ELFH18290 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The ELFH18290 is an 18-position terminal block header manufactured by Amphenol PCD, designed for vertical through-hole mounting with 0.200" (5.08mm) pitch spacing. This component features male pins with 2-side shrouding and is rated for 15A at 300V (UL). The part is currently active in production with 673 units in stock. Alternative models may be required due to packaging availability, inventory constraints, or specific application requirements for different shrouding configurations or pitch tolerances.

Substiute Parts

ELFH18290

Amphenol PCDIn Stock: 702ELFH18290 Datasheet

Current PartRFQ

1755668

Phoenix ContactIn Stock: 10411755668 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ELFH18290 is determined by the following critical parameters:

• Position Count: Must be 18 positions to maintain connector compatibility
• Pitch Specification: 0.200" (5.08mm) nominal pitch; tolerance of ±0.003" (±0.076mm) is acceptable for mechanical fit
• Header Orientation: Must be vertical through-hole configuration
• Termination Style: Solder termination required
• Electrical Ratings: Minimum 15A current capacity and 300V voltage rating (UL standard)
• Shrouding Configuration: 2-side or 4-side shrouding both acceptable; affects PCB footprint clearance
• Flammability Compliance: UL94 V-0 rating required
• RoHS Compliance: RoHS or ROHS3 compliant status required

The substitute part 1755668 (Phoenix Contact COMBICON MSTBVA series) meets these criteria with a pitch of 0.197" (5.00mm), which falls within acceptable mechanical tolerance, and provides equivalent electrical performance with 12A IEC / 12A UL current rating and 400V IEC / 300V UL voltage rating.

Parameter Comparison

Engineering Selection Recommendations

Primary Part (ELFH18290): Select when 15A current capacity is required and 2-side shrouding meets PCB layout constraints. RoHS compliant status and active production status ensure supply continuity.

Substitute Part (1755668): Select when application current requirement is ≤12A and 4-side shrouding is acceptable or beneficial for EMI mitigation. ROHS3 compliance meets current regulatory standards. Verify PCB footprint accommodates 4-side shrouding geometry before implementation. Pitch tolerance of 0.003" (0.08mm) is within standard PCB manufacturing tolerances.

Both parts meet UL94 V-0 flammability requirements and operate across -40°C to 105°C temperature range. Selection should be based on current capacity requirements and available inventory.

Frequently Asked Questions (FAQ)

Q: Can 1755668 directly replace ELFH18290 on existing PCBs? A: Mechanical substitution is possible with pitch variance of 0.003" (5.08mm vs 5.00mm), which is within standard PCB tolerance. However, 4-side shrouding on 1755668 requires verification that PCB clearance accommodates the additional shroud width. Contact tail length and insulation height differences are negligible.

Q: What is the current capacity difference between these parts? A: ELFH18290 is rated 15A (UL), while 1755668 is rated 12A (UL). For applications requiring >12A, ELFH18290 is the only suitable option. For applications ≤12A, both parts are electrically equivalent.

Q: Are both parts RoHS compliant? A: Yes. ELFH18290 is RoHS Compliant, and 1755668 is ROHS3 Compliant. Both meet regulatory requirements for restricted substance elimination.

Q: What does the shrouding difference mean? A: ELFH18290 has 2-side shrouding (left and right sides protected), while 1755668 has 4-side shrouding (all four sides protected). 4-side shrouding provides enhanced EMI shielding and mechanical protection but requires additional PCB clearance.

Q: Are the electrical ratings equivalent? A: Both parts are rated 300V (UL). Current ratings differ: ELFH18290 at 15A and 1755668 at 12A. Voltage ratings are identical and suitable for standard industrial control applications.

Q: What is the pitch tolerance consideration? A: The 0.003" (0.08mm) pitch difference between 5.08mm and 5.00mm is within standard PCB manufacturing tolerance of ±0.005" (±0.127mm). This variance does not affect mechanical fit or electrical performance.