7V-40.000MAKV-T Crystal Oscillator: Equivalent & Substitute Parts

Part Overview

The 7V-40.000MAKV-T is a 40 MHz fundamental mode crystal oscillator manufactured by TXC CORPORATION, designed for surface mount applications in precision timing circuits. This Active product operates across the industrial temperature range of -40°C to 125°C with a load capacitance of 8pF and an equivalent series resistance of 60 Ohms. The component is RoHS Compliant and Moisture Sensitivity Level 1 rated, indicating unlimited shelf life under standard storage conditions. Substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across the critical parameters that govern crystal oscillator functionality.

Substiute Parts

7V-40.000MAKV-T

TXC CORPORATIONIn Stock: 7907V-40.000MAKV-T Datasheet

Current PartRFQ

7M-40.000MAKV-T

TXC CORPORATIONIn Stock: 21407M-40.000MAKV-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7V-40.000MAKV-T is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Frequency: 40 MHz (exact match required)
• Frequency Tolerance: ±30 ppm (exact match required)
• Frequency Stability: ±60 ppm (exact match required)
• Load Capacitance: 8 pF (exact match required)
• Equivalent Series Resistance: 60 Ohms (exact match required)
• Operating Mode: Fundamental (exact match required)

Mechanical Equivalence Criteria:

• Mounting Type: Surface Mount (exact match required)
• Package / Case: 4-SMD, No Lead (exact match required)
• Size / Dimension: 3.20 mm x 2.50 mm (exact match required)

Environmental & Compliance Criteria:

• Operating Temperature Range: -40°C to 125°C (exact match required)
• RoHS Status: RoHS Compliant (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

The 7M-40.000MAKV-T qualifies as a direct substitute because it maintains identical electrical specifications, mechanical dimensions, and environmental ratings across all critical parameters. The difference in series designation (7M versus 7V) and packaging format (Tape & Reel versus standard packaging) does not affect functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: 7V-40.000MAKV-T

The 7V-40.000MAKV-T is the specified part number and remains the primary selection when available. This part maintains Active product status with 712 pieces in current inventory, ensuring supply continuity and standard packaging availability.

Substitute Selection: 7M-40.000MAKV-T

The 7M-40.000MAKV-T is a direct functional equivalent suitable for substitution in all circuit applications requiring a 40 MHz crystal oscillator with 8 pF load capacitance and 60 Ohm ESR. This substitute maintains:

• Identical electrical performance across all frequency and impedance specifications
• Identical mechanical compatibility with 4-SMD, No Lead package format and 3.20 mm x 2.50 mm footprint
• Identical environmental operating range (-40°C to 125°C)
• Identical compliance certifications (RoHS Compliant, REACH Unaffected, MSL 1)
• Active product status with higher inventory availability (2054 pieces)

The 7M-40.000MAKV-T is supplied in Tape & Reel packaging format, which is standard for high-volume manufacturing environments. The maximum seated height of 0.80 mm on the substitute is lower than the 0.90 mm specification of the main part, presenting no compatibility constraint for PCB assembly clearance.

Both parts are manufactured by TXC CORPORATION and carry identical ECCN (EAR99) and HTSUS (8541.60.0060) classifications.

Frequently Asked Questions (FAQ)

Q: Can the 7M-40.000MAKV-T be used as a direct replacement for the 7V-40.000MAKV-T in production?

A: Yes. The 7M-40.000MAKV-T is electrically and mechanically equivalent across all critical parameters. Both parts deliver identical frequency (40 MHz), frequency tolerance (±30 ppm), load capacitance (8 pF), and ESR (60 Ohms). The package footprint, mounting type, and operating temperature range are identical. No circuit redesign or PCB layout modification is required.

Q: What is the difference between the 7V and 7M series designations?

A: The series designation reflects TXC CORPORATION's internal product line classification. The 7V and 7M series share identical electrical and mechanical specifications for this 40 MHz crystal oscillator. The primary difference is packaging format: the 7V-40.000MAKV-T uses standard packaging, while the 7M-40.000MAKV-T is supplied in Tape & Reel format for automated assembly processes.

Q: Does the lower maximum seated height (0.80 mm vs. 0.90 mm) of the 7M-40.000MAKV-T affect PCB design?

A: No. The 0.80 mm maximum seated height of the 7M-40.000MAKV-T is lower than the 0.90 mm specification of the 7V-40.000MAKV-T, which provides additional clearance margin. This presents no compatibility constraint for PCB assembly, component placement, or enclosure design. Both parts fit within the same 4-SMD, No Lead footprint.

Q: Are both parts RoHS Compliant?

A: Yes. Both the 7V-40.000MAKV-T and 7M-40.000MAKV-T are RoHS Compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, indicating unlimited shelf life under standard storage conditions. Both parts are REACH Unaffected.

Q: What is the load capacitance specification, and why is it critical for substitution?

A: The load capacitance is 8 pF for both parts. This specification defines the capacitive load that the crystal oscillator is designed to drive and must be matched exactly in the circuit design. Substitution is valid only when load capacitance remains 8 pF. Mismatched load capacitance will result in frequency deviation outside the specified tolerance.

Q: Can these 40 MHz crystals be used in applications requiring different frequency values?

A: No. These parts are specified for 40 MHz operation with ±30 ppm frequency tolerance. They are not suitable for applications requiring different frequency values. Frequency substitution requires a different crystal part number with the required frequency specification.

Q: What does the ±60 ppm frequency stability specification indicate?

A: Frequency stability of ±60 ppm defines the maximum frequency variation over the operating temperature range of -40°C to 125°C. This specification is identical for both the 7V-40.000MAKV-T and 7M-40.000MAKV-T and must be maintained for substitution validity.