MAX351ESE Equivalent & Substitute Parts

Part Overview

The MAX351ESE is a 4-circuit SPST-NC (Single Pole Single Throw - Normally Closed) analog switch IC manufactured by Analog Devices Inc./Maxim Integrated. This device features a 1:1 multiplexer/demultiplexer configuration with 35Ohm on-state resistance and operates across a wide supply voltage range (10V to 30V single supply, or ±4.5V to ±20V dual supply). The MAX351ESE is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Active alternatives with identical or superior electrical characteristics are available from both Analog Devices and Vishay Siliconix.

Key Parameters

Parameter	Value
Switch Circuit Type	SPST - NC
Number of Circuits	4
Multiplexer/Demultiplexer Configuration	1:1
On-State Resistance (Max)	35Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm (Max)
Voltage - Supply, Single (V+)	10V ~ 30V
Voltage - Supply, Dual (V±)	±4.5V ~ 20V
Switch Time (Ton, Toff) (Max)	175ns, 145ns
Charge Injection	5pC
Channel Capacitance (CS(off), CD(off))	9pF, 9pF
Current - Leakage (IS(off)) (Max)	250pA
Crosstalk	-85dB @ 1MHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MAX351ESE is determined by the following critical parameters:

Primary Substitution Criteria:

Switch circuit type: SPST - NC
Number of circuits: 4
Multiplexer configuration: 1:1
On-state resistance: 35Ohm maximum
Package: 16-SOIC form factor
Operating temperature range: -40°C ~ 85°C

Secondary Compatibility Factors:

Supply voltage ranges (single and dual)
Switch timing characteristics (Ton, Toff)
Charge injection and capacitance specifications
Leakage current and crosstalk performance

Substitute parts are grouped into two categories:

Category 1: Direct Equivalents (35Ohm On-State Resistance) Parts maintaining identical 35Ohm on-state resistance with matching electrical performance: MAX351ESE+, ADG411BRZ, ADG411BRZ-REEL, ADG411BRZ-REEL7, and DG411DY-E3, DG411DY-T1-E3.

Category 2: Enhanced Performance Alternatives (24Ohm On-State Resistance) Parts with improved on-state resistance (24Ohm) and faster switching times: ADG431BRZ, ADG431BRZ-REEL, and ADG431BRZ-REEL7. These provide lower insertion loss and reduced power dissipation while maintaining all other functional requirements.

Parameter Comparison

Part Number	Manufacturer	Product Status	Ron (Max)	ΔRon (Max)	V+ Supply	V± Supply	Ton/Toff (Max)	RoHS Status	Packaging
MAX351ESE	Analog Devices	Obsolete	35Ohm	2Ohm	10V ~ 30V	±4.5V ~ 20V	175ns, 145ns	Non-compliant	16-SOIC
MAX351ESE+	Analog Devices	Active	35Ohm	2Ohm	10V ~ 30V	±4.5V ~ 20V	175ns, 145ns	ROHS3 Compliant	16-SOIC (Tube)
ADG411BRZ	Analog Devices	Active	35Ohm	—	12V	±15V	175ns, 145ns	ROHS3 Compliant	16-SOIC (Tube)
ADG411BRZ-REEL	Analog Devices	Active	35Ohm	—	12V	±15V	175ns, 145ns	ROHS3 Compliant	16-SOIC (CT & Digi-Reel)
ADG411BRZ-REEL7	Analog Devices	Active	35Ohm	—	12V	±15V	175ns, 145ns	ROHS3 Compliant	16-SOIC (CT & Digi-Reel)
ADG431BRZ	Analog Devices	Active	24Ohm	1.2Ohm	12V	±15V	90ns, 60ns	ROHS3 Compliant	16-SOIC (Tube)
ADG431BRZ-REEL	Analog Devices	Active	24Ohm	1.2Ohm	12V	±15V	90ns, 60ns	ROHS3 Compliant	16-SOIC
ADG431BRZ-REEL7	Analog Devices	Active	24Ohm	1.2Ohm	12V	±15V	90ns, 60ns	ROHS3 Compliant	16-SOIC (CT & Digi-Reel)
DG411DY-E3	Vishay Siliconix	Active	35Ohm	—	5V ~ 44V	±5V ~ 20V	175ns, 145ns	ROHS3 Compliant	16-SOIC (Tube)
DG411DY-T1-E3	Vishay Siliconix	Active	35Ohm	—	5V ~ 44V	±5V ~ 20V	175ns, 145ns	ROHS3 Compliant	16-SOIC (CT & Digi-Reel)

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance):

MAX351ESE+ is the primary recommended substitute. It maintains identical electrical specifications and on-state resistance while offering active product status and ROHS3 compliance. This part is suitable for designs requiring no circuit modifications.

ADG411BRZ, ADG411BRZ-REEL, and ADG411BRZ-REEL7 provide equivalent 35Ohm on-state resistance and switching characteristics. These Analog Devices parts are active and ROHS3 compliant. Supply voltage specifications differ (12V single supply, ±15V dual supply versus the original 10V-30V and ±4.5V-±20V ranges), requiring verification that application requirements fall within these narrower ranges.

DG411DY-E3 and DG411DY-T1-E3 (Vishay Siliconix) offer the widest supply voltage compatibility (5V-44V single, ±5V-±20V dual) while maintaining 35Ohm on-state resistance and identical switching times. These are suitable for applications requiring extended voltage range operation.

For Enhanced Performance Applications:

ADG431BRZ, ADG431BRZ-REEL, and ADG431BRZ-REEL7 provide superior performance with 24Ohm on-state resistance (31% lower than MAX351ESE) and faster switching times (90ns/60ns versus 175ns/145ns). These parts are appropriate for applications where reduced insertion loss and power dissipation are beneficial, provided supply voltage requirements align with 12V single or ±15V dual specifications.

Compliance and Availability:

All recommended substitutes are ROHS3 compliant and carry active product status, ensuring long-term availability and regulatory compliance. Packaging options (Tube, Cut Tape, Digi-Reel) should be selected based on procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can MAX351ESE+ be used as a direct drop-in replacement for MAX351ESE?

A: Yes. MAX351ESE+ maintains identical electrical specifications, on-state resistance (35Ohm), switching times, and package form factor. The primary difference is product status (active versus obsolete) and RoHS compliance (ROHS3 compliant). No circuit modifications are required.

Q: What is the difference between ADG411BRZ and ADG431BRZ?

A: Both are 4-circuit SPST-NC switches in 16-SOIC packages. The primary difference is on-state resistance: ADG411BRZ provides 35Ohm (matching MAX351ESE), while ADG431BRZ provides 24Ohm with faster switching times (90ns/60ns versus 175ns/145ns). ADG431BRZ is suitable for applications where lower insertion loss is required.

Q: Are the Vishay DG411 parts compatible with the original MAX351ESE supply voltage range?

A: DG411DY-E3 and DG411DY-T1-E3 support wider supply voltage ranges (5V-44V single, ±5V-±20V dual) that encompass the MAX351ESE specifications (10V-30V single, ±4.5V-±20V dual). These parts are compatible with MAX351ESE applications and offer extended voltage flexibility.

Q: What packaging options are available for these substitute parts?

A: Substitute parts are available in three packaging formats: Tube (standard packaging for lower-volume applications), Cut Tape & Digi-Reel (for automated assembly), and standard reel configurations. Selection depends on procurement volume and assembly process requirements.

Q: Do all substitute parts maintain the same 16-SOIC package dimensions?

A: Yes. All substitute parts use the 16-SOIC package with 0.154" (3.90mm) width, ensuring mechanical compatibility with MAX351ESE PCB layouts and footprints.

Q: Which substitute offers the best performance improvement over MAX351ESE?

A: ADG431BRZ series parts provide the most significant performance enhancement with 24Ohm on-state resistance (31% reduction) and switching times of 90ns/60ns (approximately 49% faster than MAX351ESE). These improvements reduce power dissipation and enable faster signal switching in applications where these characteristics are beneficial.

Q: Are all substitute parts RoHS compliant?

A: Yes. All recommended substitute parts carry ROHS3 compliance status. The original MAX351ESE is RoHS non-compliant, making compliant substitutes necessary for applications subject to RoHS regulations.

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