TS3L100D Equivalent & Substitute Parts

Part Overview

The TS3L100D is a quad SPDT (Single Pole Double Throw) networking switch IC manufactured by Texas Instruments, designed for 10/100 Base-T Ethernet applications. This component functions as a 2:1 multiplexer/demultiplexer with four independent channels in a 16-SOIC surface mount package.

The TS3L100D is classified as obsolete, making it necessary to identify functionally equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain compatibility across electrical performance, package form factor, and application requirements.

Key Parameters

Parameter	TS3L100D
Manufacturer	Texas Instruments
Category	Interface
Switch Circuit Type	SPDT
Multiplexer/Demultiplexer Circuit	2:1
Number of Channels	4
On-State Resistance (Max)	15Ω
Voltage - Supply, Single (V+)	3V ~ 3.6V
-3dB Bandwidth	350MHz
Features	10/100 Base-T
Operating Temperature	0°C ~ 70°C
Package / Case	16-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution eligibility for the TS3L100D is determined by the following critical parameters:

Switch Configuration: SPDT topology with 2:1 multiplexer/demultiplexer circuit and 4 independent channels
Package Compatibility: 16-SOIC surface mount package (0.154", 3.90mm width)
On-State Resistance: Maximum 15Ω per channel
Supply Voltage Range: Compatibility with 3V ~ 3.6V single supply operation
Bandwidth Performance: Minimum 350MHz -3dB bandwidth for 10/100 Base-T applications
Environmental Compliance: ROHS3 compliance and MSL 1 rating

The substitute parts listed below meet or exceed these core parameters while offering improved availability and active product status.

Parameter Comparison

Parameter	TS3L100D	PI5A100WE	PI5A100WEX
Manufacturer	Texas Instruments	Diodes Incorporated	Diodes Incorporated
Switch Circuit	SPDT	SPDT	SPDT
Multiplexer/Demultiplexer Circuit	2:1	2:1	2:1
Number of Circuits	4	4	4
On-State Resistance (Max)	15Ω	10Ω	10Ω
Voltage - Supply, Single (V+)	3V ~ 3.6V	2V ~ 6V	2V ~ 6V
-3dB Bandwidth	350MHz	230MHz	230MHz
Operating Temperature	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	16-SOIC	16-SOIC	16-SOIC
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Obsolete	Discontinued at DiGi Electronics	Active

Engineering Selection Recommendations

PI5A100WEX is the primary recommended substitute for the TS3L100D. This part maintains active product status with Diodes Incorporated, ensuring long-term availability and supply chain continuity. The PI5A100WEX is ROHS3 compliant and carries MSL 1 rating, matching the environmental and regulatory requirements of the original component.

The PI5A100WEX offers superior electrical performance characteristics compared to the TS3L100D, including lower on-state resistance (10Ω versus 15Ω) and an extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C). The expanded supply voltage range (2V ~ 6V) provides greater design flexibility while maintaining compatibility with the original 3V ~ 3.6V specification.

PI5A100WE serves as a secondary alternative, offering identical electrical specifications to the PI5A100WEX but with discontinued product status at DiGi Electronics. This part remains suitable for applications where supply chain continuity is not a primary concern.

Both substitute parts are packaged in 16-SOIC form factor, enabling direct PCB layout compatibility without redesign requirements.

Frequently Asked Questions (FAQ)

Q: Can PI5A100WEX directly replace TS3L100D in existing designs?

A: Yes. Both parts share identical switch topology (SPDT, 2:1 multiplexer/demultiplexer), channel count (4), and 16-SOIC package form factor. The PI5A100WEX operates within the TS3L100D supply voltage range and exceeds minimum bandwidth requirements for 10/100 Base-T applications.

Q: What are the key electrical differences between TS3L100D and PI5A100WEX?

A: The PI5A100WEX features lower on-state resistance (10Ω maximum versus 15Ω), wider supply voltage range (2V ~ 6V versus 3V ~ 3.6V), and extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C). The TS3L100D provides higher -3dB bandwidth (350MHz versus 230MHz), which remains adequate for the specified 10/100 Base-T application.

Q: Are there packaging differences between substitute parts?

A: No. Both PI5A100WE and PI5A100WEX are supplied in 16-SOIC (0.154", 3.90mm width) surface mount packages, identical to the TS3L100D. PI5A100WEX is available in Cut Tape (CT) and Digi-Reel® packaging options.

Q: What is the compliance status of substitute parts?

A: Both PI5A100WE and PI5A100WEX are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Both parts carry EAR99 ECCN classification and are REACH unaffected, matching the regulatory profile of the original TS3L100D.

Q: Why is PI5A100WEX preferred over PI5A100WE?

A: PI5A100WEX maintains active product status, ensuring reliable long-term availability and supply chain support. PI5A100WE is discontinued at DiGi Electronics, presenting potential sourcing challenges for ongoing production requirements.

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