TA-33.000MBD-T Equivalent & Substitute Parts

Part Overview

The TA-33.000MBD-T is a 33 MHz MEMS-based XO (Standard) oscillator manufactured by TXC CORPORATION. This component operates at 3.3V supply voltage with CMOS output, Enable/Disable function, and is housed in a 4-SMD, No Lead surface mount package. The part is classified as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Frequency	33 MHz
Output Type	CMOS
Supply Voltage	3.3V
Function	Enable/Disable
Frequency Stability	±25ppm
Operating Temperature Range	-40°C ~ 85°C
Package Type	4-SMD, No Lead
Physical Dimensions	7.00mm L x 5.00mm W
Mounting Type	Surface Mount
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TA-33.000MBD-T is determined by strict equivalence across the following critical parameters:

Frequency Match: 33 MHz (exact)

Output Configuration: CMOS output type

Supply Voltage: 3.3V operation

Functional Capability: Enable/Disable control

Frequency Stability: ±25ppm tolerance

Operating Temperature Range: -40°C ~ 85°C

Package Specification: 4-SMD, No Lead form factor

Physical Footprint: 7.00mm x 5.00mm base dimensions

Mounting Technology: Surface Mount

The substitute part 510CBA33M0000AAGR, manufactured by Skyworks Solutions Inc., satisfies all critical electrical and mechanical parameters required for direct substitution. The primary distinction between the main part and substitute is the resonator technology (MEMS versus Crystal) and maximum supply current specification, neither of which affects functional compatibility in applications designed for the TA-33.000MBD-T.

Parameter Comparison

Parameter	TA-33.000MBD-T (TXC)	510CBA33M0000AAGR (Skyworks)	Match Status
Frequency	33 MHz	33 MHz	Equivalent
Output Type	CMOS	CMOS	Equivalent
Supply Voltage	3.3V	3.3V	Equivalent
Function	Enable/Disable	Enable/Disable	Equivalent
Frequency Stability	±25ppm	±25ppm	Equivalent
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	Equivalent
Package / Case	4-SMD, No Lead	4-SMD, No Lead	Equivalent
Physical Dimensions	7.00mm x 5.00mm	7.00mm x 5.00mm	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Maximum Seated Height	1.00mm	1.80mm	Compatible*
Current - Supply (Max)	25mA	26mA	Compatible
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent
Product Status	Obsolete	Active	Substitute Available

*Maximum seated height difference (1.00mm vs 1.80mm) requires PCB layout verification for clearance in height-constrained applications.

Engineering Selection Recommendations

The 510CBA33M0000AAGR from Skyworks Solutions Inc. is the direct functional equivalent for the obsolete TA-33.000MBD-T. Selection of this substitute is based on:

Electrical Equivalence: All critical electrical parameters—frequency, output type, supply voltage, function, frequency stability, and operating temperature range—are identical.

Mechanical Compatibility: Package type, footprint dimensions, and mounting technology are identical, enabling direct PCB layout reuse without redesign.

Product Status: The substitute part is Active, ensuring long-term availability and supply chain continuity.

Compliance Alignment: Both parts share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Physical Consideration: The substitute part has a maximum seated height of 1.80mm compared to 1.00mm for the original part. Applications with vertical clearance constraints below 1.80mm require verification of available board-to-component clearance.

Frequently Asked Questions (FAQ)

Q: Can the 510CBA33M0000AAGR be used as a direct replacement for the TA-33.000MBD-T without PCB modifications?

A: Yes, for applications without vertical height constraints. The footprint and electrical interface are identical. However, the increased seated height (1.80mm vs 1.00mm) must be verified against available clearance in the assembly.

Q: What is the difference between MEMS and Crystal resonator technology in these oscillators?

A: The TA-33.000MBD-T uses MEMS (Micro-Electro-Mechanical Systems) resonator technology, while the 510CBA33M0000AAGR uses Crystal resonator technology. Both deliver identical frequency stability (±25ppm) and operating characteristics for this application. The choice between technologies does not affect functional compatibility.

Q: Are there any differences in supply current requirements?

A: Maximum supply current is 25mA for the TA-33.000MBD-T and 26mA for the 510CBA33M0000AAGR. This 1mA difference is negligible for most applications and does not require power supply redesign.

Q: Why is the TA-33.000MBD-T classified as Obsolete?

A: Obsolete status indicates the part is no longer manufactured by TXC CORPORATION. The 510CBA33M0000AAGR, with Active status, provides continued availability for this frequency and specification.

Q: What packaging format is the substitute part supplied in?

A: The 510CBA33M0000AAGR is supplied in Tape & Reel (TR) format, standard for high-volume surface mount component distribution.

Q: Are both parts subject to the same moisture sensitivity requirements?

A: Yes. Both parts have Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity constraints during storage or handling.

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