TE Connectivity AMP Connectors 1-1776555-2 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1-1776555-2 is a 12-position wire-to-board terminal block with vertical board mounting and 5.00mm pitch spacing. This component features screw-leaf spring wire termination with integrated wire guard and interlocking side features for secure connections. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional compatibility within specified electrical and mechanical parameters.

Substiute Parts

1-1776555-2

TE Connectivity AMP ConnectorsIn Stock: 8361-1776555-2 Datasheet

Current PartRFQ

OSTT3110453

On Shore Technology Inc.In Stock: 1212OSTT3110453 Datasheet

SimilarRFQ

OSTTB120161

On Shore Technology Inc.In Stock: 964OSTTB120161 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1-1776555-2 is determined by the following critical parameters: 12-position configuration, 5.00mm pitch spacing, vertical board mounting orientation, through-hole installation method, and screw-leaf spring wire termination with wire guard. The substitute parts must maintain these core mechanical and functional characteristics to ensure direct replacement capability.

Current rating, voltage rating, and operating temperature range establish the electrical performance envelope. Wire gauge compatibility and housing material composition define the physical and thermal characteristics. Contact material plating and clamp material specifications determine signal integrity and corrosion resistance.

The following substitute parts satisfy these substitution criteria:

• OSTTB120161 (On Shore Technology Inc.): Matches all critical mechanical parameters with 12 positions, 5.00mm pitch, vertical board mounting, and screw-leaf spring termination. Exceeds current rating at 16 A and maintains voltage compatibility at 250 V minimum.

• OSTT3110453 (On Shore Technology Inc.): Provides functional equivalence with 11-position configuration and identical pitch, mounting, and termination characteristics. Represents a reduced-position alternative where circuit design permits single-position reduction.

Parameter Comparison

Engineering Selection Recommendations

OSTTB120161 is the primary substitute for direct replacement of the 1-1776555-2. This part maintains identical position count (12), pitch spacing (5.00mm), and wire gauge range (14-22 AWG). The OSTTB120161 is classified as active product status with ROHS3 compliance and REACH unaffected designation, ensuring regulatory alignment for new designs and production continuity. The current rating of 16 A exceeds the original 10 A specification, providing design margin. The minimum voltage rating of 250 V is acceptable for applications rated at 300 V or below. Operating temperature range of -30°C to 105°C covers standard industrial applications, though designs requiring -55°C minimum temperature operation require thermal analysis.

OSTT3110453 serves as an alternative where circuit design accommodates an 11-position configuration. This part maintains full compatibility with pitch, mounting, and termination characteristics. The 8 A current rating is lower than the original specification and requires load analysis to confirm suitability. ROHS3 compliance and REACH unaffected status provide regulatory compliance equivalent to OSTTB120161.

Selection between OSTTB120161 and OSTT3110453 depends on circuit requirements for position count and current capacity. Both substitute parts provide active product status and modern regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can OSTTB120161 directly replace the 1-1776555-2 in existing designs?

A: OSTTB120161 provides direct mechanical and functional replacement for applications operating within -30°C to 105°C temperature range and 250 V maximum voltage. The 12-position configuration, 5.00mm pitch, vertical board mounting, and screw-leaf spring termination are identical. The 16 A current rating exceeds the original 10 A specification. Designs requiring -55°C minimum temperature operation require thermal performance verification.

Q: What is the primary difference between OSTTB120161 and OSTT3110453?

A: OSTTB120161 maintains the 12-position configuration of the original part, while OSTT3110453 provides 11 positions. OSTTB120161 supports 16 A current capacity compared to 8 A for OSTT3110453. Both parts share identical pitch spacing, mounting orientation, and wire termination method. Selection depends on circuit requirements for position count and current handling.

Q: Are the substitute parts RoHS and REACH compliant?

A: Both OSTTB120161 and OSTT3110453 are ROHS3 compliant and REACH unaffected. The original 1-1776555-2 has undefined REACH status and not applicable RoHS status. The substitute parts meet current regulatory requirements for new production and design implementations.

Q: What wire gauge range is supported by each substitute part?

A: OSTTB120161 supports 14-22 AWG, matching the original 1-1776555-2 specification. OSTT3110453 supports 14-26 AWG, providing extended wire gauge compatibility. Both parts accommodate standard industrial wire sizes within their specified ranges.

Q: How do the operating temperature ranges compare?

A: The original 1-1776555-2 operates from -55°C to 105°C. Both substitute parts operate from -30°C to 105°C. Applications requiring operation below -30°C require alternative component selection or thermal analysis to confirm performance.

Q: What are the voltage rating differences?

A: The original 1-1776555-2 is rated at 300 V. OSTTB120161 is rated at 250 V, and OSTT3110453 is rated at 300 V. OSTTB120161 is suitable for applications operating at 250 V or below. OSTT3110453 maintains the original 300 V rating.

Q: Are the screw specifications identical across all three parts?

A: The original 1-1776555-2 uses M2.6 screws with 0.51 Nm torque specification. OSTTB120161 and OSTT3110453 use M2.5 and M3 screws respectively, with 0.3 Nm torque specification. Installation procedures must follow manufacturer-specific torque requirements for each part.