NBC12430AFNR2G PLL Clock Generator Equivalent & Substitute Parts

Part Overview

The NBC12430AFNR2G is a PLL Clock Generator IC manufactured by onsemi, designed for 800MHz operation in a 28-LCC (J-Lead) surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. The part operates across a supply voltage range of 3.135V to 5.25V with PECL output configuration, suitable for high-speed clock distribution applications requiring crystal input sources.

Substiute Parts

NBC12430AFNR2G

onsemiIn Stock: 961NBC12430AFNR2G Datasheet

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NBC12429AFNR2G

onsemiIn Stock: 1228NBC12429AFNR2G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the NBC12430AFNR2G is determined by the following critical parameters:

Mandatory Matching Parameters:

• Package / Case: 28-LCC (J-Lead)
• Mounting Type: Surface Mount
• Input Type: Crystal
• Output Type: PECL
• Number of Circuits: 1
• Ratio - Input:Output: 1:1
• Voltage - Supply: 3.135V ~ 5.25V (compatible range)
• Operating Temperature: -40°C ~ 85°C (compatible range)

Flexible Parameter:

• Frequency - Max: May vary based on application requirements

The NBC12429AFNR2G qualifies as a substitute part because it maintains identical package, mounting, input/output configuration, voltage supply range, and operating temperature specifications. The primary difference is the maximum frequency rating of 400MHz versus 800MHz, which represents a lower-speed alternative suitable for applications not requiring the full 800MHz capability.

Parameter Comparison

Engineering Selection Recommendations

Both the NBC12430AFNR2G and NBC12429AFNR2G are classified as obsolete products. Selection between these parts depends on system frequency requirements:

NBC12430AFNR2G Selection Criteria:

• Applications requiring maximum clock frequencies up to 800MHz
• Systems designed for high-speed signal distribution
• Designs where full frequency capability is specified

NBC12429AFNR2G Selection Criteria:

• Applications with clock frequency requirements up to 400MHz
• Cost-optimized designs where lower frequency operation is acceptable
• Legacy system replacements where 400MHz operation meets functional requirements

Both parts share identical compliance certifications (REACH Unaffected, ECCN EAR99, HTSUS 8542.39.0001) and environmental specifications. The NBC12429AFNR2G carries RoHS3 Compliant status, providing additional environmental compliance assurance for new designs.

Frequently Asked Questions (FAQ)

Q: Can NBC12429AFNR2G replace NBC12430AFNR2G in all applications?

A: NBC12429AFNR2G is a valid substitute only for applications where the maximum required clock frequency does not exceed 400MHz. The identical package, voltage supply range, operating temperature, and PECL output configuration ensure mechanical and electrical compatibility within this frequency constraint.

Q: Are there any package compatibility concerns between these parts?

A: No. Both parts use the 28-LCC (J-Lead) package with identical supplier device package dimensions (11.51x11.51mm). Surface mount assembly processes and PCB layouts are directly compatible.

Q: What is the significance of the MSL rating for these parts?

A: Both parts carry MSL 3 (168 Hours) classification, indicating identical moisture sensitivity requirements. Storage and handling procedures must comply with this specification to maintain component reliability.

Q: Why are both parts classified as obsolete?

A: Obsolete status indicates these parts are no longer in active production by onsemi. Availability is limited to existing inventory. For new designs, consultation with onsemi regarding current-generation PLL clock generator alternatives is recommended.

Q: Are there differences in RoHS compliance between these parts?

A: NBC12429AFNR2G carries explicit RoHS3 Compliant certification. NBC12430AFNR2G does not list RoHS status in available specifications. Both parts maintain REACH Unaffected status.