ASFL1-12.000MHZ-ER-T Equivalent & Substitute Parts

Part Overview

The ASFL1-12.000MHZ-ER-T is a 12 MHz XO (Standard) oscillator manufactured by Abracon LLC. This surface mount crystal oscillator provides HCMOS and TTL output with 3.3V supply voltage and Enable/Disable functionality. The device is classified as Active product status with full RoHS3 compliance and REACH unaffected certification. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, ensuring functional interchangeability in target applications.

Substiute Parts

ASFL1-12.000MHZ-ER-T

Abracon LLCIn Stock: 1187ASFL1-12.000MHZ-ER-T Datasheet

Current PartRFQ

ISM92-3351AH-12.000MHZ

ILSIIn Stock: 5945ISM92-3351AH-12.000MHZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ASFL1-12.000MHZ-ER-T is determined by strict alignment of the following critical parameters:

• Frequency: 12 MHz (exact match required)
• Output Type: HCMOS, TTL (exact match required)
• Supply Voltage: 3.3V (exact match required)
• Function: Enable/Disable (exact match required)
• Frequency Stability: ±25ppm (exact match required)
• Operating Temperature Range: -20°C ~ 70°C (exact match required)
• Package / Case: 4-SMD, No Lead (exact match required)
• Size / Dimension: 0.197" L x 0.126" W (5.00mm x 3.20mm) (exact match required)
• Mounting Type: Surface Mount (exact match required)

The ISM92-3351AH-12.000MHZ from ILSI meets all critical electrical and mechanical parameters, qualifying as a direct substitute for the ASFL1-12.000MHZ-ER-T.

Parameter Comparison

Engineering Selection Recommendations

Both the ASFL1-12.000MHZ-ER-T and ISM92-3351AH-12.000MHZ are Active product status devices with full RoHS3 compliance and REACH unaffected certification. Selection between these parts should account for the following documented differences:

The ISM92-3351AH-12.000MHZ exhibits a maximum seated height of 0.063" (1.60mm) compared to 0.051" (1.30mm) for the ASFL1-12.000MHZ-ER-T. This 0.012" (0.30mm) height differential may impact PCB layout clearance in space-constrained applications.

The ISM92-3351AH-12.000MHZ specifies a maximum supply current of 40mA versus 15mA for the ASFL1-12.000MHZ-ER-T. Power consumption requirements should be evaluated for battery-powered or thermally sensitive applications.

Both devices maintain identical frequency stability (±25ppm), operating temperature range (-20°C ~ 70°C), and regulatory compliance status, confirming functional equivalence for standard oscillator applications.

Frequently Asked Questions (FAQ)

Q: Can the ISM92-3351AH-12.000MHZ directly replace the ASFL1-12.000MHZ-ER-T in existing designs?

A: Yes, the ISM92-3351AH-12.000MHZ meets all critical electrical parameters (frequency, output type, supply voltage, function, and frequency stability) and mechanical specifications (package, size, and mounting type). PCB layout verification is required to confirm the 0.30mm height difference does not create clearance conflicts.

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

A: The primary differences are maximum seated height (0.051" vs 0.063") and maximum supply current (15mA vs 40mA). All other electrical and mechanical parameters are identical.

Q: Are both parts RoHS3 compliant?

A: Yes, both the ASFL1-12.000MHZ-ER-T and ISM92-3351AH-12.000MHZ are ROHS3 Compliant and REACH Unaffected.

Q: What packaging formats are available for the ISM92-3351AH-12.000MHZ?

A: The ISM92-3351AH-12.000MHZ is supplied in Tape & Reel (TR) packaging.

Q: Does the higher supply current of the ISM92-3351AH-12.000MHZ affect circuit design?

A: The 40mA maximum supply current specification should be evaluated in power-sensitive applications. Standard circuit design practices for 3.3V oscillators remain applicable; however, power budget calculations should account for the higher current rating.