ISL43141IB Equivalent & Substitute Parts

Part Overview

The ISL43141IB is a 4-circuit SPST-NO analog switch manufactured by Renesas Electronics Corporation, housed in a 16-SOIC surface mount package. This component operates across a single supply voltage range of 2.7V to 12V or dual supply of ±2.6V to 6V, with a maximum on-state resistance of 65Ohm and switching times of 80ns (Ton) and 30ns (Toff). The ISL43141IB is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. Substitute components must maintain functional compatibility across the specified electrical parameters while accommodating modern RoHS compliance requirements.

Key Parameters

Parameter	ISL43141IB Value
Switch Circuit	SPST - NO
Number of Circuits	4
Multiplexer/Demultiplexer Circuit	1:1
On-State Resistance (Max)	65Ohm
Channel-to-Channel Matching (ΔRon)	2Ohm
Voltage - Supply, Single (V+)	2.7V ~ 12V
Voltage - Supply, Dual (V±)	±2.6V ~ 6V
Switch Time (Ton, Toff) (Max)	80ns, 30ns
Charge Injection	1pC
Channel Capacitance (CS(off), CD(off))	7pF, 7pF
Current - Leakage (IS(off)) (Max)	1nA
Crosstalk	-90dB @ 100kHz
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	16-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the ISL43141IB is determined by the following critical parameters: switch circuit topology (SPST-NO), number of circuits (4), multiplexer configuration (1:1), package type (16-SOIC), and mounting method (surface mount). On-state resistance, supply voltage ranges, switching times, and leakage current are secondary selection criteria that define performance compatibility within application-specific requirements.

Substitute parts are grouped into two categories:

Direct Equivalent (Packaging Variant): ISL43141IBZ maintains identical electrical specifications and base product number but differs in packaging format (Tube vs. standard) and RoHS compliance status.

Functional Equivalents (Electrical Performance Variants): Parts from Analog Devices Inc./Maxim Integrated (MAX series), Advanced Linear Devices Inc. (ALD series), and Vishay Siliconix (DG series) provide 4-circuit SPST-NO switching functionality in 16-SOIC packages with varying on-state resistance, supply voltage ranges, and switching characteristics. Selection depends on application voltage requirements, speed performance, and resistance specifications.

Parameter Comparison

Part Number	Manufacturer	Switch Circuit	Circuits	On-State Resistance (Max)	V+ Supply	V± Supply	Ton/Toff (Max)	Package	Product Status	RoHS Status
ISL43141IB	Renesas	SPST - NO	4	65Ohm	2.7V ~ 12V	±2.6V ~ 6V	80ns, 30ns	16-SOIC	Obsolete	Non-compliant
ISL43141IBZ	Renesas	SPST - NO	4	65Ohm	2.7V ~ 12V	±2.6V ~ 6V	80ns, 30ns	16-SOIC	Obsolete	ROHS3 Compliant
MAX4552ESE+	Analog Devices/Maxim	SPST - NO	4	120Ohm	2V ~ 12V	±2V ~ 6V	110ns, 90ns	16-SOIC	Active	ROHS3 Compliant
MAX4712ESE+	Analog Devices/Maxim	SPST - NO	4	25Ohm	2.7V ~ 11V	±2.7V ~ 5.5V	125ns, 80ns	16-SOIC	Active	ROHS3 Compliant
MAX392CSE+	Analog Devices/Maxim	SPST - NO	4	35Ohm	3V ~ 15V	±3V ~ 8V	130ns, 75ns	16-SOIC	Active	ROHS3 Compliant
MAX392CSE+T	Analog Devices/Maxim	SPST - NO	4	35Ohm	3V ~ 15V	±3V ~ 8V	130ns, 75ns	16-SOIC	Active	ROHS3 Compliant
MAX4512ESE+	Analog Devices/Maxim	SPST - NO	4	160Ohm	9V ~ 36V	±4.5V ~ 18V	500ns, 400ns	16-SOIC	Active	ROHS3 Compliant
MAX4512ESE+T	Analog Devices/Maxim	SPST - NO	4	160Ohm	9V ~ 36V	±4.5V ~ 18V	500ns, 400ns	16-SOIC	Active	ROHS3 Compliant
ALD4202MSCL	Advanced Linear Devices	SPST - NO	4	135Ohm	3V ~ 12V	±1.5V ~ 6V	240ns, 130ns	16-SOIC	Active	ROHS3 Compliant
DG455EY-T1-E3	Vishay Siliconix	SPST - NO	4	5.3Ohm	12V ~ 36V	±5V ~ 15V	118ns, 97ns	16-SOIC	Active	ROHS3 Compliant
MAX4512CSE+	Analog Devices/Maxim	SPST - NO	4	160Ohm	9V ~ 36V	±4.5V ~ 18V	500ns, 400ns	16-SOIC	Active	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Obsolete to Active): ISL43141IBZ is the primary direct equivalent, offering identical electrical performance with ROHS3 compliance and active product status. This part maintains the same 65Ohm on-state resistance, supply voltage ranges, and switching characteristics as the original ISL43141IB.

For Low-Voltage Applications (2V ~ 12V Supply): MAX4552ESE+ provides 120Ohm on-state resistance with supply voltage compatibility from 2V to 12V single supply or ±2V to 6V dual supply. This part maintains the -40°C to 85°C operating temperature range and is ROHS3 compliant with active product status.

For Low-Resistance Applications: MAX4712ESE+ offers 25Ohm on-state resistance with 2.7V to 11V single supply operation, suitable for applications requiring minimal signal attenuation. DG455EY-T1-E3 provides the lowest on-state resistance at 5.3Ohm but requires higher supply voltages (12V ~ 36V).

For Higher Supply Voltage Applications: MAX4512ESE+, MAX4512ESE+T, and MAX4512CSE+ support 9V to 36V single supply operation with 160Ohm on-state resistance. These parts are suitable for industrial and automotive applications requiring extended voltage ranges.

For Moderate Resistance with Extended Voltage Range: MAX392CSE+ and MAX392CSE+T provide 35Ohm on-state resistance with 3V to 15V single supply capability, offering a balance between resistance and voltage flexibility.

All recommended substitutes are ROHS3 compliant with active product status, ensuring long-term availability and regulatory compliance for new designs.

Frequently Asked Questions (FAQ)

Q: Can ISL43141IBZ be used as a direct replacement for ISL43141IB?

A: Yes. ISL43141IBZ maintains identical electrical specifications including 65Ohm on-state resistance, 4-circuit SPST-NO configuration, 2.7V to 12V single supply range, and 16-SOIC package. The primary differences are packaging format (Tube) and RoHS compliance status (ROHS3 compliant vs. non-compliant).

Q: What determines compatibility between ISL43141IB and substitute parts?

A: Compatibility is determined by switch circuit topology (SPST-NO), number of circuits (4), 1:1 multiplexer configuration, 16-SOIC package, and surface mount capability. Secondary compatibility factors include on-state resistance, supply voltage ranges, switching times, and operating temperature range. Application-specific requirements determine which substitute is appropriate.

Q: Can MAX4512ESE+ replace ISL43141IB in all applications?

A: MAX4512ESE+ is functionally compatible as a 4-circuit SPST-NO switch in 16-SOIC package but has different electrical characteristics: 160Ohm on-state resistance (vs. 65Ohm), 9V to 36V supply range (vs. 2.7V to 12V), and 500ns/400ns switching times (vs. 80ns/30ns). Substitution is valid only for applications where these differences are acceptable.

Q: What is the difference between MAX4512ESE+ and MAX4512ESE+T?

A: Both parts are electrically identical with 160Ohm on-state resistance and identical performance specifications. The primary difference is packaging: MAX4512ESE+ is supplied in Tube format, while MAX4512ESE+T is supplied in Tape & Reel (TR) format. Selection depends on production volume and assembly requirements.

Q: Why does DG455EY-T1-E3 have such low on-state resistance?

A: DG455EY-T1-E3 is designed for high-voltage applications (12V ~ 36V supply range) and achieves 5.3Ohm on-state resistance through advanced semiconductor design. This part is suitable for applications requiring minimal signal loss at higher operating voltages but is not compatible with the ISL43141IB's lower voltage range (2.7V ~ 12V).

Q: Are all substitute parts RoHS compliant?

A: All recommended substitute parts except the original ISL43141IB are ROHS3 compliant. ISL43141IBZ and all Analog Devices/Maxim, Advanced Linear Devices, and Vishay Siliconix alternatives meet current RoHS requirements for new designs.

Q: Can I use MAX392CSE+ in place of ISL43141IB for low-voltage applications?

A: MAX392CSE+ is compatible for 16-SOIC 4-circuit SPST-NO switching but operates at 3V minimum supply (vs. 2.7V for ISL43141IB) and has 35Ohm on-state resistance (vs. 65Ohm). Substitution is valid if the application can tolerate these parameter differences and the 3V minimum supply voltage is acceptable.

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