ATECC108A-MXHDA-T Equivalent & Substitute Parts

Part Overview

The ATECC108A-MXHDA-T is an authentication chip manufactured by Microchip Technology, part of the CryptoAuthentication™ series. This surface-mount device is housed in an 8-UFDFN (2x3) package with exposed pad and is designed for networking and communications applications. The part maintains Active product status and has 653 units in current inventory stock.

Substitute parts are necessary when the original 8-UFDFN package configuration is unavailable, when alternative packaging formats better suit manufacturing processes, or when compliance requirements differ between procurement sources.

Substiute Parts

ATECC108A-MXHDA-T

Microchip TechnologyIn Stock: 733ATECC108A-MXHDA-T Datasheet

Current PartRFQ

ATECC108A-SSHDA-T

Microchip TechnologyIn Stock: 5207ATECC108A-SSHDA-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The ATECC108A-MXHDA-T can be substituted with ATECC108A-SSHDA-T based on the following criteria:

Qualifying Parameters for Substitution:

• Identical manufacturer: Microchip Technology
• Identical base product number: ATECC108
• Identical series: CryptoAuthentication™
• Identical device type: Authentication Chip
• Identical application domain: Networking and Communications
• Identical mounting type: Surface Mount
• Both devices maintain Active product status
• Both devices carry REACH Unaffected status

Differentiating Parameters:

• Package format: 8-UFDFN (2x3) versus 8-SOIC (0.154", 3.90mm Width)
• Packaging delivery: Digi-Reel® and Cut Tape (CT) availability
• RoHS compliance: Non-compliant versus ROHS3 Compliant
• Moisture Sensitivity Level: MSL 3 (168 Hours) versus MSL 2 (1 Year)
• ECCN classification: EAR99 versus 5A992C
• HTSUS code: 8542.32.0051 versus 8542.39.0001

Parameter Comparison

Engineering Selection Recommendations

ATECC108A-MXHDA-T Selection Criteria:

• Required when 8-UFDFN (2x3) package footprint is specified in PCB design
• Suitable for applications where RoHS non-compliance is acceptable
• Appropriate for controlled storage environments with MSL 3 handling protocols

ATECC108A-SSHDA-T Selection Criteria:

• Required when 8-SOIC package footprint is specified in PCB design
• Mandatory for applications requiring ROHS3 compliance
• Preferred for extended storage periods due to MSL 2 (1 Year) rating
• Recommended when higher inventory availability is required (5100 units versus 653 units)
• Suitable for applications with less stringent moisture sensitivity constraints

Both parts maintain Active product status and REACH Unaffected classification, ensuring regulatory continuity across substitution.

Frequently Asked Questions (FAQ)

Q: Can ATECC108A-SSHDA-T replace ATECC108A-MXHDA-T in existing designs?

A: Functional replacement is possible only if the PCB layout accommodates the 8-SOIC package footprint instead of the 8-UFDFN (2x3) footprint. The devices share identical authentication functionality and application domain but require different land pattern geometries.

Q: What is the impact of RoHS compliance differences?

A: ATECC108A-MXHDA-T is RoHS non-compliant, while ATECC108A-SSHDA-T is ROHS3 compliant. Selection depends on end-product regulatory requirements and supply chain compliance mandates.

Q: How do Moisture Sensitivity Levels affect handling?

A: ATECC108A-MXHDA-T requires MSL 3 handling (168-hour floor life after moisture exposure), while ATECC108A-SSHDA-T allows MSL 2 handling (1-year floor life). MSL 2 provides extended shelf life and reduced reflow processing constraints.

Q: Are there electrical or functional differences between these parts?

A: Both devices share the ATECC108 base product number and CryptoAuthentication™ series designation, indicating identical electrical specifications and authentication functionality. Differences are limited to package format, compliance certifications, and moisture sensitivity ratings.

Q: Which part should be selected for new designs?

A: Selection is determined by PCB footprint requirements and compliance specifications. If no existing design constraints exist, ATECC108A-SSHDA-T offers advantages in ROHS3 compliance, extended moisture tolerance, and higher inventory availability.