TE Connectivity AMP Connectors 1776143-2 Terminal Block Header Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1776143-2 is a 2-position terminal block header with male pins, shrouded on 2 sides, featuring a 0.200" (5.08mm) vertical pitch and through-hole solder termination. This component is classified as Active product status and is RoHS Compliant with UL94 V-0 flammability rating. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when design requirements permit equivalent electrical and mechanical specifications.

Substiute Parts

1776143-2

TE Connectivity AMP ConnectorsIn Stock: 8491776143-2 Datasheet

Current PartRFQ

1753437

Phoenix ContactIn Stock: 20521753437 Datasheet

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ELFH02250

Amphenol PCDIn Stock: 3482ELFH02250 Datasheet

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OQ0253500000G

Amphenol AnytekIn Stock: 3396OQ0253500000G Datasheet

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OQ0270500000G

Amphenol AnytekIn Stock: 3305OQ0270500000G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1776143-2 are identified based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

• Number of Positions: 2
• Termination Style: Solder
• Mounting Type: Through Hole
• Header Orientation: Vertical
• Material Flammability Rating: UL94 V-0
• Voltage - UL: 300 V
• Contact Mating Finish: Tin

Secondary Compatibility Parameters:

• Pitch tolerance: 0.200" (5.08mm) or 0.197" (5.00mm) are considered equivalent within industry standards
• Shrouding configuration: 2-side or 4-side shrouding both acceptable for terminal block headers
• Current rating: Minimum 12 A UL rating acceptable for applications rated at 15 A or below
• Operating temperature range: -40°C minimum and 110°C maximum or higher acceptable
• RoHS compliance status: ROHS3 Compliant or RoHS Compliant both acceptable

Substitutes are grouped into two categories: exact pitch matches (5.08mm) and near-pitch equivalents (5.00mm). All substitute parts maintain the same electrical performance envelope and mechanical compatibility for standard PCB mounting applications.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitutes (Exact Pitch 5.08mm):

ELFH02250 (Amphenol PCD) and OQ0253500000G (Amphenol Anytek) are direct electrical and mechanical substitutes for the 1776143-2. Both maintain the 0.200" (5.08mm) pitch, 15 A UL current rating (ELFH02250) or 12 A UL current rating (OQ0253500000G), 300 V UL voltage rating, UL94 V-0 flammability compliance, and tin contact mating finish. ELFH02250 features 4-side shrouding compared to the 2-side shrouding of the main part, providing enhanced mechanical protection. OQ0253500000G maintains identical 2-side shrouding configuration. Both parts are ROHS3 Compliant and suitable for applications requiring RoHS compliance.

Near-Pitch Equivalents (5.00mm):

1753437 (Phoenix Contact) and OQ0270500000G (Amphenol Anytek) operate at 0.197" (5.00mm) pitch, representing a 0.003" (0.08mm) deviation from the main part specification. Both maintain 300 V UL voltage rating, UL94 V-0 flammability compliance, and tin contact mating finish. These parts are suitable for applications where pitch tolerance permits minor spacing variations. 1753437 is rated at 12 A UL current and ROHS3 Compliant. OQ0270500000G is rated at 12 A UL current and ROHS3 Compliant with extended operating temperature range to 115°C.

Selection Criteria:

• For applications requiring exact 5.08mm pitch spacing: select ELFH02250 or OQ0253500000G
• For applications permitting 5.00mm pitch spacing: select 1753437 or OQ0270500000G
• For applications requiring maximum current capacity: select ELFH02250 (15 A UL rating)
• For applications requiring extended temperature operation: select OQ0253500000G or OQ0270500000G (-40°C to 115°C)
• For applications requiring 4-side shrouding: select ELFH02250
• All substitute parts maintain Active product status and full compliance with UL94 V-0 flammability requirements

Frequently Asked Questions (FAQ)

Q: Can OQ0253500000G be used as a direct replacement for 1776143-2?

A: Yes. OQ0253500000G maintains identical 0.200" (5.08mm) pitch, 300 V UL voltage rating, UL94 V-0 flammability compliance, tin contact mating finish, and 2-side shrouding configuration. The 12 A UL current rating is acceptable for applications rated at 15 A or below. Both parts are through-hole solder-terminated vertical headers with 2 positions.

Q: What is the difference between 5.08mm and 5.00mm pitch terminal blocks?

A: The pitch difference of 0.003" (0.08mm) represents a minor spacing variation. For PCB designs with fixed mounting hole patterns, exact pitch matching is required. For designs with tolerance in hole spacing, the 5.00mm pitch parts (1753437 and OQ0270500000G) are functionally equivalent. Verify PCB layout compatibility before substitution.

Q: Why does ELFH02250 have a lower insulation height than the main part?

A: ELFH02250 features 0.319" (8.10mm) insulation height compared to 0.472" (12.00mm) for the main part. This dimensional difference results from different housing designs between manufacturers. Verify clearance requirements in the application before substitution to ensure adequate spacing above the PCB surface.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed carry ROHS3 Compliant or RoHS Compliant status. The main part 1776143-2 is RoHS Compliant. All parts meet RoHS requirements for restricted substance elimination.

Q: What is the significance of the 2-side versus 4-side shrouding?

A: Shrouding configuration affects mechanical protection and mating interface design. The main part 1776143-2 features 2-side shrouding. ELFH02250 features 4-side shrouding, providing enhanced protection on all sides. Both configurations are suitable for standard terminal block applications. Verify connector mating compatibility with the receiving socket before substitution.

Q: Can I substitute a 12 A rated part for a 15 A application?

A: Substitution of 12 A rated parts (OQ0253500000G, OQ0270500000G, 1753437) for 15 A applications is acceptable only if the actual circuit current draw does not exceed 12 A. The 15 A rating of the main part 1776143-2 and ELFH02250 provides additional current capacity margin. For applications requiring the full 15 A capacity, select parts with 15 A UL rating.

Q: What is the operating temperature range for 1753437?

A: Operating temperature range for 1753437 is not specified in the provided data. The main part 1776143-2 operates from -40°C to 110°C. OQ0253500000G and OQ0270500000G both operate from -40°C to 115°C. For applications requiring defined temperature specifications, select parts with documented operating temperature ranges.

Q: Are the contact materials compatible between substitute parts?

A: The main part 1776143-2 uses Copper Alloy contacts. ELFH02250 uses Brass contacts. OQ0253500000G and OQ0270500000G use Copper Alloy contacts. 1753437 contact material is not specified. All parts feature tin contact mating finish. Contact material differences do not affect electrical performance for standard terminal block applications.