X9401WS24Z Digital Potentiometer Equivalent & Substitute Parts

Part Overview

The X9401WS24Z is a digital potentiometer manufactured by Renesas Electronics Corporation, classified as a Data Acquisition component. This 10kΩ, 4-circuit, 64-tap device features an SPI interface and non-volatile memory for programmable resistance control in surface-mount applications.

The X9401WS24Z is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

X9401WS24Z

Renesas Electronics CorporationIn Stock: 942X9401WS24Z Datasheet

Current PartRFQ

X9401WS24IZ-2.7

Renesas Electronics CorporationIn Stock: 2463X9401WS24IZ-2.7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the X9401WS24Z is determined by strict equivalence across the following critical parameters:

Resistance value (10kΩ), number of circuits (4), number of taps (64), interface protocol (SPI), memory type (non-volatile), taper characteristic (linear), package format (24-SOIC), wiper resistance (150Ω typical), tolerance (±20%), temperature coefficient (±300ppm/°C), and compliance certifications (ROHS3, REACH Unaffected).

The X9401WS24IZ-2.7 meets all these criteria and is therefore a direct functional substitute. The primary distinction is product status: the substitute part is active in production, whereas the main part is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The X9401WS24IZ-2.7 is the direct substitute for the X9401WS24Z. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

The substitute part offers extended supply availability as an active production component. The X9401WS24IZ-2.7 provides a wider supply voltage range (2.7V ~ 5.5V versus 5V fixed) and extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C), making it suitable for applications requiring broader environmental tolerance.

For designs currently specified for 5V operation within 0°C to 70°C, the substitute part operates within these original constraints while providing additional operational headroom. Packaging, electrical function, and interface characteristics remain identical.

Frequently Asked Questions (FAQ)

Q: Can the X9401WS24IZ-2.7 directly replace the X9401WS24Z in existing designs?

A: Yes. Both parts share identical resistance value (10kΩ), circuit count (4), tap resolution (64), interface protocol (SPI), package format (24-SOIC), and electrical characteristics. The substitute operates within the original design specifications while offering extended voltage and temperature ranges.

Q: What are the key differences between these parts?

A: The X9401WS24Z operates at fixed 5V supply with 0°C to 70°C temperature range. The X9401WS24IZ-2.7 accepts 2.7V to 5.5V supply voltage and operates across -40°C to 85°C. The X9401WS24Z is obsolete; the X9401WS24IZ-2.7 is in active production.

Q: Are there packaging differences?

A: No. Both parts use identical 24-SOIC surface-mount packaging with 0.295" (7.50mm) width. PCB footprints and assembly processes remain unchanged.

Q: Do compliance certifications differ?

A: No. Both parts carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements identically.

Q: What supply voltage should be used with the substitute part?

A: The X9401WS24IZ-2.7 accepts 2.7V to 5.5V. Designs originally specified for 5V operation remain compatible. For new designs, any voltage within this range is acceptable.