9B-8.192MEEJ-B Equivalent & Substitute Parts Reference

Part Overview

The 9B-8.192MEEJ-B is an 8.192 MHz through-hole crystal oscillator manufactured by TXC CORPORATION, designed for applications requiring precise frequency generation at 18pF load capacitance with 80 Ohms equivalent series resistance. This component operates in fundamental mode across the temperature range of -20°C to 70°C and is packaged in the HC-49/US form factor.

The 9B-8.192MEEJ-B is classified as obsolete. Substitute components are necessary to maintain design continuity and ensure long-term supply chain reliability for new production runs and legacy system support.

Substiute Parts

9B-8.192MEEJ-B

TXC CORPORATIONIn Stock: 9529B-8.192MEEJ-B Datasheet

Current PartRFQ

ABL-8.192MHZ-B1U-T

Abracon LLCIn Stock: 1136ABL-8.192MHZ-B1U-T Datasheet

SimilarRFQ

ABL-8.192MHZ-B2

Abracon LLCIn Stock: 779ABL-8.192MHZ-B2 Datasheet

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ABL-8.192MHZ-B4Y-T

Abracon LLCIn Stock: 1259ABL-8.192MHZ-B4Y-T Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 9B-8.192MEEJ-B is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 8.192 MHz
• Load Capacitance: 18 pF
• ESR: 80 Ohms
• Operating Mode: Fundamental
• Package / Case: HC-49/US
• Operating Temperature Range: -20°C to 70°C
• Mounting Type: Through Hole

Frequency Stability Tolerance: Substitute parts are grouped based on frequency stability specifications. The original part specifies ±10 ppm stability. Substitutes with equal or tighter stability specifications (±10 ppm or better) are direct equivalents. Substitutes with looser stability specifications (±20 ppm, ±30 ppm, or greater) are classified as functional alternatives suitable only for applications where the relaxed tolerance is acceptable.

Compliance & Regulatory Status: All substitute candidates maintain ROHS3 compliance and EAR99 classification, ensuring regulatory alignment with the original component.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Preferred Substitute):

ABL-8.192MHZ-B1U-T is the primary substitute for the 9B-8.192MEEJ-B. This component maintains identical frequency stability (±10 ppm) and tolerance specifications, ensuring electrical performance equivalence. The Abracon part is currently in active production status, providing assured long-term availability. Physical dimensions are compatible with the original design, with a slightly reduced seated height (3.50 mm versus 3.68 mm), which presents no mechanical constraint for standard through-hole PCB applications. ROHS3 compliance and EAR99 classification align with regulatory requirements. REACH status is unaffected, eliminating potential supply chain restrictions associated with the obsolete TXC component.

Functional Alternatives (Relaxed Tolerance Applications):

ABL-8.192MHZ-B2 and ABL-8.192MHZ-B4Y-T are functional alternatives suitable for applications where frequency stability tolerance can be relaxed beyond ±10 ppm. ABL-8.192MHZ-B2 specifies ±20 ppm frequency tolerance with ±50 ppm stability, appropriate for non-critical timing applications. ABL-8.192MHZ-B4Y-T specifies ±30 ppm frequency tolerance with ±30 ppm stability, suitable for applications with broader frequency acceptance windows. Both alternatives maintain active production status and full regulatory compliance. Selection between these alternatives depends on application-specific frequency tolerance requirements.

Frequently Asked Questions (FAQ)

Q: Can ABL-8.192MHZ-B2 be used as a direct replacement for 9B-8.192MEEJ-B?

A: ABL-8.192MHZ-B2 is a functional alternative, not a direct equivalent. The frequency tolerance specification differs (±20 ppm versus ±10 ppm), and frequency stability is ±50 ppm compared to ±10 ppm. This component is suitable only for applications where the relaxed tolerance specification is acceptable. For applications requiring ±10 ppm performance, ABL-8.192MHZ-B1U-T is the appropriate substitute.

Q: Are there physical compatibility concerns with the Abracon substitutes?

A: All Abracon substitutes (ABL-8.192MHZ-B1U-T, ABL-8.192MHZ-B2, ABL-8.192MHZ-B4Y-T) maintain identical footprint dimensions (11.50 x 5.00 mm) and HC-49/US package specification. The seated height of Abracon parts (3.50 mm maximum) is slightly lower than the original TXC component (3.68 mm maximum). This difference presents no compatibility issue for standard through-hole PCB designs and may provide marginal benefits for space-constrained layouts.

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

A: Frequency tolerance specifies the initial accuracy of the crystal at the time of manufacture, typically measured at 25°C. Frequency stability specifies the maximum frequency deviation over the operating temperature range (-20°C to 70°C). Both parameters are critical for timing-sensitive applications. The 9B-8.192MEEJ-B specifies ±10 ppm for both parameters. ABL-8.192MHZ-B1U-T matches both specifications exactly.

Q: Why is the TXC 9B-8.192MEEJ-B classified as obsolete?

A: The obsolete status indicates that TXC CORPORATION has discontinued production of this component. Abracon LLC substitutes are currently in active production, ensuring supply chain continuity and long-term availability for new designs and legacy system support.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The 9B-8.192MEEJ-B and all three Abracon substitutes (ABL-8.192MHZ-B1U-T, ABL-8.192MHZ-B2, ABL-8.192MHZ-B4Y-T) are ROHS3 compliant. All components are classified as EAR99 for export control purposes.

Q: What is the significance of REACH status differences?

A: The original TXC component is listed as REACH Affected, indicating potential restrictions on certain chemical substances. All Abracon substitutes are REACH Unaffected, eliminating compliance concerns for applications subject to REACH regulations. This represents an advantage of transitioning to active substitute components.