7M-24.000MFEV-T Equivalent & Substitute Parts

Part Overview

The 7M-24.000MFEV-T is a 24 MHz fundamental mode crystal oscillator manufactured by TXC CORPORATION, designed for surface mount applications in 4-SMD, No Lead package configuration. This active product operates across the -20°C to 70°C temperature range with ±30ppm frequency stability and 8pF load capacitance. Substitute parts are identified to address inventory availability, packaging format requirements, or specific ESR (Equivalent Series Resistance) performance needs in circuit design applications.

Substiute Parts

7M-24.000MFEV-T

TXC CORPORATIONIn Stock: 7657M-24.000MFEV-T Datasheet

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7R-24.000MAAV-T

TXC CORPORATIONIn Stock: 19567R-24.000MAAV-T Datasheet

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8Z-24.000MAAV-T

TXC CORPORATIONIn Stock: 77808Z-24.000MAAV-T Datasheet

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FH2400032Z

Diodes IncorporatedIn Stock: 840FH2400032Z Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 7M-24.000MFEV-T is determined by the following critical parameters:

Primary Matching Criteria:

• Frequency: 24.0000 MHz (exact match required)
• Frequency Stability: ±30ppm (exact match required)
• Operating Mode: Fundamental (exact match required)
• Operating Temperature Range: -20°C to 70°C (exact match required)
• Package Type: 4-SMD, No Lead (exact match required)
• RoHS Compliance: Required

Secondary Compatibility Parameters:

• Load Capacitance: 8pF (primary specification); 10pF acceptable with circuit design verification
• ESR: 60 Ohms (nominal); range 50–150 Ohms acceptable depending on oscillator circuit design
• Physical Dimensions: Variations permitted within SMD footprint compatibility constraints
• Moisture Sensitivity Level: MSL 1 (Unlimited) required

All substitute parts listed meet the primary matching criteria. Variations in ESR and load capacitance reflect different series designs from TXC CORPORATION and alternative manufacturers, each suitable for specific circuit topologies and performance requirements.

Parameter Comparison

Engineering Selection Recommendations

7R-24.000MAAV-T (TXC CORPORATION)

This substitute is functionally equivalent to the 7M-24.000MFEV-T with identical frequency, stability, load capacitance, and temperature range specifications. The primary difference is ESR of 150 Ohms versus 60 Ohms in the main part. Selection of this part is appropriate when higher ESR tolerance is acceptable in the oscillator circuit design. The 7R series operates in Cut Tape packaging format. Physical dimensions are smaller (2.05 × 1.65 mm), which may require PCB layout verification for footprint compatibility. All compliance certifications (RoHS, MSL 1) are met.

8Z-24.000MAAV-T (TXC CORPORATION)

This substitute provides 24 MHz operation with ±30ppm stability and 8pF load capacitance, matching the main part specification. ESR is 100 Ohms, positioned between the 7M series (60 Ohms) and 7R series (150 Ohms). The 8Z series is supplied in Tape & Reel format and offers the highest inventory availability (7683 pcs). Physical dimensions (2.50 × 2.00 × 0.55 mm) are comparable to the main part footprint. All compliance requirements are satisfied.

FH2400032Z (Diodes Incorporated)

This substitute is from an alternative manufacturer (Diodes Incorporated, SaRonix-eCera™ FH series) and meets all primary substitution criteria: 24 MHz frequency, ±30ppm stability, fundamental mode operation, and -20°C to 70°C temperature range. Load capacitance is 10pF (versus 8pF in the main part) and ESR is 50 Ohms (lower than the main part). This part is suitable for applications where the 10pF load capacitance is compatible with circuit design parameters. ROHS3 compliance is confirmed. Tape & Reel packaging is standard. Physical dimensions (2.50 × 2.00 × 0.70 mm) are compatible with standard SMD assembly processes.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 7M-24.000MFEV-T with the 7R-24.000MAAV-T?

A: Yes. Both parts operate at 24 MHz with ±30ppm stability, 8pF load capacitance, and -20°C to 70°C temperature range. The primary difference is ESR: 60 Ohms (7M) versus 150 Ohms (7R). Substitution is valid if the oscillator circuit design accommodates the higher ESR specification. Verify circuit startup conditions and frequency accuracy with the higher ESR value.

Q: What is the difference between the 8Z-24.000MAAV-T and the main part?

A: The 8Z series has identical frequency (24 MHz), stability (±30ppm), load capacitance (8pF), and temperature range (-20°C to 70°C). ESR is 100 Ohms compared to 60 Ohms in the 7M series. Physical dimensions are slightly smaller (2.50 × 2.00 × 0.55 mm versus 3.20 × 2.50 × 0.80 mm). Both are RoHS compliant with MSL 1 rating. The 8Z series is available in higher quantities in Tape & Reel format.

Q: Is the FH2400032Z from Diodes Incorporated a direct substitute?

A: The FH2400032Z meets all critical substitution parameters: 24 MHz frequency, ±30ppm stability, fundamental mode, -20°C to 70°C operation, and 4-SMD No Lead package. Load capacitance is 10pF (versus 8pF) and ESR is 50 Ohms (versus 60 Ohms). This part is suitable for designs where 10pF load capacitance is acceptable. Verify oscillator circuit compatibility with the alternative manufacturer's crystal characteristics.

Q: What does ESR mean and why does it vary among these parts?

A: ESR (Equivalent Series Resistance) represents the internal resistance of the crystal element. It affects oscillator startup time, power consumption, and frequency stability. The 7M-24.000MFEV-T has 60 Ohms ESR, while substitutes range from 50 Ohms (FH2400032Z) to 150 Ohms (7R-24.000MAAV-T). Lower ESR generally requires less drive power; higher ESR may require circuit design adjustment. Select based on oscillator circuit specifications.

Q: Are all these parts RoHS compliant?

A: Yes. The 7M-24.000MFEV-T, 7R-24.000MAAV-T, and 8Z-24.000MAAV-T are RoHS Compliant. The FH2400032Z is ROHS3 Compliant. All parts meet RoHS requirements for lead-free and restricted substance compliance.

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

A: Cut Tape (CT) packaging supplies components in individual tape segments, suitable for smaller order quantities and manual assembly. Tape & Reel (TR) packaging supplies components on continuous reels, optimized for high-volume automated assembly. The 7R-24.000MAAV-T is available in Cut Tape format; the 8Z-24.000MAAV-T and FH2400032Z are supplied in Tape & Reel format. Select based on production volume and assembly equipment capability.

Q: Can I use the FH2400032Z if my circuit requires 8pF load capacitance?

A: The FH2400032Z has 10pF load capacitance. If your oscillator circuit is designed specifically for 8pF, substitution with a 10pF part may affect frequency accuracy and stability. Verify circuit design parameters and perform frequency testing if substitution is necessary. The 7R-24.000MAAV-T and 8Z-24.000MAAV-T both provide 8pF load capacitance matching the main part specification.

Q: What is Moisture Sensitivity Level (MSL) and why is it important?

A: MSL indicates the component's sensitivity to moisture absorption during storage and handling. MSL 1 (Unlimited) means the component has unlimited shelf life and requires no special moisture control during storage or assembly. All listed parts have MSL 1 rating, ensuring compatibility with standard manufacturing and storage practices.