9B-16.384MAAJ-B Crystal Equivalent & Substitute Parts

Part Overview

The 9B-16.384MAAJ-B is a 16.384 MHz through-hole crystal oscillator manufactured by TXC CORPORATION, designed for fundamental mode operation with 18pF load capacitance and 30 Ohms equivalent series resistance. This component operates across the temperature range of -20°C to 70°C and is housed in the HC-49/US package format.

The 9B-16.384MAAJ-B is classified as obsolete. Locating substitute components with compatible electrical and mechanical specifications is necessary to support ongoing system maintenance, repair, and production continuity for legacy equipment utilizing this crystal frequency and package configuration.

Substiute Parts

9B-16.384MAAJ-B

TXC CORPORATIONIn Stock: 8169B-16.384MAAJ-B Datasheet

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9B-16.384MEEJ-B

TXC CORPORATIONIn Stock: 7269B-16.384MEEJ-B Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 9B-16.384MAAJ-B crystal is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 16.384 MHz (exact match required)
• Load Capacitance: 18pF (exact match required)
• ESR: 30 Ohms (exact match required)
• Operating Mode: Fundamental (exact match required)
• Package / Case: HC-49/US (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Temperature Range: -20°C to 70°C (minimum required coverage)

Allowable Variation:

• Frequency Stability: The main part specifies ±30ppm. Substitute parts with equal or tighter (lower) frequency stability values are acceptable, as they represent improved performance within the same application context.

The 9B-16.384MEEJ-B meets all mandatory matching parameters and provides improved frequency stability of ±10ppm, which is tighter than the original ±30ppm specification, making it a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The 9B-16.384MEEJ-B is a direct substitute for the 9B-16.384MAAJ-B. Both components are classified as obsolete products from TXC CORPORATION and share identical electrical and mechanical specifications with the exception of frequency stability.

The substitute part provides improved frequency stability (±10ppm versus ±30ppm), which represents enhanced performance characteristics. Both parts maintain ROHS3 compliance and REACH affected status, ensuring regulatory alignment for applications requiring environmental compliance documentation.

Selection between these parts should be based on application requirements for frequency stability tolerance and current inventory availability. The improved stability of the 9B-16.384MEEJ-B may provide operational advantages in timing-sensitive applications without requiring circuit redesign or re-qualification.

Frequently Asked Questions (FAQ)

Q: Can the 9B-16.384MEEJ-B be used as a direct replacement for the 9B-16.384MAAJ-B?

A: Yes. The 9B-16.384MEEJ-B is a direct substitute. All critical electrical parameters (frequency, load capacitance, ESR, operating mode) and mechanical parameters (package, mounting type, dimensions) are identical. The substitute provides tighter frequency stability (±10ppm versus ±30ppm).

Q: What is the difference between these two crystal parts?

A: The primary difference is frequency stability specification. The 9B-16.384MAAJ-B specifies ±30ppm, while the 9B-16.384MEEJ-B specifies ±10ppm. This represents improved frequency accuracy in the substitute part. All other parameters are equivalent.

Q: Are both parts compatible with the same PCB footprint and circuit design?

A: Yes. Both parts use the HC-49/US package with identical physical dimensions (11.50 x 5.00 x 3.68 mm) and through-hole mounting configuration. No PCB layout modifications are required for substitution.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both the 9B-16.384MAAJ-B and 9B-16.384MEEJ-B are ROHS3 compliant and REACH affected, with identical ECCN classification (EAR99) and HTSUS code (8541.60.0050).

Q: Why is the 9B-16.384MAAJ-B marked as obsolete?

A: The product status reflects TXC CORPORATION's discontinuation of this specific part number. Substitute parts with improved specifications remain available to support legacy equipment maintenance and repair operations.

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

A: Both the 9B-16.384MAAJ-B and 9B-16.384MEEJ-B operate across the identical temperature range of -20°C to 70°C.