STDCSF6-8M Crystal Equivalent & Substitute Parts

Part Overview

The STDCSF6-8M is an 8 MHz fundamental mode crystal manufactured by NDK America, Inc., designed for surface mount applications in 2-SMD, No Lead packaging. This part operates across the industrial temperature range of -40°C to 85°C with ±30ppm frequency tolerance and 8pF load capacitance. The product is classified as Not For New Designs, making identification of active equivalent alternatives essential for ongoing production and new project implementations.

Substiute Parts

STDCSF6-8M

NDK America, Inc.In Stock: 5624STDCSF6-8M Datasheet

Current PartRFQ

AA-8.000MAGV-T

TXC CORPORATIONIn Stock: 1196AA-8.000MAGV-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the STDCSF6-8M is determined by strict alignment of the following critical parameters:

• Frequency: Must be 8 MHz (exact match required)
• Frequency Tolerance: Must be ±30ppm or tighter
• Load Capacitance: Must be 8pF (exact match required)
• Operating Temperature Range: Must cover -40°C to 85°C minimum
• Package Type: Must be 2-SMD, No Lead
• Mounting Type: Must be Surface Mount

The AA-8.000MAGV-T from TXC CORPORATION meets all substitution criteria. While ESR differs (150 Ohms vs. 200 Ohms), this parameter remains within acceptable operating margins for equivalent crystal functionality in standard applications.

Parameter Comparison

Engineering Selection Recommendations

The AA-8.000MAGV-T qualifies as a direct substitute for the STDCSF6-8M based on matching electrical specifications and package requirements. The TXC part carries Active product status, making it suitable for new designs and ongoing production. The AA-8.000MAGV-T includes AEC-Q200 automotive qualification, providing additional reliability assurance beyond the baseline requirements. The lower ESR value (150 Ohms) in the substitute part represents an improvement in performance characteristics and does not introduce compatibility concerns in standard crystal oscillator circuits.

Frequently Asked Questions (FAQ)

Q: Can the AA-8.000MAGV-T replace the STDCSF6-8M in existing designs?

A: Yes. Both parts share identical frequency (8 MHz), frequency tolerance (±30ppm), load capacitance (8pF), operating temperature range (-40°C to 85°C), and package type (2-SMD, No Lead). The lower ESR of the substitute part does not create compatibility issues.

Q: What is the significance of the different ESR values?

A: The STDCSF6-8M has 200 Ohms ESR while the AA-8.000MAGV-T has 150 Ohms ESR. Lower ESR generally indicates better performance characteristics. Both values are within acceptable ranges for 8 MHz crystal applications and do not affect pin-to-pin compatibility or circuit functionality.

Q: Are there physical dimension differences between these parts?

A: Yes. The STDCSF6-8M measures 0.315" L x 0.177" W (8.00mm x 4.50mm) with 0.079" maximum seated height. The AA-8.000MAGV-T measures 0.197" L x 0.126" W (5.00mm x 3.20mm) with 0.053" maximum seated height. Both use identical 2-SMD, No Lead package type and are surface mount compatible. PCB layout and footprint design must accommodate the smaller substitute part dimensions.

Q: What certifications does the substitute part carry?

A: The AA-8.000MAGV-T carries AEC-Q200 automotive qualification. Both parts are RoHS Compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Why is the STDCSF6-8M marked as Not For New Designs?

A: This designation indicates the part is in mature or end-of-life status. The AA-8.000MAGV-T with Active product status is the recommended choice for new development and production planning.