NB6L11DR2 Equivalent & Substitute Parts

Part Overview

The NB6L11DR2 is a clock fanout buffer (distribution) and translator IC manufactured by onsemi, designed for 1:2 clock distribution at frequencies up to 6 GHz. This component accepts multiple input signal types (CML, LVCMOS, LVDS, LVNECL, LVPECL, LVTTL) and outputs ECL-level signals in an 8-SOIC surface mount package.

The NB6L11DR2 is classified as obsolete. Equivalent substitute parts are necessary for new designs, production continuity, and long-term component availability. Active alternatives maintain functional compatibility while offering improved product status and compliance certifications.

Substiute Parts

NB6L11DR2

onsemiIn Stock: 1032NB6L11DR2 Datasheet

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SY100EP11UZG

Microchip TechnologyIn Stock: 2173SY100EP11UZG Datasheet

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SY100EP11UZG-TR

Microchip TechnologyIn Stock: 3421SY100EP11UZG-TR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the NB6L11DR2 are qualified based on the following electrical and mechanical compatibility criteria:

Functional Equivalence:

• 1:2 input-to-output ratio maintained
• Differential input and output capability preserved
• 8-SOIC package form factor match

Electrical Compatibility:

• Maximum frequency rating of 3 GHz or higher (NB6L11DR2 operates at 6 GHz maximum; substitutes at 3 GHz minimum support the same signal distribution function)
• Supply voltage range overlap: substitutes must support the 2.375V ~ 3.465V operating window
• Operating temperature range: -40°C ~ 85°C maintained
• ECL or ECL-compatible output levels

Mechanical Compatibility:

• Surface mount technology
• 8-SOIC package with 0.154" (3.90mm) width

The substitute parts SY100EP11UZG and SY100EP11UZG-TR (Microchip Technology) meet all substitution criteria. Both are active products with identical package specifications, matching input/output ratios, and overlapping supply voltage and temperature ranges. The primary difference between these substitutes is packaging format: tube versus tape & reel.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The NB6L11DR2 is obsolete. SY100EP11UZG and SY100EP11UZG-TR are both active products, ensuring long-term availability and manufacturing support.

Compliance and Certification: Both substitute parts are ROHS3 compliant, meeting current regulatory requirements. The NB6L11DR2 is RoHS non-compliant. For applications subject to RoHS directives or customer compliance mandates, the Microchip substitutes are required.

Packaging Selection:

• SY100EP11UZG (Tube packaging): Suitable for lower-volume applications, prototype builds, and component evaluation
• SY100EP11UZG-TR (Tape & Reel packaging): Optimized for high-volume production and automated assembly processes

Frequency Derating: The NB6L11DR2 supports 6 GHz operation; substitute parts support 3 GHz maximum. Applications operating below 3 GHz are fully compatible. Applications requiring operation above 3 GHz require alternative component selection outside this substitute group.

Supply Voltage Flexibility: Substitute parts support an extended supply voltage range (2.375V ~ 5.5V) compared to the NB6L11DR2 (2.375V ~ 3.465V), providing greater design flexibility for mixed-voltage systems.

Frequently Asked Questions (FAQ)

Q: Can SY100EP11UZG and SY100EP11UZG-TR be used interchangeably?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format: tube versus tape & reel. Selection depends on procurement and assembly requirements, not functional compatibility.

Q: What is the maximum frequency limitation when substituting with SY100EP11UZG or SY100EP11UZG-TR?

A: The substitute parts are rated for 3 GHz maximum frequency. The NB6L11DR2 supports 6 GHz. If your application requires operation above 3 GHz, these substitutes are not suitable. Designs operating at 3 GHz or below are fully compatible.

Q: Are the input signal types compatible between NB6L11DR2 and the substitute parts?

A: The NB6L11DR2 accepts CML, LVCMOS, LVDS, LVNECL, LVPECL, and LVTTL inputs. The substitute parts accept ECL, LVECL, LVPECL, and PECL inputs. There is overlap in LVPECL and ECL-compatible signal types. Verify your specific input signal type against the substitute part's input specifications before selection.

Q: Do the substitute parts require different PCB layout or signal routing?

A: Both substitute parts use the identical 8-SOIC package footprint. PCB layout, trace routing, and signal integrity considerations remain unchanged. No redesign of the PCB layout is necessary.

Q: What is the impact of the extended supply voltage range in the substitute parts?

A: The substitute parts support 2.375V ~ 5.5V, while the NB6L11DR2 supports 2.375V ~ 3.465V. This extended range provides design flexibility for systems with higher supply voltages. Existing designs operating within the NB6L11DR2 voltage window are unaffected.

Q: Are there any thermal or power dissipation differences?

A: Thermal and power dissipation characteristics are not provided in the component specifications. Consult the detailed datasheets for both the NB6L11DR2 and substitute parts for thermal performance data specific to your operating conditions.

Q: What is the lead time and availability difference between tube and tape & reel packaging?

A: Inventory levels are provided: SY100EP11UZG (Tube) has 2,132 pcs in stock; SY100EP11UZG-TR (Tape & Reel) has 3,400 pcs in stock. Tape & reel format typically offers faster delivery for high-volume orders due to automated handling compatibility.