ELFH1221G Equivalent & Substitute Parts Reference

Part Overview

The ELFH1221G is a .200"/5.08MM right-angle header terminal block manufactured by Amphenol PCD. This component is classified as a position terminal block and is currently in active product status with 880 pieces available in new original inventory. Terminal blocks of this specification are essential in applications requiring reliable electrical interconnection with standardized pitch spacing and right-angle orientation for PCB mounting. Substitute parts are identified when equivalent functional performance can be achieved through components sharing critical electrical and mechanical parameters while maintaining compatibility with the intended application.

Substiute Parts

ELFH1221G

Amphenol PCDIn Stock: 943ELFH1221G Datasheet

Current PartRFQ

1-796638-2

TE Connectivity AMP ConnectorsIn Stock: 15791-796638-2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELFH1221G is determined by alignment across the following critical parameters:

Pitch Specification: 0.200" (5.08mm) spacing is the primary mechanical compatibility criterion. Components must maintain this exact pitch to ensure proper mating with corresponding receptacles and PCB layouts.

Header Orientation: Right-angle (90°) configuration is required for through-hole PCB mounting applications where the terminal block connects perpendicular to the board surface.

Connector Category: Terminal block headers with shrouded or closed-end design provide equivalent electrical isolation and mechanical protection.

Regulatory Compliance: RoHS compliance and MSL rating of 1 (Unlimited) ensure compatibility with modern manufacturing and storage requirements.

Packaging Format: Bulk packaging maintains consistency with standard component distribution methods.

The identified substitute part 1-796638-2 (TE Connectivity AMP Connectors) meets these critical parameters and is therefore classified as an equivalent alternative.

Parameter Comparison

Engineering Selection Recommendations

Both the ELFH1221G and 1-796638-2 maintain active product status with current manufacturer support. The ELFH1221G is RoHS Compliant, while the 1-796638-2 carries ROHS3 Compliant certification, indicating enhanced compliance with current regulatory standards. Both components share identical MSL ratings (1 - Unlimited) and ECCN classification (EAR99), confirming equivalent handling and export compliance requirements.

Selection between these components should be based on:

Availability: ELFH1221G has 880 pieces in stock; 1-796638-2 has 1530 pieces in stock.

Regulatory Alignment: ROHS3 compliance of the TE Connectivity part provides alignment with the most current regulatory framework.

Manufacturer Preference: Organizational supply chain strategy and existing qualification records with either Amphenol PCD or TE Connectivity may influence selection.

Frequently Asked Questions (FAQ)

Q: What makes 1-796638-2 a valid substitute for ELFH1221G?

A: Both components share the critical 0.200" (5.08mm) pitch specification and right-angle header orientation required for PCB-mounted terminal block applications. Both maintain active product status, RoHS compliance, MSL 1 rating, and identical HTSUS classification, confirming functional and regulatory equivalence.

Q: Are there any differences in electrical performance between these parts?

A: The TE Connectivity 1-796638-2 specifies 15 A current rating (UL) and 300 V voltage rating (UL). The ELFH1221G does not provide these electrical specifications in the available data. Verification against application requirements is necessary when electrical ratings are critical to the design.

Q: What is the significance of the pitch specification in terminal block selection?

A: Pitch (0.200" or 5.08mm) determines the physical spacing between contact positions and directly affects PCB layout compatibility. Mismatched pitch values result in mechanical incompatibility and connection failure. Both parts maintain identical pitch specifications.

Q: How do RoHS and ROHS3 compliance differ?

A: RoHS Compliant indicates compliance with the original Restriction of Hazardous Substances directive. ROHS3 Compliant indicates compliance with the current version (Directive 2011/65/EU as amended). Both certifications confirm absence of restricted substances; ROHS3 represents the current regulatory standard.

Q: Does packaging format affect substitution eligibility?

A: Both components are supplied in bulk packaging, maintaining consistency with standard component distribution and inventory management practices. Packaging format does not affect electrical or mechanical compatibility.

Q: What is MSL 1 (Unlimited) and why is it relevant?

A: Moisture Sensitivity Level 1 (Unlimited) indicates the component has no moisture sensitivity restrictions and requires no special storage or handling precautions. Both parts share this rating, confirming equivalent storage and manufacturing compatibility.