TC-35.328MBE-T MEMS Oscillator Equivalent & Substitute Parts

Part Overview

The TC-35.328MBE-T is a 35.328 MHz MEMS-based XO (Standard) oscillator manufactured by TXC CORPORATION. This component operates at 3.3V with CMOS output and integrated Enable/Disable functionality, housed in a compact 4-SMD, No Lead package measuring 3.20mm × 2.50mm. The part is classified as Obsolete, making identification of compatible substitute components essential for ongoing production and maintenance applications.

Substiute Parts

TC-35.328MBE-T

TXC CORPORATIONIn Stock: 1007TC-35.328MBE-T Datasheet

Current PartRFQ

7X-35.328MBE-T

TXC CORPORATIONIn Stock: 7307X-35.328MBE-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC-35.328MBE-T is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 35.328 MHz (exact match required)
• Output Type: CMOS
• Supply Voltage: 3.3V
• Function: Enable/Disable capability
• Frequency Stability: ±50ppm
• Operating Temperature Range: -40°C ~ 85°C
• Package Type: 4-SMD, No Lead
• Physical Dimensions: 3.20mm × 2.50mm

Allowable Variations:

• Base Resonator Type: MEMS or Crystal (both acceptable for this frequency and application)
• Maximum Supply Current: Substitute may be lower than or equal to 25mA
• Maximum Seated Height: Substitute may be lower than or equal to 0.80mm
• Product Status: Active status preferred for ongoing availability
• Packaging Format: Tape & Reel acceptable for production environments

The substitute part 7X-35.328MBE-T meets all mandatory matching parameters and represents a direct functional equivalent with enhanced availability status.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: 7X-35.328MBE-T

The 7X-35.328MBE-T is the direct equivalent for TC-35.328MBE-T applications. Selection rationale:

1. Functional Equivalence: All critical electrical parameters match exactly, including frequency, output type, supply voltage, enable/disable function, and frequency stability specification.

2. Physical Compatibility: Identical package footprint (4-SMD, No Lead) and base dimensions (3.20mm × 2.50mm) ensure direct PCB placement compatibility. The increased seated height (1.10mm vs. 0.80mm) remains within typical board clearance tolerances for surface-mount applications.

3. Improved Availability: Active product status ensures continued supply and manufacturing support, eliminating obsolescence risk associated with the TC-35.328MBE-T.

4. Enhanced Compliance: RoHS Compliant certification and REACH Unaffected status provide regulatory alignment for current manufacturing standards.

5. Current Efficiency: Maximum supply current of 20mA is lower than the main part specification of 25mA, representing improved power efficiency without functional compromise.

6. Packaging Format: Tape & Reel packaging is standard for production environments and facilitates automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the 7X-35.328MBE-T directly replace the TC-35.328MBE-T without circuit modifications?

A: Yes. The 7X-35.328MBE-T provides direct functional replacement. All electrical parameters, frequency output, supply voltage requirements, and enable/disable control signals are identical. No circuit modifications are required.

Q: What is the significance of the different base resonator types (MEMS vs. Crystal)?

A: Both MEMS and Crystal resonators deliver the same frequency output (35.328 MHz), frequency stability (±50ppm), and operating characteristics for this application. The resonator type difference does not affect electrical performance or circuit compatibility.

Q: Does the increased seated height of the 7X-35.328MBE-T (1.10mm vs. 0.80mm) create compatibility issues?

A: No. The 0.30mm height difference remains within standard PCB clearance specifications for surface-mount components. Verify clearance in your specific board layout, but this difference typically presents no practical constraint.

Q: Is the lower maximum supply current (20mA vs. 25mA) a limitation?

A: No. The lower maximum current specification of the 7X-35.328MBE-T indicates improved efficiency. This specification represents the maximum current the component will draw under normal operating conditions. Actual current consumption will be identical to the original part.

Q: What is the impact of the Tape & Reel packaging format?

A: Tape & Reel packaging is the standard format for production assembly environments. It enables automated pick-and-place equipment operation and is compatible with standard manufacturing processes. This format is preferred for volume production.

Q: Are there any compliance or regulatory differences between the two parts?

A: The 7X-35.328MBE-T carries RoHS Compliant and REACH Unaffected certifications, providing enhanced regulatory alignment with current environmental and safety standards. The TC-35.328MBE-T compliance status is not specified in available documentation.

Q: What is the inventory status for the substitute part?

A: The 7X-35.328MBE-T has 663 pieces of new original stock currently available, ensuring immediate procurement capability for production requirements.