ELFH20180 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The ELFH20180 is a 20-position vertical terminal block header manufactured by Amphenol PCD. This component features male pins with 4-side shrouding and a 5.00mm pitch, designed for through-hole solder termination. The part is currently active in production with 1064 units in stock. Terminal block headers of this type are essential interconnect components in industrial control systems, power distribution panels, and modular electronic assemblies where reliable, field-replaceable connections are required. Substitute parts may be necessary due to supply constraints, regional availability, or specific application requirements within the allowed electrical and mechanical parameters.

Substiute Parts

ELFH20180

Amphenol PCDIn Stock: 1116ELFH20180 Datasheet

Current PartRFQ

1755914

Phoenix ContactIn Stock: 11811755914 Datasheet

SimilarRFQ

1758199

Phoenix ContactIn Stock: 10191758199 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELFH20180 is determined by the following critical parameters:

• Number of Positions: Must equal 20
• Header Orientation: Must be Vertical
• Termination Style: Must be Solder
• Mounting Type: Must be Through Hole
• Pitch Tolerance: Acceptable within 0.197" (5.00mm) to 0.200" (5.08mm) range, representing a 0.6% dimensional variance
• Shrouding Configuration: Must provide equivalent mechanical protection (4-side or 2-side shrouding acceptable)
• Voltage Rating - UL: Must meet or exceed 300 V
• Current Rating - UL: Must meet or exceed 15 A
• Material Flammability: Must meet UL94 V-0 minimum
• RoHS Compliance: Must be RoHS3 Compliant or equivalent

The two substitute parts listed (1755914 and 1758199) satisfy these criteria with minor pitch variation (5.08mm vs. 5.00mm) and shrouding configuration differences that do not affect functional compatibility in standard applications.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain active product status and meet the core electrical and mechanical requirements for functional substitution:

Part 1755914 (Phoenix Contact COMBICON MSTBVA) provides the closest mechanical match with 4-side shrouding identical to the main part. The 0.6% pitch increase (5.08mm vs. 5.00mm) falls within acceptable tolerance for standard PCB layouts. Current rating of 12 A is lower than the main part's 15 A specification; this part is suitable for applications operating at or below 12 A. Voltage rating of 300 V matches the main part exactly. ROHS3 compliance exceeds the RoHS Compliant requirement of the main part.

Part 1758199 (Phoenix Contact COMBICON MSTBV) features 2-side shrouding instead of 4-side, reducing mechanical protection. The pitch specification matches part 1755914 at 5.08mm. Current and voltage ratings are identical to part 1755914 (12 A, 300 V). This part is suitable for applications where reduced shrouding is acceptable and current does not exceed 12 A. ROHS3 compliance and identical electrical ratings apply.

Selection between substitutes depends on application-specific requirements: choose 1755914 for maximum mechanical protection matching the original design; choose 1758199 only if 2-side shrouding is acceptable for the application. Both parts are suitable only for circuits operating at 12 A or below.

Frequently Asked Questions (FAQ)

Q: Can I use part 1755914 or 1758199 as a direct replacement for ELFH20180?

A: Both parts are functionally compatible within the specified electrical and mechanical parameters. However, the current rating difference (12 A vs. 15 A) must be considered. If your application operates at 12 A or below, either part is suitable. If your application requires 15 A operation, neither substitute meets the current requirement.

Q: What is the significance of the pitch difference between 5.00mm and 5.08mm?

A: The pitch difference represents a 0.6% dimensional variance. For standard PCB designs with typical component spacing tolerances, this variance is acceptable. However, designs with tight spacing constraints or custom connectors may require verification of mechanical fit before implementation.

Q: Why does part 1758199 have 2-side shrouding instead of 4-side?

A: The shrouding configuration affects mechanical protection and EMI shielding characteristics. Part 1758199 provides reduced shrouding, which may be acceptable in applications where full 4-side protection is not required. Applications requiring maximum protection should use part 1755914 or the original ELFH20180.

Q: Are the Phoenix Contact substitutes RoHS compliant?

A: Yes, both Phoenix Contact parts (1755914 and 1758199) are ROHS3 Compliant, which exceeds the RoHS Compliant status of the main part ELFH20180.

Q: What is the impact of the color difference (Black vs. Green)?

A: Color is a visual identification characteristic only and does not affect electrical or mechanical function. The color difference reflects manufacturer design standards and does not impact substitution compatibility.

Q: Can I use these substitutes in high-current applications?

A: The substitute parts are rated for 12 A maximum under UL standards, compared to the main part's 15 A rating. Applications requiring currents above 12 A must use the original ELFH20180 or identify alternative parts with higher current ratings.

Q: Are operating temperature ranges specified for the substitute parts?

A: Operating temperature information is not provided in the technical data for parts 1755914 and 1758199. The main part ELFH20180 operates from -40°C to 105°C. If operating temperature range is critical to your application, contact the manufacturer for complete thermal specifications of the substitute parts.