IH5043C/D Equivalent & Substitute Parts

Part Overview

The IH5043C/D is a 2-circuit IC switch with SPDT (Single Pole Double Throw) configuration and 80Ohm on-state resistance, manufactured by Analog Devices Inc./Maxim Integrated. This die-form component is designed for interface applications requiring low-impedance analog switching. The product is currently obsolete, making identification of compatible substitutes essential for ongoing system support and new design implementations.

Substiute Parts

IH5043C/D

Analog Devices Inc./Maxim IntegratedIn Stock: 916IH5043C/D Datasheet

Current PartRFQ

IH5043CWE+

Analog Devices Inc./Maxim IntegratedIn Stock: 1576IH5043CWE+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IH5043C/D is determined by electrical and mechanical parameter equivalence within the interface switch category. The primary substitution candidate maintains identical functional specifications: SPDT switch circuit, 2:1 multiplexer configuration, 2 circuits, 80Ohm on-state resistance, 5Ohm channel matching, ±4.5V ~ 18V dual supply voltage, 400ns/200ns switching times, and 5nA maximum leakage current. The key differentiator is packaging format: the original IH5043C/D is supplied as a die, while the substitute IH5043CWE+ is packaged in 16-SOIC form factor. Both maintain identical electrical performance and compliance certifications (ROHS3, MSL 1, REACH Unaffected).

Parameter Comparison

Engineering Selection Recommendations

The IH5043CWE+ is the manufacturer-recommended substitute for the obsolete IH5043C/D. Both components share identical electrical specifications and compliance certifications (ROHS3 Compliant, MSL 1, REACH Unaffected). The primary consideration for selection is packaging format: the IH5043CWE+ is supplied in 16-SOIC package rather than die form, requiring PCB layout and assembly process modifications. The active product status of IH5043CWE+ ensures ongoing availability and manufacturing support, addressing the obsolescence of the original die-form component.

Frequently Asked Questions (FAQ)

Q: Can IH5043CWE+ directly replace IH5043C/D in existing designs?

A: Electrical substitution is complete; all functional parameters are identical. Physical substitution requires PCB redesign due to package format change from die to 16-SOIC.

Q: What are the key electrical parameters that define substitution compatibility?

A: SPDT switch circuit, 2:1 multiplexer configuration, 2 circuits, 80Ohm on-state resistance, 5Ohm channel matching, ±4.5V ~ 18V dual supply voltage, 400ns/200ns switching times, and 5nA maximum leakage current must remain constant.

Q: Are compliance certifications maintained in the substitute part?

A: Yes. Both IH5043C/D and IH5043CWE+ maintain ROHS3 compliance, MSL 1 rating, and REACH Unaffected status.

Q: What is the primary difference between these parts?

A: The IH5043C/D is supplied as a bare die, while IH5043CWE+ is packaged in 16-SOIC form factor. Electrical performance is identical.

Q: Why is IH5043C/D obsolete while IH5043CWE+ remains active?

A: Die-form components have limited market demand compared to packaged solutions. The 16-SOIC package format of IH5043CWE+ provides broader application compatibility and manufacturing accessibility.