MAX281BCPA+ Equivalent & Substitute Parts

Part Overview

The MAX281BCPA+ is a Bessel, Low Pass Switched Capacitor Filter IC manufactured by Analog Devices Inc./Maxim Integrated. This 5th Order filter operates at a 20kHz cutoff frequency and is housed in an 8-PDIP through-hole package. The component is classified as Active product status with full ROHS3 compliance and unlimited moisture sensitivity rating. Alternative components are identified based on matching electrical specifications, package compatibility, and supply voltage requirements.

Substiute Parts

MAX281BCPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3952MAX281BCPA+ Datasheet

Current PartRFQ

MAX281BCPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3952MAX281BCPA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MAX281BCPA+ is determined by the following critical parameters:

• Filter Type: Bessel, Low Pass Switched Capacitor topology
• Filter Order: 5th order configuration
• Frequency - Cutoff or Center: 20kHz operation
• Number of Filters: Single filter per package
• Voltage - Supply: Dual supply range 4.75V ~ 16V or ±2.375V ~ 8V
• Package / Case: 8-DIP (0.300", 7.62mm) through-hole form factor
• Mounting Type: Through Hole compatibility

Only components matching all these parameters across electrical function, frequency response, supply voltage range, and physical package dimensions qualify as direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

The MAX281BCPA+ maintains Active product status with full ROHS3 compliance and REACH unaffected classification. Selection of substitute components must maintain identical electrical specifications including the Bessel filter topology, 5th order configuration, and 20kHz cutoff frequency. Supply voltage compatibility across both single and dual supply ranges is mandatory. Physical package compatibility with 8-DIP through-hole mounting is required for direct board-level substitution. Compliance certifications including ROHS3 status and MSL rating must be verified for equivalent parts.

Frequently Asked Questions (FAQ)

Q: What defines a valid substitute for the MAX281BCPA+? A: A valid substitute must match the Bessel, Low Pass Switched Capacitor filter type, 5th order configuration, 20kHz cutoff frequency, single filter count, dual supply voltage range (4.75V ~ 16V or ±2.375V ~ 8V), and 8-DIP through-hole package format.

Q: Can I use a different filter order or cutoff frequency? A: No. The 5th order configuration and 20kHz cutoff frequency are core functional specifications. Deviations alter the filter response characteristics and are not acceptable substitutions.

Q: Is the 8-DIP package format interchangeable with other packages? A: No. The 8-DIP (0.300", 7.62mm) through-hole package is specific to this component. Alternative package formats require board redesign and are not direct substitutes.

Q: What is the significance of the dual supply voltage range? A: The MAX281BCPA+ operates with either single supply (4.75V ~ 16V) or dual supply (±2.375V ~ 8V). Substitute components must support both supply configurations to ensure circuit compatibility.

Q: Are there any compliance considerations for substitution? A: Yes. Substitute components must maintain ROHS3 compliance and MSL rating of 1 (Unlimited) to meet regulatory and manufacturing requirements.