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830003218B Equivalent & Substitute Parts
Part Overview
The Würth Elektronik 830003218B is a 14.7456 MHz quartz crystal oscillator in HC-49/U package configuration. This through-hole mounted crystal is designed for fundamental mode operation with a load capacitance of 30pF and equivalent series resistance of 35 Ohms. The component is classified as Active product status and is RoHS3 compliant. Equivalent substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across manufacturers, enabling procurement flexibility and supply chain continuity.
Substiute Parts
Key Parameters
| Parameter | Specification |
|---|---|
| Frequency | 14.7456 MHz |
| Frequency Tolerance | ±20ppm |
| Frequency Stability | ±30ppm |
| Load Capacitance | 30pF |
| ESR (Equivalent Series Resistance) | 35 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 830003218B is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must match the following criteria:
- Frequency: 14.7456 MHz (exact match required)
- Frequency Tolerance: ±20ppm (exact match required)
- Frequency Stability: ±30ppm (exact match required)
- Load Capacitance: 30pF (exact match required)
- ESR: 35 Ohms (exact match required)
- Operating Mode: Fundamental (exact match required)
- Operating Temperature Range: -10°C to 60°C (exact match required)
- Package / Case: HC-49/U (exact match required)
- Mounting Type: Through Hole (exact match required)
- Physical Dimensions: 0.435" L x 0.183" W; Height 0.530" max (exact match required)
Parameter Comparison
| Parameter | 830003218B (Würth Elektronik) | LFXTAL003218BULK (IQD Frequency Products) |
|---|---|---|
| Manufacturer Part Number | 830003218B | LFXTAL003218BULK |
| Manufacturer | Würth Elektronik | IQD Frequency Products |
| Frequency | 14.7456 MHz | 14.7456 MHz |
| Frequency Tolerance | ±20ppm | ±20ppm |
| Frequency Stability | ±30ppm | ±30ppm |
| Load Capacitance | 30pF | 30pF |
| ESR (Equivalent Series Resistance) | 35 Ohms | 35 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) |
| Series | HC49 | HC49 |
| Product Status | Active | Active |
| RoHS Status | RoHS3 Compliant | RoHS3 Compliant |
| Packaging | Bulk | Bulk |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8541.60.0050 | 8541.60.0050 |
Engineering Selection Recommendations
The LFXTAL003218BULK manufactured by IQD Frequency Products is a parametric equivalent substitute for the 830003218B. Both components are Active product status and maintain identical electrical and mechanical specifications across all critical parameters. Both parts are RoHS3 compliant and classified under the same ECCN and HTSUS codes.
Selection between the 830003218B and LFXTAL003218BULK is determined by availability, procurement lead time, and supply chain requirements. The IQD Frequency Products variant currently maintains higher inventory availability at 909 pieces compared to 803 pieces for the Würth Elektronik original. Both components are suitable for direct substitution in applications requiring 14.7456 MHz fundamental mode crystal oscillators with 30pF load capacitance and 35 Ohm ESR in HC-49/U through-hole package configuration.
Frequently Asked Questions (FAQ)
Q: Can the LFXTAL003218BULK be used as a direct replacement for the 830003218B?
A: Yes. The LFXTAL003218BULK is a parametric equivalent with identical frequency, tolerance, stability, load capacitance, ESR, operating mode, temperature range, package type, and physical dimensions. Direct substitution is supported without circuit modification.
Q: Are there any differences in compliance or certification between these parts?
A: Both parts are RoHS3 compliant and carry the same ECCN (EAR99) and HTSUS (8541.60.0050) classifications. The primary difference is REACH status: the 830003218B is REACH Unaffected while the LFXTAL003218BULK is REACH Affected. Verify REACH compliance requirements for your specific application and end-use region.
Q: What are the critical parameters that must match for substitution?
A: Frequency (14.7456 MHz), frequency tolerance (±20ppm), frequency stability (±30ppm), load capacitance (30pF), ESR (35 Ohms), operating mode (Fundamental), operating temperature range (-10°C to 60°C), package type (HC-49/U), mounting type (Through Hole), and physical dimensions (0.435" L x 0.183" W, height 0.530" max) must all match exactly.
Q: Are both parts suitable for through-hole PCB assembly?
A: Yes. Both the 830003218B and LFXTAL003218BULK are through-hole mounted components in HC-49/U package configuration with identical physical dimensions and seating height specifications.
Q: What is the load capacitance specification and why is it important?
A: Both parts specify 30pF load capacitance. This parameter defines the capacitive load at which the crystal frequency is calibrated and must match the circuit design. Mismatched load capacitance results in frequency deviation outside tolerance specifications.
Q: Can these crystals operate outside the -10°C to 60°C temperature range?
A: No. Both parts are specified for operation within -10°C to 60°C. Operation outside this range is not supported and may result in frequency instability or component failure.
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