PI5A100WEX Equivalent & Substitute Parts

Part Overview

The PI5A100WEX is a 4-circuit SPDT analog switch manufactured by Diodes Incorporated, designed for general-purpose signal routing and multiplexing applications. This 16-SOIC surface mount device operates from a single 2V to 6V supply and delivers 10Ohm on-state resistance with fast switching characteristics suitable for audio, video, and general analog signal switching.

The product maintains Active status with 9115 units in current inventory. Substitute parts are identified based on matching functional architecture (4-circuit SPDT 2:1 multiplexer configuration), identical package format (16-SOIC), and compatible electrical operating parameters. Alternative sources become necessary for supply chain continuity, design flexibility, or specific application requirements.

Substiute Parts

PI5A100WEX

Diodes IncorporatedIn Stock: 9130PI5A100WEX Datasheet

Current PartRFQ

TS3A5018D

Texas InstrumentsIn Stock: 4383TS3A5018D Datasheet

MFR RecommendedRFQ

TS3A5018DR

Texas InstrumentsIn Stock: 19121TS3A5018DR Datasheet

MFR RecommendedRFQ

TS5L100D

Texas InstrumentsIn Stock: 1066TS5L100D Datasheet

MFR RecommendedRFQ

TS5L100DR

Texas InstrumentsIn Stock: 1643TS5L100DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PI5A100WEX is determined by the following core parameters:

Primary Matching Criteria:

• Switch circuit type: SPDT
• Number of circuits: 4
• Multiplexer configuration: 2:1
• Package format: 16-SOIC surface mount
• On-state resistance: 10Ohm maximum

Secondary Compatibility Factors:

• Supply voltage range overlap with 2V ~ 6V specification
• Operating temperature range: -40°C ~ 85°C minimum
• RoHS3 compliance and MSL rating

Substitute parts are grouped into two categories based on electrical performance alignment:

Group 1 - Direct Functional Equivalents (TS3A5018D, TS3A5018DR): These Texas Instruments parts maintain identical switch architecture, circuit count, and on-state resistance. They operate within a narrower supply range (1.65V ~ 3.6V) but deliver superior performance metrics including faster switching times, lower charge injection, and reduced crosstalk. Both are RoHS3 compliant with identical package specifications.

Group 2 - Networking-Optimized Variants (TS5L100D, TS5L100DR): These Texas Instruments parts share the same 4-circuit SPDT 2:1 architecture and 16-SOIC package but are optimized for Ethernet applications. They feature higher on-state resistance (19Ohm maximum) and operate from a fixed 6V ~ 6.5V supply range with extended -3dB bandwidth (350MHz). These are suitable only for applications where the narrower supply range and higher resistance are acceptable.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (TS3A5018DR Preferred):

TS3A5018DR is the recommended primary substitute. It maintains Active product status with 19100 units in inventory, ensuring long-term availability. This part delivers superior electrical performance (faster switching, lower charge injection, reduced crosstalk) while preserving the 10Ohm on-state resistance and 16-SOIC package. The narrower supply range (1.65V ~ 3.6V) requires circuit verification but is compatible with most modern low-voltage applications. Cut Tape packaging matches the original PI5A100WEX format.

Alternative Direct Equivalent (TS3A5018D):

TS3A5018D provides identical electrical specifications to TS3A5018DR but carries Last Time Buy status with 4340 units available. This part is suitable only for designs where supply continuity beyond current inventory is not critical. Tube packaging differs from the original Cut Tape format.

For Networking Applications Only (TS5L100D or TS5L100DR):

TS5L100D and TS5L100DR are substitutes only for applications specifically designed for Ethernet signal switching. Both carry Last Time Buy status. The 19Ohm on-state resistance and fixed 6V ~ 6.5V supply range restrict these parts to dedicated networking implementations. The narrower operating temperature range (0°C ~ 70°C) excludes these parts from industrial temperature applications. TS5L100DR (Cut Tape) is preferred over TS5L100D (Tube) for packaging consistency.

Supply Chain Considerations:

PI5A100WEX remains in Active status with adequate inventory. TS3A5018DR is the only substitute maintaining Active status and should be prioritized for new designs requiring long-term component availability.

Frequently Asked Questions (FAQ)

Q: Can TS3A5018D or TS3A5018DR be used as direct drop-in replacements for PI5A100WEX?

A: Yes, both TS3A5018D and TS3A5018DR are direct functional equivalents. They share identical switch architecture (4-circuit SPDT 2:1), on-state resistance (10Ohm), and 16-SOIC package. The supply voltage range difference (1.65V ~ 3.6V vs. 2V ~ 6V) requires circuit verification to confirm compatibility with your power supply design. Both parts are RoHS3 compliant with MSL 1 rating.

Q: What is the difference between TS3A5018D and TS3A5018DR?

A: Both parts are electrically identical. The difference is packaging format: TS3A5018D is supplied in Tube packaging, while TS3A5018DR uses Cut Tape (CT) & Digi-Reel format. TS3A5018DR matches the original PI5A100WEX packaging. TS3A5018DR maintains Active product status; TS3A5018D is Last Time Buy.

Q: Can TS5L100D or TS5L100DR replace PI5A100WEX in general-purpose applications?

A: No. TS5L100D and TS5L100DR are optimized for Ethernet networking applications and are not suitable for general-purpose signal switching. The 19Ohm on-state resistance (versus 10Ohm) introduces higher insertion loss. The fixed 6V ~ 6.5V supply range is incompatible with the PI5A100WEX's 2V ~ 6V specification. The narrower operating temperature range (0°C ~ 70°C) excludes industrial applications. These parts are substitutes only for dedicated 10/100 Base-T networking implementations.

Q: What are the key electrical differences between PI5A100WEX and TS3A5018DR?

A: Both maintain 10Ohm on-state resistance and identical switch architecture. TS3A5018DR delivers superior performance: faster switching times (8ns/6.5ns vs. 15ns/7ns), lower charge injection (2pC vs. 10pC), better channel-to-channel matching (300mOhm vs. 800mOhm), and higher bandwidth (300MHz vs. 230MHz). The supply voltage range is narrower (1.65V ~ 3.6V vs. 2V ~ 6V), requiring application-specific verification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. PI5A100WEX, TS3A5018D, TS3A5018DR, TS5L100D, and TS5L100DR are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. All parts are REACH Unaffected and classified as EAR99 for export control purposes.

Q: Which substitute part should I select for a new design?

A: TS3A5018DR is the recommended choice for new designs. It maintains Active product status with 19100 units in inventory, ensuring long-term availability. It delivers superior electrical performance compared to PI5A100WEX while maintaining the critical 10Ohm on-state resistance and 16-SOIC package. Verify that your circuit design accommodates the 1.65V ~ 3.6V supply range.

Q: What is the product status significance for component selection?

A: Active status indicates ongoing production and long-term availability. Last Time Buy status indicates the manufacturer has announced end-of-life; current inventory represents the final production run. For new designs, prioritize Active status parts (PI5A100WEX or TS3A5018DR) to avoid future obsolescence. Last Time Buy parts (TS3A5018D, TS5L100D, TS5L100DR) are suitable only for designs where component availability beyond current inventory is not required.