ASFL1-32.768MHZ-EC-T Equivalent & Substitute Parts

Part Overview

The ASFL1-32.768MHZ-EC-T is a 32.768 MHz crystal oscillator manufactured by Abracon LLC, designed for applications requiring precise frequency generation with enable/disable functionality. This HCMOS/TTL output oscillator operates at 3.3V supply voltage and is housed in a compact 4-SMD, No Lead surface mount package. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained within specified parameter tolerances.

Substiute Parts

ASFL1-32.768MHZ-EC-T

Abracon LLCIn Stock: 1101ASFL1-32.768MHZ-EC-T Datasheet

Current PartRFQ

ASFL1-32.768MHZ-L-T

Abracon LLCIn Stock: 1576ASFL1-32.768MHZ-L-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASFL1-32.768MHZ-EC-T is determined by the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 32.768 MHz
• Output Type: HCMOS, TTL
• Supply Voltage: 3.3V
• Function: Enable/Disable
• Package Type: 4-SMD, No Lead
• Package Dimensions: 5.00mm x 3.20mm
• Maximum Height: 1.30mm

Allowable Variation Parameters:

• Frequency Stability: ±50ppm to ±100ppm
• Operating Temperature Range: -20°C ~ 70°C to -40°C ~ 85°C
• Supply Current: Up to 45mA
• Disable Current: Up to 10µA

The ASFL1-32.768MHZ-L-T qualifies as a direct substitute because it maintains identical frequency, output characteristics, supply voltage, function, and package specifications while operating across an extended temperature range with relaxed frequency stability tolerance.

Parameter Comparison

Engineering Selection Recommendations

Both the ASFL1-32.768MHZ-EC-T and ASFL1-32.768MHZ-L-T are active production parts with identical RoHS3 compliance and unlimited moisture sensitivity ratings. The ASFL1-32.768MHZ-L-T provides extended operating temperature range (-40°C ~ 85°C versus -20°C ~ 70°C) and relaxed frequency stability tolerance (±100ppm versus ±50ppm). Selection between these parts depends on application temperature requirements and frequency accuracy specifications. Both parts maintain identical electrical performance characteristics for supply current, disable current, and output signal integrity. Mechanical compatibility is assured through identical package dimensions and mounting specifications.

Frequently Asked Questions (FAQ)

Q: Can ASFL1-32.768MHZ-L-T replace ASFL1-32.768MHZ-EC-T in all applications?

A: Direct substitution is valid when application operating temperature does not exceed -20°C ~ 70°C and frequency stability tolerance of ±100ppm is acceptable. Applications requiring tighter frequency stability (±50ppm) or extended temperature operation should retain the original part specification.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use 4-SMD, No Lead packaging with dimensions of 5.00mm x 3.20mm and maximum seated height of 1.30mm. PCB layout and reflow profiles are interchangeable.

Q: What is the difference in frequency stability between these oscillators?

A: The ASFL1-32.768MHZ-EC-T specifies ±50ppm frequency stability, while the ASFL1-32.768MHZ-L-T specifies ±100ppm. This represents a 2x relaxation in tolerance. Applications with strict frequency accuracy requirements should use the tighter specification part.

Q: Do both parts support enable/disable functionality?

A: Yes. Both the ASFL1-32.768MHZ-EC-T and ASFL1-32.768MHZ-L-T include enable/disable control with maximum disable current of 10µA, enabling power management in battery-operated applications.

Q: Are there compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry unlimited moisture sensitivity rating (MSL 1). Regulatory and environmental compliance is equivalent.