L717HDB44POL2C309

Part Overview

The L717HDB44POL2C309 is a 44-position D-Sub High Density plug connector with male pins and vertical solder termination, manufactured by Amphenol ICC (Commercial Products). This connector is classified as an active product suitable for applications requiring high-density signal distribution in through-hole configurations. Alternative models become necessary when specific flange features, contact material specifications, or current rating requirements differ from the primary design, or when supply chain considerations require secondary sourcing options.

Substiute Parts

L717HDB44POL2C309

Amphenol ICC (Commercial Products)In Stock: 1023L717HDB44POL2C309 Datasheet

Current PartRFQ

10090928-P444VLF

Amphenol ICC (FCI)In Stock: 161110090928-P444VLF Datasheet

SimilarRFQ

10090928-P444XLF

Amphenol ICC (FCI)In Stock: 155610090928-P444XLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L717HDB44POL2C309 is determined by strict compatibility across the following key parameters: connector style (D-Sub High Density), number of positions (44), number of rows (3), connector type (Plug, Male Pins), shell size and layout (3 DB/B High Density), mounting type (Through Hole), and termination method (Solder). All identified substitute parts maintain these core electrical and mechanical specifications. However, differences exist in flange feature design, shell material finish, contact material composition, and current rating per contact, which must be evaluated against specific application requirements.

The two substitute parts identified, 10090928-P444VLF and 10090928-P444XLF, are both manufactured by Amphenol ICC (FCI division) and share identical core connector architecture with the primary part. Both substitutes incorporate Board Lock features in addition to Grounding Indents, and both utilize Nickel Plated steel shells with flash gold contact finish instead of the tin-plated shell and 30µin gold finish of the primary part.

Parameter Comparison

Engineering Selection Recommendations

Selection between L717HDB44POL2C309 and its substitutes 10090928-P444VLF or 10090928-P444XLF depends on flange design compatibility and current capacity requirements. The primary part features an unthreaded housing shell flange, while both substitutes incorporate board-side 4-40 threaded mounting with the P444VLF variant adding a mating-side female screwlock feature. This distinction is critical for mechanical mounting compatibility.

Current rating presents a secondary consideration: the L717HDB44POL2C309 is rated at 3A total, while substitutes are rated at 2.5A per contact. This difference must be evaluated against circuit requirements.

Contact material and finish specifications differ between the primary part (Brass with 30µin gold plating) and substitutes (Copper Alloy with flash gold finish). Shell material finish also differs (Tin Plated versus Nickel Plated).

All three parts maintain identical electrical and environmental specifications: 250V voltage rating, -55°C to 105°C operating temperature range, UL94 V-0 flammability rating, RoHS compliance, and MSL 1 moisture sensitivity level. All parts are active products with current inventory availability.

The choice between 10090928-P444VLF and 10090928-P444XLF depends on whether the application requires the mating-side female screwlock feature present in the P444VLF variant.

Frequently Asked Questions (FAQ)

Q: What determines whether 10090928-P444VLF or 10090928-P444XLF can be substituted for L717HDB44POL2C309?

A: Core electrical and mechanical compatibility is maintained across all three parts: 44-position D-Sub High Density configuration, three-row layout, through-hole solder termination, 250V voltage rating, and -55°C to 105°C operating temperature. The primary differences are flange mounting design and current rating per contact. Substitution eligibility depends on whether the application's mounting interface accepts the board-side 4-40 threaded flanges of the substitute parts, and whether the 2.5A per contact rating of the substitutes meets current requirements.

Q: How does the flange feature difference affect substitutability?

A: The L717HDB44POL2C309 features an unthreaded housing/shell flange design, while both substitute parts incorporate board-side 4-40 threaded mounting. This is a critical mechanical compatibility factor. If the PCB or backplane is designed for threaded flange mounting, substitution is appropriate. If the design requires the unthreaded flange configuration, substitution is not compatible.

Q: Do the contact material differences affect electrical performance?

A: Contact material composition differs between the primary part (Brass) and substitutes (Copper Alloy), with finish thickness also varying (30µin gold versus flash gold). Both contact finishes are gold and provide equivalent signal integrity across the 250V, 3A application envelope. Material selection should be based on application-specific requirements for corrosion resistance, electrical conductivity, and manufacturing process compatibility.

Q: What is the significance of the current rating difference?

A: The L717HDB44POL2C309 carries a 3A total current rating, while substitutes are rated at 2.5A per contact. The relationship between total connector current capacity and per-contact ratings depends on the number of simultaneously energized contacts. For applications requiring maximum current capacity, the primary part's 3A specification should be retained.

Q: Can 10090928-P444VLF and 10090928-P444XLF be used interchangeably?

A: Both parts are identical except for flange features. The P444VLF includes a mating-side female screwlock feature, while the P444XLF includes only the board-side 4-40 flange. Interchangeability depends on whether the mating connector interface requires the female screwlock feature.