830003277B Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 830003277B is a 9.8304 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	9.8304 MHz
Frequency Tolerance	±20ppm
Frequency Stability	±50ppm
Load Capacitance	30pF
ESR (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)
RoHS Status	RoHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 830003277B is based on strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameters (Non-Negotiable):

Frequency: 9.8304 MHz
Frequency Tolerance: ±20ppm
Frequency Stability: ±50ppm
Load Capacitance: 30pF
ESR: 50 Ohms
Operating Mode: Fundamental

Mechanical Parameters (Non-Negotiable):

Package Type: 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)

Environmental & Compliance Parameters:

Operating Temperature Range: -10°C to 60°C
RoHS3 Compliance

The IQD Frequency Products LFXTAL003277BULK meets all specified electrical, mechanical, and environmental requirements and is classified as a parametric equivalent.

Parameter Comparison

Parameter	830003277B (Würth Elektronik)	LFXTAL003277BULK (IQD Frequency Products)
Frequency	9.8304 MHz	9.8304 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	0.435" L x 0.183" W (11.05mm x 4.65mm)	0.435" L x 0.183" W (11.05mm x 4.65mm)
Height - Seated (Max)	0.530" (13.46mm)	0.530" (13.46mm)
RoHS Status	RoHS3 Compliant	RoHS3 Compliant
Product Status	Active	Active
ECCN	EAR99	EAR99
HTSUS Code	8541.60.0050	8541.60.0050

Engineering Selection Recommendations

Both the Würth Elektronik 830003277B and IQD Frequency Products LFXTAL003277BULK are Active product status components with full RoHS3 compliance and identical electrical and mechanical specifications. Selection between these parts is determined by:

Availability and Lead Time: The LFXTAL003277BULK currently maintains higher inventory levels (1582 Pcs) compared to the 830003277B (998 Pcs), making it suitable for applications requiring immediate fulfillment or large-volume orders.

Regulatory Compliance: Both parts carry EAR99 export classification and are assigned identical HTSUS codes (8541.60.0050). The 830003277B is REACH Unaffected, while the LFXTAL003277BULK is REACH Affected. Applications subject to REACH regulations should verify compliance requirements with the respective manufacturer.

Interchangeability: The parts are direct functional equivalents with no circuit redesign required. PCB layout and schematic integration remain unchanged.

Frequently Asked Questions (FAQ)

Q: Are the 830003277B and LFXTAL003277BULK electrically interchangeable?

A: Yes. Both parts operate at 9.8304 MHz with identical frequency tolerance (±20ppm), frequency stability (±50ppm), load capacitance (30pF), and ESR (50 Ohms). No circuit modifications are required for substitution.

Q: Do these parts have identical physical dimensions?

A: Yes. Both crystals are packaged in HC-49/U configuration with matching dimensions of 0.435" L x 0.183" W (11.05mm x 4.65mm) and maximum seated height of 0.530" (13.46mm). Through-hole mounting compatibility is identical.

Q: What is the operating temperature range for both parts?

A: Both the 830003277B and LFXTAL003277BULK operate across -10°C to 60°C. Applications requiring extended temperature ranges require alternative part selection.

Q: Are both parts RoHS3 compliant?

A: Yes. Both parts meet RoHS3 compliance requirements. However, the LFXTAL003277BULK is REACH Affected while the 830003277B is REACH Unaffected. Verify REACH compliance requirements for your specific application and region.

Q: What is the load capacitance specification, and why is it important?

A: Both parts specify 30pF load capacitance. This parameter must match the oscillator circuit design. Mismatched load capacitance results in frequency deviation outside tolerance specifications.

Q: Can these crystals be used in high-frequency applications?

A: Both parts are specified for fundamental-mode operation at 9.8304 MHz. They are not suitable for overtone or harmonic applications requiring higher frequencies.

Q: What does ESR (Equivalent Series Resistance) mean?

A: ESR is the internal resistance of the crystal at the specified frequency. Both parts specify 50 Ohms ESR, which determines the crystal's impedance characteristics and circuit loading requirements.

Q: Are there any moisture sensitivity considerations?

A: Moisture Sensitivity Level (MSL) is Not Applicable for both parts, indicating standard handling and storage procedures are sufficient.

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