TC-25.000MBE-T Equivalent & Substitute Parts

Part Overview

The TC-25.000MBE-T is a 25 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 active equivalent alternatives that maintain electrical and mechanical compatibility for ongoing production and field replacement applications.

Substiute Parts

TC-25.000MBE-T

TXC CORPORATIONIn Stock: 921TC-25.000MBE-T Datasheet

Current PartRFQ

7X-25.000MBE-T

TXC CORPORATIONIn Stock: 123907X-25.000MBE-T Datasheet

DirectRFQ

AU-25.000MBE-T

TXC CORPORATIONIn Stock: 23938AU-25.000MBE-T Datasheet

DirectRFQ

ASE-25.000MHZ-L-C-T

Abracon LLCIn Stock: 130155ASE-25.000MHZ-L-C-T Datasheet

DirectRFQ

LFSPXO025165

IQD Frequency ProductsIn Stock: 16684LFSPXO025165 Datasheet

DirectRFQ

SXO32C3A481-25.000M

Suntsu Electronics, Inc.In Stock: 18193SXO32C3A481-25.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 25 MHz
• Output Type: CMOS
• Supply Voltage: 3.3V
• Function: Enable/Disable
• Frequency Stability: ±50ppm
• Operating Temperature Range: -40°C ~ 85°C
• Package / Case: 4-SMD, No Lead
• Physical Dimensions: 0.126" L x 0.098" W (3.20mm x 2.50mm)
• Mounting Type: Surface Mount
• MSL Rating: 1 (Unlimited)

All substitute parts listed meet these mandatory parameters. Variations in current supply specifications, base resonator technology (MEMS vs. Crystal), and product status are noted but do not preclude substitution where electrical and mechanical compatibility is maintained.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: AU-25.000MBE-T

The AU-25.000MBE-T is the preferred substitute for the obsolete TC-25.000MBE-T. This part is manufactured by TXC CORPORATION (same manufacturer as the original), maintains Active product status, and carries AEC-Q100 qualification. The AU series demonstrates the lowest maximum supply current (6mA) among all substitutes, providing superior power efficiency. RoHS3 compliance and REACH Unaffected status satisfy modern regulatory requirements.

Secondary Recommendation: ASE-25.000MHZ-L-C-T

The ASE-25.000MHZ-L-C-T from Abracon LLC is an Active alternative with the highest inventory availability (130,081 pcs). This part provides RoHS3 compliance and REACH Unaffected status. The specified Current - Supply (Disable) maximum of 10µA is documented, offering additional design margin for low-power applications.

Tertiary Recommendation: 7X-25.000MBE-T

The 7X-25.000MBE-T remains a TXC CORPORATION product with Active status and RoHS compliance. This option is suitable where supply current specification of 20mA is acceptable and cost considerations favor the 7X series.

Alternative Recommendation: LFSPXO025165

The LFSPXO025165 from IQD Frequency Products is an Active part with RoHS3 compliance and REACH Unaffected status. This option provides geographic supply diversification through a different manufacturer.

Alternative Recommendation: SXO32C3A481-25.000M

The SXO32C3A481-25.000M from Suntsu Electronics, Inc. is an Active part with RoHS3 compliance and REACH Unaffected status. This option is available in Bulk packaging and provides additional sourcing flexibility.

Height Consideration:

The original TC-25.000MBE-T specifies a maximum seated height of 0.031" (0.80mm). All substitute parts specify heights of 0.043" to 0.047" (1.10mm to 1.20mm). PCB layout and component clearance must be evaluated to accommodate this dimensional increase.

Frequently Asked Questions (FAQ)

Q: Can the TC-25.000MBE-T be directly replaced with any of the listed substitutes?

A: All listed substitutes maintain electrical equivalence across frequency, output type, supply voltage, function, frequency stability, operating temperature range, package type, and physical footprint dimensions. However, the maximum seated height increases from 0.031" to 0.043"–0.047" across all substitutes. PCB clearance must be verified before implementation.

Q: What is the primary difference between the TC-25.000MBE-T and its substitutes?

A: The original TC-25.000MBE-T uses MEMS resonator technology, while all substitutes employ crystal resonators. Both technologies deliver identical electrical performance within the specified parameters. The TC-25.000MBE-T is Obsolete; all substitutes carry Active product status.

Q: Which substitute offers the best power efficiency?

A: The AU-25.000MBE-T specifies a maximum supply current of 6mA, the lowest among all alternatives. This part is recommended for power-constrained applications.

Q: Are all substitutes RoHS compliant?

A: Five of the six substitutes carry RoHS3 compliance. The 7X-25.000MBE-T is RoHS Compliant (RoHS 2). The original TC-25.000MBE-T does not specify RoHS status.

Q: What is the difference between Tape & Reel and Bulk packaging?

A: Tape & Reel (TR) packaging is standard for automated assembly processes and high-volume production. Bulk packaging is used for manual assembly or lower-volume applications. The TC-25.000MBE-T is supplied in Bulk; substitutes are available in both formats depending on the part selected.

Q: Does the increase in seated height affect PCB design?

A: The seated height increase from 0.031" (0.80mm) to 0.043"–0.047" (1.10mm–1.20mm) must be evaluated against PCB clearance requirements, particularly in applications with height constraints or adjacent components. Layout verification is required before production implementation.

Q: Which substitute is recommended for automotive applications?

A: The AU-25.000MBE-T carries AEC-Q100 qualification, making it the specified choice for automotive-grade applications.

Q: Can substitutes be intermixed in production?

A: All substitutes meet the mandatory electrical and mechanical parameters. However, supply current variations (6mA to 25mA) and height differences (0.80mm to 1.20mm) must be considered. Design validation should confirm compatibility with the specific application before intermixing parts in production.

Q: What is the inventory status of each substitute?

A: ASE-25.000MHZ-L-C-T has the highest inventory (130,081 pcs). AU-25.000MBE-T has 23,860 pcs. 7X-25.000MBE-T has 12,295 pcs. LFSPXO025165 has 16,589 pcs. SXO32C3A481-25.000M has 18,107 pcs. Inventory levels should be confirmed with suppliers for current availability.