ELFH05250E Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The ELFH05250E is a 5-position terminal block header manufactured by Amphenol PCD, designed for vertical through-hole mounting with 5.08mm pitch spacing. This shrouded male pin header operates at 300V UL and 15A UL current rating, suitable for industrial control and power distribution applications. The component is actively produced and RoHS compliant, making it a standard choice for PCB-to-wire interconnection in embedded systems and industrial equipment. Alternative equivalent parts may be required due to supply constraints, design revisions, or specific application requirements for voltage or current performance.

Substiute Parts

ELFH05250E

Amphenol PCDIn Stock: 1194ELFH05250E Datasheet

Current PartRFQ

1777109

Phoenix ContactIn Stock: 51071777109 Datasheet

SimilarRFQ

1955662

Phoenix ContactIn Stock: 10611955662 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELFH05250E is determined by strict equivalence across the following critical parameters:

• Position Count & Pitch: All substitutes must have exactly 5 positions with 0.200" (5.08mm) pitch spacing to ensure PCB footprint compatibility
• Header Type & Orientation: Vertical orientation with male pins and 4-side shrouding is mandatory for mechanical fit and mating interface compatibility
• Mounting & Termination: Through-hole solder termination is required for assembly process compatibility
• Electrical Ratings: Substitutes must meet or exceed the 300V UL and 15A UL specifications to ensure safe operation in the intended application
• Compliance: RoHS compliance and UL94 V-0 flammability rating are required for regulatory and safety standards adherence

The two identified substitutes (Phoenix Contact 1777109 and 1955662) meet these core mechanical and electrical criteria, though with variations in housing material, contact tail length, and insulation height that may affect specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

ELFH05250E (Amphenol PCD) remains the primary specification. This part is actively produced, RoHS compliant, and rated for 15A UL operation at 300V UL, meeting full application requirements without derating.

1777109 (Phoenix Contact COMBICON MSTBV) is electrically suitable as a substitute where 12A UL current capacity is acceptable. This part maintains 300V UL voltage rating and UL94 V-0 flammability compliance. The increased insulation height (0.472" vs. 0.319") and longer contact tail (0.154") may require PCB layout verification to ensure clearance compatibility. ROHS3 compliance provides enhanced regulatory coverage.

1955662 (Phoenix Contact COMBICON CCV) is suitable only for applications where 10A UL current capacity is sufficient. This part features Liquid Crystal Polymer (LCP) housing material instead of PBT, offering improved thermal and mechanical properties. The reduced contact tail length (0.102") and increased insulation height (0.472") require PCB footprint validation. RoHS compliance is confirmed, though operating temperature range is not specified in available data.

Selection between substitutes depends on current requirements and PCB layout constraints. Both Phoenix Contact alternatives maintain the critical 5-position, 5.08mm pitch, vertical through-hole configuration and UL94 V-0 safety rating.

Frequently Asked Questions (FAQ)

Q: Can 1777109 or 1955662 be used as direct drop-in replacements for ELFH05250E?

A: Both parts share identical position count, pitch, orientation, and mounting type. However, differences in insulation height and contact tail length require PCB layout verification. The 1777109 and 1955662 have increased insulation heights (0.472" vs. 0.319"), which may affect clearance to adjacent components or board edges. Contact your PCB designer to confirm footprint compatibility before substitution.

Q: What is the current rating difference between these parts?

A: ELFH05250E is rated for 15A UL. The 1777109 is rated for 12A UL, and 1955662 is rated for 10A UL. If your application requires the full 15A capacity, only the ELFH05250E meets this specification. For applications operating below 10A, all three parts are suitable.

Q: Are all three parts RoHS compliant?

A: Yes. ELFH05250E and 1955662 are RoHS Compliant. The 1777109 is ROHS3 Compliant, which represents an updated compliance standard. All three parts meet RoHS requirements for hazardous substance restrictions.

Q: What is the difference between PBT and LCP housing materials?

A: ELFH05250E and 1777109 use Polybutylene Terephthalate (PBT) housing. The 1955662 uses Liquid Crystal Polymer (LCP) housing. LCP offers superior thermal stability and mechanical strength at elevated temperatures, but both materials meet UL94 V-0 flammability requirements. Material selection does not affect electrical performance for this application.

Q: Do all parts support the same voltage rating?

A: Yes. All three parts are rated for 300V UL, meeting the primary voltage specification. The 1777109 also supports 630V IEC and 12A IEC, providing additional margin for international applications, though this exceeds the UL specification baseline.

Q: What should I verify before substituting parts on an existing PCB design?

A: Verify PCB footprint compatibility by comparing contact tail length and insulation height. The ELFH05250E has an insulation height of 0.319", while both Phoenix Contact alternatives have 0.472" insulation height. Confirm that this dimensional difference does not create clearance conflicts with adjacent components, solder mask openings, or board edge spacing. Additionally, verify that the application current requirement does not exceed the substitute part's UL rating.