ATECC108-SSHDA-B Equivalent & Substitute Parts

Part Overview

The ATECC108-SSHDA-B is an authentication chip manufactured by Microchip Technology, designed for networking and communications applications. This component is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing design requirements and procurement planning. The part operates as a surface-mount authentication IC in an 8-SOIC package configuration.

Substiute Parts

ATECC108-SSHDA-B

Microchip TechnologyIn Stock: 1002ATECC108-SSHDA-B Datasheet

Current PartRFQ

ATECC108A-SSHDA-B

Microchip TechnologyIn Stock: 3135ATECC108A-SSHDA-B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATECC108-SSHDA-B is determined by the following critical parameters:

Electrical Compatibility: Both parts belong to the CryptoAuthentication™ series and share the same base product number (ATECC108), ensuring functional equivalence for authentication operations in networking and communications applications.

Mechanical Compatibility: Identical package configuration (8-SOIC with 0.154" width, 3.90mm) and surface-mount mounting type enable direct PCB-level replacement without layout modifications.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying environmental and regulatory requirements.

Substitution Logic: The ATECC108A-SSHDA-B represents the active production equivalent of the obsolete ATECC108-SSHDA-B, with maintained electrical and mechanical specifications across the CryptoAuthentication™ platform.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: The ATECC108A-SSHDA-B is the designated substitute for the obsolete ATECC108-SSHDA-B. This part maintains active production status with Microchip Technology, ensuring long-term availability and supply chain continuity.

Compliance Basis: Both parts satisfy ROHS3 and REACH requirements, supporting deployment in regulated markets and applications with environmental compliance mandates.

Availability Consideration: The ATECC108A-SSHDA-B is available in higher inventory quantities (3100 Pcs) compared to the obsolete main part (913 Pcs), supporting production scaling and procurement planning.

Moisture Sensitivity: The substitute part carries MSL 2 (1 Year) versus MSL 1 (Unlimited) for the main part. This difference requires adherence to standard moisture control procedures during storage and handling, consistent with industry practices for MSL 2 components.

Frequently Asked Questions (FAQ)

Q: Can the ATECC108A-SSHDA-B directly replace the ATECC108-SSHDA-B in existing designs?

A: Yes. Both parts share identical package configuration (8-SOIC), mounting type (surface mount), and functional classification (authentication chip). PCB layout and assembly processes require no modification.

Q: What is the difference between MSL 1 and MSL 2 ratings?

A: MSL 1 indicates unlimited shelf life without moisture control requirements. MSL 2 requires storage in controlled humidity conditions with a 1-year floor life limit. Standard moisture barrier packaging and desiccant storage satisfy MSL 2 requirements.

Q: Are there electrical performance differences between these parts?

A: Both parts operate within the CryptoAuthentication™ series and share the same base product number (ATECC108). Electrical specifications for authentication operations remain equivalent.

Q: Why is the main part listed as obsolete?

A: The ATECC108-SSHDA-B has been superseded by the ATECC108A-SSHDA-B in Microchip Technology's product portfolio. The substitute part represents the current active production equivalent.

Q: What packaging options are available?

A: The substitute part (ATECC108A-SSHDA-B) is supplied in tube packaging. Standard tube quantities support both prototype and production-volume procurement.