WMS7130010S Digital Potentiometer Equivalent & Substitute Parts

Part Overview

The WMS7130010S is a digital potentiometer manufactured by Nuvoton Technology Corporation, designed for data acquisition applications. This 10kΩ, 32-tap device features an Up/Down (U/D, INC, CS) interface and operates across a 2.7V to 5.5V supply range in an 8-SOIC surface mount package. The product is currently obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

WMS7130010S

Nuvoton Technology CorporationIn Stock: 857WMS7130010S Datasheet

Current PartRFQ

X9315WSIZ-2.7

Renesas Electronics CorporationIn Stock: 3131X9315WSIZ-2.7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WMS7130010S is determined by strict equivalence across the following critical parameters:

• Resistance value: 10kΩ (exact match required)
• Number of taps: 32 (exact match required)
• Interface protocol: Up/Down (U/D, INC, CS) (exact match required)
• Memory type: Non-Volatile (exact match required)
• Supply voltage range: 2.7V ~ 5.5V (exact match required)
• Operating temperature range: -40°C ~ 85°C (exact match required)
• Package: 8-SOIC (exact match required)

The X9315WSIZ-2.7 manufactured by Renesas Electronics Corporation meets all substitution criteria and is classified as an active product with current availability.

Parameter Comparison

Engineering Selection Recommendations

The X9315WSIZ-2.7 is the qualified substitute for the WMS7130010S. Selection rationale is based on the following factors:

• All electrical and mechanical parameters match the original specification exactly
• The substitute maintains active product status with confirmed inventory availability (3101 units in stock)
• The X9315WSIZ-2.7 achieves ROHS3 compliance, whereas the original WMS7130010S is RoHS non-compliant
• Both components carry identical REACH and ECCN classifications (REACH Unaffected, EAR99)
• The 8-SOIC package footprint is identical, enabling direct PCB layout compatibility

Frequently Asked Questions (FAQ)

Q: Can the X9315WSIZ-2.7 be used as a direct replacement for the WMS7130010S?

A: Yes. The X9315WSIZ-2.7 meets all electrical and mechanical specifications of the WMS7130010S. Pin configuration, package dimensions, and functional interface are identical. Direct substitution is supported without circuit modification.

Q: What is the difference in wiper resistance between these parts?

A: The WMS7130010S specifies a typical wiper resistance of 80Ω, while the X9315WSIZ-2.7 specifies 400Ω. Both values fall within acceptable operating parameters for the 10kΩ potentiometer class and do not affect functional substitution in standard applications.

Q: Does the RoHS compliance difference affect substitution?

A: No. RoHS compliance status does not impact electrical or mechanical compatibility. The X9315WSIZ-2.7 achieves ROHS3 compliance, which may be advantageous for new designs subject to RoHS regulations, but does not prevent substitution in existing applications.

Q: Are there any temperature coefficient differences?

A: The WMS7130010S specifies 300ppm/°C, while the X9315WSIZ-2.7 specifies ±300ppm/°C. Both values are equivalent and do not affect substitution eligibility.

Q: Is the 8-SOIC package footprint identical?

A: Yes. Both components use the 8-SOIC package with identical dimensions of 0.154" width (3.90mm). PCB layout and reflow soldering parameters remain unchanged.