CS08673-48M 48 MHz Crystal Equivalent & Substitute Parts

Part Overview

The CS08673-48M is a 48 MHz surface mount crystal manufactured by NDK America, Inc., designed for fundamental mode operation in SMD applications. This Active product is specified with 10pF load capacitance, 50 Ohms ESR, and operates across the industrial temperature range of -40°C to 125°C. The part is packaged in a 4-SMD, No Lead configuration measuring 2.00mm × 1.60mm with AEC-Q200 rating and RoHS compliance. Substitute parts are identified when frequency, package type, mounting configuration, and physical dimensions remain constant while secondary electrical parameters vary within acceptable design tolerances.

Substiute Parts

CS08673-48M

NDK America, Inc.In Stock: 3876CS08673-48M Datasheet

Current PartRFQ

CS05517-48M

NDK America, Inc.In Stock: 40984CS05517-48M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CS08673-48M is determined by the following fixed parameters that must remain constant:

Frequency: 48 MHz (exact match required) Package / Case: 4-SMD, No Lead (identical form factor) Size / Dimension: 2.00mm × 1.60mm (identical physical footprint) Mounting Type: Surface Mount (identical assembly method) Operating Mode: Fundamental (identical oscillation mode) Manufacturer: NDK America, Inc. (same manufacturer, NX2016SA series)

The CS05517-48M qualifies as a substitute part because it maintains all fixed parameters listed above. Secondary electrical parameters including load capacitance, ESR, frequency stability, frequency tolerance, and maximum operating temperature may vary within design specifications while preserving functional compatibility in applications where the primary frequency and package requirements are met.

Parameter Comparison

Engineering Selection Recommendations

Both CS08673-48M and CS05517-48M are Active products manufactured by NDK America, Inc., with RoHS compliance and MSL 1 rating. Selection between these parts depends on application-specific requirements for load capacitance and operating temperature range.

The CS08673-48M is specified for 10pF load capacitance with 50 Ohms ESR and supports operation to 125°C maximum temperature. This configuration is suitable for applications requiring higher temperature performance or specific load capacitance matching to circuit design parameters.

The CS05517-48M is specified for 7pF load capacitance with 40 Ohms ESR and supports operation to 105°C maximum temperature. This configuration provides lower ESR and is suitable for applications where reduced series resistance is beneficial or where maximum operating temperature does not exceed 105°C.

Both parts maintain identical frequency, package, physical dimensions, and mounting characteristics, ensuring PCB layout and assembly compatibility.

Frequently Asked Questions (FAQ)

Q: Can CS05517-48M replace CS08673-48M in any application?

A: Substitution is valid when the application circuit is designed for 7pF load capacitance and does not require operation above 105°C. The identical frequency, package, and physical dimensions ensure mechanical and electrical compatibility at the PCB level. Circuit-level compatibility depends on load capacitance matching and temperature range requirements.

Q: What is the impact of different load capacitance values?

A: Load capacitance affects the oscillation frequency and circuit tuning. CS08673-48M specifies 10pF load capacitance while CS05517-48M specifies 7pF. The crystal must be matched to the load capacitance of the oscillator circuit. Mismatched load capacitance can result in frequency deviation or circuit instability.

Q: Are there temperature range limitations when substituting?

A: CS08673-48M operates to -40°C ~ 125°C while CS05517-48M operates to -40°C ~ 105°C. If the application requires operation above 105°C, CS05517-48M is not suitable. For applications with maximum temperature at or below 105°C, both parts are compatible.

Q: Do the different ESR values affect circuit performance?

A: ESR (Equivalent Series Resistance) affects crystal impedance and power consumption. CS08673-48M specifies 50 Ohms ESR while CS05517-48M specifies 40 Ohms ESR. Lower ESR in CS05517-48M reduces power dissipation and may improve circuit stability in some applications. Circuit design determines whether this difference is significant.

Q: Are both parts available in the same packaging format?

A: Yes. Both CS08673-48M and CS05517-48M are packaged in 4-SMD, No Lead configuration with identical physical dimensions of 2.00mm × 1.60mm and maximum seated height of 0.50mm. PCB footprints and assembly processes are identical.