830059643 26 MHz Crystal Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 830059643 is a 26 MHz fundamental mode crystal oscillator in surface mount packaging. This active product is designed for applications requiring precise frequency generation with tight tolerance specifications. The part is manufactured in a 4-SMD, No Lead configuration with RoHS3 compliance. Substitute parts become necessary when primary inventory is unavailable, when supply chain optimization is required, or when design flexibility across qualified manufacturers is needed while maintaining identical electrical and mechanical performance.

Substiute Parts

830059643

Würth ElektronikIn Stock: 1861830059643 Datasheet

Current PartRFQ

LFXTAL059643

IQD Frequency ProductsIn Stock: 2130LFXTAL059643 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 830059643 is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must match identically for a part to function as a direct substitute:

• Frequency: 26 MHz
• Frequency Tolerance: ±20ppm
• Frequency Stability: ±30ppm
• Load Capacitance: 18pF
• ESR: 50 Ohms
• Operating Mode: Fundamental
• Operating Temperature Range: -40°C to 85°C
• Package / Case: 4-SMD, No Lead
• Physical Dimensions: 3.20mm x 2.50mm
• Height - Seated (Max): 0.80mm
• RoHS Status: ROHS3 Compliant

Parts meeting all these criteria are classified as parametric equivalents and may be used interchangeably in circuit designs without modification to PCB layout, schematic, or load network calculations.

Parameter Comparison

Engineering Selection Recommendations

Both the Würth Elektronik 830059643 and the IQD Frequency Products LFXTAL059643 are active products with identical electrical specifications and mechanical compatibility. Selection between these parts may be based on:

• Inventory availability and lead time requirements
• Supply chain qualification and preferred vendor status
• Cost considerations within procurement parameters
• Existing design documentation and component history

Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The identical package footprint, height profile, and electrical characteristics ensure direct substitution without PCB redesign or circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the LFXTAL059643 be used as a direct replacement for the 830059643 without PCB modifications?

A: Yes. Both parts share identical package dimensions (3.20mm x 2.50mm), height (0.80mm), and electrical specifications. No PCB layout changes are required.

Q: Are the load network calculations the same for both parts?

A: Yes. Both parts have identical load capacitance (18pF) and ESR (50 Ohms), requiring identical external load network design.

Q: Do both parts operate across the same temperature range?

A: Yes. Both parts operate from -40°C to 85°C with identical frequency stability (±30ppm) and tolerance (±20ppm) across this range.

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

A: This indicates a surface mount crystal package with four solder pads and no through-hole leads. Both parts use this identical package type, ensuring mechanical and electrical compatibility on the same PCB design.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS code 8541.60.0060.

Q: What is the difference between frequency tolerance and frequency stability?

A: Frequency tolerance (±20ppm) specifies the initial accuracy at room temperature. Frequency stability (±30ppm) specifies the maximum frequency variation across the full operating temperature range (-40°C to 85°C). Both parts meet identical specifications for both parameters.