TC03670001 MEMS Oscillator 3.6864 MHz Equivalent & Substitute Parts

Part Overview

The TC03670001 is a 3.6864 MHz MEMS-based XO (Standard) oscillator manufactured by TXC CORPORATION, featuring CMOS output, 3.3V supply voltage, and Enable/Disable functionality in a 4-SMD, No Lead surface mount package. This component is classified as Obsolete, necessitating identification of equivalent and substitute parts for ongoing design support and procurement continuity. The part maintains 725 units in current inventory stock.

Substiute Parts

TC03670001

TXC CORPORATIONIn Stock: 821TC03670001 Datasheet

Current PartRFQ

7X-3.6864MBD-T

TXC CORPORATIONIn Stock: 10247X-3.6864MBD-T Datasheet

DirectRFQ

ASE-3.6864MHZ-L-R-T

Abracon LLCIn Stock: 704ASE-3.6864MHZ-L-R-T Datasheet

DirectRFQ

DSC1001CI1-003.6864

Microchip TechnologyIn Stock: 744DSC1001CI1-003.6864 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC03670001 is determined by strict alignment with the following critical parameters:

Primary Substitution Criteria:

• Frequency: 3.6864 MHz (exact match required)
• Output Type: CMOS
• Function: Enable/Disable capability
• Operating Temperature Range: -40°C ~ 85°C (minimum)
• Mounting Type: Surface Mount
• Package Footprint: 4-SMD, No Lead with 3.20mm x 2.50mm dimensions
• Moisture Sensitivity Level: 1 (Unlimited)

Secondary Compatibility Parameters:

• Supply Voltage: 3.3V nominal (range compatibility acceptable)
• Frequency Stability: ±25ppm or better

The substitute parts are categorized into two groups:

Direct Substitutes (Functional Equivalents): Parts meeting all primary criteria with identical or superior performance characteristics.

Similar Substitutes (Package/Footprint Compatible): Parts meeting primary criteria but with different base resonator technology or package variants, requiring design verification for electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (Preferred):

The 7X-3.6864MBD-T (TXC CORPORATION) and ASE-3.6864MHZ-L-R-T (Abracon LLC) are direct functional equivalents to the TC03670001. Both parts are Active status products, ensuring long-term availability and supply chain stability. Both maintain identical frequency, output type, supply voltage, function, and operating temperature specifications. The 7X-3.6864MBD-T is manufactured by the same supplier as the original part, providing design continuity. The ASE-3.6864MHZ-L-R-T offers superior current efficiency (7mA vs. 15mA maximum supply current) and includes ROHS3 compliance certification.

For Alternative Substitution (Design Verification Required):

The DSC1001CI1-003.6864 (Microchip Technology) is a similar substitute with MEMS base resonator technology matching the original TC03670001. This part offers superior frequency stability (±10ppm vs. ±25ppm), lower maximum supply current (6.3mA), and extended supply voltage range (1.8V ~ 3.3V). However, the package variant differs (4-VDFN vs. 4-SMD, No Lead), requiring PCB layout verification and footprint compatibility assessment. The part includes AEC-Q100 automotive qualification rating and ROHS3 compliance. Current supply in disable mode is specified at 15µA.

Compliance and Certification:

All substitute parts maintain Moisture Sensitivity Level 1 (Unlimited) and ECCN EAR99 classification, matching the original part's regulatory profile. The 7X-3.6864MBD-T carries RoHS Compliant status. Both ASE-3.6864MHZ-L-R-T and DSC1001CI1-003.6864 carry ROHS3 Compliant and REACH Unaffected certifications, providing enhanced environmental compliance documentation.

Frequently Asked Questions (FAQ)

Q: Can the 7X-3.6864MBD-T directly replace the TC03670001 without PCB modifications?

A: Yes. The 7X-3.6864MBD-T maintains identical frequency (3.6864 MHz), output type (CMOS), supply voltage (3.3V), function (Enable/Disable), operating temperature range (-40°C ~ 85°C), and footprint dimensions (3.20mm x 2.50mm). Both use 4-SMD, No Lead packages with Moisture Sensitivity Level 1. The primary difference is the base resonator technology (Crystal vs. MEMS) and maximum supply current (15mA vs. unspecified). No PCB layout changes are required.

Q: What is the key difference between the TC03670001 and ASE-3.6864MHZ-L-R-T?

A: Both parts share identical frequency, output type, supply voltage, function, and operating temperature specifications. The ASE-3.6864MHZ-L-R-T uses crystal-based resonator technology versus MEMS in the original part. The ASE variant offers lower maximum supply current (7mA) and includes current specification in disable mode (10µA). Height-seated maximum is 0.047" (1.20mm) versus 0.031" (0.80mm) for the original. Both maintain identical footprint dimensions and Moisture Sensitivity Level 1.

Q: Is the DSC1001CI1-003.6864 a suitable replacement for the TC03670001?

A: The DSC1001CI1-003.6864 meets all primary substitution criteria: 3.6864 MHz frequency, CMOS output, Enable/Disable function, 3.3V supply capability, -40°C ~ 85°C operating range, and 3.20mm x 2.50mm footprint dimensions. However, the package differs (4-VDFN vs. 4-SMD, No Lead), requiring PCB footprint verification. The part offers superior frequency stability (±10ppm vs. ±25ppm) and lower supply current (6.3mA). Design validation is necessary to confirm pin compatibility and PCB layout feasibility.

Q: What are the supply current implications when selecting a substitute?

A: The TC03670001 does not specify maximum supply current. The 7X-3.6864MBD-T specifies 15mA maximum. The ASE-3.6864MHZ-L-R-T specifies 7mA maximum with 10µA in disable mode. The DSC1001CI1-003.6864 specifies 6.3mA maximum with 15µA in disable mode. For power-sensitive applications, the ASE-3.6864MHZ-L-R-T and DSC1001CI1-003.6864 offer lower current consumption. Verify power budget requirements against the selected substitute's current specifications.

Q: Are all substitute parts available in the same packaging format?

A: No. The 7X-3.6864MBD-T and ASE-3.6864MHZ-L-R-T are supplied in Tape & Reel (TR) format. The DSC1001CI1-003.6864 is supplied in Tube format. The original TC03670001 packaging format is not specified. Verify procurement and assembly process compatibility with the selected packaging format.

Q: What compliance certifications should I verify for regulatory requirements?

A: The 7X-3.6864MBD-T carries RoHS Compliant certification. The ASE-3.6864MHZ-L-R-T and DSC1001CI1-003.6864 carry ROHS3 Compliant and REACH Unaffected certifications. All parts maintain ECCN EAR99 classification and Moisture Sensitivity Level 1 (Unlimited). The DSC1001CI1-003.6864 includes AEC-Q100 automotive qualification rating. Confirm compliance requirements for your specific application and regulatory jurisdiction.

Q: What is the significance of frequency stability differences between substitutes?

A: The TC03670001, 7X-3.6864MBD-T, and ASE-3.6864MHZ-L-R-T specify ±25ppm frequency stability. The DSC1001CI1-003.6864 specifies ±10ppm, representing superior stability performance. For applications with tight frequency tolerance requirements, the DSC1001CI1-003.6864 offers enhanced performance. For applications where ±25ppm stability is acceptable, all substitutes are equivalent in this parameter.