TA-3.6864MBD-T MEMS Oscillator Equivalent & Substitute Parts

Part Overview

The TA-3.6864MBD-T is a 3.6864 MHz MEMS-based XO (Standard) oscillator manufactured by TXC CORPORATION, designed for CMOS applications requiring enable/disable functionality at 3.3V supply voltage. This part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing system support, design updates, and procurement continuity. The oscillator operates across the industrial temperature range of -40°C to 85°C with ±25ppm frequency stability and is packaged in a compact 4-SMD, No Lead surface mount configuration measuring 7.00mm × 5.00mm.

Substiute Parts

TA-3.6864MBD-T

TXC CORPORATIONIn Stock: 1020TA-3.6864MBD-T Datasheet

Current PartRFQ

510CBB3M68640AAGR

Skyworks Solutions Inc.In Stock: 1134510CBB3M68640AAGR Datasheet

DirectRFQ

ASVMPC-3.6864MHZ-LR-T

Abracon LLCIn Stock: 1209ASVMPC-3.6864MHZ-LR-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TA-3.6864MBD-T are identified based on strict alignment with the following critical and important parameters:

Critical Parameters (Must Match):

• Frequency: 3.6864 MHz
• Output Type: CMOS
• Supply Voltage: 3.3V (or compatible range including 3.3V)
• Function: Enable/Disable capability

Important Parameters (Must Be Compatible):

• Operating Temperature Range: -40°C ~ 85°C minimum
• Frequency Stability: ±25ppm or better
• Mounting Type: Surface Mount
• Package Type: 4-SMD or 6-SMD configurations with compatible footprints
• Physical Dimensions: 7.00mm × 5.00mm base dimension
• Moisture Sensitivity Level: 1 (Unlimited) or equivalent

Resonator Type Consideration: While the main part uses MEMS resonator technology, substitutes may employ crystal-based resonators provided all critical electrical parameters align. The resonator type affects performance characteristics but does not preclude substitution when electrical specifications are met.

Parameter Comparison

Engineering Selection Recommendations

510CBB3M68640AAGR (Skyworks Solutions Inc.) - Direct Substitute

This part qualifies as a direct substitute based on identical frequency, output type, supply voltage, enable/disable function, operating temperature range, and frequency stability. The 510CBB3M68640AAGR maintains the same 4-SMD, No Lead package footprint and physical dimensions (7.00mm × 5.00mm). The primary difference is the crystal-based resonator technology versus MEMS in the original part. The active product status of the Skyworks part ensures long-term availability and supply chain continuity. Maximum supply current is 26mA, marginally higher than the original 25mA specification. Height difference (1.80mm versus 1.00mm) requires verification for applications with strict vertical clearance constraints.

ASVMPC-3.6864MHZ-LR-T (Abracon LLC) - Compatible Substitute

This part qualifies as a compatible substitute based on matching frequency, output type, enable/disable function, and operating temperature range. The supply voltage range of 2.25V ~ 3.6V encompasses the original 3.3V requirement. The MEMS resonator technology aligns with the original part's resonator type. The 6-SMD, No Lead Exposed Pad package differs from the original 4-SMD configuration, requiring PCB footprint redesign. Physical base dimensions remain compatible (7.00mm × 5.00mm). The Abracon part offers superior height profile (0.90mm versus 1.00mm) and lower disabled-state current consumption (22mA versus unspecified). Active product status ensures availability. RoHS3 compliance and REACH unaffected status provide regulatory alignment for new designs. Maximum supply current of 35mA exceeds the original specification and requires power budget verification.

Both substitute parts carry identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications as the original part.

Frequently Asked Questions (FAQ)

Q: Can the 510CBB3M68640AAGR be used as a direct replacement without PCB modifications?

A: The 510CBB3M68640AAGR maintains identical package type (4-SMD, No Lead) and footprint dimensions (7.00mm × 5.00mm) as the TA-3.6864MBD-T, enabling direct PCB replacement without layout changes. However, the increased height (1.80mm versus 1.00mm) must be verified against vertical clearance requirements in the application.

Q: What is the primary difference between the MEMS and crystal-based substitutes?

A: The TA-3.6864MBD-T and ASVMPC-3.6864MHZ-LR-T employ MEMS resonator technology, while the 510CBB3M68640AAGR uses a crystal-based resonator. Both technologies deliver the specified ±25ppm frequency stability and identical electrical performance at the system level. MEMS oscillators typically offer lower power consumption and better shock/vibration immunity, while crystal oscillators provide established long-term reliability data.

Q: Does the ASVMPC-3.6864MHZ-LR-T require PCB redesign?

A: Yes. The ASVMPC-3.6864MHZ-LR-T uses a 6-SMD, No Lead Exposed Pad package configuration, differing from the original 4-SMD, No Lead package. PCB footprint redesign is required. The base dimensions (7.00mm × 5.00mm) remain compatible, but pad layout and exposed pad handling differ.

Q: Are all three parts compatible with 3.3V supply voltage?

A: Yes. The TA-3.6864MBD-T and 510CBB3M68640AAGR operate at fixed 3.3V supply. The ASVMPC-3.6864MHZ-LR-T operates across 2.25V ~ 3.6V range, fully encompassing 3.3V operation.

Q: What are the power consumption differences between substitutes?

A: The TA-3.6864MBD-T specifies 25mA maximum supply current. The 510CBB3M68640AAGR draws 26mA maximum (1mA higher). The ASVMPC-3.6864MHZ-LR-T draws 35mA maximum (10mA higher). Applications with strict power budgets must account for these differences. Disabled-state current consumption is 18mA (Skyworks) and 22mA (Abracon), compared to unspecified for the original part.

Q: Which substitute offers the best regulatory compliance for new designs?

A: The ASVMPC-3.6864MHZ-LR-T provides explicit RoHS3 compliance and REACH unaffected status documentation. All three parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications. For new product designs requiring documented environmental compliance, the Abracon part provides clearer regulatory alignment.

Q: Can substitutes be mixed in the same production batch?

A: No. Each substitute part has distinct electrical characteristics (particularly supply current and disabled-state behavior) and package configurations. Production batches should use a single part number to ensure consistent performance and simplify quality control, testing, and field service documentation.

Q: What is the moisture sensitivity level for all parts?

A: All three parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life without moisture bake-out requirements. Standard dry storage conditions apply.