MAX4541ESA-T Equivalent & Substitute Parts

Part Overview

The MAX4541ESA-T is a 2-circuit IC switch with SPST-NO (Single Pole Single Throw - Normally Open) configuration, rated at 60Ohm on-state resistance, housed in an 8-SOIC package. This component is classified as Obsolete by the manufacturer, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part operates across a single supply voltage range of 2.7V to 12V with switching times of 100ns (Ton) and 75ns (Toff), suitable for analog signal routing and multiplexing applications in industrial and consumer electronics.

Key Parameters

Parameter	Value	Unit
Switch Circuit Type	SPST - NO	—
Number of Circuits	2	—
On-State Resistance (Max)	60	Ohm
Channel-to-Channel Matching (ΔRon)	800	mOhm
Supply Voltage (Single)	2.7 to 12	V
Switch Time (Ton)	100	ns
Switch Time (Toff)	75	ns
Charge Injection	1	pC
Channel Capacitance (CS(off), CD(off))	8, 8	pF
Leakage Current (IS(off)) Max	100	pA
Crosstalk	-90	dB @ 1MHz
Operating Temperature	-40 to 85	°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution eligibility for the MAX4541ESA-T is determined by strict electrical and mechanical parameter matching across the following criteria:

Primary Substitution Parameters:

Switch circuit configuration: SPST - NO (2 circuits)
On-state resistance: 60Ohm maximum
Channel-to-channel matching: 800mOhm maximum
Supply voltage range: 2.7V to 12V single supply
Switching times: Ton ≤ 100ns, Toff ≤ 75ns
Charge injection: 1pC
Channel capacitance: 8pF (both CS(off) and CD(off))
Leakage current: 100pA maximum
Crosstalk: -90dB @ 1MHz
Operating temperature: -40°C to 85°C
Package: 8-SOIC surface mount

All identified substitute parts meet these electrical specifications identically. Packaging format variations (Cut Tape, Digi-Reel, Tube) do not affect electrical compatibility and represent procurement options only.

Parameter Comparison

Parameter	MAX4541ESA-T	MAX4541ESA+T	ISL84541IBZ
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated	Renesas Electronics Corporation
Product Status	Obsolete	Active	Obsolete
Switch Circuit	SPST - NO	SPST - NO	SPST - NO
Number of Circuits	2	2	2
On-State Resistance (Max)	60 Ohm	60 Ohm	60 Ohm
Channel-to-Channel Matching (ΔRon)	800 mOhm	800 mOhm	800 mOhm
Supply Voltage (Single)	2.7 to 12 V	2.7 to 12 V	2.7 to 12 V
Switch Time (Ton, Toff)	100 ns, 75 ns	100 ns, 75 ns	100 ns, 75 ns
Charge Injection	1 pC	1 pC	1 pC
Channel Capacitance (CS(off), CD(off))	8 pF, 8 pF	8 pF, 8 pF	8 pF, 8 pF
Leakage Current (IS(off)) Max	100 pA	100 pA	100 pA
Crosstalk	-90 dB @ 1MHz	-90 dB @ 1MHz	-90 dB @ 1MHz
Operating Temperature	-40 to 85 °C	-40 to 85 °C	-40 to 85 °C
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

MAX4541ESA+T (Recommended Primary Substitute)

The MAX4541ESA+T is the direct functional equivalent of the MAX4541ESA-T, manufactured by Analog Devices Inc./Maxim Integrated. This part maintains Active product status, ensuring long-term availability and manufacturer support. All electrical parameters are identical to the original part. The primary distinction is RoHS3 compliance, making this part suitable for applications requiring environmental regulation adherence. Packaging is available in Cut Tape and Digi-Reel formats, supporting both manual and automated assembly workflows. Current inventory availability is 2978 units.

ISL84541IBZ (Alternative Substitute)

The ISL84541IBZ, manufactured by Renesas Electronics Corporation, provides electrical equivalence across all specified parameters. This part carries Obsolete product status, similar to the original MAX4541ESA-T, but maintains RoHS3 compliance. The ISL84541IBZ is supplied in Tube packaging format. Current inventory availability is 1175 units. Selection of this part should account for its Obsolete status when planning long-term supply chain continuity.

Compliance Considerations

For new designs or applications requiring regulatory compliance, MAX4541ESA+T is the preferred selection due to its Active status and RoHS3 compliance. For legacy system maintenance where the original MAX4541ESA-T is already deployed, either substitute maintains full electrical compatibility. The original MAX4541ESA-T is RoHS non-compliant; both substitutes address this regulatory gap.

Frequently Asked Questions (FAQ)

Q: Can MAX4541ESA+T be used as a direct replacement for MAX4541ESA-T in existing designs?

A: Yes. The MAX4541ESA+T is electrically and mechanically identical to the MAX4541ESA-T. All electrical parameters, including on-state resistance, switching times, supply voltage range, and package dimensions, are equivalent. The primary difference is product status (Active vs. Obsolete) and RoHS compliance level.

Q: What is the difference between MAX4541ESA-T and MAX4541ESA+T?

A: The designations differ in packaging format and compliance status. MAX4541ESA-T is Obsolete and RoHS non-compliant. MAX4541ESA+T is Active, RoHS3 compliant, and available in Cut Tape and Digi-Reel packaging. Electrical specifications are identical.

Q: Is ISL84541IBZ compatible with MAX4541ESA-T?

A: Yes. The ISL84541IBZ meets all electrical specifications of the MAX4541ESA-T, including on-state resistance, switching times, supply voltage, and package dimensions. Both are 8-SOIC surface mount devices with identical circuit configurations. The ISL84541IBZ is manufactured by Renesas Electronics Corporation and carries RoHS3 compliance.

Q: What packaging formats are available for these substitutes?

A: MAX4541ESA+T is available in Cut Tape (CT) and Digi-Reel packaging. ISL84541IBZ is supplied in Tube format. All three parts use the same 8-SOIC (0.154", 3.90mm Width) package footprint, ensuring PCB compatibility regardless of packaging format selection.

Q: Are there supply voltage or temperature range differences between these parts?

A: No. All three parts operate identically across the 2.7V to 12V single supply range and -40°C to 85°C operating temperature range. Electrical performance is equivalent across these environmental conditions.

Q: Which substitute should be selected for new designs?

A: MAX4541ESA+T is recommended for new designs due to its Active product status, ensuring manufacturer support and long-term availability. RoHS3 compliance also addresses current regulatory requirements in most markets.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. All three parts share identical 8-SOIC package dimensions and pinout. PCB layouts designed for MAX4541ESA-T accommodate MAX4541ESA+T and ISL84541IBZ without modification. Component placement and soldering processes remain unchanged.

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