MAX4535EUD Equivalent & Substitute Parts

Part Overview

The MAX4535EUD is a 2-circuit IC switch with DPST-NO configuration and 400Ohm on-state resistance, manufactured by Analog Devices Inc./Maxim Integrated. This component operates across single supply (9V–36V) and dual supply (±4.5V–20V) ranges, making it suitable for signal routing and multiplexing applications in industrial and consumer electronics.

The MAX4535EUD carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for legacy systems and new designs requiring compatible functionality.

Key Parameters

Parameter	Value
Switch Circuit Configuration	DPST - NO (Double Pole Single Throw - Normally Open)
Multiplexer/Demultiplexer Circuit	2:1
Number of Circuits	2
On-State Resistance (Max)	400Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm
Voltage - Supply, Single (V+)	9V – 36V
Voltage - Supply, Dual (V±)	±4.5V – 20V
Switch Time (Ton, Toff) (Max)	275ns, 200ns
Charge Injection	1pC
Channel Capacitance (CS(off), CD(off))	5pF, 4pF
Current - Leakage (IS(off)) (Max)	500pA
Crosstalk	-53dB @ 1MHz
Operating Temperature	-40°C – 85°C (TA)
Mounting Type	Surface Mount
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Base Product Number	MAX4535

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4535EUD is determined by strict equivalence across the following critical parameters:

Switch Circuit Configuration: DPST - NO topology must be maintained
Multiplexer/Demultiplexer Circuit: 2:1 channel configuration
Number of Circuits: 2 circuits required
On-State Resistance (Max): 400Ohm specification
Channel-to-Channel Matching (ΔRon): 2Ohm tolerance
Supply Voltage Ranges: Single supply (9V–36V) and dual supply (±4.5V–20V)
Switch Timing: Ton (275ns max) and Toff (200ns max)
Charge Injection: 1pC specification
Channel Capacitance: CS(off) 5pF, CD(off) 4pF
Leakage Current: 500pA maximum
Crosstalk Performance: -53dB @ 1MHz
Operating Temperature Range: -40°C – 85°C
Package: 14-TSSOP form factor with identical pinout and mechanical dimensions

The MAX4535EUD+ qualifies as a direct substitute based on complete parameter equivalence across all electrical and mechanical specifications.

Parameter Comparison

Parameter	MAX4535EUD (Main Part)	MAX4535EUD+ (Substitute)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Product Status	Obsolete	Active
Switch Circuit	DPST - NO	DPST - NO
Multiplexer/Demultiplexer Circuit	2:1	2:1
Number of Circuits	2	2
On-State Resistance (Max)	400Ohm	400Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm	2Ohm
Voltage - Supply, Single (V+)	9V – 36V	9V – 36V
Voltage - Supply, Dual (V±)	±4.5V – 20V	±4.5V – 20V
Switch Time (Ton, Toff) (Max)	275ns, 200ns	275ns, 200ns
Charge Injection	1pC	1pC
Channel Capacitance (CS(off), CD(off))	5pF, 4pF	5pF, 4pF
Current - Leakage (IS(off)) (Max)	500pA	500pA
Crosstalk	-53dB @ 1MHz	-53dB @ 1MHz
Operating Temperature	-40°C – 85°C (TA)	-40°C – 85°C (TA)
Mounting Type	Surface Mount	Surface Mount
Package / Case	14-TSSOP (0.173", 4.40mm Width)	14-TSSOP (0.173", 4.40mm Width)
Base Product Number	MAX4535	MAX4535
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Packaging Type	Not specified	Tube
Inventory Status	1001 Pcs New Original In Stock	1590 Pcs New Original In Stock

Engineering Selection Recommendations

The MAX4535EUD+ is the direct substitute for the MAX4535EUD. Both components share identical electrical specifications and 14-TSSOP package configuration, ensuring pin-for-pin compatibility and functional equivalence in circuit applications.

The primary distinction between these parts is product lifecycle status: the MAX4535EUD is classified as Obsolete, while the MAX4535EUD+ maintains Active status. Additionally, the MAX4535EUD+ achieves ROHS3 compliance, whereas the original MAX4535EUD is RoHS non-compliant. The MAX4535EUD+ is supplied in Tube packaging and maintains higher inventory availability (1590 Pcs versus 1001 Pcs).

For new designs and legacy system support requiring the MAX4535 2-circuit DPST-NO switch with 400Ohm on-state resistance, the MAX4535EUD+ is the appropriate selection. The Active product status and regulatory compliance of the MAX4535EUD+ provide assurance of continued manufacturing support and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the MAX4535EUD+ be used as a direct replacement for the MAX4535EUD in existing designs?

A: Yes. The MAX4535EUD+ is electrically and mechanically equivalent to the MAX4535EUD. All electrical parameters, including on-state resistance, supply voltage ranges, switch timing, and package dimensions, are identical. The 14-TSSOP pinout is unchanged, enabling direct substitution without circuit modification.

Q: What is the significance of the RoHS compliance difference between these parts?

A: The MAX4535EUD+ is ROHS3 compliant, meeting current regulatory requirements for hazardous substance restrictions in electronic components. The original MAX4535EUD is RoHS non-compliant. For applications subject to RoHS regulations or requiring compliance documentation, the MAX4535EUD+ is the appropriate choice.

Q: Are there any performance differences between the MAX4535EUD and MAX4535EUD+?

A: No. Both parts deliver identical electrical performance across all specified parameters: 400Ohm on-state resistance, 2Ohm channel matching, 275ns/200ns switch timing, 1pC charge injection, and -53dB crosstalk at 1MHz. Operating temperature range and supply voltage specifications are also identical.

Q: What packaging formats are available for these parts?

A: The MAX4535EUD+ is supplied in Tube packaging. Both the MAX4535EUD and MAX4535EUD+ use the 14-TSSOP surface-mount package with 0.173" width and 4.40mm body dimensions.

Q: Why is the MAX4535EUD classified as Obsolete?

A: The MAX4535EUD carries an Obsolete product status designation. The MAX4535EUD+ represents the current active equivalent, ensuring ongoing manufacturing support and supply availability for applications requiring this 2-circuit DPST-NO switch topology.

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