9FGL0851CKILFT Equivalent & Substitute Parts

Part Overview

The 9FGL0851CKILFT is a PCI Express (PCIe) Clock Generator IC manufactured by Renesas Electronics Corporation. This device functions as a clock buffer with 100MHz maximum frequency, designed for PCIe applications requiring precise timing signals. The part operates with a 1:8 input-to-output ratio, converting single-ended clock or crystal inputs into differential HCSL and LVCMOS outputs across a single circuit.

The 9FGL0851CKILFT carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for systems utilizing this clock generator.

Substiute Parts

9FGL0851CKILFT

Renesas Electronics CorporationIn Stock: 8089FGL0851CKILFT Datasheet

Current PartRFQ

9FGL0851DKILFT

Renesas Electronics CorporationIn Stock: 28919FGL0851DKILFT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 9FGL0851CKILFT is determined by strict equivalence across the following critical parameters:

• Frequency specification: Maximum 100MHz operation
• Input/Output configuration: 1:8 ratio with Clock/Crystal input and HCSL/LVCMOS output
• Differential signaling: No differential input, Yes differential output
• Supply voltage range: 3.135V ~ 3.465V
• Operating temperature range: -40°C ~ 85°C
• Package format: 48-VFQFN Exposed Pad (6x6mm)
• Compliance standards: ROHS3 Compliant, REACH Unaffected, EAR99 classification

The substitute part 9FGL0851DKILFT maintains identical electrical and mechanical specifications across all parameters listed above. The primary distinction is product status: the substitute transitions from Obsolete to Active status, providing continued availability and supply chain support.

Parameter Comparison

Engineering Selection Recommendations

The 9FGL0851DKILFT is a direct functional equivalent to the 9FGL0851CKILFT. Both parts are manufactured by Renesas Electronics Corporation and share identical electrical specifications, package geometry, and compliance certifications.

The primary advantage of selecting 9FGL0851DKILFT is its Active product status. This designation ensures ongoing manufacturer support, continued availability through distribution channels, and compliance with current supply chain requirements. The obsolete status of the original part necessitates transition to an actively supported alternative.

Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying environmental and regulatory requirements. The identical MSL rating (3, 168 Hours) and ECCN classification (EAR99) ensure equivalent handling, storage, and export compliance procedures.

Frequently Asked Questions (FAQ)

Q: Can 9FGL0851DKILFT be used as a direct replacement for 9FGL0851CKILFT in existing designs?

A: Yes. The parts are electrically and mechanically identical across all specified parameters. No design modifications are required for substitution.

Q: Are there differences in package dimensions between these parts?

A: No. Both parts use the 48-VFQFN Exposed Pad package in 6x6mm format. PCB footprints and assembly procedures remain unchanged.

Q: What is the significance of the product status change from Obsolete to Active?

A: Active status indicates the manufacturer continues production and distribution support. This ensures long-term availability, consistent quality, and access to technical documentation and support resources.

Q: Do the supply voltage and operating temperature ranges differ?

A: No. Both parts operate within 3.135V to 3.465V supply voltage and -40°C to 85°C temperature range. System power supply and thermal design requirements remain identical.

Q: Are compliance certifications equivalent between the two parts?

A: Yes. Both parts carry identical ROHS3 Compliant, REACH Unaffected, and EAR99 classifications. Regulatory and environmental compliance procedures are unchanged.

Q: What is the input-to-output frequency ratio for these clock generators?

A: Both parts maintain a 1:8 ratio, converting single clock or crystal inputs into eight output signals. Frequency multiplication or division characteristics are identical.

Q: Do these parts support the same input and output signal types?

A: Yes. Both accept Clock or Crystal inputs and provide HCSL and LVCMOS outputs with differential output signaling. Signal integrity and timing characteristics are equivalent.