TS3L100PWR Equivalent & Substitute Parts

Part Overview

The TS3L100PWR is an active networking switch IC manufactured by Texas Instruments, designed for 10/100 Base-T Ethernet applications. This quad-channel SPDT multiplexer/demultiplexer operates as a 2:1 switch with integrated signal routing for network interface circuits. The device is in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the specified parameter range.

Key Parameters

Parameter	Value
Multiplexer/Demultiplexer Circuit	2:1
Switch Circuit Type	SPDT
Number of Channels	4
On-State Resistance (Max)	15 Ohm
Voltage Supply Single (V+)	3V ~ 3.6V
-3dB Bandwidth	350 MHz
Package / Case	16-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Operating Temperature	0°C ~ 70°C (TA)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the TS3L100PWR is determined by the following critical parameters:

Circuit Configuration: 2:1 multiplexer/demultiplexer with SPDT switching topology and 4-channel architecture
Package Compatibility: 16-TSSOP surface mount package with identical 0.173" (4.40mm) width
Electrical Supply: Single supply voltage range 3V to 3.6V
On-State Resistance: Maximum 15 Ohm specification
Bandwidth Performance: Minimum -3dB bandwidth of 350 MHz for signal integrity in networking applications
Compliance: RoHS3 compliance and EAR99 export classification

The FSUSB22MTCX meets all mandatory substitution criteria while providing enhanced electrical performance characteristics within the specified parameter envelope.

Parameter Comparison

Parameter	TS3L100PWR	FSUSB22MTCX	Compatibility
Manufacturer	Texas Instruments	Fairchild Semiconductor	Different source
Multiplexer/Demultiplexer Circuit	2:1	2:1	Match
Switch Circuit Type	SPDT	SPDT	Match
Number of Channels	4	4	Match
On-State Resistance (Max)	15 Ohm	6.5 Ohm	Substitute exceeds specification
Voltage Supply Single (V+)	3V ~ 3.6V	3V ~ 3.6V	Match
-3dB Bandwidth	350 MHz	750 MHz	Substitute exceeds specification
Package / Case	16-TSSOP (0.173", 4.40mm Width)	16-TSSOP (0.173", 4.40mm Width)	Match
Mounting Type	Surface Mount	Surface Mount	Match
Operating Temperature	0°C ~ 70°C (TA)	-40°C ~ 85°C (TA)	Substitute provides extended range
Product Status	Active	Active	Match
ECCN Classification	EAR99	EAR99	Match

Engineering Selection Recommendations

Primary Selection (TS3L100PWR): Specified for original design intent with validated thermal and performance characteristics within the 0°C to 70°C operating window. Active production status with established supply chain and RoHS3 compliance certification.

Substitute Selection (FSUSB22MTCX): Functionally equivalent with identical circuit topology, package footprint, and supply voltage requirements. Provides enhanced electrical performance (6.5 Ohm on-state resistance vs. 15 Ohm maximum, 750 MHz bandwidth vs. 350 MHz) and extended operating temperature range (-40°C to 85°C). Active production status with EAR99 classification. Suitable for applications requiring improved signal integrity or broader thermal operating conditions within the specified voltage envelope.

Both devices maintain RoHS3 compliance and identical mechanical mounting characteristics, enabling direct substitution at the PCB assembly level without design modification.

Frequently Asked Questions (FAQ)

Q: Can FSUSB22MTCX replace TS3L100PWR in existing designs?

A: Yes. Both devices share identical 2:1 SPDT multiplexer/demultiplexer topology with 4-channel configuration, 16-TSSOP package geometry, and 3V to 3.6V supply voltage specification. Pin-to-pin compatibility and functional equivalence are maintained.

Q: What are the key differences between these parts?

A: FSUSB22MTCX provides lower on-state resistance (6.5 Ohm vs. 15 Ohm maximum) and higher bandwidth performance (750 MHz vs. 350 MHz). Operating temperature range extends to -40°C to 85°C compared to 0°C to 70°C for TS3L100PWR. These represent performance enhancements within the specified electrical parameter space.

Q: Are there package compatibility concerns?

A: No. Both devices use identical 16-TSSOP surface mount packages with 0.173" (4.40mm) width. PCB footprints, solder pad layouts, and mounting procedures are equivalent.

Q: Do compliance certifications differ?

A: Both devices carry EAR99 export classification and maintain RoHS3 compliance status. HTSUS tariff classification is identical (8542.39.0001).

Q: Which part should be selected for new designs?

A: Selection depends on application requirements. TS3L100PWR is appropriate for standard 10/100 Base-T networking applications within the specified 0°C to 70°C thermal envelope. FSUSB22MTCX is suitable when enhanced bandwidth performance, lower insertion loss, or extended temperature operation (-40°C to 85°C) is required.

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