X9315WMIT2 Equivalent & Substitute Parts

Part Overview

The X9315WMIT2 is a digital potentiometer manufactured by Renesas Electronics Corporation, featuring 10kΩ resistance with 32 taps and Up/Down (U/D, INC, CS) interface control. This component belongs to the XDCP™ series and is classified as obsolete. Due to its obsolete status and limited availability relative to active alternatives, identifying equivalent substitute parts is essential for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Resistance (Ohms)	10k
Number of Taps	32
Interface Type	Up/Down (U/D, INC, CS)
Memory Type	Non-Volatile
Voltage - Supply	5V
Mounting Type	Surface Mount
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Operating Temperature Range	-40°C ~ 85°C
Tolerance	±20%
Temperature Coefficient (Typ)	±300ppm/°C

Substitute Part Grouping Explanation

Substitute parts for the X9315WMIT2 are identified based on strict electrical and mechanical parameter matching:

Critical Parameters for Substitution:

Resistance value: 10kΩ (exact match required)
Number of taps: 32 (exact match required)
Interface type: Up/Down (U/D, INC, CS) (exact match required)
Memory type: Non-Volatile (exact match required)
Supply voltage: 5V (exact match required)
Package type: 8-MSOP (exact match required)
Operating temperature range: -40°C ~ 85°C (exact match required)

Direct Substitute (X9315WMIZT1): Identical part number base (X9315) with matching packaging format (Tape & Reel). All electrical and mechanical parameters are identical. Primary difference is product status (Active vs. Obsolete) and packaging configuration.

Parametric Equivalent (X9313WMIZT1): Shares the same manufacturer, series, interface, package, and supply voltage. Differs in base product number (X9313 vs. X9315) and wiper resistance specification (40Ω vs. 200Ω typical). This represents a parametric alternative within the same product family.

Parameter Comparison

Parameter	X9315WMIT2 (Main)	X9315WMIZT1 (Direct Substitute)	X9313WMIZT1 (Parametric Equivalent)
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation	Renesas Electronics Corporation
Series	XDCP™	XDCP™	XDCP™
Resistance (Ohms)	10k	10k	10k
Number of Taps	32	32	32
Interface Type	Up/Down (U/D, INC, CS)	Up/Down (U/D, INC, CS)	Up/Down (U/D, INC, CS)
Memory Type	Non-Volatile	Non-Volatile	Non-Volatile
Voltage - Supply	5V	5V	5V
Tolerance	±20%	±20%	±20%
Temperature Coefficient (Typ)	±300ppm/°C	±300ppm/°C	±300ppm/°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package / Case	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	2 (1 Year)	2 (1 Year)
Resistance - Wiper (Ohms) (Typ)	200	200	40

Engineering Selection Recommendations

X9315WMIZT1 (Direct Substitute): This part is the primary recommended substitute for the X9315WMIT2. It maintains identical electrical and mechanical specifications while offering Active product status and improved compliance certifications (ROHS3 Compliant vs. RoHS non-compliant). The packaging format differs (Tape & Reel vs. standard packaging), which may affect procurement and handling procedures. Moisture sensitivity level is improved (MSL 2 vs. MSL 3), providing extended shelf life and reduced moisture-related risk during storage and assembly.

X9313WMIZT1 (Parametric Equivalent): This part shares all critical functional parameters with the X9315WMIT2 except for wiper resistance (40Ω vs. 200Ω typical). It is suitable only for applications where wiper resistance specification is not a design constraint. This part also offers Active product status and ROHS3 compliance. Selection of this alternative requires confirmation that the lower wiper resistance does not impact circuit performance or signal integrity requirements.

Frequently Asked Questions (FAQ)

Q: Can X9315WMIZT1 be used as a direct replacement for X9315WMIT2?

A: Yes. X9315WMIZT1 is electrically and mechanically identical to X9315WMIT2. The primary differences are product status (Active vs. Obsolete), packaging format (Tape & Reel), and improved compliance certifications. No circuit modifications are required.

Q: What is the difference between X9315WMIZT1 and X9313WMIZT1?

A: Both parts share the same 10kΩ resistance, 32-tap configuration, and Up/Down interface. The key difference is wiper resistance: X9315WMIZT1 has 200Ω typical wiper resistance, while X9313WMIZT1 has 40Ω typical wiper resistance. This affects signal path impedance and may impact applications sensitive to wiper loading effects.

Q: Why is the X9315WMIT2 listed as obsolete?

A: The X9315WMIT2 has reached end-of-life status with Renesas Electronics Corporation. Active alternatives within the same product family are available to support ongoing design requirements and production needs.

Q: Does packaging format affect circuit performance?

A: No. Packaging format (standard vs. Tape & Reel) does not affect electrical performance. It impacts procurement, storage, and assembly handling procedures. Tape & Reel packaging is standard for automated assembly processes.

Q: Are there compliance differences between the main part and substitutes?

A: Yes. X9315WMIT2 is RoHS non-compliant with MSL 3 rating. Both X9315WMIZT1 and X9313WMIZT1 are ROHS3 Compliant with MSL 2 rating, providing improved environmental compliance and extended moisture protection.

Q: Can X9313WMIZT1 be used in all applications requiring X9315WMIT2?

A: X9313WMIZT1 is suitable only for applications where the 40Ω wiper resistance does not create circuit compatibility issues. Applications with strict wiper resistance requirements should use X9315WMIZT1 instead.

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