LFXTAL082131 38.4 MHz Crystal Equivalent & Substitute Parts

Part Overview

The LFXTAL082131 is a 38.4 MHz fundamental mode crystal manufactured by IQD Frequency Products, designed for surface mount applications in 4-SMD, No Lead packaging. This active product is specified for load capacitance of 8pF with 60 Ohms equivalent series resistance and operates across the industrial temperature range of -40°C to 85°C. Alternative equivalent parts may be required due to inventory availability, supply chain considerations, or procurement preferences while maintaining identical electrical and mechanical specifications.

Substiute Parts

LFXTAL082131

IQD Frequency ProductsIn Stock: 804LFXTAL082131 Datasheet

Current PartRFQ

830108213109

Würth ElektronikIn Stock: 3795830108213109 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LFXTAL082131 is based on strict equivalence of the following critical parameters:

• Frequency: 38.4 MHz (exact match required)
• Frequency Tolerance: ±10ppm (exact match required)
• Load Capacitance: 8pF (exact match required)
• ESR: 60 Ohms (exact match required)
• Package / Case: 4-SMD, No Lead (exact match required)
• Physical Dimensions: 0.079" L x 0.063" W, 0.020" max height (exact match required)
• Operating Temperature Range: -40°C to 85°C (exact match required)
• Operating Mode: Fundamental (exact match required)

The substitute part identified maintains all electrical and mechanical parameters within the specified tolerances, ensuring direct compatibility in circuit applications without design modification or re-qualification.

Parameter Comparison

Engineering Selection Recommendations

Both the LFXTAL082131 and 830108213109 are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement. Selection between these parts is based on availability, supply chain logistics, and procurement preferences rather than technical differentiation. Both parts satisfy identical electrical performance requirements and mechanical constraints for 38.4 MHz crystal applications in surface mount designs.

Frequently Asked Questions (FAQ)

Q: Can the 830108213109 (Würth Elektronik) directly replace the LFXTAL082131 (IQD) without circuit modification?

A: Yes. Both parts are parametric equivalents with identical frequency, tolerance, load capacitance, ESR, package dimensions, and operating temperature range. No circuit redesign or re-qualification is required.

Q: Are there differences in moisture sensitivity between these parts?

A: The LFXTAL082131 specifies MSL 1 (Unlimited). The 830108213109 lists MSL as Not Applicable. Both are suitable for standard PCB assembly and storage conditions.

Q: What determines whether a crystal can substitute for the LFXTAL082131?

A: Substitution requires exact matching of frequency (38.4 MHz), frequency tolerance (±10ppm), load capacitance (8pF), ESR (60 Ohms), package type (4-SMD, No Lead), physical dimensions (2.00mm x 1.60mm x 0.50mm max), and operating temperature range (-40°C to 85°C).

Q: Are both parts suitable for industrial temperature applications?

A: Yes. Both parts operate across -40°C to 85°C, meeting industrial temperature specifications.

Q: What is the significance of the 4-SMD, No Lead package specification?

A: This package type defines the physical footprint, lead configuration, and soldering requirements. Both parts use identical packaging, ensuring compatibility with existing PCB layouts and assembly processes.