MAX271ENG Equivalent & Substitute Parts

Part Overview

The MAX271ENG is a continuous low pass filter IC manufactured by Analog Devices Inc./Maxim Integrated. This 2nd order low pass filter operates at a 25kHz cutoff frequency and integrates two filter channels in a single 24-DIP package. The device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

MAX271ENG
Analog Devices Inc./Maxim IntegratedIn Stock: 1144MAX271ENG Datasheet
MAX271ENG
Current Part
MAX271ENG+
Analog Devices Inc./Maxim IntegratedIn Stock: 1214MAX271ENG+ Datasheet
MAX271ENG+
Direct

Key Parameters

Parameter Specification
Manufacturer Part Number MAX271ENG
Manufacturer Analog Devices Inc./Maxim Integrated
Filter Type Continuous Low Pass
Frequency - Cutoff or Center 25kHz
Number of Filters 2
Filter Order 2nd
Voltage - Supply 4.74V ~ 16V, ±2.37V ~ 8V
Mounting Type Through Hole
Package / Case 24-DIP (0.300", 7.62mm)
Product Status Obsolete

Substitute Part Grouping Explanation

Substitution of the MAX271ENG is determined by strict equivalence across the following critical parameters:

  • Filter Type: Continuous Low Pass
  • Frequency - Cutoff or Center: 25kHz
  • Number of Filters: 2
  • Filter Order: 2nd
  • Voltage - Supply: 4.74V ~ 16V, ±2.37V ~ 8V
  • Package / Case: 24-DIP (0.300", 7.62mm)
  • Mounting Type: Through Hole

The MAX271ENG+ meets all electrical and mechanical substitution criteria, maintaining identical filter specifications, supply voltage ranges, and physical packaging. Both devices are manufactured by Analog Devices Inc./Maxim Integrated and share the same base product number (MAX271).

Parameter Comparison

Parameter MAX271ENG MAX271ENG+
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated
Filter Type Continuous Low Pass Continuous Low Pass
Frequency - Cutoff or Center 25kHz 25kHz
Number of Filters 2 2
Filter Order 2nd 2nd
Voltage - Supply 4.74V ~ 16V, ±2.37V ~ 8V 4.74V ~ 16V, ±2.37V ~ 8V
Mounting Type Through Hole Through Hole
Package / Case 24-DIP (0.300", 7.62mm) 24-DIP (0.300", 7.62mm)
Supplier Device Package 24-PDIP 24-PDIP
Product Status Obsolete Obsolete
RoHS Status RoHS non-compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited) 1 (Unlimited)
REACH Status REACH Unaffected REACH Unaffected
ECCN EAR99 EAR99
HTSUS 8542.39.0001 8542.39.0001

Engineering Selection Recommendations

The MAX271ENG+ is a direct electrical and mechanical equivalent to the MAX271ENG. Both devices are obsolete products from Analog Devices Inc./Maxim Integrated with identical filter specifications and packaging.

The primary distinction between these parts is regulatory compliance: the MAX271ENG+ carries ROHS3 compliance, whereas the MAX271ENG is RoHS non-compliant. For applications subject to RoHS directives or environmental regulations, the MAX271ENG+ is the appropriate selection. Both devices maintain identical moisture sensitivity levels and REACH status.

Frequently Asked Questions (FAQ)

Q: Can MAX271ENG+ replace MAX271ENG in existing designs?

A: Yes. The MAX271ENG+ is electrically and mechanically equivalent. Both devices provide identical 2nd order continuous low pass filtering at 25kHz with two filter channels, operate across the same supply voltage range (4.74V ~ 16V, ±2.37V ~ 8V), and use the same 24-DIP through-hole package.

Q: What is the difference between MAX271ENG and MAX271ENG+?

A: The MAX271ENG+ is ROHS3 compliant, while the MAX271ENG is RoHS non-compliant. All electrical specifications and physical packaging are identical.

Q: Are both parts still available?

A: Both MAX271ENG and MAX271ENG+ are classified as obsolete products. Inventory availability should be confirmed with authorized distributors.

Q: Does the package type differ between these parts?

A: No. Both parts use the 24-DIP (0.300", 7.62mm) through-hole package with identical pin configurations and mechanical dimensions.

Q: What supply voltages do these filters support?

A: Both devices support dual supply configurations: 4.74V ~ 16V (single supply) or ±2.37V ~ 8V (dual supply).

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