ASFL1-29.4912MHZ-EC-T Equivalent & Substitute Parts

Part Overview

The ASFL1-29.4912MHZ-EC-T is a 29.4912 MHz XO (Standard) crystal oscillator manufactured by Abracon LLC. This surface mount oscillator operates at 3.3V with HCMOS and TTL output compatibility, featuring enable/disable functionality in a compact 4-SMD, No Lead package. The part is Active status and widely used in timing-critical applications requiring precise frequency generation. Substitute parts are identified to provide alternatives for inventory availability, extended operating temperature ranges, or relaxed frequency stability requirements while maintaining core electrical and mechanical compatibility.

Substiute Parts

ASFL1-29.4912MHZ-EC-T

Abracon LLCIn Stock: 775ASFL1-29.4912MHZ-EC-T Datasheet

Current PartRFQ

ASFL1-29.4912MHZ-L-T

Abracon LLCIn Stock: 1629ASFL1-29.4912MHZ-L-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASFL1-29.4912MHZ-EC-T is determined by the following critical parameters that must remain constant across all equivalent parts:

• Frequency: 29.4912 MHz (exact match required)
• Output Type: HCMOS, TTL (exact match required)
• Supply Voltage: 3.3V (exact match required)
• Function: Enable/Disable (exact match required)
• Package / Case: 4-SMD, No Lead (exact match required)
• Mounting Type: Surface Mount (exact match required)
• Physical Dimensions: 0.197" L x 0.126" W (5.00mm x 3.20mm) (exact match required)
• Height - Seated (Max): 0.051" (1.30mm) (exact match required)

Parameters that may vary within acceptable substitution ranges:

• Frequency Stability: ±50ppm (main part) to ±100ppm (substitute acceptable)
• Operating Temperature: -20°C ~ 70°C (main part) to -40°C ~ 85°C (substitute acceptable with extended range)
• Current - Supply (Max): 15mA (both parts identical)
• Current - Supply (Disable) (Max): 10µA (both parts identical)

The ASFL1-29.4912MHZ-L-T is qualified as a direct substitute based on identical electrical output characteristics, package specifications, and compliance certifications, with relaxed frequency stability and extended operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

Both the ASFL1-29.4912MHZ-EC-T and ASFL1-29.4912MHZ-L-T are Active status products manufactured by Abracon LLC with identical ROHS3 compliance and MSL ratings. Selection between these parts depends on application-specific requirements:

ASFL1-29.4912MHZ-EC-T is appropriate for applications requiring tighter frequency stability (±50ppm) within the standard operating temperature range of -20°C to 70°C.

ASFL1-29.4912MHZ-L-T is appropriate for applications requiring extended operating temperature coverage (-40°C to 85°C) where relaxed frequency stability (±100ppm) is acceptable. This substitute provides broader environmental operating conditions while maintaining identical electrical output characteristics and package specifications.

Both parts maintain identical supply current specifications (15mA maximum, 10µA in disable mode) and are pin-compatible within the 4-SMD, No Lead package format.

Frequently Asked Questions (FAQ)

Q: Can ASFL1-29.4912MHZ-L-T be used as a direct replacement for ASFL1-29.4912MHZ-EC-T?

A: Yes, the ASFL1-29.4912MHZ-L-T is a qualified substitute. Both parts share identical frequency (29.4912 MHz), output type (HCMOS, TTL), supply voltage (3.3V), enable/disable function, and package specifications (4-SMD, No Lead, 5.00mm x 3.20mm). The substitute operates across an extended temperature range (-40°C to 85°C versus -20°C to 70°C) with relaxed frequency stability (±100ppm versus ±50ppm).

Q: What are the key differences between these two oscillators?

A: The primary differences are frequency stability tolerance and operating temperature range. The main part (ASFL1-29.4912MHZ-EC-T) offers ±50ppm stability over -20°C to 70°C. The substitute (ASFL1-29.4912MHZ-L-T) offers ±100ppm stability over -40°C to 85°C. All other electrical and mechanical parameters are identical.

Q: Are both parts available in the same packaging format?

A: Yes. Both ASFL1-29.4912MHZ-EC-T and ASFL1-29.4912MHZ-L-T are supplied in Tape & Reel (TR) packaging with identical 4-SMD, No Lead package specifications and physical dimensions.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL rating of 1 (Unlimited). Both maintain identical regulatory and environmental compliance certifications.

Q: Which part should I select for a wide temperature application?

A: For applications requiring operation across extended temperature ranges, the ASFL1-29.4912MHZ-L-T is the appropriate selection, as it operates from -40°C to 85°C compared to the main part's -20°C to 70°C range.

Q: Is frequency stability a critical factor in my selection?

A: Frequency stability becomes critical only if your application requires the tighter ±50ppm tolerance. If your circuit design accommodates ±100ppm stability, the ASFL1-29.4912MHZ-L-T substitute is fully compatible.