ATECC108-SSHDA-T Equivalent & Substitute Parts

Part Overview

The ATECC108-SSHDA-T is an authentication chip manufactured by Microchip Technology, designed for networking and communications applications. This surface-mount device operates as a CryptoAuthentication™ series component in an 8-SOIC package configuration. The part is currently classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement planning. Substitute parts must maintain identical electrical specifications, package dimensions, and application compatibility while offering active product status and continued manufacturer support.

Substiute Parts

ATECC108-SSHDA-T

Microchip TechnologyIn Stock: 4207ATECC108-SSHDA-T Datasheet

Current PartRFQ

ATECC108A-SSHDA-T

Microchip TechnologyIn Stock: 5207ATECC108A-SSHDA-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATECC108-SSHDA-T is determined by the following critical parameters:

Electrical Compatibility: Both the main part and substitute must belong to the CryptoAuthentication™ series and share the same base product number (ATECC108 family).

Package Compatibility: The 8-SOIC (0.154", 3.90mm Width) package specification must be identical to ensure PCB footprint compatibility and assembly process alignment.

Regulatory Compliance: Both parts must maintain ROHS3 compliance and REACH unaffected status to satisfy environmental and safety requirements.

Application Alignment: Networking and communications application classification must be consistent across substitutes.

Manufacturer Consistency: Microchip Technology remains the sole authorized manufacturer for this component family.

The ATECC108A-SSHDA-T qualifies as a direct substitute based on these parameters. The primary distinction is product status transition from obsolete to active, enabling continued procurement and manufacturer technical support.

Parameter Comparison

Engineering Selection Recommendations

For New Designs: The ATECC108A-SSHDA-T is the appropriate selection. This part maintains active product status with Microchip Technology, ensuring continued availability, technical documentation updates, and manufacturer support. Active status provides long-term supply chain stability for production and field deployment.

For Legacy System Support: The ATECC108-SSHDA-T remains functionally equivalent for existing installations. However, procurement should transition to ATECC108A-SSHDA-T due to obsolete status. Current inventory of 4114 units supports near-term requirements, but future availability cannot be guaranteed.

Compliance Verification: Both parts satisfy ROHS3 and REACH requirements. The MSL rating difference (1 versus 2) reflects manufacturing process evolution and does not affect functional performance. Storage and handling procedures should follow the respective MSL specifications.

Packaging Considerations: The transition from Tape & Reel to Cut Tape & Digi-Reel® packaging does not impact electrical or mechanical compatibility. Assembly processes remain unchanged for both packaging formats.

Frequently Asked Questions (FAQ)

Q: Can ATECC108A-SSHDA-T directly replace ATECC108-SSHDA-T in existing PCB designs?

A: Yes. Both parts share identical package dimensions (8-SOIC, 0.154" × 3.90mm), pin configurations, and electrical specifications. PCB footprints and assembly processes require no modification.

Q: What is the significance of the product status change from obsolete to active?

A: Active status indicates Microchip Technology continues manufacturing, supporting, and distributing the ATECC108A-SSHDA-T. Obsolete status for the original ATECC108-SSHDA-T means production has ended and future availability is limited to existing inventory.

Q: Are there differences in authentication performance between the two parts?

A: Both parts belong to the CryptoAuthentication™ series with identical base product number (ATECC108). Functional authentication capabilities remain consistent across the family.

Q: How does the MSL rating difference affect component handling?

A: MSL 1 (unlimited shelf life) versus MSL 2 (1-year shelf life) reflects moisture sensitivity classifications. Both parts require standard ESD protection and dry storage. MSL 2 requires reflow processing within one year of packaging opening; MSL 1 has no time restriction.

Q: Is the packaging format change from Tape & Reel to Cut Tape & Digi-Reel® significant?

A: No. Both packaging formats contain identical components. The format change affects procurement and handling logistics but not electrical performance or assembly compatibility.

Q: Do regulatory certifications differ between the parts?

A: No. Both parts maintain ROHS3 compliance and REACH unaffected status. HTSUS classification (8542.39.0001) is identical, supporting consistent tariff and trade documentation.