PI2DBS212ZHEX Equivalent & Substitute Parts

Part Overview

The PI2DBS212ZHEX is a telecommunications switch IC manufactured by Diodes Incorporated, designed as a 2-channel multiplexer/demultiplexer interface component in a 28-TQFN (4.6x5.5mm) package. This part is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations. The component operates across a single supply voltage range of 1.2V to 1.8V with a maximum on-state resistance of 10 ohms and supports SATA applications with a -3dB bandwidth of 2GHz.

Substiute Parts

PI2DBS212ZHEX

Diodes IncorporatedIn Stock: 18953PI2DBS212ZHEX Datasheet

Current PartRFQ

PI2DBS16212AZREX

Diodes IncorporatedIn Stock: 31154PI2DBS16212AZREX Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PI2DBS212ZHEX is determined by the following critical parameters:

• Functional Architecture: 2-channel multiplexer/demultiplexer configuration (2:1 circuit topology)
• Channel Count: Minimum 2 channels required
• Supply Voltage Compatibility: Operating voltage range must encompass or be compatible with 1.2V ~ 1.8V
• Bandwidth Performance: Minimum -3dB bandwidth of 2GHz for signal integrity in telecommunications applications
• Package Type: Surface mount configuration with exposed pad design
• Regulatory Compliance: ROHS3 compliance and MSL Level 1 rating required
• Operating Temperature Range: -40°C ~ 85°C operational envelope

The PI2DBS16212AZREX qualifies as a substitute based on matching the 2-channel 2:1 multiplexer/demultiplexer architecture, surface mount technology, ROHS3 compliance, and identical operating temperature range. The substitute operates at a higher supply voltage (1.8V) and provides superior bandwidth performance (14GHz), making it functionally compatible for telecommunications switching applications.

Parameter Comparison

Engineering Selection Recommendations

The PI2DBS16212AZREX is the manufacturer-recommended substitute for the obsolete PI2DBS212ZHEX. Both components maintain identical regulatory compliance status (ROHS3 and REACH unaffected) and moisture sensitivity ratings. The substitute is currently in active production status, ensuring long-term availability and supply chain continuity.

The PI2DBS16212AZREX operates at a fixed 1.8V supply voltage, which falls within the upper range of the original part's 1.2V ~ 1.8V specification. The substitute provides enhanced bandwidth performance (14GHz versus 2GHz), delivering superior signal integrity for telecommunications switching applications. Both components share identical operating temperature ranges and surface mount packaging technology, facilitating direct functional replacement in existing designs.

Frequently Asked Questions (FAQ)

Q: Can the PI2DBS16212AZREX directly replace the PI2DBS212ZHEX in existing designs?

A: Yes. Both components implement identical 2-channel 2:1 multiplexer/demultiplexer architecture with matching operating temperature ranges (-40°C ~ 85°C) and regulatory compliance certifications. The substitute operates at 1.8V, which is within the original part's supply voltage envelope. Surface mount packaging and exposed pad design are consistent across both parts.

Q: What are the key differences between these two parts?

A: The primary differences are product status (obsolete versus active), supply voltage specification (1.2V ~ 1.8V range versus fixed 1.8V), and bandwidth performance (2GHz versus 14GHz). The substitute provides higher bandwidth capability, which enhances signal integrity without compromising compatibility.

Q: Are there package compatibility considerations?

A: The PI2DBS212ZHEX uses a 28-TQFN (4.6x5.5mm) package, while the PI2DBS16212AZREX uses a 24-TQFN (2.5x2.5mm) package. Both are surface mount configurations with exposed pads. PCB layout modifications may be required to accommodate the different package footprints and pin counts.

Q: Does the substitute meet the same compliance requirements?

A: Yes. Both components are ROHS3 compliant, REACH unaffected, and carry identical MSL Level 1 (Unlimited) moisture sensitivity ratings. Regulatory and environmental compliance is maintained across the substitution.

Q: Why is the PI2DBS16212AZREX recommended over other potential alternatives?

A: The PI2DBS16212AZREX is the manufacturer-recommended substitute, ensuring engineering validation and design compatibility. It maintains the core 2-channel 2:1 multiplexer/demultiplexer functionality while offering improved bandwidth performance and active production status for supply chain reliability.