TE Connectivity AMP Connectors 1-1776491-3 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-1776491-3 is a 13-position wire-to-board terminal block with side entry configuration and 5.00mm pitch, designed for horizontal mounting on printed circuit boards through 0.197" (5.00mm) through holes. This component operates at 10 A and 300 V with screw-leaf spring wire termination and wire guard features.

The 1-1776491-3 carries an obsolete product status. Identifying equivalent and substitute terminal blocks ensures design continuity and supply chain reliability for applications requiring compatible electrical and mechanical characteristics.

Substiute Parts

1-1776491-3

TE Connectivity AMP ConnectorsIn Stock: 11681-1776491-3 Datasheet

Current PartRFQ

OSTT3130451

On Shore Technology Inc.In Stock: 994OSTT3130451 Datasheet

SimilarRFQ

OSTT3190451

On Shore Technology Inc.In Stock: 1200OSTT3190451 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute terminal blocks for the 1-1776491-3 are evaluated based on the following critical parameters that determine functional compatibility:

Matching Parameters:

• Pitch: 0.197" (5.00mm)
• Mating Orientation: Horizontal with Board
• Mounting Type: Through Hole
• Wire Termination: Screw - Leaf Spring, Wire Guard
• Features: Interlocking (Side)
• Voltage Rating: 300 V

Allowable Variations:

• Positions Per Level: The 1-1776491-3 specifies 13 positions. Substitute parts with different position counts remain functionally equivalent for applications where the specific position count is not a design constraint.
• Current Rating: The 1-1776491-3 is rated at 10 A. Substitute parts with lower current ratings (8 A) are suitable for applications operating within the substitute's current specification.
• Wire Gauge: The 1-1776491-3 accepts 14-22 AWG. Substitute parts with expanded wire gauge ranges (14-26 AWG) provide broader wire accommodation while maintaining compatibility.
• Operating Temperature: The 1-1776491-3 operates from -55°C to 105°C. Substitute parts with narrower temperature ranges (-30°C to 105°C) are suitable for applications within the substitute's specified range.

Parameter Comparison

Engineering Selection Recommendations

OSTT3130451 Selection Criteria:

The OSTT3130451 is an active product from On Shore Technology Inc. with identical position count (13) to the obsolete 1-1776491-3. This substitute maintains the same electrical interface footprint and mechanical mounting configuration. The OSTT3130451 carries ROHS3 compliance and REACH unaffected status, meeting modern regulatory requirements. The current rating of 8 A is suitable for applications operating within this specification. The operating temperature range of -30°C to 105°C accommodates standard industrial environments. Selection of this substitute is appropriate for designs where the 13-position configuration is required and current draw does not exceed 8 A.

OSTT3190451 Selection Criteria:

The OSTT3190451 is an active product from On Shore Technology Inc. with expanded position count (19) compared to the 1-1776491-3. This substitute shares identical pitch, mating orientation, mounting type, and wire termination characteristics. The OSTT3190451 carries ROHS3 compliance and REACH unaffected status. The 19-position configuration provides additional connection points on the same 5.00mm pitch footprint. Selection of this substitute is appropriate for applications requiring expanded terminal capacity while maintaining the same electrical and mechanical interface standards.

Both substitute parts are active products with current manufacturing support and regulatory compliance certifications, providing supply chain continuity for obsolete 1-1776491-3 applications.

Frequently Asked Questions (FAQ)

Q: Can the OSTT3130451 directly replace the 1-1776491-3 in existing designs?

A: The OSTT3130451 shares the same 13-position count, 5.00mm pitch, horizontal mounting orientation, and through-hole configuration as the 1-1776491-3. Direct replacement is suitable for applications where current draw does not exceed 8 A and operating temperature remains within -30°C to 105°C. PCB footprints designed for the 1-1776491-3 are compatible with the OSTT3130451.

Q: What is the primary difference between OSTT3130451 and OSTT3190451?

A: The OSTT3130451 provides 13 positions per level, matching the original 1-1776491-3 configuration. The OSTT3190451 provides 19 positions per level on the same 5.00mm pitch. Both share identical electrical ratings (300 V, 8 A), wire termination method, and mounting characteristics. Selection depends on whether the design requires 13 or 19 connection points.

Q: Are there temperature limitations when substituting the 1-1776491-3?

A: The 1-1776491-3 operates from -55°C to 105°C. Both substitute parts (OSTT3130451 and OSTT3190451) operate from -30°C to 105°C. Applications requiring operation below -30°C are not suitable for these substitutes. Applications within the -30°C to 105°C range are fully compatible.

Q: What is the current rating difference between the main part and substitutes?

A: The 1-1776491-3 is rated at 10 A. Both substitute parts (OSTT3130451 and OSTT3190451) are rated at 8 A. Applications designed for 10 A operation require verification that actual current draw does not exceed 8 A when using substitute parts. Applications with current requirements of 8 A or less are fully compatible.

Q: Do the substitute parts support the same wire gauge range?

A: The 1-1776491-3 accepts 14-22 AWG wire. Both substitute parts accept 14-26 AWG wire, providing expanded wire gauge accommodation. Wires within the 14-22 AWG range are fully compatible with all three parts.

Q: What regulatory compliance do the substitute parts carry?

A: The 1-1776491-3 carries "Not applicable" RoHS status. Both substitute parts (OSTT3130451 and OSTT3190451) are ROHS3 compliant and REACH unaffected. Modern designs benefit from the regulatory compliance certifications of the active substitute products.

Q: Are the substitute parts available in the same packaging as the original?

A: The 1-1776491-3 packaging is listed as "-" (unspecified). Both substitute parts are supplied in bulk packaging. Packaging configuration should be verified with the supplier based on specific procurement requirements.