TC-20.000MBE-T Equivalent & Substitute Parts Reference

Part Overview

The TC-20.000MBE-T is a 20 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 package measuring 3.20mm x 2.50mm. The part is classified as Obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and field replacement applications.

Substiute Parts

TC-20.000MBE-T

TXC CORPORATIONIn Stock: 762TC-20.000MBE-T Datasheet

Current PartRFQ

ASE-20.000MHZ-L-C-T

Abracon LLCIn Stock: 15252ASE-20.000MHZ-L-C-T Datasheet

DirectRFQ

LFSPXO025495

IQD Frequency ProductsIn Stock: 5442LFSPXO025495 Datasheet

DirectRFQ

SXO32C3A481-20.000M

Suntsu Electronics, Inc.In Stock: 1723SXO32C3A481-20.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC-20.000MBE-T is determined by strict alignment of the following parameters:

Critical Matching Parameters:

• Frequency: 20 MHz (exact match required)
• Output: CMOS (exact match required)
• Supply Voltage: 3.3V (exact match required)
• Function: Enable/Disable (exact match required)
• Frequency Stability: ±50ppm (exact match required)
• Operating Temperature: -40°C ~ 85°C (exact match required)
• Package / Case: 4-SMD, No Lead (exact match required)
• Physical Dimensions: 3.20mm x 2.50mm (exact match required)
• Mounting Type: Surface Mount (exact match required)

All three substitute parts listed meet these critical parameters. Substitutes differ in base resonator technology (Crystal vs. MEMS), current consumption specifications, and product status (Active vs. Obsolete). These differences do not affect functional compatibility in applications designed for the TC-20.000MBE-T.

Parameter Comparison

Engineering Selection Recommendations

ASE-20.000MHZ-L-C-T (Abracon LLC): This substitute is Active status with ROHS3 compliance and Tape & Reel packaging. Supply current is 7mA with specified disable current of 10µA. Height is 1.20mm, exceeding the main part by 0.40mm. Suitable for applications where PCB clearance accommodates increased height and lower power consumption is beneficial.

LFSPXO025495 (IQD Frequency Products): This substitute is Active status with ROHS3 compliance and Tape & Reel packaging. Supply current is 12mA. Height is 1.20mm. Moisture Sensitivity Level is Not Applicable. Suitable for applications requiring crystal-based resonator technology with standard production availability.

SXO32C3A481-20.000M (Suntsu Electronics, Inc.): This substitute is Active status with ROHS3 compliance and Bulk packaging. Supply current is 10mA. Height is 1.20mm. Suitable for high-volume applications where bulk packaging reduces component cost.

All three substitutes are electrically and mechanically compatible with the TC-20.000MBE-T for applications requiring 20 MHz CMOS oscillators with Enable/Disable function at 3.3V supply.

Frequently Asked Questions (FAQ)

Q: Can the TC-20.000MBE-T be directly replaced with any of these substitutes?

A: Yes. All three substitute parts meet the critical electrical and mechanical parameters: 20 MHz frequency, CMOS output, 3.3V supply, Enable/Disable function, ±50ppm stability, -40°C to 85°C operating range, 4-SMD No Lead package, and 3.20mm x 2.50mm footprint. PCB layout compatibility is maintained.

Q: What is the primary difference between the main part and substitutes?

A: The TC-20.000MBE-T uses MEMS resonator technology, while all substitutes use crystal-based resonators. Both technologies deliver identical electrical performance within the specified parameters. The main part is Obsolete; all substitutes are Active status.

Q: Does the increased height of substitute parts affect PCB assembly?

A: Substitute parts have a maximum seated height of 1.20mm compared to 0.80mm for the main part, representing a 0.40mm increase. PCB design must accommodate this height difference. Verify clearance with surrounding components and solder reflow profiles.

Q: Which substitute offers the lowest power consumption?

A: The ASE-20.000MHZ-L-C-T provides the lowest supply current at 7mA maximum, with specified disable current of 10µA. This is beneficial for battery-powered or low-power applications.

Q: Are all substitutes RoHS compliant?

A: Yes. All three substitutes are ROHS3 Compliant. The main part RoHS status is not specified.

Q: What packaging options are available for substitutes?

A: ASE-20.000MHZ-L-C-T and LFSPXO025495 are supplied in Tape & Reel (TR) packaging. SXO32C3A481-20.000M is supplied in Bulk packaging. Select based on production volume and assembly line requirements.

Q: Can these parts be used interchangeably in existing designs?

A: Electrical interchangeability is confirmed. Mechanical interchangeability requires verification of PCB clearance for the increased 1.20mm height. Solder reflow parameters should be validated for the substitute part's thermal characteristics.