MAX305ESE IC Switch DPST-NOX2 35OHM 16SOIC Equivalent & Substitute Parts

Part Overview

The MAX305ESE is a 2-circuit IC switch with DPST-NO configuration and 35Ohm on-state resistance, manufactured by Analog Devices Inc./Maxim Integrated. This component functions as a 2:1 multiplexer/demultiplexer in a 16-SOIC surface mount package. The MAX305ESE is classified as obsolete product status, making identification of active equivalent parts essential for ongoing design support and procurement continuity.

Substiute Parts

MAX305ESE

Analog Devices Inc./Maxim IntegratedIn Stock: 5337MAX305ESE Datasheet

Current PartRFQ

MAX305ESE+

Analog Devices Inc./Maxim IntegratedIn Stock: 728MAX305ESE+ Datasheet

DirectRFQ

MAX305CSE+

Analog Devices Inc./Maxim IntegratedIn Stock: 1170MAX305CSE+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX305ESE is determined by strict equivalence across all electrical and mechanical parameters. The following criteria establish valid substitutes:

Primary Substitution Criteria:

• Switch circuit configuration: DPST - NO
• Multiplexer/demultiplexer circuit: 2:1
• Number of circuits: 2
• On-state resistance (Max): 35Ohm
• Channel-to-channel matching (ΔRon): 500mOhm
• Supply voltage ranges: 10V ~ 30V (single) and ±4.5V ~ 20V (dual)
• Switch timing: 150ns (Ton), 100ns (Toff) maximum
• Charge injection: 10pC
• Channel capacitance: 12pF (CS(off) and CD(off))
• Leakage current: 500pA maximum
• Crosstalk: -90dB @ 1MHz
• Operating temperature: 0°C ~ 70°C
• Package: 16-SOIC surface mount

All identified substitutes maintain identical electrical performance and mechanical compatibility with the MAX305ESE across these parameters.

Parameter Comparison

Engineering Selection Recommendations

MAX305ESE+ (Direct Substitute): The MAX305ESE+ is the direct manufacturer equivalent with active product status. This part maintains complete electrical and mechanical parity with the MAX305ESE while offering ROHS3 compliance. The transition from obsolete to active status makes this the primary selection for new procurement and design continuity.

MAX305CSE+ (Parametric Equivalent): The MAX305CSE+ provides identical electrical performance and package compatibility. This part is also active and ROHS3 compliant. Selection between MAX305ESE+ and MAX305CSE+ depends on availability and supply chain requirements, as both meet all functional specifications.

Both substitute parts eliminate the obsolescence constraint of the original MAX305ESE while maintaining full electrical and mechanical compatibility for direct board-level replacement.

Frequently Asked Questions (FAQ)

Q: Can MAX305ESE+ and MAX305CSE+ be used interchangeably with MAX305ESE? A: Yes. Both substitute parts maintain identical electrical parameters, on-state resistance, switching characteristics, and 16-SOIC package dimensions. Direct substitution is supported without circuit modification.

Q: What is the difference between MAX305ESE+ and MAX305CSE+? A: Both parts are parametrically equivalent with identical electrical specifications and package configuration. The primary difference is product designation within the MAX305 family. Selection should be based on availability and supply chain logistics.

Q: Does the RoHS compliance difference affect substitution? A: The MAX305ESE is RoHS non-compliant, while MAX305ESE+ and MAX305CSE+ are ROHS3 compliant. For applications requiring RoHS compliance, the substitute parts are necessary. For legacy systems without compliance requirements, all three parts are electrically equivalent.

Q: Are there packaging differences between these parts? A: The main part (MAX305ESE) does not specify packaging format. Both substitutes (MAX305ESE+ and MAX305CSE+) are supplied in Tube packaging. All three use identical 16-SOIC surface mount package geometry (0.154", 3.90mm width).

Q: What is the inventory status for these parts? A: MAX305ESE has 5278 pcs in stock (obsolete status). MAX305ESE+ has 671 pcs available. MAX305CSE+ has 1122 pcs available. Both active substitutes maintain current inventory.

Q: Are there any temperature or voltage rating differences? A: No. All three parts operate identically across the 0°C ~ 70°C temperature range and support both single supply (10V ~ 30V) and dual supply (±4.5V ~ 20V) configurations.