TB-20.000MBE-T Equivalent & Substitute Parts

Part Overview

The TB-20.000MBE-T is a 20 MHz MEMS-based XO (Standard) oscillator manufactured by TXC CORPORATION, featuring CMOS output, 3.3V supply voltage, and Enable/Disable functionality in a 4-SMD, No Lead surface mount package. The product is classified as Obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing system support and new production requirements.

Substiute Parts

TB-20.000MBE-T

TXC CORPORATIONIn Stock: 934TB-20.000MBE-T Datasheet

Current PartRFQ

7C-20.000MBE-T

TXC CORPORATIONIn Stock: 8527C-20.000MBE-T Datasheet

DirectRFQ

AC20070001

TXC CORPORATIONIn Stock: 1166AC20070001 Datasheet

DirectRFQ

CPPLC5LZ-A7BP-20.0TS

Cardinal Components Inc.In Stock: 844CPPLC5LZ-A7BP-20.0TS Datasheet

DirectRFQ

SXO53C3A481-20.000M

Suntsu Electronics, Inc.In Stock: 3828SXO53C3A481-20.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TB-20.000MBE-T is determined by strict compliance with the following parameters:

Critical Matching Parameters:

• Frequency: 20 MHz (exact match required)
• Output Type: 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 Range: -40°C ~ 85°C (exact match required)
• Package / Case: 4-SMD, No Lead (exact match required)
• Physical Dimensions: 5.00mm x 3.20mm (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

All substitute parts listed below satisfy these critical parameters. Variations in base resonator type (MEMS versus Crystal), current consumption, maximum seated height, and product status are secondary considerations that do not affect functional substitution capability.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: SXO53C3A481-20.000M

The SXO53C3A481-20.000M from Suntsu Electronics, Inc. is the preferred substitute. This part maintains Active product status, demonstrates the lowest maximum supply current (16mA), and carries ROHS3 compliance certification. The crystal-based resonator provides established reliability characteristics for production environments. Inventory availability of 3733 pieces supports immediate procurement requirements.

Secondary Recommendation: CPPLC5LZ-A7BP-20.0TS

The CPPLC5LZ-A7BP-20.0TS from Cardinal Components Inc. offers FIPO™ CPPL series technology with Active product status and ROHS3 compliance. This part matches the original supply current specification (25mA) and includes specified disable-mode current (50µA). Tape & Reel packaging supports high-volume production workflows.

Tertiary Recommendation: 7C-20.000MBE-T

The 7C-20.000MBE-T from TXC CORPORATION maintains manufacturer continuity and Active product status. As a direct TXC alternative within the same product family, this part provides organizational supply chain consistency. Tape & Reel packaging is available. Maximum supply current specification (30mA) remains within acceptable operational margins.

Alternative Recommendation: AC20070001

The AC20070001 from TXC CORPORATION represents an additional TXC option with Active status and RoHS compliance. This part is suitable where supply current specification is not a critical design constraint.

All four substitute parts satisfy the critical electrical and mechanical parameters required for functional equivalence to the TB-20.000MBE-T.

Frequently Asked Questions (FAQ)

Q: Can the TB-20.000MBE-T be directly replaced with any of these substitute parts?

A: Yes. All listed substitute parts satisfy the critical 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, 5.00mm x 3.20mm dimensions, and MSL 1 rating. Direct PCB footprint compatibility is maintained.

Q: What is the difference between MEMS and Crystal-based oscillators in this application?

A: The original TB-20.000MBE-T uses MEMS resonator technology. All substitute parts use crystal-based resonators. Both technologies deliver identical electrical performance within the specified parameters. Crystal-based oscillators represent established production technology with extensive field history.

Q: Does the difference in maximum seated height affect PCB layout?

A: The TB-20.000MBE-T specifies 0.80mm maximum height. Substitute parts range from 1.30mm to 1.40mm. PCB clearance must accommodate the taller profile. Verify available vertical space in the target application before selection.

Q: Which substitute part has the lowest power consumption?

A: The SXO53C3A481-20.000M specifies 16mA maximum supply current, the lowest among all options. The original TB-20.000MBE-T and CPPLC5LZ-A7BP-20.0TS both specify 25mA. The 7C-20.000MBE-T specifies 30mA.

Q: Are all substitute parts RoHS compliant?

A: The 7C-20.000MBE-T, AC20070001, CPPLC5LZ-A7BP-20.0TS, and SXO53C3A481-20.000M all carry RoHS or ROHS3 compliance certification. The original TB-20.000MBE-T does not specify RoHS status.

Q: What packaging options are available?

A: The 7C-20.000MBE-T and CPPLC5LZ-A7BP-20.0TS are supplied in Tape & Reel format, suitable for automated assembly. The SXO53C3A481-20.000M is supplied in Bulk packaging. The AC20070001 packaging format is not specified.

Q: Can I use these parts interchangeably in existing designs?

A: Yes, provided PCB layout accommodates the maximum seated height of the selected substitute. All parts maintain identical electrical interface specifications and footprint dimensions.