MAX4609EPE Equivalent & Substitute Parts

Part Overview

The MAX4609EPE is a 2-circuit IC switch with SPST NO/NC configuration manufactured by Analog Devices Inc./Maxim Integrated. This component features 2.5Ohm on-state resistance and operates across a wide supply voltage range of 4.5V to 36V (single supply) or ±4.5V to ±20V (dual supply). The device is classified as obsolete, making identification of suitable alternatives essential for ongoing system support and new design implementations.

Substiute Parts

MAX4609EPE

Analog Devices Inc./Maxim IntegratedIn Stock: 1183MAX4609EPE Datasheet

Current PartRFQ

MAX4622CPE+

Analog Devices Inc./Maxim IntegratedIn Stock: 946MAX4622CPE+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX4609EPE is determined by the following critical parameters:

• Package Compatibility: Both main and substitute parts must use 16-DIP (0.300", 7.62mm) through-hole mounting to ensure PCB layout compatibility
• Circuit Configuration: The substitute must support 2-circuit operation with compatible switching topology
• Supply Voltage Range: The substitute must accommodate the required supply voltage specifications for the application
• On-State Resistance: The substitute's maximum on-state resistance must not exceed application requirements
• Operating Temperature Range: The substitute must cover the required operating temperature window
• Leakage Current: Maximum leakage specifications must meet system requirements

The MAX4622CPE+ qualifies as a substitute based on matching package type, circuit count, supply voltage compatibility, and leakage current specifications. However, differences in switch circuit topology, on-state resistance, and operating temperature range must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

The MAX4622CPE+ is an active product with ROHS3 compliance, addressing the obsolescence and regulatory compliance limitations of the MAX4609EPE. Both devices share identical single-supply voltage range (4.5V ~ 36V) and package form factor, supporting direct PCB integration.

Selection of MAX4622CPE+ requires evaluation of the following differences:

• On-State Resistance: The MAX4622CPE+ specifies 5Ohm maximum versus 2.5Ohm for the MAX4609EPE. Applications with strict resistance budgets must confirm compatibility
• Operating Temperature Range: The MAX4622CPE+ operates from 0°C to 70°C, narrower than the MAX4609EPE range of -40°C to 85°C. Low-temperature or extended-range applications require verification
• Dual Supply Voltage: The MAX4622CPE+ supports ±4.5V to ±18V versus ±4.5V to ±20V for the MAX4609EPE. Dual-supply designs operating above ±18V are not compatible
• Switch Circuit Topology: The MAX4622CPE+ implements DPST configuration versus SPST NO/NC in the original device. Circuit-level functional verification is required

Frequently Asked Questions (FAQ)

Q: Can MAX4622CPE+ directly replace MAX4609EPE in existing designs?

A: Direct replacement requires verification of three factors: (1) on-state resistance of 5Ohm is acceptable for the application, (2) operating temperature range of 0°C to 70°C covers the deployment environment, and (3) DPST switching topology meets functional requirements. PCB layout compatibility is confirmed through identical 16-DIP packaging.

Q: What is the impact of increased on-state resistance in MAX4622CPE+?

A: The MAX4622CPE+ on-state resistance of 5Ohm is double that of the MAX4609EPE. This increases voltage drop across the switch and power dissipation. Applications with low-impedance signal paths or high switching currents must calculate the impact on system performance.

Q: Are there temperature range limitations with MAX4622CPE+?

A: Yes. The MAX4622CPE+ operates from 0°C to 70°C, compared to -40°C to 85°C for the MAX4609EPE. Applications requiring operation below 0°C or above 70°C cannot use this substitute without additional thermal management or alternative component selection.

Q: Does MAX4622CPE+ meet current regulatory requirements?

A: Yes. The MAX4622CPE+ is ROHS3 compliant, addressing the RoHS non-compliance of the obsolete MAX4609EPE. This supports compliance with current environmental and procurement regulations.

Q: What is the difference between SPST NO/NC and DPST switching configurations?

A: SPST NO/NC (Single Pole Single Throw with Normally Open/Normally Closed) provides independent control of open and closed states. DPST (Double Pole Single Throw) switches two independent circuits simultaneously with a single control signal. Functional compatibility depends on application requirements for independent versus synchronized switching.

Q: Is the dual-supply voltage range reduction significant?

A: The MAX4622CPE+ supports ±4.5V to ±18V versus ±4.5V to ±20V for the MAX4609EPE. Applications using dual supplies above ±18V cannot use this substitute. Verify actual supply voltages in the design before selection.