TC-33.000MBE-T Equivalent & Substitute Parts

Part Overview

The TC-33.000MBE-T is a 33 MHz MEMS-based XO (Standard) CMOS oscillator manufactured by TXC CORPORATION. This component operates at 3.3V with Enable/Disable functionality in a 4-SMD, No Lead surface mount package. The part is classified as Obsolete, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility for ongoing production and repair applications.

Substiute Parts

TC-33.000MBE-T

TXC CORPORATIONIn Stock: 753TC-33.000MBE-T Datasheet

Current PartRFQ

7X-33.000MBE-T

TXC CORPORATIONIn Stock: 11317X-33.000MBE-T Datasheet

DirectRFQ

AU-33.000MBE-T

TXC CORPORATIONIn Stock: 701AU-33.000MBE-T Datasheet

DirectRFQ

ASE-33.000MHZ-L-C-T

Abracon LLCIn Stock: 1307ASE-33.000MHZ-L-C-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TC-33.000MBE-T are qualified based on the following criteria:

Mandatory Matching Parameters:

• Frequency: 33 MHz
• Output: CMOS
• Supply Voltage: 3.3V
• Function: Enable/Disable
• Frequency Stability: ±50ppm
• Operating Temperature: -40°C ~ 85°C
• Package/Case: 4-SMD, No Lead
• Physical Dimensions: 3.20mm x 2.50mm
• Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameters (Allowed to Differ):

• Base Resonator Type (MEMS vs. Crystal)
• Current Supply (Max): Varies by design
• Height - Seated (Max): Varies within package constraints
• Product Status: Active substitutes preferred for obsolete main part
• Packaging Format: Tape & Reel acceptable for surface mount applications

All substitute parts listed maintain identical electrical performance specifications and physical footprint compatibility with the TC-33.000MBE-T.

Parameter Comparison

Engineering Selection Recommendations

For Active Production Applications:

The AU-33.000MBE-T is the primary substitute for the obsolete TC-33.000MBE-T. This TXC CORPORATION part maintains identical electrical specifications and physical footprint while offering Active product status. The AU series includes AEC-Q100 automotive qualification, providing enhanced reliability documentation. Current consumption is reduced to 6mA maximum, offering improved power efficiency compared to the original 25mA specification.

Secondary Substitute:

The 7X-33.000MBE-T serves as an alternative TXC CORPORATION substitute with Active status. This part maintains all electrical parameters and footprint compatibility. Current consumption is 20mA, positioning it between the original TC series and the lower-power AU series.

Cross-Manufacturer Alternative:

The ASE-33.000MHZ-L-C-T from Abracon LLC provides equivalent functionality with Active product status and ROHS3 compliance. This part maintains all critical electrical and mechanical parameters. Current consumption is 13mA. The ASE series offers an alternative supply source for design continuity.

Height Consideration:

All substitute parts exhibit increased seated height (1.10mm to 1.20mm) compared to the original TC-33.000MBE-T (0.80mm). PCB layout clearance verification is required for applications with height-constrained designs.

Frequently Asked Questions (FAQ)

Q: Can the AU-33.000MBE-T directly replace the TC-33.000MBE-T without PCB modifications?

A: The AU-33.000MBE-T maintains identical electrical specifications, frequency, output type, supply voltage, and physical footprint (3.20mm x 2.50mm). Pin-to-pin compatibility is maintained. However, the seated height increases from 0.80mm to 1.10mm. PCB clearance above the component must be verified to ensure no interference with overlying assemblies or enclosures.

Q: What is the difference between MEMS and Crystal base resonators in these oscillators?

A: The TC-33.000MBE-T uses MEMS technology, while substitute parts (7X, AU, ASE) use Crystal resonators. Both technologies deliver identical frequency stability (±50ppm) and operating characteristics for this application. Crystal-based oscillators are established technology with proven long-term reliability in production environments.

Q: Why does the AU-33.000MBE-T consume significantly less current (6mA) than the original TC-33.000MBE-T (25mA)?

A: Current consumption differences reflect design optimization in the AU series. The reduced current specification is a design characteristic and does not indicate reduced functionality or performance. All electrical output specifications remain identical.

Q: Is the ASE-33.000MHZ-L-C-T from Abracon LLC fully compatible with the TC-33.000MBE-T?

A: The ASE-33.000MHZ-L-C-T maintains all mandatory electrical and mechanical parameters required for substitution. It provides cross-manufacturer sourcing capability while preserving identical frequency, output type, supply voltage, and package footprint. ROHS3 compliance provides additional environmental qualification.

Q: What does AEC-Q100 qualification on the AU-33.000MBE-T indicate?

A: AEC-Q100 is an automotive industry standard qualification demonstrating enhanced reliability testing and quality assurance. This certification is relevant for applications requiring automotive-grade component reliability documentation.

Q: Can multiple substitute parts be used interchangeably in the same design?

A: All listed substitute parts maintain identical electrical specifications and physical footprint. They are electrically interchangeable. However, height variations (0.80mm to 1.20mm) require PCB clearance verification for each specific substitute. Once clearance is confirmed for a particular substitute, that part can be used consistently in production.