NBC12429FA PLL Clock Generator IC Equivalent & Substitute Parts

Part Overview

The NBC12429FA is a PLL Clock Generator IC manufactured by onsemi, designed for 400MHz clock generation applications in 32-LQFP surface mount packaging. This component features crystal input, PECL output, and operates across a 3.135V to 5.25V supply voltage range with a 0°C to 70°C operating temperature specification.

The NBC12429FA is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for systems utilizing this clock generator architecture.

Substiute Parts

NBC12429FA

onsemiIn Stock: 3457NBC12429FA Datasheet

Current PartRFQ

NBC12429FAG

onsemiIn Stock: 1218NBC12429FAG Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the NBC12429FA is determined by strict equivalence across the following critical parameters:

• Functional Type: PLL Clock Generator with identical circuit count (1)
• Frequency Specification: Maximum 400MHz operation
• Input/Output Configuration: Crystal input with PECL output, 1:1 ratio, No/Yes differential input/output
• Electrical Specifications: Supply voltage range 3.135V ~ 5.25V, operating temperature 0°C ~ 70°C
• Physical Package: 32-LQFP surface mount package (7x7mm)
• Moisture Sensitivity: MSL 2 (1 Year)

The NBC12429FAG qualifies as a direct substitute based on complete parameter alignment across all specified electrical and mechanical characteristics. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The NBC12429FAG is the direct substitute for the NBC12429FA. Both components share identical electrical and mechanical specifications across all functional parameters. The NBC12429FAG offers the advantage of active product status, ensuring continued availability and supply chain support. Additionally, the NBC12429FAG meets ROHS3 compliance requirements, whereas the NBC12429FA is RoHS non-compliant. For new designs or production continuity, the NBC12429FAG is the preferred selection. The NBC12429FA remains available in limited inventory (3359 pcs) for legacy system support or existing stock requirements.

Frequently Asked Questions (FAQ)

Q: Can NBC12429FAG replace NBC12429FA in existing designs? A: Yes. The NBC12429FAG is electrically and mechanically equivalent to the NBC12429FA across all specified parameters including frequency, supply voltage, operating temperature, package type, and pin configuration. No circuit modifications are required.

Q: What is the primary difference between these parts? A: The NBC12429FAG is active product status with ROHS3 compliance, while the NBC12429FA is obsolete and RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there packaging differences? A: The NBC12429FA packaging specification is not defined. The NBC12429FAG is supplied in Tray packaging. Both use 32-LQFP (7x7mm) surface mount packages.

Q: Does the MSL rating differ between parts? A: No. Both components carry MSL 2 (1 Year) moisture sensitivity level specification.

Q: Which part should be selected for new production? A: The NBC12429FAG is recommended for new production due to active product status and ROHS3 compliance certification.

Q: Are supply levels adequate for both parts? A: NBC12429FA inventory is 3359 pcs. NBC12429FAG inventory is 1122 pcs. Availability should be confirmed with your supplier for production volume requirements.