9B-11.2896MEEJ-B Equivalent & Substitute Parts

Part Overview

The 9B-11.2896MEEJ-B is a through-hole MHz crystal manufactured by TXC CORPORATION, operating at 11.2896 MHz with a frequency stability of ±10ppm and 18pF load capacitance. This component is classified as obsolete product status. Due to its obsolete designation, identifying equivalent substitute parts with compatible electrical and mechanical specifications is essential for design continuity and procurement planning.

Substiute Parts

9B-11.2896MEEJ-B

TXC CORPORATIONIn Stock: 19329B-11.2896MEEJ-B Datasheet

Current PartRFQ

9B-11.2896MAAJ-B

TXC CORPORATIONIn Stock: 13749B-11.2896MAAJ-B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 9B-11.2896MEEJ-B is determined by the following critical parameters:

Mandatory Matching Parameters:

• Frequency: 11.2896 MHz (exact match required)
• Load Capacitance: 18pF (exact match required)
• ESR: 40 Ohms (exact match required)
• Package / Case: HC-49/US (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Mode: Fundamental (exact match required)

Allowable Variation Parameters:

• Frequency Stability: ±10ppm to ±30ppm (wider tolerance acceptable for less stringent applications)
• Operating Temperature Range: -20°C ~ 70°C (identical across all parts in this group)

The 9B-11.2896MAAJ-B qualifies as a substitute part because it maintains identical electrical and mechanical specifications with the exception of frequency stability tolerance, which is relaxed to ±30ppm compared to the main part's ±10ppm specification.

Parameter Comparison

Engineering Selection Recommendations

Both the 9B-11.2896MEEJ-B and 9B-11.2896MAAJ-B are classified as obsolete products. Selection between these parts should be based on the following criteria:

Select 9B-11.2896MEEJ-B when:

• Application requires frequency stability of ±10ppm or tighter
• Design specifications mandate the higher precision tolerance
• Current inventory availability supports procurement

Select 9B-11.2896MAAJ-B when:

• Application tolerates frequency stability of ±30ppm
• Frequency stability of ±30ppm meets system requirements
• Procurement availability or cost considerations favor this option
• Design allows for the relaxed tolerance specification

Both parts maintain identical mechanical compatibility, package dimensions, and compliance certifications (ROHS3 Compliant, REACH Affected). The primary differentiation factor is frequency stability tolerance. Substitution is electrically and mechanically valid when the application's frequency stability requirement does not exceed ±30ppm.

Frequently Asked Questions (FAQ)

Q: Can the 9B-11.2896MAAJ-B directly replace the 9B-11.2896MEEJ-B in existing designs?

A: Direct mechanical and electrical substitution is valid provided the application's frequency stability requirement does not exceed ±30ppm. The substitute part has identical load capacitance, ESR, package dimensions, and mounting characteristics. The only difference is the relaxed frequency stability tolerance.

Q: What is the significance of the frequency stability difference between ±10ppm and ±30ppm?

A: Frequency stability tolerance defines the maximum allowable deviation from the nominal 11.2896 MHz frequency across the operating temperature range and over time. The 9B-11.2896MEEJ-B maintains tighter tolerance (±10ppm), while the 9B-11.2896MAAJ-B allows wider deviation (±30ppm). Applications with stringent frequency accuracy requirements must use the ±10ppm part.

Q: Are both parts physically identical in terms of PCB footprint and mounting?

A: Yes. Both parts share identical HC-49/US package specifications, dimensions (0.453" L x 0.197" W / 11.50mm x 5.00mm), seated height (0.145" / 3.68mm), and through-hole mounting type. No PCB layout modifications are required for substitution.

Q: What compliance certifications apply to both substitute parts?

A: Both the 9B-11.2896MEEJ-B and 9B-11.2896MAAJ-B are ROHS3 Compliant and REACH Affected. Compliance status is identical across both parts.

Q: Why are both parts listed as obsolete?

A: Both components carry obsolete product status designation from TXC CORPORATION. This classification indicates these parts are no longer in active production. Procurement should prioritize available inventory from authorized distributors.

Q: Can these parts be used interchangeably in all applications?

A: Interchangeability is conditional on the application's frequency stability requirement. If the design specification permits ±30ppm tolerance, the parts are fully interchangeable. If the design requires ±10ppm or tighter tolerance, only the 9B-11.2896MEEJ-B is suitable.