TC-30.000MBD-T Equivalent & Substitute Parts

Part Overview

The TC-30.000MBD-T is a 30 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. The part is currently classified as Obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and procurement continuity.

Key Parameters

Parameter	Value
Frequency	30 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
Size / Dimension	0.126" L x 0.098" W (3.20mm x 2.50mm)
Mounting Type	Surface Mount
Base Resonator	MEMS

Substitute Part Grouping Explanation

Substitution eligibility for the TC-30.000MBD-T is determined by the following mandatory parameters:

Critical Matching Parameters:

Frequency: 30 MHz (exact match required)
Output Type: CMOS
Supply Voltage: 3.3V (minimum requirement)
Function: Enable/Disable
Frequency Stability: ±25ppm
Operating Temperature Range: -40°C ~ 85°C
Package / Case: 4-SMD, No Lead
Size / Dimension: 0.126" L x 0.098" W (3.20mm x 2.50mm)
Mounting Type: Surface Mount

Substitute parts are classified into two categories:

Direct Substitutes: Parts meeting all critical matching parameters with identical electrical and mechanical specifications.

Similar Substitutes: Parts meeting all critical matching parameters but with variations in secondary characteristics such as base resonator type, current consumption, package height, or supply voltage range.

Parameter Comparison

Parameter	TC-30.000MBD-T (Main)	7X-30.000MBD-T (Direct)	ASE-30.000MHZ-L-R-T (Direct)	DSC1001CI2-030.0000 (Similar)
Manufacturer	TXC CORPORATION	TXC CORPORATION	Abracon LLC	Microchip Technology
Frequency	30 MHz	30 MHz	30 MHz	30 MHz
Output Type	CMOS	CMOS	CMOS	CMOS
Supply Voltage	3.3V	3.3V	3.3V	1.8V ~ 3.3V
Function	Enable/Disable	Enable/Disable	Enable/Disable	Enable/Disable
Frequency Stability	±25ppm	±25ppm	±25ppm	±25ppm
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	4-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead	4-VDFN
Size / Dimension	3.20mm x 2.50mm	3.20mm x 2.50mm	3.20mm x 2.50mm	3.20mm x 2.50mm
Height - Seated (Max)	0.031" (0.80mm)	0.043" (1.10mm)	0.047" (1.20mm)	0.035" (0.90mm)
Current - Supply (Max)	25mA	15mA	13mA	7.2mA
Base Resonator	MEMS	Crystal	Crystal	MEMS
Product Status	Obsolete	Active	Active	Active
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	3 (168 Hours)

Engineering Selection Recommendations

7X-30.000MBD-T (TXC CORPORATION): This part is a direct substitute from the same manufacturer. It maintains identical electrical specifications and package dimensions. The primary difference is the base resonator type (Crystal vs. MEMS) and reduced maximum supply current (15mA vs. 25mA). Product status is Active, ensuring long-term availability. Packaging is Tape & Reel (TR), suitable for high-volume production environments.

ASE-30.000MHZ-L-R-T (Abracon LLC): This part is a direct substitute meeting all critical electrical and mechanical parameters. It features the lowest maximum supply current (13mA) among all substitutes and includes RoHS3 compliance certification. Product status is Active with confirmed REACH compliance. Packaging is Tape & Reel (TR). The increased seated height (1.20mm) requires verification against PCB assembly clearance constraints.

DSC1001CI2-030.0000 (Microchip Technology): This part is classified as a similar substitute due to package type variation (4-VDFN vs. 4-SMD, No Lead) and extended supply voltage range (1.8V ~ 3.3V). It offers the lowest maximum supply current (7.2mA) and includes AEC-Q100 automotive qualification. Product status is Active with RoHS3 compliance. Moisture Sensitivity Level is MSL 3, requiring controlled storage conditions. The different package type necessitates PCB layout redesign.

Frequently Asked Questions (FAQ)

Q: Can the TC-30.000MBD-T be replaced with the 7X-30.000MBD-T without PCB modifications?

A: Yes. Both parts share identical package dimensions (3.20mm x 2.50mm), mounting type (Surface Mount), and pin configuration (4-SMD, No Lead). The seated height difference (0.80mm vs. 1.10mm) is within typical PCB assembly tolerances. No PCB layout changes are required.

Q: What is the primary difference between the TC-30.000MBD-T and ASE-30.000MHZ-L-R-T?

A: The main differences are base resonator type (MEMS vs. Crystal), maximum supply current (25mA vs. 13mA), and manufacturer (TXC vs. Abracon). All electrical specifications and package dimensions are identical. The ASE variant offers lower power consumption and active product status.

Q: Is the DSC1001CI2-030.0000 a direct replacement for the TC-30.000MBD-T?

A: No. While the DSC1001CI2-030.0000 meets all critical electrical parameters, it uses a different package type (4-VDFN vs. 4-SMD, No Lead). This requires PCB redesign and re-qualification of the assembly process. The extended supply voltage range (1.8V ~ 3.3V) provides additional design flexibility.

Q: What are the storage requirements for the DSC1001CI2-030.0000?

A: The DSC1001CI2-030.0000 has Moisture Sensitivity Level (MSL) 3, requiring storage at controlled humidity (≤60% RH) for a maximum of 168 hours after package opening. The TC-30.000MBD-T and both TXC/Abracon substitutes have MSL 1 (Unlimited), allowing indefinite storage without humidity control.

Q: Which substitute offers the best power efficiency?

A: The DSC1001CI2-030.0000 provides the lowest maximum supply current at 7.2mA, followed by ASE-30.000MHZ-L-R-T at 13mA and 7X-30.000MBD-T at 15mA. Selection depends on application power budget and package compatibility requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. The 7X-30.000MBD-T, ASE-30.000MHZ-L-R-T, and DSC1001CI2-030.0000 are all RoHS3 compliant. The original TC-30.000MBD-T does not specify RoHS status due to its Obsolete classification.

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