7C-8.000MBC-T CMOS Oscillator Equivalent & Substitute Parts

Part Overview

The 7C-8.000MBC-T is an 8 MHz XO (Standard) CMOS oscillator manufactured by TXC CORPORATION. This surface mount crystal oscillator operates at 3.3V with enable/disable functionality, designed for applications requiring stable frequency generation in a compact 4-SMD, no-lead package. The part is currently in active production status with 1073 units in stock. Substitute parts are identified when original inventory becomes unavailable or when design requirements necessitate alternative qualified sources meeting identical electrical and mechanical specifications.

Substiute Parts

7C-8.000MBC-T

TXC CORPORATIONIn Stock: 11327C-8.000MBC-T Datasheet

Current PartRFQ

CPPC5LZ-A3B6-8.0TS

Cardinal Components Inc.In Stock: 1142CPPC5LZ-A3B6-8.0TS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 7C-8.000MBC-T are qualified based on the following critical parameters that must match or exceed the original specification:

Mandatory Matching Parameters:

• Frequency: 8.0000 MHz
• Output: CMOS
• Supply Voltage: 3.3V
• Function: Enable/Disable capability
• Frequency Stability: ±100 ppm minimum
• Package: 4-SMD, No Lead
• Physical Dimensions: 5.00mm × 3.20mm footprint compatibility
• Mounting: Surface Mount

Compliance Requirements:

• RoHS compliance status (RoHS3 or equivalent acceptable)
• REACH unaffected status
• MSL rating of 1 or better

The CPPC5LZ-A3B6-8.0TS from Cardinal Components Inc. meets all mandatory electrical and mechanical parameters for direct substitution. Both parts share identical frequency, output type, supply voltage, enable/disable function, frequency stability, package configuration, and physical footprint.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: 7C-8.000MBC-T

Use the original 7C-8.000MBC-T when available. This part is in active production with confirmed inventory of 1073 units. It carries RoHS compliance certification and meets all specified electrical and mechanical requirements for the intended application.

Substitute Selection: CPPC5LZ-A3B6-8.0TS

The CPPC5LZ-A3B6-8.0TS qualifies as a direct electrical and mechanical substitute. Selection of this alternative is appropriate when:

• Original part 7C-8.000MBC-T becomes unavailable
• Supply chain requirements necessitate a qualified secondary source
• Design specifications permit the extended operating temperature range (-55°C ~ 125°C versus -10°C ~ 70°C)
• Lower maximum supply current (25 mA versus 30 mA) is acceptable for the application
• Tape & Reel packaging format is compatible with assembly processes

Both parts maintain identical frequency, output type, supply voltage, enable/disable function, frequency stability, package configuration, and physical footprint. Both achieve RoHS3 compliance and REACH unaffected status. The substitute part provides enhanced thermal operating range and reduced supply current specifications, representing equivalent or superior performance characteristics.

Compliance Verification:

Both parts carry EAR99 export classification and 8542.39.0001 HTSUS code. MSL 1 rating indicates unlimited shelf life under controlled storage conditions for both options.

Frequently Asked Questions (FAQ)

Q: Can the CPPC5LZ-A3B6-8.0TS replace the 7C-8.000MBC-T in existing designs without modification?

A: Yes. Both parts share identical electrical specifications (8 MHz frequency, CMOS output, 3.3V supply, ±100 ppm stability, enable/disable function) and mechanical footprint (5.00mm × 3.20mm, 4-SMD no-lead package). No circuit modifications are required for direct substitution.

Q: What is the difference in physical height between these two parts?

A: The 7C-8.000MBC-T has a maximum seated height of 1.40 mm, while the CPPC5LZ-A3B6-8.0TS has a maximum seated height of 1.30 mm. The substitute part is 0.10 mm lower, which is compatible with standard PCB assembly clearances and does not affect functionality.

Q: Does the substitute part support enable/disable functionality?

A: Yes. The CPPC5LZ-A3B6-8.0TS includes enable/disable function identical to the original 7C-8.000MBC-T, allowing frequency output control through the enable pin.

Q: What is the difference in operating temperature range?

A: The 7C-8.000MBC-T operates from -10°C to 70°C, while the CPPC5LZ-A3B6-8.0TS operates from -55°C to 125°C. The substitute part supports a wider temperature range, making it suitable for applications requiring extended thermal performance.

Q: Are both parts RoHS compliant?

A: Yes. The 7C-8.000MBC-T is RoHS Compliant, and the CPPC5LZ-A3B6-8.0TS is ROHS3 Compliant. Both meet current RoHS requirements and are REACH unaffected.

Q: What is the difference in packaging format?

A: The 7C-8.000MBC-T is supplied in bulk packaging, while the CPPC5LZ-A3B6-8.0TS is supplied in Tape & Reel (TR) format. Tape & Reel packaging is standard for automated assembly processes and does not affect component performance.

Q: Is the frequency stability specification identical?

A: Yes. Both parts specify ±100 ppm frequency stability, ensuring equivalent frequency accuracy for timing-critical applications.

Q: What is the maximum supply current for each part?

A: The 7C-8.000MBC-T draws a maximum of 30 mA during normal operation. The CPPC5LZ-A3B6-8.0TS draws a maximum of 25 mA, representing lower power consumption. The substitute part also specifies a maximum disable current of 50 µA, which is not specified for the original part.

Q: Can these parts be used interchangeably in high-temperature applications?

A: The CPPC5LZ-A3B6-8.0TS is rated to 125°C and is suitable for high-temperature applications. The 7C-8.000MBC-T is rated only to 70°C and should not be used in applications exceeding this temperature. For designs requiring extended thermal performance, the substitute part is the appropriate selection.

Q: Are both parts classified under the same export control category?

A: Yes. Both parts carry EAR99 export classification and 8542.39.0001 HTSUS code, indicating identical export control treatment.