7X50072003 50 MHz CMOS Crystal Oscillator Equivalent & Substitute Parts

Part Overview

The 7X50072003 is a 50 MHz XO (Standard) CMOS crystal oscillator manufactured by TXC CORPORATION. This surface mount device 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 Active status and RoHS Compliant with MSL 1 (Unlimited moisture sensitivity level).

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory availability, supply chain optimization, or specific compliance certifications. The substitute parts listed maintain identical electrical and mechanical specifications within the allowed parameter tolerances for this oscillator category.

Key Parameters

Parameter	Specification
Frequency	50.0000 MHz
Output Type	CMOS
Supply Voltage	3.3V
Function	Enable/Disable
Frequency Stability	±50 ppm
Operating Temperature Range	-40°C to +85°C
Package Type	4-SMD, No Lead
Package Dimensions	3.20mm L x 2.50mm W
Maximum Height	1.10mm (seated)
Mounting Type	Surface Mount
RoHS Status	RoHS Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 7X50072003 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Frequency: 50.0000 MHz (exact)
Output: CMOS
Supply Voltage: 3.3V
Function: Enable/Disable
Frequency Stability: ±50 ppm
Operating Temperature: -40°C to +85°C
Package/Case: 4-SMD, No Lead
Mounting Type: Surface Mount
Base Resonator: Crystal
Type: XO (Standard)

Allowable Variations:

Current Supply (Max): Variations permitted within component design limits
Height (Seated Max): Minor variations acceptable (1.10mm to 1.20mm range)
Packaging Format: Tape & Reel (TR), Cut Tape (CT), or Bulk acceptable
RoHS Compliance: RoHS Compliant or ROHS3 Compliant both acceptable
Manufacturer: Different manufacturers permitted if all parameters match

All five substitute parts meet these criteria and are direct functional equivalents.

Parameter Comparison

Parameter	7X50072003	7X-50.000MBE-T	AU-50.000MBE-T	ASE-50.000MHZ-L-C-T	LFSPXO025560	SXO32C3A481-50.000M
Manufacturer	TXC CORPORATION	TXC CORPORATION	TXC CORPORATION	Abracon LLC	IQD Frequency Products	Suntsu Electronics, Inc.
Series	7X	7X	AU	ASE	CFPS-39	SXO32C
Frequency	50 MHz	50 MHz	50 MHz	50 MHz	50 MHz	50 MHz
Output	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
Supply Voltage	3.3V	3.3V	3.3V	3.3V	3.3V	3.3V
Function	Enable/Disable	Enable/Disable	Enable/Disable	Enable/Disable	Enable/Disable	Enable/Disable
Frequency Stability	±50 ppm	±50 ppm	±50 ppm	±50 ppm	±50 ppm	±50 ppm
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-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-SMD, No Lead	4-SMD, No Lead	4-SMD, No Lead
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	3.20mm x 2.50mm
Height (Max)	1.10mm	1.10mm	1.10mm	1.20mm	1.20mm	1.20mm
Current Supply (Max)	Not specified	20 mA	6 mA	19 mA	20 mA	17 mA
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not Applicable	Not specified
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All five substitute parts are functionally equivalent to the 7X50072003 and are suitable for direct replacement in applications requiring a 50 MHz CMOS crystal oscillator with 3.3V supply and Enable/Disable control.

TXC CORPORATION Parts (7X-50.000MBE-T and AU-50.000MBE-T): These parts maintain the same manufacturer as the primary part. The 7X-50.000MBE-T is the direct equivalent with identical specifications and packaging format. The AU-50.000MBE-T offers automotive-grade qualification (AEC-Q100) with reduced supply current (6 mA) and ROHS3 compliance, suitable for applications requiring automotive-level reliability.

Abracon LLC Part (ASE-50.000MHZ-L-C-T): This substitute provides ROHS3 compliance with specified disable mode current (10 µA). Height is 1.20mm, which remains within acceptable PCB assembly tolerances for 4-SMD packages. Available in Cut Tape and Digi-Reel packaging formats.

IQD Frequency Products Part (LFSPXO025560): This CFPS-39 series oscillator meets all electrical specifications with ROHS3 compliance. MSL rating is Not Applicable, indicating alternative moisture handling. Height is 1.20mm. Available in Tape & Reel format.

Suntsu Electronics Part (SXO32C3A481-50.000M): The SXO32C series substitute provides ROHS3 compliance with 17 mA maximum supply current. Height is 1.20mm. Available in Bulk packaging format.

Selection among these substitutes depends on packaging format requirements, supply current constraints, and compliance certifications needed for the end application.

Frequently Asked Questions (FAQ)

Q: Can the 7X-50.000MBE-T replace the 7X50072003 directly?

A: Yes. The 7X-50.000MBE-T is a parametric equivalent with identical electrical and mechanical specifications. The primary difference is packaging format (Tape & Reel versus the original packaging). Both are manufactured by TXC CORPORATION and maintain the same frequency, voltage, output type, and physical dimensions.

Q: What is the difference between the AU-50.000MBE-T and the 7X-50.000MBE-T?

A: Both are TXC CORPORATION products with identical core specifications. The AU-50.000MBE-T includes AEC-Q100 automotive qualification and operates at lower supply current (6 mA versus 20 mA). The AU series is suitable for automotive and high-reliability applications. Both are available in Tape & Reel packaging.

Q: Are there height differences between substitute parts?

A: The 7X50072003 and 7X-50.000MBE-T have a maximum seated height of 1.10mm. The ASE-50.000MHZ-L-C-T, LFSPXO025560, and SXO32C3A481-50.000M have a maximum seated height of 1.20mm. This 0.10mm difference is within standard PCB assembly tolerances for surface mount components and does not affect functional compatibility.

Q: What packaging formats are available for these substitutes?

A: The 7X-50.000MBE-T and LFSPXO025560 are available in Tape & Reel (TR) format. The ASE-50.000MHZ-L-C-T is available in Cut Tape (CT) and Digi-Reel format. The SXO32C3A481-50.000M is available in Bulk format. The original 7X50072003 packaging format is not specified in the provided data.

Q: Do all substitutes meet RoHS compliance requirements?

A: Yes. The 7X50072003 and 7X-50.000MBE-T are RoHS Compliant. The AU-50.000MBE-T, ASE-50.000MHZ-L-C-T, LFSPXO025560, and SXO32C3A481-50.000M are ROHS3 Compliant. Both RoHS and ROHS3 compliance are acceptable for applications requiring lead-free components.

Q: Which substitute has the lowest supply current?

A: The AU-50.000MBE-T operates at 6 mA maximum supply current, which is the lowest among all listed parts. This makes it suitable for power-constrained applications. Other substitutes range from 17 mA to 20 mA maximum supply current.

Q: Can I use the ASE-50.000MHZ-L-C-T in a space-constrained PCB layout?

A: The ASE-50.000MHZ-L-C-T has a maximum seated height of 1.20mm compared to the original 1.10mm. This 0.10mm difference is negligible for most PCB designs. Verify clearance with your specific PCB layout and component placement requirements.

Q: Are all substitutes available in stock?

A: Inventory availability varies. The 7X-50.000MBE-T has the highest inventory (27,232 pcs), followed by ASE-50.000MHZ-L-C-T (13,957 pcs), SXO32C3A481-50.000M (7,506 pcs), AU-50.000MBE-T (6,619 pcs), and LFSPXO025560 (1,211 pcs). Verify current inventory status with your component supplier.

Q: What is the REACH status of these substitutes?

A: All listed substitutes have REACH Unaffected status, indicating compliance with REACH regulations for restricted substances.

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