9B-8.000MAGS-B Equivalent & Substitute Parts

Part Overview

The 9B-8.000MAGS-B is an 8 MHz through-hole crystal oscillator manufactured by TXC CORPORATION. This component operates at a fundamental frequency with a load capacitance of 30pF and an equivalent series resistance of 80 Ohms, housed in an HC-49/US package. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts must maintain electrical compatibility across frequency, load capacitance, temperature range, and mechanical form factor specifications.

Substiute Parts

9B-8.000MAGS-B

TXC CORPORATIONIn Stock: 9999B-8.000MAGS-B Datasheet

Current PartRFQ

ATS080C-E

CTS-Frequency ControlsIn Stock: 1733ATS080C-E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 9B-8.000MAGS-B is determined by the following critical parameters:

Frequency Matching: The substitute part must operate at 8.0000 MHz with identical frequency tolerance of ±30ppm and frequency stability of ±50ppm.

Load Capacitance Compatibility: The substitute part load capacitance must be compatible with the circuit design. The 9B-8.000MAGS-B specifies 30pF load capacitance; substitute parts with load capacitance within the range of 30pF to 32pF are acceptable for circuits designed to accommodate this variation.

Electrical Characteristics: The substitute part must operate in fundamental mode with an operating temperature range of -40°C to 85°C.

Mechanical Form Factor: The substitute part must use the HC-49/US package with through-hole mounting to ensure physical compatibility with existing PCB layouts.

Compliance Requirements: The substitute part must maintain ROHS3 compliance and EAR99 export classification.

The ATS080C-E meets all substitution criteria with the exception of load capacitance, which is specified at 32pF rather than 30pF. This 2pF difference is within acceptable tolerance for most circuit applications designed for the 9B-8.000MAGS-B.

Parameter Comparison

Engineering Selection Recommendations

The ATS080C-E is an active substitute for the obsolete 9B-8.000MAGS-B. Both parts share identical frequency specifications, operating temperature range, mounting type, and package form factor. Both components maintain ROHS3 compliance and EAR99 export classification.

The ATS080C-E differs from the main part in three parameters: load capacitance (32pF versus 30pF), ESR (60 Ohms versus 80 Ohms), and product status (Active versus Obsolete). The lower ESR of the ATS080C-E may result in improved oscillator startup characteristics and reduced power consumption in the circuit. The 2pF increase in load capacitance is within typical circuit design tolerances for 8 MHz crystal applications.

Selection of the ATS080C-E is appropriate for applications requiring an active, currently manufactured component with equivalent electrical performance and identical mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the ATS080C-E directly replace the 9B-8.000MAGS-B in existing designs?

A: The ATS080C-E is mechanically and electrically compatible with the 9B-8.000MAGS-B for most applications. Both parts use the HC-49/US package, operate at 8.0000 MHz with ±30ppm tolerance, and function across the -40°C to 85°C temperature range. The 2pF difference in load capacitance (32pF versus 30pF) and the lower ESR (60 Ohms versus 80 Ohms) are within acceptable parameters for standard 8 MHz crystal oscillator circuits.

Q: What is the significance of the load capacitance difference between these parts?

A: Load capacitance specifies the capacitive load at which the crystal operates at its specified frequency. The 9B-8.000MAGS-B is specified for 30pF load capacitance, while the ATS080C-E is specified for 32pF. This 2pF difference is typical in crystal manufacturing and does not prevent substitution in circuits designed for either specification. The circuit's load capacitance network should accommodate this variation.

Q: Why is the ESR lower on the ATS080C-E?

A: Equivalent series resistance (ESR) is an inherent characteristic of crystal design and manufacturing. The ATS080C-E has an ESR of 60 Ohms compared to 80 Ohms for the 9B-8.000MAGS-B. Lower ESR generally results in faster oscillator startup and reduced power consumption. This difference does not prevent substitution and may provide performance benefits in the receiving circuit.

Q: Are both parts RoHS compliant?

A: Yes. Both the 9B-8.000MAGS-B and ATS080C-E are ROHS3 compliant and meet current environmental and regulatory requirements for electronic components.

Q: What is the package form factor for both parts?

A: Both parts use the HC-49/US package with through-hole mounting. This ensures mechanical compatibility with existing PCB layouts designed for the 9B-8.000MAGS-B.

Q: Why is the 9B-8.000MAGS-B classified as obsolete?

A: Product status reflects manufacturer production and support status. The obsolete classification indicates that TXC CORPORATION has discontinued production of the 9B-8.000MAGS-B. The ATS080C-E, classified as active, is currently manufactured by CTS-Frequency Controls and available for new designs and ongoing production.