The Renesas Electronics Corporation 8N4Q001EG-1108CDI is a precision clock oscillator from the FemtoClock® NG series, delivering a fixed 100MHz output frequency in a compact 10-CLCC (7x5mm) surface mount package. This quad-output clock generation device supports high-speed synchronous system architectures where distributed clock signals with minimal skew and jitter are required across multiple circuit nodes.
Operating from a tightly regulated 3.135V to 3.465V supply with a typical current draw of 160mA, the 8N4Q001EG-1108CDI provides stable clock generation across an industrial temperature range of -40°C to 85°C. The FemtoClock® NG architecture employs advanced phase-locked loop synthesis and low-noise output buffering to achieve sub-picosecond jitter performance, making this oscillator suitable for applications where timing accuracy directly impacts system throughput and signal integrity.
The 10-CLCC package configuration offers a space-efficient footprint for densely populated board layouts common in networking equipment, storage systems, and telecommunications infrastructure. Multiple differential or single-ended outputs enable clock distribution to processors, FPGAs, SerDes interfaces, and high-speed memory controllers without requiring external fanout buffers. The quad-output topology reduces component count and board complexity in systems requiring phase-aligned clocks across parallel data paths.
With MSL-1 moisture sensitivity classification, the device requires no special baking procedures prior to reflow soldering, simplifying manufacturing processes and reducing handling constraints. ROHS3 compliance ensures compatibility with lead-free assembly requirements, while REACH unaffected status confirms absence of substances of very high concern under European chemical regulations.
The 8N4Q001 base series supports various frequency configurations beyond the 100MHz variant, allowing designers to standardize on a common footprint and pinout while selecting appropriate output frequencies for different subsystem requirements. This clock oscillator addresses timing needs in data center switches, enterprise routers, wireless base stations, and test instrumentation where deterministic clock delivery with minimal phase noise is fundamental to achieving specified system performance metrics.
8N4Q001EG-1108CDI (1)
Replacement Search for Renesas 8N4Q001EG-1108CDI: Avoiding Clock Oscillator Fit and Timing Risks
When a 100MHz clock oscillator such as the Renesas Electronics Corporation 8N4Q001EG-1108CDI becomes constrained by lead time, lifecycle planning, cost pressure, or second-source qualification needs, selecting a replacement is not just a matter of matching frequency. The replacement device must support the required output logic, supply voltage, phase noise or jitter tolerance, enable behavior, PCB footprint, operating temperature, and production handling requirements.
The original Renesas 8N4Q001EG-1108CDI is a FemtoClock NG clock oscillator in a 10-CLCC 7x5mm surface-mount package. Because it is not a generic four-pad oscillator module, direct drop-in substitution should be treated cautiously. In many cases, the exact Renesas 8N4Q001EG-1108CDI remains the safest replacement. Functional alternatives may require schematic, PCB, or firmware-level review.
Candidate replacement or alternative part numbers considered in this engineering comparison include:
- Renesas Electronics Corporation 8N4Q001EG-1108CDI
- Abracon
ASEMB-100.000MHZ-LY-T
ASEMB-100.000MHZ-LY-T
Abracon LLC
MEMS OSC XO 100.0000MHZ CMOS SMD
11500
- Microchip Technology
DSC1001DI5-100.0000T
DSC1001DI5-100.0000T
Microchip Technology
MEMS OSC XO 100.0000MHZ CMOS SMD
286891
- Kyocera AVX KC7050K100.000C10E00
- ECS Inc.
ECS-3953M-100-BN-TR
ECS-3953M-100-BN-TR
ECS Inc.
XTAL OSC XO 10.0000MHZ HCMOS SMD
11174
- SiTime SiT8208AI-3F-33E-100.000000T
What the Renesas 8N4Q001EG-1108CDI FemtoClock NG Oscillator Means for Replacement Selection
The Renesas Electronics Corporation 8N4Q001EG-1108CDI is a Clock/Timing IC oscillator from the FemtoClock NG series. It provides a 100MHz clock output, operates from a 3.135V to 3.465V supply range, and is specified for -40°C to +85°C operation. It is supplied in a 10-CLCC 7x5mm surface-mount package and packaged in tray format.
Key characteristics affecting replacement decisions include:
| Parameter | Renesas 8N4Q001EG-1108CDI specification | Replacement impact |
|---|---|---|
| Manufacturer | Renesas Electronics Corporation | Exact manufacturer continuity reduces qualification risk |
| Series | FemtoClock NG | Indicates timing-focused clock oscillator architecture rather than a commodity XO |
| Frequency | 100MHz | Any alternative must match 100MHz nominal frequency and tolerance requirements |
| Supply voltage | 3.135V to 3.465V | Replacement should support 3.3V operation with suitable voltage margin |
| Supply current | 160mA | Power rail capacity and thermal budget should be checked when changing device type |
| Package | 10-CLCC 7x5mm | Most standard 7x5mm oscillator modules are not pin-compatible |
| Mounting | Surface mount | Reflow profile, land pattern, and height clearance must be reviewed |
| Temperature range | -40°C to +85°C | Industrial-temperature alternatives are preferred for embedded, telecom, and automation designs |
| Compliance | RoHS3, REACH unaffected, MSL 1 | Manufacturing and storage controls are easier to maintain |
The original part is typically used where a stable 100MHz reference clock is needed for FPGAs, processors, Ethernet PHYs, high-speed converters, communication timing, industrial controllers, test equipment, and clock-distribution networks. In these applications, replacement selection depends on more than nominal frequency. The output waveform, edge rate, additive jitter, enable or frequency-select pins, and PCB routing can influence system timing margins.
For an existing PCB designed around the 10-CLCC Renesas 8N4Q001EG-1108CDI, the exact same part number is the preferred drop-in option. Standard 4-pad or 6-pad 7x5mm oscillators may be electrically suitable as 100MHz clock sources but usually require PCB layout changes or adapter evaluation.
Candidate Alternatives to Renesas 8N4Q001EG-1108CDI for 100MHz Clock Replacement
The following table compares the original Renesas 8N4Q001EG-1108CDI with practical 100MHz oscillator alternatives. These parts should be evaluated as replacement candidates, not assumed to be direct equivalents.
| Manufacturer | Part Number | Key Specifications | Product Features | Typical Applications | Why It Can Replace the Original Part | Main Differences or Limitations | Recommended Usage |
|---|---|---|---|---|---|---|---|
| Renesas Electronics Corporation | 8N4Q001EG-1108CDI | 100MHz, 3.135V to 3.465V, 160mA, -40°C to +85°C, 10-CLCC 7x5mm | FemtoClock NG clock oscillator, surface-mount, RoHS3, MSL 1 | FPGA reference clocks, networking equipment, industrial timing, communication clocking | Exact original device; best option where pinout, performance, and qualification must remain unchanged | Availability and pricing may vary by supply channel | Use for direct replacement, production continuity, and lowest redesign effort |
| Abracon |
ASEMB-100.000MHZ-LY-T
Abracon LLC
MEMS OSC XO 100.0000MHZ CMOS SMD
11500
| 100MHz MEMS oscillator, typically 3.3V, surface-mount oscillator package | MEMS-based stability, compact SMD oscillator, broad supply options depending on ordering code | Embedded systems, microcontrollers, industrial control, general 100MHz clocks | Can provide a 100MHz CMOS-style reference where the circuit accepts a standard oscillator output | Not pin-compatible with 10-CLCC; output type, tolerance, jitter, and enable pin behavior must be verified | Suitable for redesigns or adapter-based replacements where low-profile MEMS timing is acceptable |
| Microchip Technology |
DSC1001DI5-100.0000T
Microchip Technology
MEMS OSC XO 100.0000MHZ CMOS SMD
286891
| 100MHz MEMS oscillator, 3.3V-class operation, industrial-temperature options | Low-power MEMS oscillator family, no quartz crystal, good shock and vibration tolerance | Industrial electronics, portable equipment, embedded controllers, communication modules | Useful when a 100MHz clock is required and MEMS robustness is preferred | Usually not a direct mechanical substitute; jitter and output drive must be compared against the Renesas timing budget | Best for ruggedized or vibration-prone designs after electrical validation |
| Kyocera AVX | KC7050K100.000C10E00 | 100MHz crystal oscillator, 7.0x5.0mm class package, 3.3V-class options | Quartz-based XO, established oscillator format, stable frequency source | Networking boards, storage systems, processors, local clock generation | Can replace the clock-source function in designs that can accept a standard 7x5mm oscillator footprint | Pinout differs from 10-CLCC; phase noise and enable logic must be reviewed | Suitable for PCB revisions needing a conventional 100MHz XO |
| ECS Inc. |
ECS-3953M-100-BN-TR
ECS Inc.
XTAL OSC XO 10.0000MHZ HCMOS SMD
11174
| 100MHz SMD oscillator, 3.3V-class operation, surface-mount | Standard packaged oscillator, tape-and-reel supply, common production format | Digital logic clocks, processors, embedded boards, communication peripherals | Provides a 100MHz reference clock for systems not dependent on the original CLCC pinout | Mechanical footprint and electrical details may differ; confirm output load and rise/fall time | Good for cost-sensitive redesigns where a standard oscillator package is acceptable |
| SiTime | SiT8208AI-3F-33E-100.000000T | 100MHz MEMS oscillator, 3.3V, industrial-temperature option, SMD package | Programmable MEMS oscillator platform, strong supply flexibility, shock-resistant timing | Industrial, networking, servers, storage, FPGA clocking | Can serve as a configurable 100MHz replacement clock source with suitable ordering configuration | Not a drop-in 10-CLCC equivalent; configuration code must match voltage, output, stability, and enable requirements | Suitable for second-source planning and configurable oscillator strategies |
The strongest replacement path depends on whether the requirement is “same part on the same PCB” or “same 100MHz timing function in a redesigned circuit.” For the former, Renesas 8N4Q001EG-1108CDI is the practical equivalent. For the latter, Abracon
ASEMB-100.000MHZ-LY-T
, Microchip
ASEMB-100.000MHZ-LY-T
Abracon LLC
MEMS OSC XO 100.0000MHZ CMOS SMD
11500
DSC1001DI5-100.0000T
, Kyocera AVX KC7050K100.000C10E00,
DSC1001DI5-100.0000T
Microchip Technology
MEMS OSC XO 100.0000MHZ CMOS SMD
286891
ECS-3953M-100-BN-TR
, and SiTime SiT8208AI-3F-33E-100.000000T may be evaluated as functional 100MHz oscillator alternatives.
ECS-3953M-100-BN-TR
ECS Inc.
XTAL OSC XO 10.0000MHZ HCMOS SMD
11174
Engineering Comparison of Renesas 8N4Q001EG-1108CDI Replacement Options
A replacement comparison should start with the constraint that is hardest to change. If the PCB cannot be modified, only the exact Renesas 8N4Q001EG-1108CDI should be treated as a direct replacement. If the design can be revised, the selection can shift toward supply availability, oscillator technology, jitter performance, cost, and package strategy.
| Decision factor | Renesas 8N4Q001EG-1108CDI | Abracon ASEMB-100.000MHZ-LY-T | Microchip DSC1001DI5-100.0000T | Kyocera AVX KC7050K100.000C10E00 | ECS-3953M-100-BN-TR | SiTime SiT8208AI-3F-33E-100.000000T |
|---|---|---|---|---|---|---|
| Electrical compatibility | Exact match to original design | Must confirm output format, voltage, load, and enable behavior | Must confirm output format and jitter against system requirements | Suitable if standard XO output is accepted | Suitable for general 100MHz clock input circuits | Configurable option; ordering code must match required output and supply |
| Mechanical compatibility | Direct fit for original 10-CLCC 7x5mm footprint | Usually requires layout change or adapter | Usually requires layout change or adapter | 7x5mm class package, but not the same 10-CLCC footprint | Standard oscillator footprint, not direct CLCC replacement | Not direct CLCC replacement |
| Performance consideration | Designed as a FemtoClock NG timing IC | MEMS performance depends on selected stability and jitter grade | MEMS oscillator with good environmental tolerance | Quartz XO behavior, typically stable for fixed-frequency applications | General-purpose oscillator performance | Programmable MEMS option with broad configuration flexibility |
| Reliability and environment | -40°C to +85°C, MSL 1, RoHS3 | MEMS construction can help with shock and vibration | MEMS construction supports rugged applications | Quartz device; proven in communication and embedded hardware | Conventional oscillator reliability | MEMS platform useful for harsh environments and supply continuity |
| Package availability | Tray; original inventory may fluctuate | Common SMD oscillator supply formats | Tape-and-reel production availability | Common 7x5mm oscillator sourcing | Tape-and-reel production supply | Configurable supply chain flexibility |
| Cost considerations | May carry timing-IC premium | Often competitive for redesigned boards | Often competitive where ruggedness is valued | Moderate depending on tolerance and supply | Often attractive for standard clock designs | May be cost-effective when customization reduces inventory variants |
| Best-fit scenario | No PCB or firmware changes allowed | Redesign using MEMS 100MHz CMOS oscillator | Ruggedized redesign or MEMS-based second source | Quartz XO redesign with 7x5mm package preference | Cost-sensitive standard oscillator redesign | Configurable second-source or platform oscillator strategy |
| Main advantage | Lowest qualification risk | Small, flexible MEMS replacement path | Shock and vibration tolerance | Conventional quartz oscillator behavior | Broad usability and cost appeal | Ordering flexibility and MEMS robustness |
| Main limitation | Availability may drive second-source planning | Not pin-compatible | Not pin-compatible | Not a direct 10-CLCC equivalent | Must verify timing quality for high-speed systems | Requires careful ordering-code validation |
For systems using the Renesas 8N4Q001EG-1108CDI as a high-quality 100MHz reference, the replacement review should verify:
| Check item | Engineering action |
|---|---|
| Frequency | Confirm exact 100MHz nominal output and tolerance over temperature |
| Supply voltage | Confirm 3.3V rail compatibility and startup behavior |
| Output logic | Match CMOS, LVDS, LVPECL, or other required signaling before approval |
| Jitter and phase noise | Compare against the timing margin of FPGAs, PHYs, serializers, ADCs, or clock trees |
| Pinout and footprint | Treat non-10-CLCC devices as redesign candidates |
| Enable or control pins | Confirm polarity, internal pull states, and startup timing |
| Thermal and current budget | Review rail loading when replacing a 160mA timing IC |
| Compliance | Confirm RoHS, REACH, MSL, and production packaging requirements |
In summary, Renesas Electronics Corporation 8N4Q001EG-1108CDI is the correct direct replacement when the original PCB and qualification basis must be preserved. Abracon
ASEMB-100.000MHZ-LY-T
, Microchip
ASEMB-100.000MHZ-LY-T
Abracon LLC
MEMS OSC XO 100.0000MHZ CMOS SMD
11500
DSC1001DI5-100.0000T
, Kyocera AVX KC7050K100.000C10E00,
DSC1001DI5-100.0000T
Microchip Technology
MEMS OSC XO 100.0000MHZ CMOS SMD
286891
ECS-3953M-100-BN-TR
, and SiTime SiT8208AI-3F-33E-100.000000T are better viewed as functional 100MHz oscillator alternatives for redesign, second-source planning, or adapter-based validation.
ECS-3953M-100-BN-TR
ECS Inc.
XTAL OSC XO 10.0000MHZ HCMOS SMD
11174
For quotations and availability of Renesas 8N4Q001EG-1108CDI replacement parts and alternative 100MHz clock oscillator components, obtain pricing through IC-Components.com or email Info@IC-Components.com.
