SPH0641HT4H-1 Equivalent & Substitute Parts

Part Overview

The SPH0641HT4H-1 is a digital SISONIC microphone manufactured by Knowles. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. The part maintains ROHS3 compliance and carries an MSL rating of 1 (Unlimited), indicating minimal moisture sensitivity constraints during handling and storage.

Substiute Parts

SPH0641HT4H-1

KnowlesIn Stock: 766SPH0641HT4H-1 Datasheet

Current PartRFQ

SPK0641HT4H-1

KnowlesIn Stock: 692SPK0641HT4H-1 Datasheet

SimilarRFQ

SPK0641HT4H-1

KnowlesIn Stock: 692SPK0641HT4H-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SPH0641HT4H-1 is determined by alignment across the following critical parameters:

Manufacturer Consistency: Both the main part and substitute parts are manufactured by Knowles, ensuring design continuity and supply chain reliability.

Compliance Alignment: All substitute parts maintain ROHS3 compliance and identical MSL ratings (1 - Unlimited), confirming compatibility with environmental and handling requirements.

Regulatory Classification: Identical ECCN (EAR99) and HTSUS codes (8518.10.8030) across all parts ensure consistent export control and tariff classification.

Functional Category: All parts are classified as microphones within the Knowles product portfolio, maintaining functional equivalence for digital audio capture applications.

Product Status Consideration: While the main part is obsolete, substitute parts carry active product status, ensuring long-term availability and continued manufacturer support.

Parameter Comparison

Engineering Selection Recommendations

The SPK0641HT4H-1 serves as the direct equivalent substitute for the obsolete SPH0641HT4H-1. Selection of this substitute part is supported by the following engineering criteria:

Compliance Equivalence: Both parts maintain identical ROHS3 compliance status and EAR99 export classification, eliminating regulatory barriers to substitution.

Environmental Compatibility: Matching MSL ratings (1 - Unlimited) confirm that both parts operate under identical moisture sensitivity constraints, requiring no modification to handling or storage protocols.

Manufacturer Continuity: Knowles manufacture of both parts ensures consistent design philosophy, quality standards, and technical support availability.

Active Product Status: The substitute part carries active product status with confirmed inventory availability (681 Pcs), providing supply chain continuity for ongoing procurement requirements.

Tariff and Trade Classification: Identical HTSUS codes ensure consistent customs classification and duty treatment across supply chain operations.

Frequently Asked Questions (FAQ)

Q: Why is the SPH0641HT4H-1 being discontinued?

A: The SPH0641HT4H-1 has reached obsolete status within the Knowles product portfolio. The SPK0641HT4H-1 represents the active equivalent within the current product line.

Q: Are there any compliance differences between the main part and substitute?

A: No. Both parts maintain identical ROHS3 compliance, MSL ratings, ECCN classifications, and HTSUS codes. No compliance modifications are required for substitution.

Q: What is the difference between the part descriptions (SISONIC DIGITAL vs. HF, MEMS)?

A: The descriptions reflect different product naming conventions within the Knowles microphone portfolio. Both parts function as digital microphones and share identical regulatory and environmental specifications.

Q: Does packaging differ between these parts?

A: The main part packaging is not specified in available documentation. The substitute part is supplied in bulk packaging. Packaging requirements should be confirmed with procurement specifications.

Q: Are inventory levels sufficient for both parts?

A: Current inventory shows 697 Pcs of the main part and 681 Pcs of the substitute part in stock. Inventory levels should be verified against project timelines and production requirements.

Q: Can the SPK0641HT4H-1 be used as a direct replacement in existing designs?

A: Substitution is supported by identical compliance, environmental, and regulatory parameters. Design validation should confirm functional compatibility with specific application requirements.