X9319WS8 Digital Potentiometer - Equivalent & Substitute Parts

Part Overview

The X9319WS8 is a 10kΩ digital potentiometer manufactured by Renesas Electronics Corporation, featuring 100 taps with Up/Down (U/D, INC, CS) interface control in an 8-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The part operates on 5V supply with non-volatile memory and linear taper characteristics suitable for precision analog signal adjustment applications.

Substiute Parts

X9319WS8

Renesas Electronics CorporationIn Stock: 782X9319WS8 Datasheet

Current PartRFQ

X9317WS8Z

Renesas Electronics CorporationIn Stock: 2212X9317WS8Z Datasheet

Parametric EquivalentRFQ

X9318WS8Z

Renesas Electronics CorporationIn Stock: 1168X9318WS8Z Datasheet

Parametric EquivalentRFQ

X9C103SZ

Renesas Electronics CorporationIn Stock: 1995X9C103SZ Datasheet

Parametric EquivalentRFQ

CAT5113VI-01-GT3

onsemiIn Stock: 5173CAT5113VI-01-GT3 Datasheet

SimilarRFQ

DS1804Z-010+

Analog Devices Inc./Maxim IntegratedIn Stock: 5256DS1804Z-010+ Datasheet

SimilarRFQ

DS1804Z-010+T&R

Analog Devices Inc./Maxim IntegratedIn Stock: 4010DS1804Z-010+T&R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the X9319WS8 is determined by strict equivalence across the following critical parameters: resistance value (10kΩ), number of taps (100), interface protocol (Up/Down with U/D, INC, CS signals), package type (8-SOIC), and memory type (non-volatile). Parts are grouped into two categories:

Parametric Equivalents maintain all critical electrical and mechanical specifications, differing only in product status (active vs. obsolete) and compliance certifications. These parts are direct functional replacements.

Similar Parts share the same package, interface, and tap count but differ in resistance value or supply voltage range. These require circuit evaluation before substitution.

Parameter Comparison

Engineering Selection Recommendations

Preferred Parametric Equivalents (Direct Replacements):

X9318WS8Z and X9C103SZ are the primary recommended substitutes for the X9319WS8. Both parts are manufactured by Renesas Electronics, maintain identical 10kΩ resistance, 100-tap configuration, and 5V supply specification. Both are active products with ROHS3 compliance, addressing the obsolescence and regulatory status of the original part. X9318WS8Z is available in tube packaging with 1087 units in stock, while X9C103SZ is available in tube packaging with 1900 units in stock.

X9317WS8Z is functionally equivalent with identical electrical specifications but features a wiper resistance of 200Ω compared to the original 40Ω. This difference is acceptable in applications where wiper impedance does not affect circuit performance. This part is active and ROHS3 compliant with 2193 units in stock.

Alternative Equivalents (Same Resistance, Different Supply Range):

DS1804Z-010+ and DS1804Z-010+T&R, manufactured by Analog Devices Inc./Maxim Integrated, provide 10kΩ resistance with 100 taps and identical interface specification. These parts accept a wider supply voltage range (2.7V ~ 5.5V) compared to the fixed 5V requirement of the X9319WS8, and support extended operating temperature (-40°C ~ 85°C). Both are active products with ROHS3 compliance. DS1804Z-010+ is available in tube packaging (5194 units in stock), while DS1804Z-010+T&R is available in cut tape and Digi-Reel packaging (3900 units in stock).

Not Recommended for Direct Substitution:

CAT5113VI-01-GT3 (onsemi) differs in resistance value (1kΩ vs. 10kΩ) and is obsolete. This part is suitable only for applications requiring 1kΩ potentiometer functionality and requires complete circuit re-evaluation.

Frequently Asked Questions (FAQ)

Q: Can I use X9317WS8Z as a direct replacement for X9319WS8?

A: X9317WS8Z is functionally equivalent in all critical parameters except wiper resistance (200Ω vs. 40Ω). Direct substitution is acceptable if circuit design does not depend on wiper impedance specifications. Verify wiper loading effects in your specific application before implementation.

Q: What is the difference between DS1804Z-010+ and DS1804Z-010+T&R?

A: Both parts are electrically identical. The difference is packaging format: DS1804Z-010+ is supplied in tube packaging, while DS1804Z-010+T&R is supplied in cut tape and Digi-Reel format. Select based on your assembly process requirements.

Q: Why does the X9319WS8 show as obsolete?

A: The X9319WS8 is classified as obsolete by Renesas Electronics. Active equivalent parts (X9318WS8Z, X9C103SZ) are available to ensure design continuity and long-term supply security.

Q: Can I substitute the CAT5113VI-01-GT3 for the X9319WS8?

A: No. The CAT5113VI-01-GT3 has a 1kΩ resistance value compared to the 10kΩ specification of the X9319WS8. This represents a 10:1 difference in potentiometer range and requires complete circuit redesign. This part is suitable only for applications specifically requiring 1kΩ potentiometer functionality.

Q: What are the supply voltage considerations when switching to DS1804Z devices?

A: The DS1804Z series accepts 2.7V ~ 5.5V supply, compared to the fixed 5V specification of the X9319WS8. If your circuit supplies exactly 5V, the DS1804Z devices are compatible. If your circuit supplies voltages below 4.75V or above 5.25V, verify that the DS1804Z operating range accommodates your supply specification.

Q: Are all substitute parts RoHS compliant?

A: The X9319WS8 is RoHS non-compliant. All recommended substitute parts (X9317WS8Z, X9318WS8Z, X9C103SZ, DS1804Z-010+, DS1804Z-010+T&R) are ROHS3 compliant. The CAT5113VI-01-GT3 is also ROHS3 compliant but is not recommended due to resistance value mismatch.

Q: What is the package compatibility across all parts?

A: All listed parts use 8-SOIC (0.154", 3.90mm Width) surface mount packaging. PCB footprints and assembly processes are compatible across all parts without modification.