THCX222R05 Equivalent & Substitute Parts Reference

Part Overview

The THCX222R05 is a 2-channel buffer/redriver interface component manufactured by THine Solutions, Inc., designed for USB 3.1 Gen1 applications operating at 5.0 Gbps. The device features CML input/output signaling with integrated input equalization and operates across a supply voltage range of 3.0V to 3.6V. The component is housed in a 30-WFQFN exposed pad package with 2.5x4.5mm dimensions.

The THCX222R05 carries an Obsolete product status. Identifying equivalent and substitute parts is essential for design continuity, procurement flexibility, and long-term supply chain management. This reference provides qualified alternatives based on strict electrical and mechanical compatibility parameters.

Substiute Parts

THCX222R05

THine Solutions, Inc.In Stock: 936THCX222R05 Datasheet

Current PartRFQ

PI3EQX12902AZLEX

Diodes IncorporatedIn Stock: 15748PI3EQX12902AZLEX Datasheet

DirectRFQ

PI3EQX12902BZLEX

Diodes IncorporatedIn Stock: 3455PI3EQX12902BZLEX Datasheet

DirectRFQ

THCX222R05-B

CELIn Stock: 835THCX222R05-B Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the THCX222R05 are classified into two categories based on compatibility criteria:

Category 1: Parametric Equivalents Parts that maintain identical or functionally equivalent electrical and mechanical specifications, enabling direct substitution in existing designs without modification.

Category 2: Direct Manufacturer Alternatives Parts from alternative manufacturers that share the same package form factor and pin configuration but may operate at higher data rates or different supply voltages. These parts require design review to confirm compatibility with the target application.

The substitution logic is based on the following key parameters:

• Package form factor: 30-WFQFN Exposed Pad (2.5x4.5mm)
• Mounting type: Surface Mount
• Channel configuration: 2 channels
• Input/Output signaling: CML
• Signal conditioning: Input Equalization
• Operating temperature range: -40°C ~ 85°C
• RoHS3 compliance
• ECCN and HTSUS classification alignment

Parameter Comparison

Engineering Selection Recommendations

THCX222R05-B (Parametric Equivalent - Recommended Primary Substitute)

The THCX222R05-B manufactured by CEL is the optimal substitute for the obsolete THCX222R05. This part maintains identical electrical specifications including 5 Gbps data rate, 2-channel configuration, 150 ps delay time, and 3.0V to 3.6V supply voltage range. The package form factor, pin configuration, and thermal operating range are identical. The THCX222R05-B carries Active product status, ensuring long-term availability and supply chain continuity. Both parts share ROHS3 compliance and identical ECCN/HTSUS classifications. The primary difference is packaging format (Tray versus original specification), which does not affect electrical or mechanical compatibility. MSL rating remains at Level 3 (168 Hours), consistent with the original part.

PI3EQX12902AZLEX (Direct Alternative - Secondary Option)

The PI3EQX12902AZLEX from Diodes Incorporated is a 2-channel buffer/redriver in the same 30-WFQFN package with identical pin configuration. This part operates at 8 Gbps maximum data rate, exceeding the THCX222R05 specification of 5 Gbps. The supply voltage is fixed at 3.3V, which falls within the original part's 3.0V to 3.6V range. Input equalization and CML signaling are maintained. The PI3EQX12902AZLEX carries Active product status and features improved MSL rating of Level 1 (Unlimited), providing superior moisture handling characteristics. This part is suitable for applications where higher data rate capability and improved moisture sensitivity are beneficial. Design verification is required to confirm 8 Gbps operation is compatible with the target application.

PI3EQX12902BZLEX (Direct Alternative - Higher Performance Option)

The PI3EQX12902BZLEX from Diodes Incorporated is a 2-channel buffer/redriver rated for 12.5 Gbps maximum data rate in the same 30-WFQFN package. This part provides the highest performance option among available substitutes. Supply voltage is fixed at 3.3V, within the original operating range. CML signaling and input equalization are preserved. The part carries Active product status and MSL Level 1 (Unlimited) rating. The 12.5 Gbps capability significantly exceeds the THCX222R05 specification and is suitable for applications requiring enhanced bandwidth margin or future performance scaling. Design review is required to confirm compatibility with the target application's signal integrity and timing requirements.

All substitute parts maintain ROHS3 compliance and identical ECCN/HTSUS classifications, ensuring regulatory and export control alignment with the original THCX222R05.

Frequently Asked Questions (FAQ)

Q1: Can the THCX222R05-B be used as a direct drop-in replacement for the THCX222R05?

A: Yes. The THCX222R05-B maintains identical electrical specifications (5 Gbps data rate, 150 ps delay, 3.0V-3.6V supply), identical package form factor (30-WFQFN Exposed Pad, 2.5x4.5mm), and identical pin configuration. The only difference is packaging format (Tray versus original). No design modifications are required for electrical or mechanical compatibility.

Q2: What are the key differences between the PI3EQX12902AZLEX and PI3EQX12902BZLEX?

A: Both parts share the same package, pin configuration, and CML signaling architecture. The primary difference is maximum data rate: PI3EQX12902AZLEX operates at 8 Gbps, while PI3EQX12902BZLEX operates at 12.5 Gbps. Both exceed the THCX222R05 specification of 5 Gbps. Supply voltage for both is fixed at 3.3V. Design verification is required to confirm the higher data rate capability is compatible with the target application.

Q3: Are the Diodes Incorporated parts (PI3EQX12902 series) pin-compatible with the THCX222R05?

A: Yes. Both the PI3EQX12902AZLEX and PI3EQX12902BZLEX use the 30-WFQFN Exposed Pad package with identical 2.5x4.5mm dimensions and pin configuration. CML input/output signaling and input equalization are maintained. However, the higher data rate specifications require design review to confirm signal integrity and timing compatibility with the target application.

Q4: What is the impact of the different supply voltage specifications?

A: The THCX222R05 operates across 3.0V to 3.6V. The PI3EQX12902 series parts operate at fixed 3.3V. Since 3.3V falls within the original range, these parts are electrically compatible with power supplies designed for the THCX222R05. However, if the original design relies on the full 3.0V to 3.6V range for specific operating conditions, design verification is required.

Q5: How do the MSL ratings affect component handling and storage?

A: The THCX222R05 and THCX222R05-B carry MSL Level 3 (168 Hours), requiring bake-out procedures if exposed to moisture for extended periods. The PI3EQX12902 series parts carry MSL Level 1 (Unlimited), eliminating moisture sensitivity concerns. For high-volume manufacturing or extended storage, the Level 1 rating provides operational advantages. Standard handling procedures for Level 3 components remain applicable to the THCX222R05-B.

Q6: Are all substitute parts ROHS3 compliant?

A: Yes. The THCX222R05, THCX222R05-B, PI3EQX12902AZLEX, and PI3EQX12902BZLEX are all ROHS3 compliant. All parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications, ensuring regulatory and export control alignment.

Q7: What is the significance of Active versus Obsolete product status?

A: The THCX222R05 carries Obsolete status, indicating discontinued manufacturing and limited future availability. The THCX222R05-B, PI3EQX12902AZLEX, and PI3EQX12902BZLEX all carry Active status, ensuring ongoing production, long-term supply chain availability, and manufacturer support. Active status is essential for new designs and long-term product lifecycle management.

Q8: Which substitute part should be selected for a new design?

A: For new designs requiring 5 Gbps performance, the THCX222R05-B is the optimal choice, providing parametric equivalence to the original part with Active product status. For applications where higher data rate capability is beneficial or required, the PI3EQX12902BZLEX (12.5 Gbps) provides the highest performance margin. Design verification is required for all Diodes Incorporated alternatives to confirm signal integrity and timing compatibility.