PI2EQX5804DNJEX Equivalent & Substitute Parts

Part Overview

The PI2EQX5804DNJEX is a 4-channel PCIe ReDriver buffer manufactured by Diodes Incorporated, designed for signal conditioning in high-speed interface applications. This component operates at 5Gbps with integrated input equalization and output de-emphasis capabilities. The part is currently classified as obsolete, making equivalent substitute components necessary for ongoing design support and procurement continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	PI2EQX5804DNJEX
Manufacturer	Diodes Incorporated
Product Type	Buffer, ReDriver
Number of Channels	4
Data Rate (Max)	5Gbps
Applications	PCIe
Input/Output Signal Type	CML
Package Type	100-LBGA (11x11)
Voltage Supply	1.2V
Operating Temperature	0°C ~ 70°C
Product Status	Obsolete
RoHS Compliance	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the PI2EQX5804DNJEX is determined by the following critical parameters:

Channel Count: 4 channels (fixed requirement)
Signal Type: CML input and output (mandatory for interface compatibility)
Application Domain: PCIe primary application
Data Rate Capability: Minimum 5Gbps to maintain performance envelope
Signal Conditioning: Input equalization and output de-emphasis required
Mounting Type: Surface mount (consistent with original)
Compliance: RoHS3 compliance maintained across substitutes

The substitute parts listed below are active, production-status components from Texas Instruments that meet or exceed the electrical and mechanical requirements of the obsolete PI2EQX5804DNJEX. Substitutes are grouped by application compatibility and performance tier.

Parameter Comparison

Parameter	PI2EQX5804DNJEX	DS100BR410SQ/NOPB	DS100BR410SQE/NOPB	DS100BR410SQX/NOPB	DS125BR401ANJYR	DS125BR401ANJYT	DS125BR401SQ/NOPB	DS125BR401SQE/NOPB	DS64BR401SQ/NOPB	DS64BR401SQE/NOPB	SN65LVPE504RUAR
Manufacturer	Diodes Inc.	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments
Number of Channels	4	4	4	4	4	4	8	4	4	4	4
Data Rate (Max)	5Gbps	10.3Gbps	10.3Gbps	10.3Gbps	12Gbps	12Gbps	12.5Gbps	12Gbps	6.4Gbps	6.4Gbps	5Gbps
Applications	PCIe	SATA	SATA	SATA	PCIe, SAS, SATA	PCIe, SAS, SATA	PCIe	PCIe, SAS, SATA	SAS, SATA	SAS, SATA	PCIe
Input/Output	CML	CML	CML	CML	CML	CML	CML	CML	CML	CML	CML
Signal Conditioning	Input EQ, Output DE	Input EQ, Output DE	Input EQ, Output DE	Input EQ, Output DE	Input EQ, Output DE	Input EQ, Output DE	Input EQ, Output DE	Input EQ, Output DE	Input EQ, Output DE	Input EQ, Output DE	Input EQ, Output DE
Voltage Supply	1.2V	2.375V ~ 2.625V	2.375V ~ 2.625V	2.375V ~ 2.625V	2.375V ~ 3.6V	2.375V ~ 3.6V	2.375V ~ 3.6V	2.375V ~ 3.6V	2.375V ~ 2.625V	2.375V ~ 2.625V	3V ~ 3.6V
Package Type	100-LBGA (11x11)	48-WQFN (7x7)	48-WQFN (7x7)	48-WQFN (7x7)	54-WQFN (10x5.5)	54-WQFN (10x5.5)	54-WQFN (10x5.5)	54-WQFN (10x5.5)	54-WQFN (10x5.5)	54-WQFN (10x5.5)	42-WQFN (4.6x9)
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	-40°C ~ 85°C	-40°C ~ 85°C	-10°C ~ 85°C	-10°C ~ 85°C	-40°C ~ 85°C
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Compliance	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3	ROHS3
MSL Rating	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	2 (1 Year)	2 (1 Year)	2 (1 Year)	2 (1 Year)	2 (1 Year)	2 (1 Year)	2 (1 Year)

Engineering Selection Recommendations

Primary Substitutes for PCIe Applications:

SN65LVPE504RUAR is the closest functional equivalent, maintaining the 5Gbps data rate and 4-channel PCIe configuration. This part operates at 3V–3.6V supply voltage and is housed in a 42-WQFN package. It is active, production-status, and carries ROHS3 compliance with EAR99 ECCN classification.

DS125BR401SQE/NOPB and DS125BR401ANJYR provide higher performance capability at 12Gbps with extended supply voltage range (2.375V–3.6V) and improved MSL rating (2, 1 Year). These parts support PCIe, SAS, and SATA applications and are packaged in 54-WQFN (10x5.5) format.

Alternative Substitutes for Multi-Protocol Support:

DS125BR401SQ/NOPB offers 8-channel configuration at 12.5Gbps for PCIe applications where channel expansion is beneficial. This part maintains active production status and ROHS3 compliance.

Lower-Speed Alternatives:

DS64BR401SQ/NOPB and DS64BR401SQE/NOPB operate at 6.4Gbps and support SAS/SATA applications. These parts are suitable for designs where PCIe performance is not the primary requirement.

Packaging Considerations:

The original PI2EQX5804DNJEX uses 100-LBGA (11x11) packaging. All substitute parts employ WQFN packages (42-WQFN, 48-WQFN, or 54-WQFN), requiring PCB layout redesign. Thermal and electrical performance characteristics differ between BGA and WQFN packages and must be evaluated during design migration.

All substitute parts maintain RoHS3 compliance and are currently in active production status, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can DS100BR410SQ/NOPB replace PI2EQX5804DNJEX in a PCIe design?

A: DS100BR410SQ/NOPB is rated for SATA applications with 10.3Gbps capability, exceeding the 5Gbps PCIe requirement of the original part. However, it is optimized for SATA protocol. For PCIe-specific designs, SN65LVPE504RUAR or DS125BR401SQE/NOPB are more appropriate selections.

Q: What is the impact of package change from 100-LBGA to WQFN?

A: Package migration from 100-LBGA (11x11) to WQFN formats (42-WQFN, 48-WQFN, or 54-WQFN) requires complete PCB layout redesign, including trace routing, via placement, and thermal management. Electrical performance, signal integrity, and thermal dissipation characteristics differ between package types and must be re-evaluated.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, maintaining regulatory alignment with the original PI2EQX5804DNJEX.

Q: What is the difference between DS125BR401ANJYR and DS125BR401SQE/NOPB?

A: Both parts are 4-channel, 12Gbps ReDrivers in 54-WQFN (10x5.5) packaging with identical electrical specifications. DS125BR401ANJYR is supplied in Cut Tape & Digi-Reel packaging, while DS125BR401SQE/NOPB is supplied in Cut Tape & Digi-Reel format. Selection depends on procurement and handling requirements.

Q: Can I use DS125BR401SQ/NOPB as a direct substitute?

A: DS125BR401SQ/NOPB is an 8-channel variant at 12.5Gbps, not a direct 4-channel equivalent. It is suitable only if your design can accommodate 8 channels and the higher data rate. Package and pinout differ from the original part.

Q: What supply voltage range should I design for when migrating to a substitute?

A: The original PI2EQX5804DNJEX operates at 1.2V. Substitute parts operate at higher voltages: DS100BR410 series at 2.375V–2.625V, DS125BR401 series at 2.375V–3.6V, and SN65LVPE504RUAR at 3V–3.6V. Power supply redesign is required for any substitution.

Q: Are there any ECCN or export control differences?

A: The original part carries EAR99 classification. Most substitute parts carry either EAR99 (DS125BR401ANJYR, DS125BR401ANJYT, SN65LVPE504RUAR) or 5A991B1 (DS100BR410 series, DS64BR401 series, DS125BR401SQE/NOPB). Verify export control requirements for your application and destination.

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