830003329B Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 830003329B is a 7.3728 MHz quartz crystal oscillator in HC-49/U package configuration, designed for through-hole mounting applications. This fundamental-mode crystal operates across the temperature range of -10°C to 60°C and is specified for 30pF load capacitance with 50 Ohms equivalent series resistance. The part maintains active product status and is ROHS3 compliant. Substitute parts are identified to address inventory availability, supply chain continuity, or specific compliance requirements while maintaining full electrical and mechanical compatibility.

Key Parameters

Parameter	Specification
Frequency	7.3728 MHz
Frequency Tolerance	±20ppm
Frequency Stability	±50ppm
Load Capacitance	30pF
Equivalent Series Resistance (ESR)	50 Ohms
Operating Mode	Fundamental
Operating Temperature Range	-10°C to 60°C
Package / Case	HC-49/U
Mounting Type	Through Hole
Physical Dimensions	0.435" L x 0.183" W (11.05mm x 4.65mm)
Height - Seated (Max)	0.530" (13.46mm)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 830003329B is based on strict equivalence across all critical electrical and mechanical parameters. The substitute part LFXTAL003329BULK from IQD Frequency Products matches the main part across the following determinative parameters:

Frequency: 7.3728 MHz
Frequency Tolerance: ±20ppm
Frequency Stability: ±50ppm
Load Capacitance: 30pF
Equivalent Series Resistance: 50 Ohms
Operating Mode: Fundamental
Operating Temperature Range: -10°C to 60°C
Package / Case: HC-49/U
Mounting Type: Through Hole
Physical Dimensions: 0.435" L x 0.183" W (11.05mm x 4.65mm)
Height - Seated (Max): 0.530" (13.46mm)

Both parts are active products with ROHS3 compliance and identical ECCN and HTSUS classifications. The substitute part is classified as a parametric equivalent and maintains full interchangeability in circuit applications requiring these specifications.

Parameter Comparison

Parameter	830003329B (Würth Elektronik)	LFXTAL003329BULK (IQD Frequency Products)
Frequency	7.3728 MHz	7.3728 MHz
Frequency Tolerance	±20ppm	±20ppm
Frequency Stability	±50ppm	±50ppm
Load Capacitance	30pF	30pF
ESR (Equivalent Series Resistance)	50 Ohms	50 Ohms
Operating Mode	Fundamental	Fundamental
Operating Temperature Range	-10°C to 60°C	-10°C to 60°C
Package / Case	HC-49/U	HC-49/U
Mounting Type	Through Hole	Through Hole
Physical Dimensions (L x W)	0.435" x 0.183" (11.05mm x 4.65mm)	0.435" x 0.183" (11.05mm x 4.65mm)
Height - Seated (Max)	0.530" (13.46mm)	0.530" (13.46mm)
Product Status	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
ECCN	EAR99	EAR99
HTSUS	8541.60.0050	8541.60.0050

Engineering Selection Recommendations

Both the 830003329B and LFXTAL003329BULK are active products with identical electrical specifications and mechanical form factors. Selection between these parts is based on the following factors:

Availability and Inventory: The 830003329B (Würth Elektronik) has 977 pieces in stock, while the LFXTAL003329BULK (IQD Frequency Products) has 807 pieces available. Either part is suitable for immediate procurement.

Compliance Status: Both parts are ROHS3 compliant and carry the same ECCN and HTSUS classifications. The LFXTAL003329BULK is classified as REACH Affected, while the 830003329B is REACH Unaffected. This distinction may be relevant for specific regulatory jurisdictions or end-use applications.

Manufacturer Considerations: The 830003329B is manufactured by Würth Elektronik, a major European passive component supplier. The LFXTAL003329BULK is manufactured by IQD Frequency Products, a specialized frequency control manufacturer. Both manufacturers maintain established quality standards for quartz crystal products.

Selection should be based on supply chain strategy, preferred supplier relationships, and specific regulatory requirements of the application or end market.

Frequently Asked Questions (FAQ)

Q: Are the 830003329B and LFXTAL003329BULK electrically interchangeable?

A: Yes. Both parts are specified for identical frequency (7.3728 MHz), frequency tolerance (±20ppm), load capacitance (30pF), and equivalent series resistance (50 Ohms). They operate in the same temperature range (-10°C to 60°C) and use the same fundamental operating mode. No circuit modifications are required for substitution.

Q: Can these crystals be used interchangeably in PCB designs?

A: Yes. Both parts use the HC-49/U package with identical physical dimensions (0.435" L x 0.183" W, height 0.530" max) and through-hole mounting configuration. PCB footprints and component placement are identical.

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

A: Frequency tolerance (±20ppm) specifies the initial accuracy of the crystal at the time of manufacture under specified conditions. Frequency stability (±50ppm) defines the maximum frequency variation over the operating temperature range (-10°C to 60°C) and operating life.

Q: Are both parts RoHS compliant?

A: Yes. Both the 830003329B and LFXTAL003329BULK are ROHS3 compliant, meeting the requirements of Directive 2011/65/EU as amended by Directive (EU) 2015/863.

Q: What is the significance of the REACH Affected designation on the LFXTAL003329BULK?

A: The REACH Affected status indicates that the part or its materials are subject to the European REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) regulation. The 830003329B is REACH Unaffected. This distinction may impact supply chain documentation and regulatory compliance requirements depending on the end-use application and destination market.

Q: Can I mix these two part numbers in the same production batch?

A: Both parts meet identical electrical and mechanical specifications and are suitable for use in the same circuit design. However, component traceability and supply chain documentation should reflect the specific manufacturer and part number used in each unit.

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