ASCSM-15.000MHZ-LR-T Equivalent & Substitute Parts

Part Overview

The ASCSM-15.000MHZ-LR-T is a 15 MHz MEMS oscillator manufactured by Abracon LLC, designed for applications requiring a standard XO (crystal oscillator) with CMOS output. This component operates across a 1.7V to 3.6V supply voltage range and features enable/disable functionality. The device is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, design updates, and procurement continuity.

Substiute Parts

ASCSM-15.000MHZ-LR-T

Abracon LLCIn Stock: 743ASCSM-15.000MHZ-LR-T Datasheet

Current PartRFQ

Key Parameters

Substitute Part Grouping Explanation

No direct substitute parts are currently available in the provided database. Substitution for the ASCSM-15.000MHZ-LR-T requires identification of alternative oscillators that meet the following critical parameters:

Essential Matching Criteria:

• Frequency: 15 MHz (exact match required)
• Output Type: CMOS
• Supply Voltage Range: 1.7V ~ 3.6V (minimum compatibility)
• Function: Enable/Disable capability
• Package Type: 4-UFBGA or CSPBGA (or compatible footprint)
• Operating Temperature: -40°C ~ 85°C (minimum range)
• Frequency Stability: ±25ppm or better

Flexible Parameters (may vary within application tolerance):

• Supply Current (6.5mA maximum is typical for this class)
• Disable Current (15µA is low-power specification)
• Base Resonator Technology (MEMS or quartz acceptable if other parameters align)

Parameter Comparison

No substitute parts are available for comparison at this time.

Engineering Selection Recommendations

Given the obsolete status of the ASCSM-15.000MHZ-LR-T, component selection should prioritize:

Compliance & Certification Alignment:

• Maintain RoHS3 compliance for new designs
• Verify REACH compliance status for supply chain continuity
• Confirm MSL rating compatibility with assembly processes

Functional Continuity:

• Ensure replacement oscillators support the same enable/disable control interface
• Verify CMOS output compatibility with existing receiver circuits
• Confirm supply voltage range encompasses system operating conditions

Physical Integration:

• Validate package footprint compatibility or plan PCB redesign if necessary
• Confirm maximum seated height does not exceed available board clearance
• Assess thermal characteristics for the intended application environment

Frequently Asked Questions (FAQ)

Q: Why is the ASCSM-15.000MHZ-LR-T listed as obsolete? A: Obsolete status indicates the manufacturer has discontinued production. Existing inventory may be available through authorized distributors, but long-term supply cannot be guaranteed.

Q: What parameters must an alternative oscillator match exactly? A: The frequency (15 MHz), output type (CMOS), supply voltage range (1.7V ~ 3.6V), and enable/disable function are non-negotiable. Package type and thermal specifications must also be compatible with your application.

Q: Can I substitute a different frequency oscillator? A: No. Frequency is application-critical and cannot be changed without circuit redesign. Only 15 MHz oscillators are suitable replacements.

Q: What is the significance of the 4-UFBGA package? A: This ultra-fine ball grid array package indicates a very small form factor (1.79mm x 1.25mm). Replacement parts must use the same or compatible package to maintain PCB layout integrity.

Q: Does the enable/disable function affect substitution? A: Yes. If your circuit relies on the enable/disable capability for power management, the replacement oscillator must support this function. Oscillators without this feature are not suitable.

Q: What does ±25ppm frequency stability mean for substitution? A: This specification defines the maximum frequency deviation across temperature and supply voltage variations. Replacement oscillators should meet or exceed this stability to maintain system performance.

Q: Is RoHS3 compliance mandatory for a substitute? A: For new designs and most modern applications, yes. RoHS3 compliance ensures environmental and regulatory alignment with current manufacturing standards.