TC-27.000MBD-T Equivalent & Substitute Parts

Part Overview

The TC-27.000MBD-T is a 27 MHz MEMS-based XO (Standard) CMOS oscillator manufactured by TXC CORPORATION. This oscillator operates at 3.3V with Enable/Disable functionality, housed in a 4-SMD, No Lead package measuring 3.20mm x 2.50mm. The part is classified as Obsolete, necessitating identification of equivalent substitute components that maintain electrical and mechanical compatibility for ongoing system support and new production requirements.

Substiute Parts

TC-27.000MBD-T

TXC CORPORATIONIn Stock: 1100TC-27.000MBD-T Datasheet

Current PartRFQ

7X-27.000MBD-T

TXC CORPORATIONIn Stock: 7077X-27.000MBD-T Datasheet

DirectRFQ

7X27070006

TXC CORPORATIONIn Stock: 11317X27070006 Datasheet

DirectRFQ

ASE-27.000MHZ-L-R-T

Abracon LLCIn Stock: 1887ASE-27.000MHZ-L-R-T Datasheet

DirectRFQ

SXO32C3C481-27.000M

Suntsu Electronics, Inc.In Stock: 1945SXO32C3C481-27.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TC-27.000MBD-T is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 27 MHz
• Output Type: CMOS
• Supply Voltage: 3.3V
• Function: Enable/Disable
• Frequency Stability: ±25ppm
• Operating Temperature Range: -40°C ~ 85°C
• Package / Case: 4-SMD, No Lead
• Physical Dimensions: 3.20mm x 2.50mm
• Mounting Type: Surface Mount
• MSL Rating: 1 (Unlimited)

All identified substitute parts meet these mandatory parameters. Variations in current consumption, seated height, base resonator technology (MEMS versus Crystal), and product status are secondary considerations that do not preclude substitution when the above parameters are satisfied.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Active Status, TXC CORPORATION): The 7X-27.000MBD-T and 7X27070006 are direct TXC CORPORATION alternatives to the obsolete TC-27.000MBD-T. Both parts maintain identical electrical specifications and physical footprint. The 7X-27.000MBD-T is available in Tape & Reel packaging with documented RoHS compliance. The 7X27070006 provides equivalent functionality with RoHS compliance certification. Both are classified as Active products, ensuring long-term availability and supply chain stability.

Secondary Substitutes (Multi-Manufacturer Options): The ASE-27.000MHZ-L-R-T (Abracon LLC) and SXO32C3C481-27.000M (Suntsu Electronics, Inc.) provide functionally equivalent alternatives with ROHS3 compliance. These parts demonstrate lower maximum supply current (13mA and 10mA respectively) compared to the original TC-27.000MBD-T (25mA), representing improved power efficiency. Both are Active products with established supply availability.

Compliance Considerations: All substitute parts carry ECCN EAR99 and HTSUS 8542.39.0001 classifications matching the original part. The ASE-27.000MHZ-L-R-T and SXO32C3C481-27.000M carry REACH Unaffected status. RoHS compliance is documented for all Active substitute options.

Frequently Asked Questions (FAQ)

Q: Can the TC-27.000MBD-T be directly replaced with any of the listed substitutes?

A: Yes. All listed substitute parts satisfy the mandatory electrical and mechanical parameters: 27 MHz frequency, CMOS output, 3.3V supply, Enable/Disable function, ±25ppm stability, -40°C to 85°C operating range, 4-SMD No Lead package, and 3.20mm x 2.50mm footprint. Direct PCB-level substitution is supported without design modification.

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

A: The original TC-27.000MBD-T uses MEMS resonator technology, while all substitute parts employ Crystal resonators. Both technologies deliver identical electrical performance within the specified parameters. Crystal-based substitutes are widely available from multiple manufacturers and carry Active product status, supporting long-term supply continuity.

Q: Are there height differences that affect PCB assembly?

A: Yes. The TC-27.000MBD-T has a maximum seated height of 0.80mm. Substitute parts range from 1.10mm (7X series) to 1.20mm (ASE and SXO32C series). These height variations must be evaluated against PCB clearance requirements and component placement constraints. Height differences do not affect electrical compatibility.

Q: Which substitute offers the lowest power consumption?

A: The SXO32C3C481-27.000M specifies a maximum supply current of 10mA, the lowest among all listed options. The ASE-27.000MHZ-L-R-T specifies 13mA. The original TC-27.000MBD-T specifies 25mA. Lower current consumption may provide system-level power efficiency benefits.

Q: What packaging options are available for production quantities?

A: The 7X-27.000MBD-T is available in Tape & Reel (TR) packaging. The ASE-27.000MHZ-L-R-T is available in Tape & Reel (TR) packaging. The SXO32C3C481-27.000M is available in Bulk packaging. The 7X27070006 packaging specification is not detailed. Packaging selection depends on production volume and assembly line requirements.

Q: Are all substitutes RoHS compliant?

A: The 7X-27.000MBD-T and 7X27070006 carry RoHS Compliant certification. The ASE-27.000MHZ-L-R-T and SXO32C3C481-27.000M carry ROHS3 Compliant certification. ROHS3 represents the current RoHS directive standard. All options meet modern environmental compliance requirements.