TC-12.200MBD-T MEMS Oscillator Equivalent & Substitute Parts

Part Overview

The TC-12.200MBD-T is a 12.2 MHz MEMS-based XO (Standard) oscillator manufactured by TXC CORPORATION. This component operates at 3.3V with CMOS output, Enable/Disable function, and is housed in a 4-SMD, No Lead surface mount package. The part is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Substiute Parts

TC-12.200MBD-T

TXC CORPORATIONIn Stock: 932TC-12.200MBD-T Datasheet

Current PartRFQ

7X-12.200MBD-T

TXC CORPORATIONIn Stock: 10987X-12.200MBD-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TC-12.200MBD-T is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 12.2 MHz (exact match required)
• Output Type: CMOS
• Supply Voltage: 3.3V
• Function: Enable/Disable capability
• Frequency Stability: ±25ppm
• Operating Temperature Range: -40°C ~ 85°C
• Package Type: 4-SMD, No Lead
• Physical Dimensions: 3.20mm x 2.50mm
• Mounting Type: Surface Mount
• Moisture Sensitivity Level: MSL 1

The primary distinction between the main part and substitute alternatives lies in the Base Resonator technology (MEMS versus Crystal) and Product Status (Obsolete versus Active). These differences do not affect electrical or mechanical compatibility when all other parameters remain equivalent.

Parameter Comparison

Engineering Selection Recommendations

The 7X-12.200MBD-T serves as a direct functional substitute for the obsolete TC-12.200MBD-T. Both components share identical electrical specifications, frequency output, supply voltage, and package dimensions. The substitute part is classified as Active product status, ensuring continued availability and manufacturing support.

Differences requiring design consideration:

The 7X-12.200MBD-T exhibits a maximum seated height of 1.10mm compared to 0.80mm for the TC-12.200MBD-T. This 0.30mm height differential must be evaluated against PCB layout constraints and clearance requirements in the target application.

The substitute part demonstrates lower maximum supply current (15mA versus 25mA), representing improved power efficiency without compromising functional performance.

The 7X-12.200MBD-T carries RoHS Compliance certification, whereas RoHS status for the main part is not specified. This distinction is relevant for applications subject to RoHS regulatory requirements.

Both parts maintain MSL 1 (Unlimited) moisture sensitivity classification and identical ECCN/HTSUS trade classifications.

Frequently Asked Questions (FAQ)

Q: Can the 7X-12.200MBD-T directly replace the TC-12.200MBD-T in existing designs?

A: Yes. Both components share identical electrical specifications, frequency output (12.2 MHz), CMOS output type, 3.3V supply voltage, Enable/Disable function, frequency stability (±25ppm), operating temperature range (-40°C ~ 85°C), and 4-SMD, No Lead package with 3.20mm x 2.50mm footprint. PCB layout must accommodate the 1.10mm maximum seated height of the substitute part.

Q: What is the significance of the MEMS versus Crystal resonator difference?

A: The base resonator technology differs between the two parts (MEMS in TC-12.200MBD-T; Crystal in 7X-12.200MBD-T). This distinction does not affect electrical compatibility or functional performance when all other parameters remain equivalent. Both technologies deliver the specified frequency stability and operating characteristics.

Q: Are there any compliance or certification differences?

A: The 7X-12.200MBD-T is certified RoHS Compliant, while RoHS status for the TC-12.200MBD-T is not specified. Both parts are MSL 1 (Unlimited) and share identical ECCN (EAR99) and HTSUS (8542.39.0001) classifications.

Q: How does the current consumption difference affect circuit design?

A: The 7X-12.200MBD-T operates at a maximum supply current of 15mA compared to 25mA for the TC-12.200MBD-T. This 10mA reduction represents improved power efficiency. Existing power supply designs rated for 25mA will operate within specification with the substitute part.

Q: Is the height difference critical for PCB assembly?

A: The substitute part (7X-12.200MBD-T) has a maximum seated height of 1.10mm versus 0.80mm for the main part. This 0.30mm difference must be verified against PCB clearance requirements, component stacking constraints, and enclosure dimensions in the target application.

Q: Why is the TC-12.200MBD-T classified as Obsolete?

A: The TC-12.200MBD-T carries Obsolete product status, indicating discontinued manufacturing. The 7X-12.200MBD-T is classified as Active, ensuring ongoing availability and manufacturing support for new designs and production continuity.