X9C104PIZ Digital Potentiometer Equivalent & Substitute Parts

Part Overview

The X9C104PIZ is a digital potentiometer manufactured by Renesas Electronics Corporation, featuring 100k Ohm resistance with 100 taps and Up/Down (U/D, INC, CS) interface control. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and production continuity. The part operates across -40°C to 85°C with 5V supply voltage and non-volatile memory retention.

Substiute Parts

X9C104PIZ

Renesas Electronics CorporationIn Stock: 2494X9C104PIZ Datasheet

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X9C104SIZ

Renesas Electronics CorporationIn Stock: 1891X9C104SIZ Datasheet

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DS1804-100+

Analog Devices Inc./Maxim IntegratedIn Stock: 3808DS1804-100+ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the X9C104PIZ are identified based on strict electrical and mechanical parameter alignment. The critical substitution criteria are:

• Resistance value: 100k Ohm (exact match required)
• Number of taps: 100 (exact match required)
• Interface protocol: Up/Down (U/D, INC, CS) (exact match required)
• Memory type: Non-Volatile (exact match required)
• Supply voltage compatibility: 5V operation (primary requirement)
• Tolerance: ±20% (exact match required)
• Operating temperature range: -40°C ~ 85°C (exact match required)

Two substitute parts meet these criteria with variations in packaging and product status:

1. X9C104SIZ - Same electrical specifications with surface mount packaging (8-SOIC), active product status
2. DS1804-100+ - Same electrical specifications with through-hole packaging (8-PDIP), active product status, extended supply voltage range

Parameter Comparison

Engineering Selection Recommendations

X9C104SIZ Selection: This Renesas part maintains identical electrical specifications to the X9C104PIZ with active product status and ROHS3 compliance. Selection is appropriate for designs requiring surface mount technology. PCB layout modifications are necessary due to package transition from 8-DIP to 8-SOIC.

DS1804-100+ Selection: This Analog Devices/Maxim Integrated part provides through-hole compatibility matching the original X9C104PIZ package footprint. Extended supply voltage range (2.7V ~ 5.5V) provides additional operational flexibility. Temperature coefficient specification (750ppm/°C) differs from the original (±300ppm/°C), requiring evaluation against application precision requirements. Active product status and ROHS3 compliance support long-term availability.

Both substitutes maintain non-volatile memory, identical tap count, and interface protocol compatibility. Selection between X9C104SIZ and DS1804-100+ depends on mounting technology requirements and temperature coefficient tolerance specifications.

Frequently Asked Questions (FAQ)

Q: Can X9C104SIZ directly replace X9C104PIZ in existing through-hole PCB designs?

A: No. X9C104SIZ uses 8-SOIC surface mount packaging while X9C104PIZ uses 8-DIP through-hole packaging. PCB redesign and component placement modification are required. For through-hole compatibility, DS1804-100+ is the appropriate selection.

Q: What are the key electrical differences between DS1804-100+ and X9C104PIZ?

A: Both parts share identical 100k resistance, 100 taps, Up/Down interface, and non-volatile memory. DS1804-100+ specifies 750ppm/°C temperature coefficient compared to X9C104PIZ at ±300ppm/°C. DS1804-100+ supports extended supply voltage range (2.7V ~ 5.5V) versus X9C104PIZ at 5V fixed.

Q: Are all three parts ROHS3 compliant?

A: Yes. X9C104PIZ, X9C104SIZ, and DS1804-100+ are all ROHS3 compliant with MSL rating of 1 (Unlimited).

Q: Which substitute part maintains the closest electrical performance to the obsolete X9C104PIZ?

A: X9C104SIZ maintains identical electrical specifications including temperature coefficient (±300ppm/°C) and supply voltage (5V). The only difference is packaging format (8-SOIC surface mount versus 8-DIP through-hole).

Q: Can DS1804-100+ operate at voltages below 5V?

A: Yes. DS1804-100+ supports supply voltage range of 2.7V ~ 5.5V, enabling operation at reduced voltages. X9C104PIZ and X9C104SIZ are specified for 5V operation.

Q: Are interface pin configurations identical across all three parts?

A: Yes. All three parts use identical Up/Down (U/D, INC, CS) interface protocol and 8-pin configuration, ensuring software and firmware compatibility.