7C-48.000MBA-T CMOS Oscillator Equivalent & Substitute Parts

Part Overview

The 7C-48.000MBA-T is a 48 MHz XO (Standard) CMOS oscillator manufactured by TXC CORPORATION. This surface mount crystal oscillator operates at 3.3V with enable/disable functionality and is housed in a 4-SMD, No Lead package. The device is actively produced and widely used in digital signal processing, telecommunications, and embedded systems applications where precise 48 MHz timing is required.

Substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility is needed while maintaining full electrical and mechanical compatibility.

Substiute Parts

7C-48.000MBA-T

TXC CORPORATIONIn Stock: 8917C-48.000MBA-T Datasheet

Current PartRFQ

SXO53C3C171-48.000M

Suntsu Electronics, Inc.In Stock: 2447SXO53C3C171-48.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7C-48.000MBA-T is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 48.0000 MHz (exact match required)
• Output Type: CMOS
• Supply Voltage: 3.3V
• Function: Enable/Disable capability
• Frequency Stability: ±25ppm
• Operating Temperature Range: -10°C to 70°C
• Package Type: 4-SMD, No Lead
• Physical Dimensions: 5.00mm × 3.20mm × 1.40mm (maximum seated height)
• Mounting Type: Surface Mount

The substitute part SXO53C3C171-48.000M from Suntsu Electronics, Inc. meets all mandatory matching parameters. Variations in maximum supply current (25mA vs. 30mA) and packaging format (Bulk vs. Tape & Reel) do not affect functional substitution, as the lower current specification of the substitute part remains within acceptable design margins for standard applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: 7C-48.000MBA-T

The 7C-48.000MBA-T remains the primary choice when available. It is actively produced by TXC CORPORATION, carries RoHS Compliance certification, and is supplied in Tape & Reel packaging suitable for automated assembly processes. Current inventory of 857 pieces supports immediate procurement.

Substitute Selection: SXO53C3C171-48.000M

The SXO53C3C171-48.000M from Suntsu Electronics, Inc. is a direct functional equivalent. It meets all electrical specifications, maintains identical physical dimensions and package configuration, and carries ROHS3 Compliance certification. The substitute part is actively produced with higher inventory availability (2373 pieces). The maximum supply current specification of 25mA is lower than the primary part's 30mA rating; however, this does not restrict substitution in standard applications where actual current draw remains within the substitute's specification.

The primary difference is packaging format: the substitute is supplied in Bulk packaging rather than Tape & Reel. This affects handling and assembly workflow but does not impact electrical or mechanical compatibility.

Both parts are classified as Active products with unrestricted moisture sensitivity (MSL 1), ensuring long-term availability and storage flexibility.

Frequently Asked Questions (FAQ)

Q: Can SXO53C3C171-48.000M be used as a direct replacement for 7C-48.000MBA-T on existing PCBs?

A: Yes. Both parts share identical physical dimensions (5.00mm × 3.20mm × 1.40mm), identical package type (4-SMD, No Lead), and identical mounting type (Surface Mount). No PCB layout modifications are required.

Q: What is the significance of the lower maximum supply current (25mA vs. 30mA) in the substitute part?

A: The substitute part's 25mA specification is a device rating, not a requirement. It indicates the maximum current the oscillator will draw under specified conditions. In typical applications, actual current consumption is significantly lower. The substitute part is suitable for any application where the primary part was used, provided the application's power budget accommodates the substitute's actual current draw.

Q: Are there differences in frequency stability between the two parts?

A: No. Both parts specify ±25ppm frequency stability across the operating temperature range of -10°C to 70°C. Frequency accuracy and stability are identical.

Q: Does the packaging difference (Tape & Reel vs. Bulk) affect compatibility?

A: Packaging format affects supply chain logistics and assembly handling but does not affect electrical or mechanical compatibility. Tape & Reel packaging is optimized for automated pick-and-place assembly, while Bulk packaging requires manual handling. The oscillator itself is identical in both formats.

Q: Are both parts RoHS compliant?

A: Yes. The primary part carries RoHS Compliance certification. The substitute part carries ROHS3 Compliance certification. Both certifications confirm the absence of restricted substances and are acceptable for applications requiring RoHS compliance.

Q: Can I mix these parts in the same production batch?

A: Yes. Both parts are functionally and mechanically equivalent. They can be used interchangeably on the same PCB design without modification. However, mixing parts from different manufacturers in a single batch may require separate traceability documentation depending on your quality management system requirements.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -10°C to 70°C. This range covers standard industrial and commercial applications. If extended temperature operation is required, these parts are not suitable.

Q: Are there any REACH or ECCN restrictions on either part?

A: Both parts carry identical REACH and ECCN classifications: REACH Unaffected and ECCN EAR99. No additional export or regulatory documentation is required for either part.