TE Connectivity AMP Connectors 1776166-8 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1776166-8 is a 16 Position Terminal Block Header with male pins, shrouded on four sides, designed for 90° right angle through hole mounting. This component operates at 300 V UL and 12 A UL current rating with an operating temperature range of -40°C to 110°C. The part is actively manufactured and RoHS compliant, making it suitable for industrial control, automation, and power distribution applications where reliable terminal block connections are required. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility is needed.

Substiute Parts

1776166-8

TE Connectivity AMP ConnectorsIn Stock: 8051776166-8 Datasheet

Current PartRFQ

1842128

Phoenix ContactIn Stock: 8581842128 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 1776166-8 with the Phoenix Contact 1842128 is based on the following critical parameters that determine functional equivalence:

Matching Parameters:

• 16 total positions with 8 positions per level and 2 levels
• 90° right angle header orientation
• Male pins with 4-side shrouding
• Solder termination style
• Through hole mounting
• 300 V UL voltage rating
• UL94 V-0 flammability rating
• RoHS compliance
• MSL 1 (Unlimited) moisture sensitivity

Allowable Variations:

• Pitch tolerance: 0.197" (5.00mm) to 0.200" (5.08mm) represents a 0.003" (0.08mm) difference, which is within acceptable mechanical tolerance for terminal block header applications
• Current rating: 12 A UL (main part) to 15 A UL (substitute) represents an increase in current capacity, which is acceptable for substitution purposes
• Housing material: Polyamide (PA) Nylon to Polybutylene Terephthalate (PBT) both meet UL94 V-0 requirements
• Contact tail length: 0.138" (3.50mm) to 0.126" (3.20mm) represents a 0.012" (0.30mm) difference within acceptable solder joint design margins

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1842128 is a direct functional substitute for the TE Connectivity 1776166-8 based on the following engineering criteria:

Compliance and Certification: Both parts are RoHS compliant and carry UL94 V-0 flammability ratings, meeting regulatory requirements for industrial applications. Both parts are classified as EAR99 for export control purposes and share the same HTSUS commodity code, indicating equivalent tariff classification.

Electrical Performance: The substitute part meets or exceeds the electrical specifications of the main part. The 300 V UL rating is identical, and the 15 A UL current rating of the substitute exceeds the 12 A UL rating of the main part, providing additional current capacity margin.

Mechanical Compatibility: The 16-position configuration with 8 positions per level and 2-level arrangement is identical. The pitch difference of 0.003" (0.08mm) between 5.00mm and 5.08mm is within standard mechanical tolerances for terminal block applications. The contact tail length difference of 0.012" (0.30mm) and insulation height difference of 0.031" (0.80mm) are within acceptable design margins for through-hole solder joint formation.

Material and Environmental: Both parts feature tin-plated contacts and UL94 V-0 rated housing materials. The substitute uses PBT instead of polyamide, both of which meet the same flammability standard. Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no special storage or handling requirements.

Product Status: Both parts are actively manufactured and available in stock, ensuring supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1842128 be used as a direct replacement for the TE Connectivity 1776166-8 in existing designs?

A: The Phoenix Contact 1842128 is functionally equivalent for applications requiring 16-position terminal block headers with 90° right angle through-hole mounting. The pitch tolerance of 0.003" (0.08mm) and contact tail length difference of 0.012" (0.30mm) are within acceptable mechanical tolerances for PCB-mounted applications. Verification of PCB footprint compatibility is necessary before implementation.

Q: What is the significance of the pitch difference between 5.00mm and 5.08mm?

A: The pitch difference of 0.08mm represents a 1.6% variation. For terminal block headers, this difference is within standard manufacturing tolerances and does not affect electrical performance. PCB layout verification is required to confirm that the substitute part footprint aligns with existing board designs.

Q: Are there any differences in current-carrying capacity between these parts?

A: The TE Connectivity 1776166-8 is rated for 12 A UL, while the Phoenix Contact 1842128 is rated for 15 A UL. The substitute part has a higher current rating, which is acceptable for substitution. Applications operating at or below 12 A will function within the specifications of both parts.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both parts are RoHS compliant, carry UL94 V-0 flammability ratings, are classified as EAR99 for export control, and share the same HTSUS commodity code (8536.69.4040). Both parts carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the difference between the housing materials used in these parts?

A: The TE Connectivity 1776166-8 uses Polyamide (PA) Nylon, while the Phoenix Contact 1842128 uses Polybutylene Terephthalate (PBT). Both materials meet UL94 V-0 flammability requirements. PBT offers improved chemical resistance and dimensional stability compared to polyamide.

Q: Are the contact tail lengths compatible with standard PCB solder joint designs?

A: The TE Connectivity part has a contact tail length of 0.138" (3.50mm), while the Phoenix Contact part has 0.126" (3.20mm). The 0.012" (0.30mm) difference is within acceptable design margins for through-hole solder joint formation on standard PCB thicknesses (0.062" to 0.093").

Q: Can these parts be used interchangeably in the same application without design changes?

A: PCB footprint verification is required before interchangeability. The pitch tolerance of 0.08mm and dimensional variations in contact tail length and insulation height must be confirmed against the specific PCB layout. Once verified, the parts are electrically and mechanically compatible.