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

Part Overview

The ASFL1-12.000MHZ-ERS-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 are maintained across the same frequency, output type, supply voltage, and package configuration.

Substiute Parts

ASFL1-12.000MHZ-ERS-T

Abracon LLCIn Stock: 1041ASFL1-12.000MHZ-ERS-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-ERS-T is determined by strict equivalence across the following critical parameters:

• Frequency: 12 MHz (exact match required)
• Output Configuration: HCMOS, TTL (exact match required)
• Supply Voltage: 3.3V (exact match required)
• Enable/Disable Function: Present (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)
• Physical Dimensions: 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 meets all substitution criteria and is classified as a manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the ASFL1-12.000MHZ-ERS-T and ISM92-3351AH-12.000MHZ are Active product status devices with full RoHS3 compliance and REACH unaffected certification. Selection between these parts is based on the following considerations:

The ASFL1-12.000MHZ-ERS-T (Abracon LLC) operates at a maximum supply current of 15mA with a seated height of 0.051" (1.30mm).

The ISM92-3351AH-12.000MHZ (ILSI) operates at a maximum supply current of 40mA with a seated height of 0.063" (1.60mm). The increased current consumption and height must be evaluated against circuit design constraints and PCB layout requirements.

Both devices maintain identical electrical performance across frequency, output type, supply voltage, stability, and operating temperature specifications. Component selection should account for power budget and vertical clearance availability in the target application.

Frequently Asked Questions (FAQ)

Q: Can the ISM92-3351AH-12.000MHZ be used as a direct replacement for the ASFL1-12.000MHZ-ERS-T?

A: Yes, the ISM92-3351AH-12.000MHZ meets all critical electrical and mechanical substitution criteria. Both devices operate at 12 MHz with HCMOS/TTL output, 3.3V supply, enable/disable function, ±25ppm stability, and identical package dimensions. Physical height differs by 0.012" (0.30mm), which must be verified against PCB clearance specifications.

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

A: The primary differences are maximum supply current (ASFL1: 15mA vs ISM92: 40mA) and seated height (ASFL1: 1.30mm vs ISM92: 1.60mm). All other electrical and mechanical parameters are equivalent.

Q: Are both parts RoHS and REACH compliant?

A: Yes, both the ASFL1-12.000MHZ-ERS-T and ISM92-3351AH-12.000MHZ are ROHS3 compliant and REACH unaffected.

Q: What packaging format is used for these oscillators?

A: Both devices are supplied in Tape & Reel (TR) packaging with 4-SMD, No Lead surface mount configuration. Physical dimensions are 0.197" L x 0.126" W (5.00mm x 3.20mm).

Q: Does frequency stability differ between these parts?

A: No, both oscillators maintain ±25ppm frequency stability across the -20°C ~ 70°C operating temperature range.