X9C102ST1 Equivalent & Substitute Parts

Part Overview

The X9C102ST1 is a digital potentiometer manufactured by Renesas Electronics Corporation, featuring 1kΩ resistance with 100 taps and an Up/Down (U/D, INC, CS) interface in an 8-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production support. The part operates on 5V supply with non-volatile memory and linear taper configuration, suitable for applications requiring programmable resistance adjustment.

Substiute Parts

X9C102ST1

Renesas Electronics CorporationIn Stock: 828X9C102ST1 Datasheet

Current PartRFQ

X9C102SZT1

Renesas Electronics CorporationIn Stock: 890X9C102SZT1 Datasheet

DirectRFQ

CAT5113VI-01-GT3

onsemiIn Stock: 5173CAT5113VI-01-GT3 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the X9C102ST1 is determined by strict equivalence across the following critical parameters:

• Resistance value: 1kΩ
• Number of taps: 100
• Interface protocol: Up/Down (U/D, INC, CS)
• Memory type: Non-Volatile
• Package type: 8-SOIC
• Mounting configuration: Surface Mount
• Taper characteristic: Linear
• Number of circuits: 1

The X9C102SZT1 qualifies as a direct equivalent, differing only in packaging format (Tape & Reel versus bulk) and product status (Active versus Obsolete). The CAT5113VI-01-GT3 qualifies as a similar substitute, maintaining all core functional parameters while offering extended supply voltage range (2.5V ~ 6V versus 5V) and broader operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C).

Parameter Comparison

Engineering Selection Recommendations

For new designs and production transitions, the X9C102SZT1 is the primary recommended substitute. It maintains identical electrical and mechanical specifications while offering Active product status and ROHS3 compliance, eliminating obsolescence risk and regulatory concerns associated with the X9C102ST1.

The CAT5113VI-01-GT3 serves as an alternative substitute when extended operating temperature range (-40°C ~ 85°C) or flexible supply voltage operation (2.5V ~ 6V) is required. This part also provides ROHS3 compliance. However, the CAT5113VI-01-GT3 carries Obsolete product status, limiting its suitability for long-term production commitments.

Selection between X9C102SZT1 and CAT5113VI-01-GT3 depends on application thermal and voltage requirements. Both parts maintain functional equivalence in core digital potentiometer operation within their respective operating ranges.

Frequently Asked Questions (FAQ)

Q: Can X9C102SZT1 directly replace X9C102ST1 in existing designs?

A: Yes. The X9C102SZT1 maintains identical electrical specifications, interface protocol, package dimensions, and functional characteristics. The only difference is packaging format (Tape & Reel versus bulk) and product status (Active versus Obsolete).

Q: What are the key differences between X9C102SZT1 and CAT5113VI-01-GT3?

A: Both parts share identical resistance value, tap count, interface type, and package. The CAT5113VI-01-GT3 offers extended supply voltage range (2.5V ~ 6V versus 5V) and broader operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C). The CAT5113VI-01-GT3 exhibits lower temperature coefficient (300ppm/°C versus ±600ppm/°C).

Q: Are there compliance differences between these parts?

A: Yes. X9C102ST1 is RoHS non-compliant. Both X9C102SZT1 and CAT5113VI-01-GT3 are ROHS3 compliant. All three parts are REACH Unaffected and classified as EAR99 for export control purposes.

Q: Does package format affect electrical performance?

A: No. Tape & Reel (TR) and Cut Tape (CT) packaging formats do not affect electrical specifications or functional performance. Packaging selection depends on assembly process requirements and inventory management.

Q: What is the significance of product status (Active versus Obsolete)?

A: Active status indicates ongoing manufacturer support, availability, and potential design improvements. Obsolete status indicates discontinued production. For long-term production, Active status parts provide supply chain stability.

Q: Can CAT5113VI-01-GT3 operate at 5V supply like the original X9C102ST1?

A: Yes. The CAT5113VI-01-GT3 supply voltage range is 2.5V ~ 6V, which encompasses the 5V operating point of the X9C102ST1.