Equivalent & Substitute Parts for 9B-16.000MEEJ-B

Part Overview

The 9B-16.000MEEJ-B is a 16 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 is classified as obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications. The substitute part identified maintains electrical and mechanical compatibility within the specified parameter tolerances.

Substiute Parts

9B-16.000MEEJ-B

TXC CORPORATIONIn Stock: 11399B-16.000MEEJ-B Datasheet

Current PartRFQ

ECS-160-18-4X-CKM

ECS Inc.In Stock: 2957ECS-160-18-4X-CKM Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the 9B-16.000MEEJ-B is determined by the following critical parameters:

Frequency Match: The substitute part must operate at 16.0000 MHz with identical frequency stability of ±10ppm to maintain circuit timing specifications.

Load Capacitance Compatibility: Both parts specify 18pF load capacitance, ensuring the oscillator circuit design remains unchanged.

Package and Mounting: Both parts use HC-49/US package with through-hole mounting, providing mechanical and electrical interface compatibility with existing PCB designs.

Operating Mode: Both parts operate in fundamental mode, confirming identical frequency generation methodology.

Operating Temperature Range: Both parts support the -20°C to 70°C temperature range, ensuring thermal compatibility across specified operating conditions.

Regulatory Compliance: Both parts maintain ROHS3 compliance and EAR99 ECCN classification, satisfying regulatory requirements.

The substitute part ECS-160-18-4X-CKM meets all critical substitution criteria. The ESR difference (40 Ohms versus 30 Ohms) and minor dimensional variations fall within acceptable tolerance ranges for through-hole crystal oscillators in this category.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: ECS-160-18-4X-CKM is the qualified equivalent for 9B-16.000MEEJ-B applications.

Justification Based on Provided Parameters:

The ECS-160-18-4X-CKM maintains all critical electrical parameters: identical 16 MHz frequency, ±10ppm stability, 18pF load capacitance, and fundamental operating mode. Physical compatibility is confirmed through HC-49/US package specification and through-hole mounting type. Both components support the -20°C to 70°C operating temperature range.

Compliance Status: The substitute part holds active product status from ECS Inc., ensuring ongoing availability and supply chain continuity. Both components satisfy ROHS3 compliance requirements and carry EAR99 ECCN classification, maintaining regulatory alignment with the original part.

ESR Consideration: The substitute part specifies 40 Ohms ESR compared to the original 30 Ohms. This 10 Ohm difference remains within acceptable operating parameters for HC-49/US crystal oscillators and does not alter circuit functionality when used with standard oscillator driver circuits.

Dimensional Tolerance: Minor dimensional variations (11.35mm vs 11.50mm length; 4.65mm vs 5.00mm width; 3.50mm vs 3.68mm height) fall within standard mechanical tolerances for through-hole crystal packages and present no PCB layout or assembly complications.

Frequently Asked Questions (FAQ)

Q: Can ECS-160-18-4X-CKM be used as a direct replacement for 9B-16.000MEEJ-B?

A: Yes. Both parts share identical frequency (16 MHz), frequency stability (±10ppm), load capacitance (18pF), operating mode (fundamental), package type (HC-49/US), and mounting method (through-hole). The parts are electrically and mechanically compatible for direct substitution in existing circuit designs.

Q: What is the significance of the ESR difference between the two parts?

A: The original part specifies 30 Ohms ESR while the substitute specifies 40 Ohms ESR. This 10 Ohm difference affects oscillator startup characteristics but remains within normal operating parameters for HC-49/US crystal oscillators. Standard oscillator driver circuits accommodate this ESR range without circuit modification.

Q: Are there any dimensional compatibility issues?

A: Minor dimensional differences exist: the substitute is slightly smaller in length (11.35mm vs 11.50mm), width (4.65mm vs 5.00mm), and height (3.50mm vs 3.68mm). These variations fall within standard mechanical tolerances for HC-49/US packages and present no PCB footprint or assembly concerns.

Q: Why is the original part listed as obsolete?

A: The 9B-16.000MEEJ-B is classified as obsolete by TXC CORPORATION. The ECS-160-18-4X-CKM maintains active product status, ensuring continued availability, technical support, and supply chain reliability for new designs and production requirements.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both components are ROHS3 compliant and carry EAR99 ECCN classification. Both share the same HTSUS code (8541.60.0050), confirming equivalent regulatory and trade classification status.

Q: What is the operating temperature compatibility?

A: Both parts support identical operating temperature range of -20°C to 70°C, ensuring thermal compatibility across all specified environmental conditions.

Q: Are there any moisture sensitivity differences?

A: The original part lists MSL as Not Applicable. The substitute specifies MSL 1 (Unlimited), indicating superior moisture resistance characteristics. This represents an improvement in handling and storage requirements.