14.7456 MHz Crystal 18pF SMD Equivalent & Substitute Parts (9C14700003)

Part Overview

The TXC CORPORATION 9C14700003 is a 14.7456 MHz crystal oscillator with 18pF load capacitance, 30 Ohms ESR, and HC-49/US surface mount packaging. This component is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this frequency standard.

Substiute Parts

9C14700003

TXC CORPORATIONIn Stock: 8919C14700003 Datasheet

Current PartRFQ

ABL-14.7456MHZ-B4Y-T

Abracon LLCIn Stock: 2028ABL-14.7456MHZ-B4Y-T Datasheet

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ABLS2-14.7456MHZ-B4Y-T

Abracon LLCIn Stock: 1113ABLS2-14.7456MHZ-B4Y-T Datasheet

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LP147F33CDT

CTS-Frequency ControlsIn Stock: 926LP147F33CDT Datasheet

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LP147F33CET

CTS-Frequency ControlsIn Stock: 861LP147F33CET Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 9C14700003 is determined by the following critical parameters:

Primary Matching Criteria:

• Frequency: 14.7456 MHz (exact match required)
• Frequency Stability: ±30ppm (exact match required)
• Load Capacitance: 18pF (exact match required)
• Package / Case: HC-49/US (exact match required)
• Operating Temperature Range: -20°C ~ 70°C (exact match required)

Secondary Compatibility Parameters:

• ESR (Equivalent Series Resistance): 30 Ohms nominal; substitutes with higher ESR values (40 Ohms, 50 Ohms) remain functionally compatible within circuit design tolerances
• Mounting Type: Surface Mount (primary requirement); through-hole variants listed for reference only
• RoHS Compliance: ROHS3 Compliant (maintained across all substitutes)

Substitute parts meeting all primary criteria are classified as direct equivalents. Parts with variations in load capacitance or ESR require circuit-level verification but remain within the HC-49/US platform compatibility.

Parameter Comparison

Engineering Selection Recommendations

Direct Surface Mount Equivalents (18pF Load Capacitance):

The ABLS2-14.7456MHZ-B4Y-T (Abracon LLC) and LP147F33CDT (CTS-Frequency Controls) are the primary surface mount substitutes. Both maintain 18pF load capacitance, matching the original 9C14700003 specification. The ABLS2 variant features 50 Ohms ESR, while the LP147F33CDT provides 40 Ohms ESR. Both manufacturers maintain active product status with ROHS3 compliance and HC-49/US packaging.

Load Capacitance Variation:

The LP147F33CET (CTS-Frequency Controls) operates at 20pF load capacitance instead of 18pF. This part remains within the HC-49/US platform and maintains all other critical parameters. Selection of this variant requires circuit-level analysis to confirm compatibility with the application's oscillator loading network.

Through-Hole Alternative:

The ABL-14.7456MHZ-B4Y-T (Abracon LLC) provides a through-hole mounting option with identical electrical specifications to the ABLS2 surface mount variant. This part is applicable only for designs requiring through-hole assembly or legacy board layouts.

Compliance and Availability:

All substitute parts maintain ROHS3 compliance and EAR99 export classification. Abracon LLC and CTS-Frequency Controls parts are classified as active products, ensuring long-term supply chain availability compared to the obsolete 9C14700003.

Frequently Asked Questions (FAQ)

Q: Can the ABLS2-14.7456MHZ-B4Y-T directly replace the 9C14700003 in existing designs?

A: Yes. The ABLS2 variant matches all primary parameters: 14.7456 MHz frequency, ±30ppm stability, 18pF load capacitance, HC-49/US package, and surface mount configuration. The 50 Ohms ESR (versus 30 Ohms original) is within acceptable tolerance for most oscillator circuit designs.

Q: What is the difference between the LP147F33CDT and LP147F33CET?

A: Both are CTS-Frequency Controls parts with identical frequency, stability, and ESR specifications. The primary difference is load capacitance: LP147F33CDT operates at 18pF (matching the original), while LP147F33CET operates at 20pF. Selection depends on circuit design requirements.

Q: Why is the ABL-14.7456MHZ-B4Y-T listed if it is through-hole?

A: The ABL variant is included for reference in applications requiring through-hole assembly or legacy board redesigns. For surface mount applications, the ABLS2 surface mount variant is the appropriate selection.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the original 9C14700003 specification.

Q: What does MSL rating mean for crystal selection?

A: MSL (Moisture Sensitivity Level) indicates moisture exposure limits during storage and handling. The original 9C14700003 and CTS parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Abracon parts carry "Not Applicable" designation, indicating no moisture sensitivity concern for these through-hole and surface mount variants.

Q: Can I use a substitute with higher ESR without circuit modification?

A: ESR variations (30 Ohms to 50 Ohms) typically remain compatible within standard oscillator circuit designs. However, circuits with tight ESR specifications or high-impedance loading networks may require analysis. Consult application-specific oscillator circuit documentation.