ASFL-40.000MHZ-CS Equivalent & Substitute Parts

Part Overview

The ASFL-40.000MHZ-CS is a 40 MHz crystal oscillator manufactured by Abracon LLC. This component is classified as Obsolete, which necessitates identification of active equivalent alternatives for continued system support and new design implementations. The part operates as a standard XO (crystal oscillator) with HCMOS and TTL output compatibility, designed for applications requiring precise 40 MHz frequency generation.

Due to its obsolete status, sourcing new inventory of the ASFL-40.000MHZ-CS presents supply chain challenges. Active substitute parts maintain the core frequency specification and output characteristics while offering improved long-term availability and manufacturing support.

Substiute Parts

ASFL-40.000MHZ-CS

Abracon LLCIn Stock: 713ASFL-40.000MHZ-CS Datasheet

Current PartRFQ

ASFL1-40.000MHZ-EC-T

Abracon LLCIn Stock: 1127ASFL1-40.000MHZ-EC-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASFL-40.000MHZ-CS is determined by the following critical parameters:

Frequency Match: The substitute part must operate at 40.000 MHz to maintain system timing specifications and circuit compatibility.

Manufacturer Consistency: Abracon LLC manufactures both the original and substitute parts, ensuring design continuity and performance alignment.

Compliance Certifications: Both parts must maintain ROHS3 compliance and REACH Unaffected status to satisfy regulatory requirements for the target application environment.

Moisture Sensitivity Level: MSL 1 (Unlimited) classification ensures the substitute part meets or exceeds the environmental handling requirements of the original component.

Output Type: The substitute part must provide HCMOS and TTL output compatibility to interface with existing circuit designs without modification.

The ASFL1-40.000MHZ-EC-T meets all substitution criteria as an active product with identical frequency specification and equivalent electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The ASFL1-40.000MHZ-EC-T is the designated substitute for the obsolete ASFL-40.000MHZ-CS based on the following engineering criteria:

Product Status Alignment: The ASFL1-40.000MHZ-EC-T maintains Active product status, ensuring continued manufacturing support, availability, and technical documentation from Abracon LLC.

Regulatory Compliance: Both components satisfy ROHS3 compliance and REACH Unaffected requirements, maintaining regulatory alignment for applications subject to environmental directives.

Moisture Handling: MSL 1 (Unlimited) classification on both parts confirms equivalent moisture sensitivity performance, eliminating special storage or handling requirements during assembly and deployment.

Frequency Specification: The 40 MHz frequency specification is maintained across both components, ensuring direct functional equivalence in timing-critical applications.

Supply Chain Continuity: With 1033 units in current inventory, the ASFL1-40.000MHZ-EC-T provides immediate availability for design transitions and production requirements.

Frequently Asked Questions (FAQ)

Q: Can the ASFL1-40.000MHZ-EC-T directly replace the ASFL-40.000MHZ-CS in existing designs?

A: Yes. Both components operate at 40 MHz with identical frequency specification, ROHS3 compliance, and MSL 1 rating. The substitute part is designed as a direct functional equivalent for the obsolete component.

Q: What is the significance of the ASFL1 series designation in the substitute part number?

A: The ASFL1 series represents the current active product line from Abracon LLC for 40 MHz crystal oscillators. This series designation indicates the part is actively manufactured and supported, distinguishing it from the obsolete ASFL series.

Q: Are there packaging differences between the original and substitute parts?

A: The ASFL-40.000MHZ-CS packaging specification is not provided in the available documentation. The ASFL1-40.000MHZ-EC-T is supplied in Tape & Reel (TR) packaging as a 4-SMD, No Lead surface mount component with dimensions of 5.00mm x 3.20mm and maximum seated height of 1.30mm.

Q: Does the substitute part support Enable/Disable functionality?

A: Yes. The ASFL1-40.000MHZ-EC-T includes Enable/Disable function capability, allowing dynamic control of oscillator output for power management applications.

Q: What supply voltage is required for the substitute part?

A: The ASFL1-40.000MHZ-EC-T operates at 3.3V supply voltage with maximum supply current of 45mA during normal operation and 10µA during disable mode.

Q: Is the frequency stability specification critical for my application?

A: The ASFL1-40.000MHZ-EC-T provides ±50ppm frequency stability across the operating temperature range of -20°C to 70°C. Verify this stability specification against your application requirements before final component selection.