ELFH22250 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The ELFH22250 is a 22-position terminal block header manufactured by Amphenol PCD, designed for vertical through-hole mounting with 5.08mm pitch spacing. This shrouded, male-pin header is rated for 300V UL and 15A UL current, operating across -40°C to 105°C. The component is actively produced and RoHS compliant, making it suitable for industrial control, power distribution, and signal routing applications. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and cost optimization when the primary part becomes unavailable or when alternative sourcing is required.

Key Parameters

Parameter	Value
Manufacturer Part Number	ELFH22250
Manufacturer	Amphenol PCD
Number of Positions	22
Pitch	0.200" (5.08mm)
Header Orientation	Vertical
Type	Header, Male Pins, Shrouded (4 Side)
Mounting Type	Through Hole
Termination Style	Solder
Voltage - UL	300 V
Current - UL	15 A
Operating Temperature	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

Substitution of the ELFH22250 is determined by strict equivalence across the following critical parameters:

Position Count & Pitch: 22 positions at 0.200" (5.08mm) spacing
Physical Configuration: Vertical orientation, male pins, 4-side shrouded design
Mounting & Termination: Through-hole solder termination
Electrical Ratings: Minimum 300V UL voltage rating and minimum 12A current capacity
Compliance: UL94 V-0 flammability rating, RoHS compliance status
Contact & Housing Materials: Brass contacts with thermoplastic housing

The substitute part 1755930 (Phoenix Contact COMBICON MSTBVA series) meets these core substitution criteria, maintaining functional and mechanical compatibility with the ELFH22250 in standard terminal block applications.

Parameter Comparison

Parameter	ELFH22250 (Amphenol PCD)	1755930 (Phoenix Contact)	Compatibility
Number of Positions	22	22	Equivalent
Pitch	0.200" (5.08mm)	0.200" (5.08mm)	Equivalent
Header Orientation	Vertical	Vertical	Equivalent
Type	Header, Male Pins, Shrouded (4 Side)	Header, Male Pins, Shrouded (4 Side)	Equivalent
Mounting Type	Through Hole	Through Hole	Equivalent
Termination Style	Solder	Solder	Equivalent
Voltage - UL	300 V	300 V	Equivalent
Current - UL	15 A	12 A	Compatible (1755930 rated lower)
Operating Temperature	-40°C ~ 105°C	Not specified	Data not provided for substitute
Material Flammability Rating	UL94 V-0	UL94 V-0	Equivalent
Contact Mating Finish	Tin	Tin	Equivalent
RoHS Status	RoHS Compliant	ROHS3 Compliant	Equivalent
Insulation Height	0.319" (8.10mm)	0.472" (12.00mm)	Different (1755930 taller)
Contact Tail Length	Not specified	0.154" (3.90mm)	Data not provided for main part

Engineering Selection Recommendations

ELFH22250 (Amphenol PCD) is the primary specification. This part is actively produced, RoHS compliant, and rated for 15A at 300V UL. It is the preferred choice for new designs and applications requiring the specified electrical performance.

1755930 (Phoenix Contact COMBICON MSTBVA) serves as a functional substitute when ELFH22250 availability is constrained. Both parts share identical pitch, position count, orientation, and shrouded male-pin configuration. Both meet UL94 V-0 flammability requirements and maintain tin contact mating finish. The 1755930 is rated for 12A UL current (lower than the 15A rating of ELFH22250) and carries ROHS3 compliance. The increased insulation height (0.472" vs. 0.319") and specified contact tail length (0.154") of the 1755930 must be evaluated for PCB layout compatibility and mechanical clearance in the target application.

Selection between these parts should be based on application current requirements, available PCB space, and supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Can the 1755930 directly replace the ELFH22250 in all applications?

A: The 1755930 is mechanically and electrically compatible for applications requiring 12A or less at 300V. The increased insulation height (0.472" vs. 0.319") requires verification of available PCB clearance. If the application requires the full 15A rating of the ELFH22250, the 1755930 is not suitable.

Q: What is the significance of the different insulation heights?

A: Insulation height affects the vertical clearance between the PCB surface and the top of the component. The 1755930's greater height (0.472") may interfere with overlying components or enclosure constraints designed for the ELFH22250's 0.319" height. PCB layout must be re-evaluated if substituting.

Q: Are both parts RoHS compliant?

A: Yes. The ELFH22250 is RoHS Compliant, and the 1755930 is ROHS3 Compliant. Both meet current RoHS requirements.

Q: What is the pitch, and why does it matter for substitution?

A: Pitch is the center-to-center distance between adjacent pins, specified as 0.200" (5.08mm) for both parts. Matching pitch ensures that mating connectors and PCB footprints remain compatible between the main part and substitute.

Q: Do both parts use the same contact material?

A: Both parts feature tin contact mating finish. The ELFH22250 specifies brass contacts; contact material for the 1755930 is not provided in the technical data.

Q: What is the difference in current ratings between these parts?

A: The ELFH22250 is rated for 15A UL, while the 1755930 is rated for 12A UL. Applications requiring currents between 12A and 15A cannot use the 1755930 as a substitute.

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