Equivalent & Substitute Parts for 55508-312LF

Part Overview

The Amphenol ICC 55508-312LF is a 12-position receptacle connector with 0.079" (2.00mm) pitch, designed for surface mount board-to-board applications. This connector features gold-plated mating contacts, push-pull fastening, and operates across the industrial temperature range of -55°C to 125°C. The part is currently active in inventory with 768 pieces available.

Substitute parts are necessary when the original manufacturer part becomes unavailable, when alternative packaging formats are required for production processes, or when design specifications allow for compatible alternatives that offer improved availability or performance characteristics within the same electrical and mechanical parameters.

Substiute Parts

55508-312LF

Amphenol ICC (FCI)In Stock: 80655508-312LF Datasheet

Current PartRFQ

CLT-106-02-F-D-P-TR

Samtec Inc.In Stock: 3996CLT-106-02-F-D-P-TR Datasheet

MFR RecommendedRFQ

CLT-106-02-G-D

Samtec Inc.In Stock: 1017CLT-106-02-G-D Datasheet

MFR RecommendedRFQ

CLT-106-02-L-D

Samtec Inc.In Stock: 1204CLT-106-02-L-D Datasheet

MFR RecommendedRFQ

CLT-106-02-L-D-A-P-TR

Samtec Inc.In Stock: 1736CLT-106-02-L-D-A-P-TR Datasheet

MFR RecommendedRFQ

CLT-106-02-L-D-P-TR

Samtec Inc.In Stock: 1948CLT-106-02-L-D-P-TR Datasheet

MFR RecommendedRFQ

TLE-106-01-G-DV

Samtec Inc.In Stock: 1261TLE-106-01-G-DV Datasheet

MFR RecommendedRFQ

TLE-106-01-G-DV-P-TR

Samtec Inc.In Stock: 2863TLE-106-01-G-DV-P-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 55508-312LF is determined by strict alignment with the following core parameters:

Mandatory Matching Parameters:

• Connector Type: Receptacle
• Number of Positions: 12
• Pitch - Mating: 0.079" (2.00mm)
• Number of Rows: 2
• Row Spacing - Mating: 0.079" (2.00mm)
• Mounting Type: Surface Mount
• Fastening Type: Push-Pull
• Contact Type: Female Socket
• Style: Board to Board
• Operating Temperature Range: -55°C to 125°C
• Material Flammability Rating: UL94 V-0

Allowable Variations:

• Contact Finish - Mating: Gold (all substitutes maintain gold plating)
• Contact Finish Thickness - Mating: Variations permitted (15.0µin to 10.0µin)
• Insulation Height: Variations permitted (0.091" to 0.083" for standard CLT series; 0.177" for TLE pass-through variant)
• Insulation Material: Plastic (55508-312LF) to Liquid Crystal Polymer (LCP) substitutes
• Current Rating: Variations permitted (2A to 4.1A per contact)
• Packaging Format: Tube, Tape & Reel (TR), or Cut Tape (CT)
• Product Status: Active or Discontinued at DiGi Electronics

All substitute parts listed maintain electrical and mechanical compatibility within the specified parameter tolerances for this connector category.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute (Recommended): CLT-106-02-F-D-P-TR (Samtec Inc.) is the primary recommended substitute. This part maintains full electrical and mechanical compatibility with the 55508-312LF while offering superior current rating (4.1A per contact versus 2A) and is actively stocked with 3,893 pieces available. The Tape & Reel packaging format supports automated assembly processes. ROHS3 compliance and REACH unaffected status confirm regulatory alignment.

Secondary Substitutes (Active Status):

• CLT-106-02-G-D: Active status with 954 pieces in stock. Tube packaging. Gold post finish provides enhanced durability. Suitable for applications requiring extended contact longevity.
• CLT-106-02-L-D-A-P-TR: Active status with 1,636 pieces in stock. Includes board guide feature and pick-and-place compatibility. Tape & Reel format.
• CLT-106-02-L-D-P-TR: Active status with 1,898 pieces in stock. Pick-and-place compatible. Tape & Reel format. Highest inventory availability among CLT series.

Specialized Substitute (Pass-Through Configuration): TLE-106-01-G-DV-P-TR (Samtec Inc.) is a pass-through receptacle variant suitable for board-to-board or cable applications. This part features increased insulation height (0.177" versus 0.083") and is actively stocked with 2,826 pieces. Current rating is 3.2A per contact. Use this variant only when pass-through functionality is required by the application design.

Discontinued Parts (Not Recommended for New Designs): CLT-106-02-L-D and TLE-106-01-G-DV are discontinued at DiGi Electronics. While inventory remains available (1,159 and 1,187 pieces respectively), these parts should not be selected for new product designs due to long-term supply uncertainty.

All substitute parts maintain the mandatory electrical and mechanical parameters: 12-position, 0.079" pitch, 2-row configuration, surface mount, push-pull fastening, gold mating contacts, and -55°C to 125°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can CLT-106-02-F-D-P-TR be used as a direct replacement for 55508-312LF?

A: Yes. Both connectors share identical pitch (0.079"), position count (12), row configuration (2), mounting type (surface mount), and fastening mechanism (push-pull). Operating temperature range, contact material, and contact finish are equivalent. The CLT variant offers higher current rating (4.1A per contact) and improved insulation material (LCP). Tape & Reel packaging differs from the original Tube format but maintains electrical compatibility.

Q: What is the difference between CLT-106-02-L-D-A-P-TR and CLT-106-02-L-D-P-TR?

A: Both parts are electrically and mechanically identical with matching pitch, position count, row spacing, and operating temperature. The primary difference is the inclusion of a board guide feature in the CLT-106-02-L-D-A-P-TR variant. Both are supplied in Tape & Reel format and support pick-and-place assembly. Selection depends on whether board guide functionality is required for the application.

Q: Why does TLE-106-01-G-DV-P-TR have a different insulation height?

A: The TLE-106-01-G-DV-P-TR is a pass-through receptacle connector designed for board-to-board or cable applications, requiring increased insulation height (0.177" versus 0.083") to accommodate the extended contact structure. This variant is not a direct replacement for standard board-to-board applications but is suitable when pass-through functionality is specified in the design.

Q: Are all substitute parts RoHS compliant?

A: Yes. All Samtec substitute parts listed carry ROHS3 compliance certification. The original 55508-312LF is RoHS Compliant. All parts meet current regulatory requirements for hazardous substance restrictions.

Q: What packaging formats are available for substitutes?

A: Substitute parts are available in three packaging formats: Tube (CLT-106-02-G-D), Tape & Reel (CLT-106-02-F-D-P-TR, CLT-106-02-L-D-A-P-TR, CLT-106-02-L-D-P-TR), and Cut Tape (TLE-106-01-G-DV-P-TR). Tape & Reel format is optimized for automated pick-and-place assembly. Tube format is suitable for manual assembly or lower-volume applications. Cut Tape format provides intermediate volume handling.

Q: Can the higher current rating of CLT series substitutes affect circuit design?

A: The CLT series substitutes (4.1A per contact) have higher current ratings than the original 55508-312LF (2A). This represents an improvement in current-carrying capacity and does not negatively affect circuit design. Existing designs rated for 2A operation remain fully compatible. Applications requiring higher current density benefit from the increased rating.

Q: What is the significance of contact finish thickness variations?

A: Contact finish thickness variations (15.0µin for 55508-312LF versus 3.00µin to 10.0µin for substitutes) reflect different manufacturing specifications. All thicknesses provide adequate gold plating for mating contact durability and electrical conductivity. Thinner plating in substitutes is within industry standards and does not compromise connector performance within the specified operating parameters.

Q: Should discontinued parts be used in new product designs?

A: No. CLT-106-02-L-D and TLE-106-01-G-DV are discontinued at DiGi Electronics and should not be selected for new product designs. While current inventory exists, long-term supply availability cannot be assured. Active status parts (CLT-106-02-F-D-P-TR, CLT-106-02-G-D, CLT-106-02-L-D-A-P-TR, CLT-106-02-L-D-P-TR, TLE-106-01-G-DV-P-TR) are recommended for new designs.