AC-48.000MBE-T Equivalent & Substitute Parts

Part Overview

The AC-48.000MBE-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, 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 become necessary due to supply chain constraints, inventory availability, or procurement preferences while maintaining identical electrical and mechanical performance within specified tolerances.

Key Parameters

Parameter	Value	Unit
Frequency	48.0000	MHz
Output Type	CMOS	-
Supply Voltage	3.3	V
Frequency Stability	±50	ppm
Operating Temperature Range	-40 to 85	°C
Package Type	4-SMD, No Lead	-
Package Dimensions	5.00 x 3.20 x 1.40	mm
Function	Enable/Disable	-
Base Resonator	Crystal	-
Oscillator Type	XO (Standard)	-

Substitute Part Grouping Explanation

Substitution eligibility for the AC-48.000MBE-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
Frequency Stability: ±50ppm
Operating Temperature Range: -40°C to 85°C
Package Type: 4-SMD, No Lead
Package Dimensions: 5.00mm L x 3.20mm W x 1.40mm H (maximum seated height)
Function: Enable/Disable capability
Base Resonator: Crystal
Oscillator Type: XO (Standard)

The substitute part SXO53C3A481-48.000M manufactured by Suntsu Electronics, Inc. meets all mandatory matching parameters. Both devices share identical frequency, output characteristics, voltage specifications, temperature operating range, and physical package dimensions. This equivalence permits direct substitution in circuit applications without design modification or re-qualification.

Parameter Comparison

Parameter	AC-48.000MBE-T (TXC)	SXO53C3A481-48.000M (Suntsu)	Match Status
Manufacturer	TXC CORPORATION	Suntsu Electronics, Inc.	Different
Series	AC	SXO53C	Different
Frequency	48.0000 MHz	48.0000 MHz	Match
Output Type	CMOS	CMOS	Match
Supply Voltage	3.3V	3.3V	Match
Frequency Stability	±50ppm	±50ppm	Match
Operating Temperature	-40°C to 85°C	-40°C to 85°C	Match
Function	Enable/Disable	Enable/Disable	Match
Package Type	4-SMD, No Lead	4-SMD, No Lead	Match
Dimensions (L x W x H)	5.00 x 3.20 x 1.40 mm	5.00 x 3.20 x 1.40 mm	Match
Current - Supply (Max)	20mA	25mA	Compatible
Product Status	Active	Active	Match
RoHS Compliance	RoHS Compliant	ROHS3 Compliant	Compatible

Engineering Selection Recommendations

AC-48.000MBE-T (Primary Selection):

Active product status with established supply chain
RoHS Compliant certification
AEC-Q100 rated for automotive and high-reliability applications
Lower maximum supply current (20mA) reduces power consumption
Tape & Reel packaging suitable for high-volume automated assembly

SXO53C3A481-48.000M (Substitute Selection):

Active product status with confirmed inventory availability
ROHS3 Compliant certification
Higher maximum supply current specification (25mA) provides design margin
Bulk packaging option available
Functionally equivalent across all critical electrical and mechanical parameters

Both parts are suitable for direct substitution based on product status and compliance certifications. Selection between primary and substitute should be based on procurement availability, packaging requirements, and supply chain logistics rather than technical performance differences.

Frequently Asked Questions (FAQ)

Q: Can SXO53C3A481-48.000M replace AC-48.000MBE-T without circuit modification?

A: Yes. Both oscillators share identical frequency (48.0000 MHz), output type (CMOS), supply voltage (3.3V), frequency stability (±50ppm), operating temperature range (-40°C to 85°C), and package dimensions (5.00 x 3.20 x 1.40 mm). No circuit redesign is required.

Q: What is the difference in maximum supply current between these parts?

A: AC-48.000MBE-T specifies 20mA maximum supply current, while SXO53C3A481-48.000M specifies 25mA maximum. This difference does not affect substitution compatibility. Circuits designed for the 20mA specification will operate within acceptable parameters with the 25mA-rated substitute.

Q: Are the package dimensions identical?

A: Yes. Both parts use 4-SMD, No Lead packages with dimensions of 5.00mm length x 3.20mm width x 1.40mm maximum seated height. PCB footprints and assembly processes are interchangeable.

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

A: AC-48.000MBE-T is supplied in Tape & Reel (TR) format, optimized for automated pick-and-place assembly. SXO53C3A481-48.000M is supplied in Bulk format. Both contain the same component; packaging format affects handling and assembly methodology only.

Q: Do both parts meet automotive reliability standards?

A: AC-48.000MBE-T carries AEC-Q100 rating for automotive applications. SXO53C3A481-48.000M does not list AEC-Q100 certification. For automotive or high-reliability applications requiring AEC-Q100 compliance, AC-48.000MBE-T is the specified choice.

Q: Are there RoHS compliance differences?

A: AC-48.000MBE-T is RoHS Compliant. SXO53C3A481-48.000M is ROHS3 Compliant. Both meet RoHS requirements; ROHS3 represents a more recent compliance standard revision and is compatible with RoHS-compliant designs.

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