PI5L100QE Equivalent & Substitute Parts

Part Overview

The PI5L100QE is a telecommunications switch IC manufactured by Diodes Incorporated, designed for 4-channel Ethernet switching applications in 10/100 Base-T LAN environments. This part operates as a 2:1 multiplexer/demultiplexer with quad switching capability in a 16-QSOP surface mount package. The PI5L100QE is currently obsolete, making equivalent and substitute parts necessary for ongoing system support, redesigns, and new production requirements.

Key Parameters

Parameter	PI5L100QE
Manufacturer	Diodes Incorporated
Product Status	Obsolete
Number of Channels	4
Multiplexer/Demultiplexer Circuit	2:1
On-State Resistance (Max)	11.2 Ohm
Voltage - Supply, Single (V+)	6.2V
-3dB Bandwidth	216 MHz
Operating Temperature	0°C ~ 70°C
Package / Case	16-SSOP (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the PI5L100QE is determined by the following critical parameters:

Package Compatibility: All substitutes must use 16-SSOP or 16-QSOP packaging (0.154", 3.90mm width) for mechanical and electrical pin compatibility
Channel Configuration: 4-channel switching architecture with 2:1 multiplexer/demultiplexer functionality
On-State Resistance: Maximum on-state resistance determines signal integrity and power dissipation characteristics
Supply Voltage: Operating voltage range must accommodate the application requirements
Bandwidth: -3dB bandwidth must support 10/100 Base-T Ethernet switching speeds
Temperature Range: Operating temperature must cover the application environment
Compliance: RoHS3 compliance and MSL rating required for manufacturing and storage

Substitute parts are grouped into two categories: direct Diodes Incorporated equivalents (PI3L100QE) and cross-manufacturer alternatives from Analog Devices Inc., Renesas Electronics Corporation, and Texas Instruments that meet the core switching and packaging requirements.

Parameter Comparison

Parameter	PI5L100QE	PI3L100QE	ADG774ABRQZ	ADG774ABRQZ-REEL7	QS4A205QG	QS4A205QG8	TS3L100DBQR	TS5L100DBQR
Manufacturer	Diodes Inc.	Diodes Inc.	Analog Devices	Analog Devices	Renesas	Renesas	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Last Time Buy
Number of Channels	4	4	4	4	4	4	4	4
Multiplexer/Demultiplexer Circuit	2:1	2:1	2:1	2:1	2:1	2:1	2:1	2:1
On-State Resistance (Max)	11.2 Ohm	15 Ohm	4.6 Ohm	4.6 Ohm	17 Ohm	17 Ohm	15 Ohm	19 Ohm
Voltage - Supply, Single (V+)	6.2V	3.3V	3V ~ 5V	3V ~ 5V	5V	5V	3V ~ 3.6V	6V ~ 6.5V
-3dB Bandwidth	216 MHz	213 MHz	400 MHz	400 MHz	830 MHz	830 MHz	350 MHz	350 MHz
Operating Temperature	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	0°C ~ 70°C	0°C ~ 70°C
Package / Case	16-SSOP	16-SSOP	16-SSOP	16-SSOP	16-SSOP	16-SSOP	16-SSOP	16-SSOP
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	2 (1 Year)	2 (1 Year)

Engineering Selection Recommendations

PI3L100QE (Diodes Incorporated) is the primary direct equivalent for PI5L100QE replacement. This part maintains the same manufacturer lineage, identical channel configuration, and package format. PI3L100QE is currently in active production status with extended operating temperature range (-40°C to 85°C) compared to the obsolete PI5L100QE. Supply voltage differs at 3.3V versus 6.2V, requiring circuit evaluation for compatibility. On-state resistance increases from 11.2 Ohm to 15 Ohm, with bandwidth reduction from 216 MHz to 213 MHz—both within acceptable margins for 10/100 Base-T applications.

ADG774ABRQZ and ADG774ABRQZ-REEL7 (Analog Devices Inc.) offer superior electrical performance with 4.6 Ohm on-state resistance and 400 MHz bandwidth. These parts support dual supply voltage operation (3V to 5V) and maintain active product status. The lower on-state resistance provides improved signal integrity and reduced power dissipation. ADG774ABRQZ-REEL7 offers higher inventory availability (6270 units) in Digi-Reel packaging format.

QS4A205QG and QS4A205QG8 (Renesas Electronics Corporation) provide the highest bandwidth performance at 830 MHz with 17 Ohm on-state resistance. These parts operate at fixed 5V supply and deliver superior crosstalk performance (-100dB @ 5MHz). QS4A205QG8 in Tape & Reel format offers significantly higher inventory (16485 units).

TS3L100DBQR (Texas Instruments) matches the PI5L100QE operating temperature range (0°C to 70°C) and maintains similar on-state resistance (15 Ohm) and bandwidth (350 MHz). This part operates at 3V to 3.6V supply voltage and is currently in active production.

TS5L100DBQR (Texas Instruments) is designated Last Time Buy status. This part operates at 6V to 6.5V supply voltage, closest to the original PI5L100QE specification, but with higher on-state resistance (19 Ohm). Selection of this part should account for its end-of-life status.

All substitute parts maintain ROHS3 compliance and are suitable for telecommunications and networking applications requiring 10/100 Base-T Ethernet switching.

Frequently Asked Questions (FAQ)

Q: Can PI3L100QE directly replace PI5L100QE without circuit modification?

A: PI3L100QE requires circuit evaluation due to supply voltage difference (3.3V vs. 6.2V). Pin configuration and package are compatible, but power supply design must be verified for the application.

Q: Which substitute offers the best signal integrity for high-speed Ethernet applications?

A: ADG774ABRQZ and ADG774ABRQZ-REEL7 provide the lowest on-state resistance (4.6 Ohm) and highest bandwidth (400 MHz), delivering superior signal integrity. QS4A205QG and QS4A205QG8 offer even higher bandwidth (830 MHz) for demanding applications.

Q: Are all substitutes available in the same 16-SSOP package?

A: All listed substitutes use 16-SSOP or 16-QSOP packaging with identical 0.154" (3.90mm) width, ensuring mechanical and electrical pin compatibility.

Q: What is the difference between ADG774ABRQZ and ADG774ABRQZ-REEL7?

A: Both parts are electrically identical. ADG774ABRQZ-REEL7 is supplied in Digi-Reel format with higher inventory availability (6270 units vs. 1250 units), while ADG774ABRQZ is supplied in Tube packaging.

Q: Should TS5L100DBQR be selected for new designs?

A: TS5L100DBQR is designated Last Time Buy status, indicating end-of-life. This part is suitable for legacy system support but not recommended for new production designs. TS3L100DBQR or ADG774ABRQZ-REEL7 are preferred for new applications.

Q: What is the impact of on-state resistance variation among substitutes?

A: On-state resistance ranges from 4.6 Ohm (ADG774 series) to 19 Ohm (TS5L100DBQR). Lower resistance reduces power dissipation and improves signal integrity. Circuit design must account for impedance matching and signal attenuation requirements specific to the application.

Q: Are all substitutes RoHS3 compliant?

A: All listed substitute parts are RoHS3 compliant and suitable for applications requiring environmental compliance certification.

Q: What is the Moisture Sensitivity Level (MSL) consideration for storage?

A: PI5L100QE, PI3L100QE, and ADG774 series have MSL 1 (Unlimited shelf life). TS3L100DBQR and TS5L100DBQR have MSL 2 (1 Year shelf life), requiring controlled storage conditions and bake-out procedures before reflow soldering.

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