TC-24.000MBD-T MEMS Oscillator Equivalent & Substitute Parts

Part Overview

The TC-24.000MBD-T is a 24 MHz MEMS-based XO (Standard) CMOS oscillator manufactured by TXC CORPORATION, designed for applications requiring a 3.3V enable/disable oscillator in a compact 4-SMD, No Lead surface mount package. This part operates across the industrial temperature range of -40°C to 85°C with a frequency stability of ±25ppm and a maximum supply current of 25mA.

The TC-24.000MBD-T has reached obsolete product status. Equivalent substitute parts are available from TXC CORPORATION and other manufacturers, offering active product status with comparable electrical and mechanical specifications while maintaining full functional compatibility.

Key Parameters

Parameter	Value
Frequency	24 MHz
Output Type	CMOS
Supply Voltage	3.3V
Function	Enable/Disable
Frequency Stability	±25ppm
Operating Temperature Range	-40°C to 85°C
Package Type	4-SMD, No Lead
Physical Dimensions	0.126" L x 0.098" W (3.20mm x 2.50mm)
Mounting Type	Surface Mount
Moisture Sensitivity Level	MSL 1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the TC-24.000MBD-T is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Frequency: 24 MHz
Output Type: CMOS
Supply Voltage: 3.3V
Function: Enable/Disable
Frequency Stability: ±25ppm
Operating Temperature Range: -40°C to 85°C
Package Type: 4-SMD, No Lead
Physical Dimensions: 0.126" L x 0.098" W (3.20mm x 2.50mm)
Mounting Type: Surface Mount
Moisture Sensitivity Level: MSL 1

All four substitute parts listed meet these mandatory parameters. Variations in supply current, seated height, and base resonator type (MEMS versus Crystal) do not affect functional substitution within the specified electrical and mechanical constraints.

Parameter Comparison

Parameter	TC-24.000MBD-T	7X-24.000MBD-T	7X24000005	ASE-24.000MHZ-L-R-T	SXO32C3C481-24.000M
Manufacturer	TXC CORPORATION	TXC CORPORATION	TXC CORPORATION	Abracon LLC	Suntsu Electronics, Inc.
Product Status	Obsolete	Active	Active	Active	Active
Frequency	24 MHz	24 MHz	24 MHz	24 MHz	24 MHz
Output Type	CMOS	CMOS	CMOS	CMOS	CMOS
Supply Voltage	3.3V	3.3V	3.3V	3.3V	3.3V
Function	Enable/Disable	Enable/Disable	Enable/Disable	Enable/Disable	Enable/Disable
Frequency Stability	±25ppm	±25ppm	±25ppm	±25ppm	±25ppm
Operating Temperature	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Package Type	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead
Physical Dimensions	3.20mm x 2.50mm	3.20mm x 2.50mm	3.20mm x 2.50mm	3.20mm x 2.50mm	3.20mm x 2.50mm
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Moisture Sensitivity Level	MSL 1	MSL 1	MSL 1	MSL 1	MSL 1
Current - Supply (Max)	25mA	15mA	Not specified	13mA	10mA
Height - Seated (Max)	0.80mm	1.10mm	1.10mm	1.20mm	1.20mm
Base Resonator	MEMS	Crystal	Crystal	Crystal	Crystal

Engineering Selection Recommendations

All four substitute parts are functionally equivalent to the TC-24.000MBD-T based on matching electrical and mechanical specifications. Selection among these alternatives should be based on the following factors:

Product Status and Availability: The TC-24.000MBD-T is obsolete. All substitute parts carry active product status, ensuring long-term availability and continued manufacturing support. The 7X-24.000MBD-T and 7X24000005 are manufactured by the same supplier (TXC CORPORATION) as the original part, providing continuity in design and manufacturing processes.

Compliance and Certifications: The 7X-24.000MBD-T and 7X24000005 do not specify RoHS or REACH compliance status in the provided data. The ASE-24.000MHZ-L-R-T is ROHS3 Compliant and REACH Unaffected. The SXO32C3C481-24.000M is ROHS3 Compliant and REACH Unaffected. Applications requiring documented RoHS3 compliance should select either the ASE-24.000MHZ-L-R-T or SXO32C3C481-24.000M.

Supply Current Considerations: The TC-24.000MBD-T specifies a maximum supply current of 25mA. All substitute parts operate at lower maximum supply currents: 7X-24.000MBD-T (15mA), ASE-24.000MHZ-L-R-T (13mA), and SXO32C3C481-24.000M (10mA). Applications with power budget constraints benefit from these lower current alternatives.

Physical Height: The TC-24.000MBD-T has a seated height of 0.80mm. Substitute parts range from 1.10mm to 1.20mm. Applications with strict height constraints should verify clearance before substitution.

Packaging Format: The 7X-24.000MBD-T is supplied in Tape & Reel (TR) format. The ASE-24.000MHZ-L-R-T is supplied in Tape & Reel (TR) format. The SXO32C3C481-24.000M is supplied in Bulk format. The 7X24000005 packaging format is not specified. Procurement requirements for specific packaging formats should be verified.

Frequently Asked Questions (FAQ)

Q: Can the TC-24.000MBD-T be directly replaced with any of these substitute parts?

A: Yes. All four substitute parts are electrically and mechanically equivalent based on the mandatory matching parameters: 24 MHz frequency, CMOS output, 3.3V supply, enable/disable function, ±25ppm frequency stability, -40°C to 85°C operating range, 4-SMD No Lead package, and 3.20mm x 2.50mm dimensions. Direct pin-for-pin and functional substitution is supported.

Q: What is the difference between MEMS and Crystal base resonators in these oscillators?

A: The TC-24.000MBD-T uses a MEMS resonator, while all substitute parts use crystal resonators. Both technologies deliver the same electrical performance within the specified parameters. The choice between MEMS and crystal resonators is determined by the original design; substitution does not require technology migration.

Q: Are there any height clearance issues when substituting the TC-24.000MBD-T?

A: The TC-24.000MBD-T has a maximum seated height of 0.80mm. The 7X-24.000MBD-T and 7X24000005 have a maximum seated height of 1.10mm. The ASE-24.000MHZ-L-R-T and SXO32C3C481-24.000M have a maximum seated height of 1.20mm. Applications with height constraints of less than 1.10mm should verify clearance before substitution.

Q: Which substitute part has the lowest power consumption?

A: The SXO32C3C481-24.000M has the lowest specified maximum supply current at 10mA, compared to 15mA for the 7X-24.000MBD-T and 13mA for the ASE-24.000MHZ-L-R-T. The 7X24000005 does not specify maximum supply current in the provided data.

Q: Do all substitute parts meet RoHS compliance requirements?

A: The ASE-24.000MHZ-L-R-T and SXO32C3C481-24.000M are documented as ROHS3 Compliant. The 7X-24.000MBD-T and 7X24000005 do not specify RoHS compliance status in the provided data. Applications requiring documented RoHS3 compliance should select the ASE-24.000MHZ-L-R-T or SXO32C3C481-24.000M.

Q: What packaging formats are available for these substitute parts?

A: The 7X-24.000MBD-T is available in Tape & Reel (TR) format. The ASE-24.000MHZ-L-R-T is available in Tape & Reel (TR) format. The SXO32C3C481-24.000M is available in Bulk format. The 7X24000005 packaging format is not specified in the provided data. Verify packaging requirements with your procurement process.

Q: Are all substitute parts currently in active production?

A: Yes. All four substitute parts carry active product status. The TC-24.000MBD-T is obsolete and no longer in production. Transition to an active substitute part ensures continued availability and manufacturing support.

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