ELFH03250E Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The ELFH03250E is a 3-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 15A (UL) and 300V (UL), suitable for industrial control and power distribution applications. The component is active in production and RoHS compliant. Equivalent parts from alternative manufacturers are available to support supply chain flexibility, design standardization across product lines, and inventory optimization.

Key Parameters

Parameter	Value
Manufacturer Part Number	ELFH03250E
Manufacturer	Amphenol PCD
Category	Terminal Blocks
Number of Positions	3
Pitch	0.200" (5.08mm)
Header Orientation	Vertical
Type	Header, Male Pins, Shrouded (4 Side)
Mounting Type	Through Hole
Termination Style	Solder
Current Rating (UL)	15 A
Voltage Rating (UL)	300 V
Operating Temperature	-40°C ~ 105°C
Housing Material	Polybutylene Terephthalate (PBT)
Material Flammability Rating	UL94 V-0
Contact Mating Finish	Tin
RoHS Status	RoHS Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the ELFH03250E is determined by strict equivalence across the following critical parameters:

Electrical Compatibility: Number of positions (3), pitch spacing (5.08mm), voltage rating minimum 300V (UL), current rating minimum 15A (UL)
Mechanical Compatibility: Vertical orientation, through-hole mounting, solder termination, shrouded male pin configuration
Material & Safety: PBT housing, UL94 V-0 flammability rating, tin or gold contact finish
Regulatory Compliance: RoHS compliance status, active product status

All three substitute parts meet these core criteria. Variations in IEC ratings, insulation height, contact tail length, and contact mating finish do not preclude substitution when UL ratings satisfy application requirements.

Parameter Comparison

Parameter	ELFH03250E (Amphenol PCD)	1777086 (Phoenix Contact)	1809270 (Phoenix Contact)	1863770 (Phoenix Contact)
Number of Positions	3	3	3	3
Pitch	0.200" (5.08mm)	0.200" (5.08mm)	0.200" (5.08mm)	0.200" (5.08mm)
Header Orientation	Vertical	Vertical	Vertical	Vertical
Type	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Termination Style	Solder	Solder	Solder	Solder
Current Rating (UL)	15 A	12 A	15 A	12 A
Voltage Rating (UL)	300 V	300 V	300 V	300 V
Housing Material	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Contact Mating Finish	Tin	Tin	Tin	Gold
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active
Insulation Height	0.319" (8.10mm)	0.472" (12.00mm)	0.472" (12.00mm)	0.472" (12.00mm)
Contact Tail Length	Not specified	0.154" (3.90mm)	0.154" (3.90mm)	0.154" (3.90mm)

Engineering Selection Recommendations

All three Phoenix Contact substitute parts (1777086, 1809270, 1863770) are active products with ROHS3 compliance and meet the core electrical and mechanical requirements of the ELFH03250E.

1809270 provides the closest electrical match with 15A UL current rating, matching the original specification exactly. This part is suitable for direct substitution in applications requiring full current capacity.

1777086 and 1863770 are rated at 12A (UL), which is acceptable for applications operating below 15A. The 1863770 features gold contact mating finish, providing enhanced corrosion resistance compared to the tin finish of the original part and 1777086.

All substitute parts feature increased insulation height (0.472" versus 0.319") and specified contact tail length (0.154"), which may affect PCB layout and mechanical clearance. Verify board-level compatibility before implementation.

Frequently Asked Questions (FAQ)

Q: Can 1809270 replace ELFH03250E in all applications? A: Yes. The 1809270 matches the 15A UL current rating and 300V UL voltage rating of the original part, with identical pitch, position count, and mounting configuration. Verify PCB clearance due to increased insulation height.

Q: Are 1777086 and 1863770 suitable for 15A applications? A: No. Both parts are rated at 12A (UL). Use these substitutes only in applications where the actual current draw does not exceed 12A. The 300V UL voltage rating remains compatible.

Q: What is the difference between 1777086 and 1863770? A: Both are 3-position, 5.08mm pitch vertical headers with 12A UL current rating. The primary difference is contact mating finish: 1777086 uses tin finish, while 1863770 uses gold finish. Gold finish provides superior corrosion resistance in high-humidity or corrosive environments.

Q: Will the increased insulation height of substitute parts affect my design? A: The substitute parts have 0.472" insulation height compared to 0.319" for the ELFH03250E. Verify that your PCB layout and mechanical assembly accommodate this 0.153" increase in height. Contact tail length is also specified at 0.154" for all substitutes.

Q: Are all substitute parts RoHS compliant? A: Yes. All three Phoenix Contact parts are ROHS3 compliant, meeting current RoHS directive requirements. The original ELFH03250E is RoHS compliant.

Q: Can I use these parts interchangeably on the same PCB? A: Electrical interchangeability is confirmed for 1809270. For 1777086 and 1863770, confirm that your application current does not exceed 12A. Mechanical interchangeability requires verification of PCB footprint tolerance and clearance for the increased insulation height.

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