L17H1220121 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC L17H1220121 is a 9-position D-Sub stacked receptacle connector with right-angle solder termination, designed for signal applications requiring shielded, board-locked configurations. This connector is actively produced and RoHS compliant, making it suitable for industrial and commercial applications operating across -55°C to 105°C temperature ranges. Substitute parts are identified based on matching electrical performance, mechanical interface compatibility, and termination method to ensure direct replacement capability in circuit board assemblies.

Substiute Parts

L17H1220121

Amphenol ICC (Commercial Products)In Stock: 1028L17H1220121 Datasheet

Current PartRFQ

L17H1220131

Amphenol ICC (Commercial Products)In Stock: 960L17H1220131 Datasheet

Parametric EquivalentRFQ

L17H2220131

Amphenol ICC (Commercial Products)In Stock: 1274L17H2220131 Datasheet

Parametric EquivalentRFQ

189-009-513R491

NorComp Inc.In Stock: 1415189-009-513R491 Datasheet

SimilarRFQ

189-009-513R691

NorComp Inc.In Stock: 1737189-009-513R691 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are classified into two categories based on parametric equivalence and compatibility:

Parametric Equivalent Parts (Amphenol ICC Series 17H):

• L17H1220131
• L17H2220131

These parts maintain identical electrical specifications (3A current rating, 250V voltage rating), mechanical dimensions (0.318" backset spacing), connector configuration (9-position D-Sub stacked receptacle), and termination method (solder). The primary difference is the base product number designation within the Series 17H family, indicating minor variant classifications that do not affect functional interchangeability. Both parts are produced by the same manufacturer and share RoHS compliance and UL94 V-0 flammability rating.

Similar Substitute Parts (NorComp Inc. Series 189):

• 189-009-513R491
• 189-009-513R691

These connectors provide functional substitution with identified parameter variations. Both maintain the D-Sub stacked receptacle configuration, 9-position layout, 0.318" backset spacing, and solder termination. Key differences include: current rating elevated to 5A (versus 3A), shell material finish changed from tin-plated steel to nickel-plated steel, dielectric material specified as Polyamide (PA9T) Nylon 9T (versus glass-filled thermoplastic), and flange feature specified as housing/shell rather than mating-side female screwlock. These parts are ROHS3 compliant and suitable for applications where higher current capacity or alternative material specifications are acceptable.

Parameter Comparison

Engineering Selection Recommendations

Amphenol ICC L17H1220131 and L17H2220131 are preferred substitutes when direct parametric equivalence is required. Both connectors maintain identical electrical performance (3A/250V), mechanical dimensions, and manufacturing specifications as the main part L17H1220121. Selection between L17H1220131 and L17H2220131 depends on internal product classification within the Series 17H family; both are actively produced with RoHS compliance and UL94 V-0 certification.

NorComp Inc. 189-009-513R491 and 189-009-513R691 are suitable as alternative substitutes for applications where increased current capacity (5A) is beneficial or where alternative dielectric materials and shell finishes are acceptable. Both NorComp parts maintain critical mechanical compatibility (9-position D-Sub stacked receptacle with identical backset spacing) and terminate via solder to PCB. The primary design considerations for these alternatives include the elevated current rating, nickel-plated steel finish, and Polyamide (PA9T) dielectric material. Both maintain UL94 V-0 flammability rating and are ROHS3 compliant. Selection of NorComp alternatives is appropriate when existing PCB footprints accommodate panel-mount through-hole configurations and material specifications align with application requirements.

Frequently Asked Questions (FAQ)

Q: Can L17H1220131 or L17H2220131 be used as direct replacements for L17H1220121? A: Yes. Both Amphenol ICC parts maintain identical electrical specifications (3A current rating, 250V voltage rating), mechanical dimensions (9-position layout, 0.318" backset spacing), shell configuration, and solder termination. These are parametric equivalents within the same manufacturer series.

Q: What are the key differences between Amphenol ICC and NorComp substitutes? A: Amphenol ICC parts (L17H1220131, L17H2220131) provide direct parametric equivalence with 3A current rating and tin-plated steel shell finish. NorComp parts (189-009-513R491, 189-009-513R691) offer 5A current rating with nickel-plated steel shell finish and Polyamide (PA9T) dielectric material. Both maintain identical backset spacing (0.318") and solder termination required for PCB compatibility.

Q: Are the NorComp alternatives compatible with existing PCB designs for the L17H1220121? A: NorComp parts maintain identical mechanical pin spacing (0.318" backset) and solder termination, making them compatible with existing PCB footprints designed for right-angle D-Sub stacked receptacles. The NorComp series supports both through-hole and panel-mount configurations, offering design flexibility.

Q: What compliance certifications apply to substitute parts? A: All Amphenol ICC parts (L17H1220121, L17H1220131, L17H2220131) are RoHS compliant and rated UL94 V-0. NorComp parts (189-009-513R491, 189-009-513R691) are ROHS3 compliant and rated UL94 V-0, with REACH unaffected status.

Q: Does shell finish difference (tin-plated vs. nickel-plated) affect interchangeability? A: Both finishes provide corrosion resistance and contact reliability appropriate for signal applications. Selection depends on application environment and specific material compatibility requirements. Tin-plated finishes (Amphenol ICC) and nickel-plated finishes (NorComp) maintain equivalent electrical performance for solder-terminated connectors.

Q: Is the higher current rating (5A) of NorComp parts a requirement for substitution? A: The 5A rating of NorComp parts (189-009-513R491, 189-009-513R691) is a design improvement that does not limit their use in 3A applications. Parts with higher current ratings are acceptable substitutes for lower-rated designs. However, voltage rating data is not specified for NorComp parts in available documentation.

Q: What packaging format do all substitute parts use? A: All substitute parts listed are supplied in tray packaging, matching the packaging configuration of the main part L17H1220121.