Amphenol ICC 55720-001 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 55720-001 is a 296-position differential pair array connector designed for high-density signal transmission applications. This male surface mount connector operates within the GIG-Array® and MezzSelect™ series, featuring gold or gold GXT™ contact finishes. The part is currently active in production with 767 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and compliance requirements across different manufacturing standards and regulatory frameworks.

Substiute Parts

55720-001

Amphenol ICC (FCI)In Stock: 81255720-001 Datasheet

Current PartRFQ

55720-001LF

Amphenol ICC (FCI)In Stock: 74055720-001LF Datasheet

DirectRFQ

6-1761616-0

TE Connectivity AMP ConnectorsIn Stock: 9086-1761616-0 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 55720-001 is determined by the following critical parameters: connector type (differential pair array, male), position count (296 signal / 148 pair), pitch (0.051" / 1.30mm), row configuration (18 rows), and surface mount mounting type. Parts meeting these core electrical and mechanical specifications are classified as direct substitutes or manufacturer-recommended alternatives.

The 55720-001LF variant maintains identical electrical and mechanical specifications while offering improved regulatory compliance (RoHS Compliant vs. non-compliant). The TE Connectivity 6-1761616-0 (STEP-Z series) provides equivalent functional performance with minor dimensional variance in height above board (0.431" vs. 0.380") and expanded mated stacking height options (15mm, 21mm, 25mm).

Parameter Comparison

Engineering Selection Recommendations

55720-001LF is the direct equivalent for applications requiring RoHS compliance. This variant maintains identical electrical and mechanical specifications while satisfying RoHS Compliant regulatory requirements. Selection is appropriate when procurement standards mandate lead-free or restricted substance compliance.

6-1761616-0 (TE Connectivity STEP-Z series) serves as a manufacturer-recommended alternative for designs tolerating the specified dimensional variance. The 0.051" (0.51mm) increase in height above board and the additional 21mm mated stacking height option provide design flexibility for specific form factor requirements. This part meets ROHS3 Compliant standards and is suitable for applications where cross-manufacturer qualification is acceptable.

Selection between these options depends on regulatory compliance mandates, available inventory, and mechanical envelope constraints within the target application.

Frequently Asked Questions (FAQ)

Q: Can 55720-001LF be used as a direct replacement for 55720-001?

A: Yes. The 55720-001LF maintains identical electrical and mechanical specifications. The primary distinction is RoHS compliance status. Selection should be based on regulatory requirements for the end application.

Q: What is the key dimensional difference between 55720-001 and 6-1761616-0?

A: The height above board differs by 0.051" (0.51mm): 55720-001 measures 0.380" (9.64mm) while 6-1761616-0 measures 0.431" (10.95mm). This variance must be evaluated against available PCB clearance and enclosure constraints.

Q: Are all three parts compatible with the same mating connector?

A: Compatibility is determined by mating connector specifications. All three parts share identical pitch (0.051" / 1.30mm), row count (18), and position count (296 signal / 148 pair). Verify mating connector documentation for stacking height and height above board requirements.

Q: What does MSL 1 (Unlimited) mean for these connectors?

A: MSL 1 indicates the lowest moisture sensitivity level. These parts do not require special moisture control during storage, handling, or assembly, providing maximum flexibility in manufacturing environments.

Q: Which part should be selected for new designs?

A: Selection depends on regulatory framework and compliance requirements. For RoHS-mandated applications, use 55720-001LF. For cross-manufacturer qualification or specific form factor needs, evaluate 6-1761616-0. Verify all specifications against design requirements before final selection.