MAX263BC/D Equivalent & Substitute Parts

Part Overview

The MAX263BC/D is a Universal Switched Capacitor Filter IC featuring a 2nd order configuration with a 57kHz cutoff frequency, designed for signal conditioning and filtering applications. This component is classified as obsolete, making identification of suitable alternatives essential for ongoing system support and new design implementations. The die package format limits direct board-level substitution but allows for hybrid and custom packaging solutions where the functional performance remains critical.

Substiute Parts

MAX263BC/D

Analog Devices Inc./Maxim IntegratedIn Stock: 823MAX263BC/D Datasheet

Current PartRFQ

MAX263BEWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 1149MAX263BEWI+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX263BC/D is determined by the following critical parameters that must remain functionally equivalent:

• Filter Architecture: Universal Switched Capacitor topology
• Frequency Specification: 57kHz cutoff or center frequency
• Filter Configuration: 2nd order, dual filter channels
• Supply Voltage Range: Compatibility with ±2.37V ~ 6.3V operation
• Base Product Number: MAX263 series maintains functional equivalence

The MAX263BEWI+ qualifies as a manufacturer-recommended substitute based on identical filter specifications, matching frequency response, and equivalent electrical performance. The primary distinction is packaging format: the substitute transitions from die form to 28-SOIC surface mount package, enabling direct board-level integration without hybrid assembly requirements.

Parameter Comparison

Engineering Selection Recommendations

The MAX263BEWI+ is the manufacturer-recommended substitute for the obsolete MAX263BC/D. Selection is based on the following engineering criteria:

• Functional Equivalence: Identical filter specifications, frequency response, and electrical performance across all critical parameters
• Supply Voltage Compatibility: The substitute supports the original ±2.37V ~ 6.3V range with extended capability to 4.74V ~ 12.6V, ensuring backward compatibility
• Regulatory Compliance: Both components maintain ROHS3 compliance and identical moisture sensitivity ratings, satisfying environmental and reliability requirements
• Production Status: The substitute is in active production with confirmed inventory availability (1108 pcs), ensuring long-term supply continuity
• Package Transition: The 28-SOIC package format enables direct board-level integration without hybrid assembly, reducing implementation complexity compared to die-form alternatives

Frequently Asked Questions (FAQ)

Q: Can the MAX263BEWI+ directly replace the MAX263BC/D in existing designs?

A: Functional replacement is supported. The MAX263BEWI+ provides identical filter performance and electrical specifications. However, the package format differs (28-SOIC vs. die), requiring PCB layout modifications if the original design utilized die-form assembly. For hybrid or custom packaging applications, die-form alternatives may be necessary.

Q: What are the key differences between these parts?

A: The primary difference is packaging: MAX263BC/D is supplied as a bare die, while MAX263BEWI+ is packaged in 28-SOIC format. Electrically and functionally, both components are equivalent, with the substitute offering an extended supply voltage range (4.74V ~ 12.6V in addition to ±2.37V ~ 6.3V).

Q: Are there supply voltage compatibility concerns?

A: No. The MAX263BEWI+ supports the original operating range of ±2.37V ~ 6.3V plus an extended range. Designs operating within the original voltage specification will function identically with the substitute.

Q: Why is the original part obsolete?

A: The MAX263BC/D is classified as obsolete by the manufacturer. The MAX263BEWI+ represents the current production equivalent, ensuring access to active inventory and ongoing manufacturer support.

Q: What compliance certifications apply to both parts?

A: Both components are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings, meeting standard environmental and reliability requirements for industrial and commercial applications.