and 5V supply rails
• Current - Supply: Identical 450µA supply current specification
• Operating Temperature Range: Both rated -40°C ~ 85°C
• Application Category: Both classified as Transformer Driver for RS485 circuits

The substitute part MAX253ESA+ maintains full electrical and mechanical compatibility with the original MAX253ESA while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

MAX253ESA+ is the recommended substitute for new designs and procurement activities. Selection rationale is based on the following factors:

• Product Status: MAX253ESA+ maintains active product status with ongoing manufacturer support, whereas MAX253ESA is obsolete with no future availability guarantees
• Regulatory Compliance: MAX253ESA+ is ROHS3 compliant, meeting current environmental and regulatory requirements for electronics manufacturing and distribution
• Electrical Equivalence: Both parts maintain identical electrical specifications across supply voltage, current consumption, and operating temperature range
• Mechanical Compatibility: Pin-for-pin and package-equivalent design ensures direct substitution without PCB redesign
• Supply Chain Continuity: Active product status ensures long-term availability and procurement reliability

For existing designs currently using MAX253ESA, direct replacement with MAX253ESA+ requires no circuit modifications or validation testing due to complete parameter equivalence.

Frequently Asked Questions (FAQ)

Q: Can MAX253ESA+ be used as a direct replacement for MAX253ESA?

A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters. The MAX253ESA+ can be substituted without circuit modifications or PCB redesign.

Q: What is the primary difference between MAX253ESA and MAX253ESA+?

A: The MAX253ESA+ is the active product variant with ROHS3 compliance and tube packaging, while MAX253ESA is obsolete and RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there any package or pinout differences?

A: No. Both parts use identical 8-SOIC (0.154", 3.90mm Width) packaging with the same pin configuration and land pattern.

Q: What supply voltages are supported?

A: Both MAX253ESA and MAX253ESA+ operate at 3.3V and 5V supply rails with 450µA supply current.

Q: Is the operating temperature range the same?

A: Yes. Both parts are rated for -40°C to 85°C operating temperature range.

Q: Why is MAX253ESA marked as obsolete?

A: MAX253ESA has reached end-of-life status. MAX253ESA+ is the active replacement that maintains full functional equivalence while providing current regulatory compliance and manufacturer support.