Amphenol ICC 55508-340LF Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 55508-340LF is a 40-position receptacle connector in the Minitek® 2.00mm series, designed for surface mount board-to-board applications. This connector features a 0.079" (2.00mm) pitch, dual-row configuration, and gold-plated mating contacts rated for 2A per contact at 200V. The part is active in production with RoHS compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified based on matching electrical and mechanical parameters: connector type (receptacle), contact configuration (40 positions, dual row, 2.00mm pitch), mounting method (surface mount), termination (solder), and operating temperature range (-55°C to 125°C). Substitutes may vary in insulation material, contact finish specifications, and connector style while maintaining functional compatibility.

Substiute Parts

55508-340LF

Amphenol ICC (FCI)In Stock: 103855508-340LF Datasheet

Current PartRFQ

CLT-120-02-G-D

Samtec Inc.In Stock: 807CLT-120-02-G-D Datasheet

MFR RecommendedRFQ

CLT-120-02-L-D

Samtec Inc.In Stock: 1077CLT-120-02-L-D Datasheet

MFR RecommendedRFQ

CLT-120-02-L-D-A-P

Samtec Inc.In Stock: 874CLT-120-02-L-D-A-P Datasheet

MFR RecommendedRFQ

TLE-120-01-G-DV-A-K

Samtec Inc.In Stock: 1321TLE-120-01-G-DV-A-K Datasheet

MFR RecommendedRFQ

TLE-120-01-G-DV-P-TR

Samtec Inc.In Stock: 2168TLE-120-01-G-DV-P-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 55508-340LF are qualified based on the following critical parameters that determine functional interchangeability:

Primary Matching Criteria:

• Connector type: Receptacle with female socket contacts
• Position count and configuration: 40 positions in dual-row arrangement
• Pitch specification: 0.079" (2.00mm) mating pitch and row spacing
• Mounting method: Surface mount with solder termination
• Fastening mechanism: Push-pull engagement
• Operating temperature range: -55°C to 125°C minimum
• Contact material: Phosphor bronze with gold mating finish
• Insulation color: Black

Allowed Variations in Substitutes:

• Insulation material: Original uses plastic; substitutes may use Liquid Crystal Polymer (LCP)
• Insulation height: Original 0.091" (2.30mm); substitutes range from 0.083" (2.10mm) to 0.177" (4.50mm)
• Contact finish thickness - mating: Original 15.0µin (0.38µm); substitutes 10.0µin (0.25µm)
• Contact finish - post: Original tin; substitutes may be gold or tin
• Current rating: Original 2A; substitutes rated 3.2A to 4.1A per contact
• Connector style: Original board-to-board; TLE series allows board-to-board or cable
• Packaging: Original tube; substitutes available in tube or tape & reel

The Samtec CLT and TLE series connectors meet all primary matching criteria and are qualified as direct substitutes for the 55508-340LF.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active products with current manufacturing status and full RoHS3 compliance, ensuring regulatory alignment with modern component sourcing requirements.

CLT Series Selection (CLT-120-02-G-D, CLT-120-02-L-D, CLT-120-02-L-D-A-P): The CLT series provides direct board-to-board substitution with reduced insulation height (0.083" vs. 0.091"), lower mating contact finish thickness (10.0µin vs. 15.0µin), and higher current capacity (4.1A vs. 2A per contact). These characteristics support applications requiring improved thermal performance or higher signal integrity. The CLT-120-02-L-D-A-P variant includes board guide and pick-and-place features for automated assembly optimization.

TLE Series Selection (TLE-120-01-G-DV-A-K, TLE-120-01-G-DV-P-TR): The TLE series offers pass-through receptacle functionality, enabling board-to-board or cable interconnection flexibility. The increased insulation height (0.177" vs. 0.091") accommodates applications requiring extended mating depth or stacking configurations. Current rating of 3.2A per contact exceeds the original 2A specification. The TLE-120-01-G-DV-P-TR variant in tape & reel packaging supports high-volume automated assembly workflows.

Compliance and Certification: All substitutes maintain UL94 V-0 flammability rating (where specified), REACH compliance status, and EAR99 export classification matching the original part. MSL 1 (unlimited) moisture sensitivity rating ensures compatibility with standard PCB assembly processes without additional drying requirements.

Frequently Asked Questions (FAQ)

Q: Can CLT-120-02-L-D replace 55508-340LF in existing designs without PCB layout modification?

A: The CLT-120-02-L-D maintains identical mating pitch (0.079" / 2.00mm), row spacing, and footprint dimensions. However, the reduced insulation height (0.083" vs. 0.091") may affect clearance to adjacent components or solder mask relief patterns. Verify PCB layout clearances before substitution.

Q: What is the functional difference between CLT and TLE series substitutes?

A: CLT series connectors are standard board-to-board receptacles with 0.083" insulation height. TLE series connectors are pass-through receptacles with 0.177" insulation height, supporting both board-to-board and cable interconnection applications. TLE connectors provide greater mating depth flexibility for stacked or extended configurations.

Q: Are the higher current ratings of substitute parts (3.2A to 4.1A) backward compatible with 2A circuit designs?

A: Yes. Higher current ratings indicate greater contact capacity and do not affect circuit operation at lower current levels. Designs operating at 2A or below function identically with substitute parts rated for 3.2A or 4.1A per contact.

Q: Does the change from plastic to Liquid Crystal Polymer (LCP) insulation affect thermal or electrical performance?

A: LCP insulation material provides improved dimensional stability and higher temperature performance compared to standard plastic. This substitution does not degrade electrical performance and supports the same -55°C to 125°C operating range. LCP material is suitable for applications requiring enhanced mechanical stability during thermal cycling.

Q: What is the significance of contact finish thickness variation (15.0µin vs. 10.0µin)?

A: Both specifications provide adequate gold plating for mating contact durability and corrosion resistance. The 10.0µin thickness in substitute parts meets industry standards for 2.00mm pitch connectors and supports equivalent mating cycle life and contact resistance performance.

Q: Is the TLE-120-01-G-DV-P-TR tape & reel packaging compatible with pick-and-place assembly equipment?

A: Yes. Tape & reel packaging is standard for automated surface mount assembly. The TLE-120-01-G-DV-P-TR is formatted for standard 8mm or 12mm tape widths and supports high-speed placement equipment. Verify equipment compatibility with connector dimensions and tape specifications.

Q: Can CLT-120-02-L-D-A-P board guide feature improve assembly yield?

A: The integrated board guide and pick-and-place features in CLT-120-02-L-D-A-P support automated placement accuracy and reduce assembly errors. This variant is recommended for high-volume production environments where placement precision and throughput are critical.