7M-19.2000MAHC-T Crystal Equivalent & Substitute Parts

Part Overview

The 7M-19.2000MAHC-T is a 19.2 MHz fundamental mode crystal oscillator manufactured by TXC CORPORATION in a 4-SMD, No Lead surface mount package. This component is actively produced and widely used in timing and frequency control applications requiring precise 19.2 MHz oscillation. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained within the specified tolerances, ensuring direct functional replacement in circuit designs without redesign requirements.

Substiute Parts

7M-19.2000MAHC-T

TXC CORPORATIONIn Stock: 9647M-19.2000MAHC-T Datasheet

Current PartRFQ

7M-19.200MAHV-T

FTSIn Stock: 40617M-19.200MAHV-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 7M-19.2000MAHC-T are identified based on strict equivalence of the following parameters:

Critical Matching Parameters:

• Frequency: 19.2 MHz (exact match required)
• Frequency Stability: ±30 ppm (exact match required)
• Operating Temperature Range: -40°C to 85°C (exact match required)
• Package / Case: 4-SMD, No Lead (exact match required)
• Physical Dimensions: 3.20mm L x 2.50mm W (exact match required)
• Maximum Seated Height: 0.80mm (exact match required)

Allowable Variation Parameters:

• Load Capacitance: Substitutes may vary within the range of 8-9 pF, provided the circuit design accommodates the difference through load capacitor adjustment
• ESR (Equivalent Series Resistance): Substitutes may vary within the range of 60-80 Ohms, provided the oscillator circuit design supports the variation

Compliance Parameters:

• RoHS Status: Compliant (required for equivalent substitution)
• Moisture Sensitivity Level: MSL 1 (Unlimited) or equivalent

The 7M-19.200MAHV-T meets all critical matching parameters and operates within allowable variation ranges for load capacitance and ESR.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (7M-19.2000MAHC-T): The 7M-19.2000MAHC-T is the specified component with active production status, RoHS compliance, and MSL 1 rating. This part is suitable for applications requiring 19.2 MHz timing with ±30 ppm stability across the -40°C to 85°C operating range.

Substitute Part Selection (7M-19.200MAHV-T): The 7M-19.200MAHV-T is a qualified substitute when the primary part is unavailable. This part maintains identical frequency, stability, operating temperature range, and physical dimensions. The 1 pF reduction in load capacitance (9 pF to 8 pF) and 20 Ohm reduction in ESR (80 Ohms to 60 Ohms) are within acceptable engineering tolerances for 19.2 MHz crystal applications. Both parts are RoHS compliant and carry MSL 1 rating, ensuring equivalent environmental and regulatory compliance.

Selection Criteria:

• Both parts are actively produced and available
• Both parts meet RoHS compliance requirements
• Both parts carry MSL 1 (Unlimited) moisture sensitivity rating
• Physical footprint and mounting compatibility are identical
• Electrical performance parameters are equivalent within industry standards for 19.2 MHz crystals

Frequently Asked Questions (FAQ)

Q: Can the 7M-19.200MAHV-T directly replace the 7M-19.2000MAHC-T without circuit modification?

A: The 7M-19.200MAHV-T is mechanically and electrically compatible for direct substitution in most applications. The 1 pF difference in load capacitance may require minor adjustment to the circuit's load capacitor network if precise frequency tuning is critical. The lower ESR (60 Ohms vs. 80 Ohms) typically improves oscillation startup characteristics and is not a limiting factor for substitution.

Q: What is the significance of the load capacitance difference between these parts?

A: Load capacitance (9 pF vs. 8 pF) affects the crystal's resonant frequency in the oscillator circuit. The difference of 1 pF is within the ±30 ppm frequency stability specification of both parts. Circuit designers should verify that the load capacitor network can accommodate the 8 pF specification if the substitute part is used. Typical oscillator circuits include adjustable load capacitors that can compensate for this variation.

Q: Are there any compliance or regulatory differences between these parts?

A: Both parts are RoHS compliant and carry MSL 1 (Unlimited) ratings. The main part lists REACH Status as "REACH Unaffected," while the substitute lists "REACH info available upon request." For applications requiring specific REACH documentation, contact the manufacturer directly.

Q: What is the impact of the ESR difference on circuit performance?

A: The substitute part has lower ESR (60 Ohms vs. 80 Ohms). Lower ESR generally improves oscillator startup time and reduces power consumption. This difference is not a limiting factor for substitution and typically represents an improvement in circuit performance.

Q: Are the physical dimensions and mounting compatibility identical?

A: Yes. Both parts use the 4-SMD, No Lead package with identical dimensions (3.20mm L x 2.50mm W) and maximum seated height (0.80mm). PCB footprints and reflow soldering profiles are identical, enabling direct mechanical substitution.

Q: What is the operating temperature range for both parts?

A: Both parts operate across the identical temperature range of -40°C to 85°C. This ensures equivalent performance across all specified environmental conditions.

Q: Can I use the 7M-19.200MAHV-T in high-reliability or aerospace applications?

A: Both parts are actively produced with RoHS compliance and MSL 1 ratings. For high-reliability or aerospace applications, consult the detailed product datasheets and manufacturer specifications to confirm qualification status for your specific application requirements.