7X50000008 XTAL OSC XO 50.0000MHZ CMOS SMD Equivalent & Substitute Parts

Part Overview

The 7X50000008 is a 50 MHz crystal oscillator manufactured by TXC CORPORATION, designed for applications requiring a standard XO (Standard) CMOS oscillator with 3.3V supply and Enable/Disable functionality. This part operates across the industrial temperature range of -40°C to 85°C and is packaged in a compact 4-SMD, No Lead surface mount configuration measuring 3.20mm x 2.50mm.

The product is currently Active in production status with 720 pieces available in new original inventory. Substitute parts are identified based on matching electrical specifications, mechanical compatibility, and functional equivalence. Alternative models may be required due to inventory availability, supply chain optimization, or specific compliance requirements for target applications.

Key Parameters

Parameter	Specification
Frequency	50 MHz
Output Type	CMOS
Supply Voltage	3.3V
Function	Enable/Disable
Frequency Stability	±50ppm
Operating Temperature Range	-40°C ~ 85°C
Mounting Type	Surface Mount
Package / Case	4-SMD, No Lead
Size / Dimension	0.126" L x 0.098" W (3.20mm x 2.50mm)
Height - Seated (Max)	0.043" (1.10mm)
Base Resonator	Crystal
Type	XO (Standard)
RoHS Status	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 7X50000008 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

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

Allowable Variation Parameters:

Current - Supply (Max): Variation permitted within functional limits
Height - Seated (Max): Minor variation acceptable (1.10mm to 1.20mm)
Packaging Format: Different packaging options (Tape & Reel, Cut Tape, Bulk) are functionally equivalent
RoHS Compliance Level: Both RoHS and ROHS3 compliant parts are acceptable
Ratings: Automotive qualification (AEC-Q100) is optional enhancement

All identified substitute parts meet these criteria and are direct functional equivalents suitable for PCB assembly without design modification.

Parameter Comparison

Parameter	7X50000008 (Main)	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.
Frequency	50 MHz	50 MHz	50 MHz	50 MHz	50 MHz	50 MHz
Output Type	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	±50ppm	±50ppm	±50ppm	±50ppm	±50ppm	±50ppm
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
Current - Supply (Max)	Not Specified	20mA	6mA	19mA	20mA	17mA
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
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
Size / Dimension	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 - Seated (Max)	1.10mm	1.10mm	1.10mm	1.20mm	1.20mm	1.20mm
RoHS Status	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	Not Applicable	Not Specified
Packaging Format	Bulk	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)	Bulk
Inventory (Pcs)	720	27232	6619	13957	1211	7506

Engineering Selection Recommendations

TXC CORPORATION 7X-50.000MBE-T

This part is a parametric equivalent from the same manufacturer (TXC CORPORATION) within the 7X series. It matches all critical electrical and mechanical specifications with the main part. The 7X-50.000MBE-T is supplied in Tape & Reel packaging format and maintains RoHS compliance. With 27,232 pieces in inventory, this represents the highest stock availability among all substitutes. Selection of this part eliminates any cross-manufacturer qualification concerns.

TXC CORPORATION AU-50.000MBE-T

This part is a parametric equivalent from TXC CORPORATION within the AU series, featuring automotive-grade AEC-Q100 qualification. The AU-50.000MBE-T operates at a reduced maximum supply current of 6mA compared to other options, providing enhanced power efficiency. ROHS3 compliance is provided. This part is suitable for applications requiring automotive-grade reliability assurance.

Abracon LLC ASE-50.000MHZ-L-C-T

This part is a direct manufacturer equivalent from Abracon LLC within the ASE series. The ASE-50.000MHZ-L-C-T matches all critical specifications with a maximum seated height of 1.20mm (0.01mm taller than the main part) and maximum supply current of 19mA. ROHS3 compliance is provided. This part is supplied in Cut Tape and Digi-Reel® packaging formats with 13,957 pieces in inventory.

IQD Frequency Products LFSPXO025560

This part is a direct manufacturer equivalent from IQD Frequency Products within the CFPS-39 series. The LFSPXO025560 matches all critical specifications with a maximum seated height of 1.20mm and maximum supply current of 20mA. ROHS3 compliance is provided. Moisture Sensitivity Level is listed as Not Applicable. This part is supplied in Tape & Reel packaging with 1,211 pieces in inventory.

Suntsu Electronics, Inc. SXO32C3A481-50.000M

This part is a direct manufacturer equivalent from Suntsu Electronics, Inc. within the SXO32C series. The SXO32C3A481-50.000M matches all critical specifications with a maximum seated height of 1.20mm and maximum supply current of 17mA. ROHS3 compliance is provided. This part is supplied in Bulk packaging format with 7,506 pieces in inventory.

All substitute parts are Active in production status and suitable for direct replacement based on electrical and mechanical equivalence.

Frequently Asked Questions (FAQ)

Q: Can the 7X-50.000MBE-T be used as a direct replacement for the 7X50000008?

A: Yes. The 7X-50.000MBE-T is a parametric equivalent with identical electrical specifications (50 MHz, CMOS output, 3.3V supply, Enable/Disable function, ±50ppm stability, -40°C to 85°C operating range) and mechanical compatibility (4-SMD No Lead package, 3.20mm x 2.50mm footprint, 1.10mm maximum height). The primary difference is packaging format (Tape & Reel versus Bulk).

Q: What is the significance of the height difference between 1.10mm and 1.20mm?

A: The main part 7X50000008 has a maximum seated height of 1.10mm. Substitute parts 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 typical PCB assembly tolerances and does not affect functional compatibility. Verify clearance in your specific PCB layout if height-constrained applications are present.

Q: Are all substitute parts RoHS compliant?

A: Yes. The main part 7X50000008 is RoHS Compliant. All substitute parts are either RoHS Compliant or ROHS3 Compliant. ROHS3 represents an updated compliance standard and is functionally equivalent for RoHS requirements.

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

A: These are packaging and delivery format variations only. Tape & Reel (TR) provides components on continuous tape suitable for automated pick-and-place assembly. Cut Tape (CT) provides components on tape segments. Bulk packaging provides loose components. All three formats contain identical electronic components with identical electrical and mechanical specifications. Selection depends on assembly process requirements and inventory management preferences.

Q: Which substitute part offers the lowest power consumption?

A: The AU-50.000MBE-T from TXC CORPORATION specifies a maximum supply current of 6mA, which is significantly lower than other options (17mA to 20mA). This part is suitable for power-sensitive applications. The AU-50.000MBE-T also includes AEC-Q100 automotive qualification.

Q: Can I use the ASE-50.000MHZ-L-C-T in place of the 7X50000008 without PCB redesign?

A: Yes. The ASE-50.000MHZ-L-C-T maintains identical electrical specifications and mechanical footprint (3.20mm x 2.50mm, 4-SMD No Lead package). The 0.10mm height difference (1.20mm versus 1.10mm) does not require PCB redesign in standard applications. Verify clearance in height-constrained designs.

Q: Are all substitute parts available in the same quantity as the main part?

A: No. Inventory levels vary significantly. The 7X-50.000MBE-T has the highest availability at 27,232 pieces. The LFSPXO025560 has the lowest availability at 1,211 pieces. Verify current inventory status with your supplier for production requirements.

Q: What does AEC-Q100 qualification mean for the AU-50.000MBE-T?

A: AEC-Q100 is an automotive-grade reliability qualification standard. The AU-50.000MBE-T meets this standard, making it suitable for automotive and high-reliability applications. Parts without this rating are suitable for general industrial and commercial applications.

Q: Can I mix different substitute parts in the same production run?

A: All substitute parts meet identical electrical specifications and mechanical compatibility requirements. Mixing different manufacturers or part numbers in the same production run is technically feasible from a functional standpoint. However, verify your quality assurance and traceability requirements, as component sourcing documentation may require consistency within a single production batch.

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