7C-20.000MBB-T CMOS Oscillator Equivalent & Substitute Parts

Part Overview

The 7C-20.000MBB-T is a 20 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 RoHS Compliant, making it suitable for modern electronic applications requiring precise frequency generation.

Identifying equivalent and substitute parts becomes necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits component alternatives that maintain identical electrical and mechanical specifications.

Substiute Parts

7C-20.000MBB-T

TXC CORPORATIONIn Stock: 11527C-20.000MBB-T Datasheet

Current PartRFQ

SXO53C3A171-20.000M

Suntsu Electronics, Inc.In Stock: 4043SXO53C3A171-20.000M Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7C-20.000MBB-T is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 20 MHz (exact match required)
• Output Type: CMOS
• Supply Voltage: 3.3V
• Function: Enable/Disable capability
• Frequency Stability: ±50ppm
• Operating Temperature Range: -10°C ~ 70°C
• Package / Case: 4-SMD, No Lead
• Physical Dimensions: 5.00mm x 3.20mm x 1.40mm (Max)
• Mounting Type: Surface Mount

The substitute part SXO53C3A171-20.000M from Suntsu Electronics, Inc. meets all mandatory matching parameters and qualifies as a direct electrical and mechanical equivalent. Both parts share identical frequency, output characteristics, supply voltage, functional capability, stability specifications, temperature range, and physical form factor.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: 7C-20.000MBB-T

The TXC CORPORATION 7C-20.000MBB-T remains the specified component with active product status and RoHS Compliance certification. Current inventory of 1106 pieces supports immediate procurement.

Substitute Part: SXO53C3A171-20.000M

The Suntsu Electronics SXO53C3A171-20.000M qualifies as a direct substitute based on complete electrical and mechanical equivalence. This part demonstrates:

• Identical frequency, output type, supply voltage, and functional capability
• Matching frequency stability and operating temperature specifications
• Identical physical form factor and mounting characteristics
• Active product status with ROHS3 Compliance certification
• Higher inventory availability (3990 pieces)
• Lower maximum supply current (16mA versus 30mA), indicating potential efficiency advantage

Both parts carry identical ECCN and HTSUS classifications, confirming regulatory equivalence. Selection between these parts may be based on supply availability, packaging preference (Tape & Reel versus Bulk), or application-specific current consumption requirements.

Frequently Asked Questions (FAQ)

Q: Can the SXO53C3A171-20.000M be used as a direct replacement for the 7C-20.000MBB-T?

A: Yes. Both parts are electrically and mechanically equivalent across all critical parameters: 20 MHz frequency, CMOS output, 3.3V supply, Enable/Disable function, ±50ppm stability, -10°C to 70°C operating range, and 4-SMD No Lead package with identical 5.00mm x 3.20mm x 1.40mm dimensions. No circuit modifications are required.

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

A: The 7C-20.000MBB-T specifies a maximum supply current of 30mA, while the SXO53C3A171-20.000M specifies 16mA maximum. Both values are within acceptable operating parameters. The Suntsu part demonstrates lower current consumption, which may provide marginal power efficiency benefits in battery-powered or power-constrained applications.

Q: Are there packaging differences between these parts?

A: Yes. The 7C-20.000MBB-T is supplied in Tape & Reel (TR) packaging, while the SXO53C3A171-20.000M is supplied in Bulk packaging. Both use identical 4-SMD, No Lead surface mount packages with matching physical dimensions. Packaging selection depends on production volume and assembly process requirements.

Q: Do both parts meet current RoHS requirements?

A: Yes. The 7C-20.000MBB-T carries RoHS Compliant certification, and the SXO53C3A171-20.000M carries ROHS3 Compliant certification. Both meet current regulatory requirements for hazardous substance restrictions.

Q: Are there any temperature range limitations?

A: No. Both parts operate across the identical temperature range of -10°C to 70°C, ensuring equivalent thermal performance across standard industrial and commercial operating conditions.

Q: Can these parts be used interchangeably in PCB assembly?

A: Yes. Identical 4-SMD, No Lead package specifications and physical dimensions (5.00mm x 3.20mm x 1.40mm) ensure mechanical and electrical compatibility on the same PCB footprint without design modifications.