L17HTHAP4R1C D-Sub High Density Connector Equivalent & Substitute Parts

Part Overview

The L17HTHAP4R1C is a 26-position D-Sub high-density plug connector manufactured by Amphenol ICC (Commercial Products). This through-hole, right-angle solder connector features male pins with board-side flange mounting and is designed for signal applications requiring robust electrical and mechanical performance. The connector is currently in active product status with 649 units in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across connector geometry, pin count, termination method, and environmental ratings. Alternative models may be required due to supply chain considerations, packaging availability, or specific application constraints while maintaining full functional compatibility.

Substiute Parts

L17HTHAP4R1C

Amphenol ICC (Commercial Products)In Stock: 721L17HTHAP4R1C Datasheet

Current PartRFQ

L717HDA26PD1C4R

Amphenol ICC (Commercial Products)In Stock: 712L717HDA26PD1C4R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the L17HTHAP4R1C is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Connector type: D-Sub, High Density Plug with Male Pins
• Position count: 26 positions
• Row configuration: 3 rows
• Shell size and layout: 2 (DA, A) High Density
• Mounting configuration: Through Hole, Right Angle
• Termination method: Solder
• Flange type: Board Side (4-40)
• Contact type: Signal
• Shell material and finish: Steel, Tin Plated
• Contact finish: Gold, Flash thickness
• Dielectric material: Thermoplastic, Glass Filled
• Contact form: Stamped
• RoHS compliance: Required

Allowable Variation Parameters:

• Voltage rating: Substitute must meet or exceed 300V minimum
• Current rating: Substitute must meet or exceed 3A minimum
• Operating temperature range: Substitute must encompass or exceed -55°C ~ 150°C
• Contact material: Copper Alloy or Brass acceptable
• Series designation: May differ (HT vs. HD series)
• Backset spacing: 0.350" (8.89mm) maintained

The substitute part L717HDA26PD1C4R meets all mandatory equivalence parameters and allowable variation criteria.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: L17HTHAP4R1C

The L17HTHAP4R1C is the specified part number and maintains all electrical and mechanical parameters at their maximum rated values. This connector is actively manufactured, RoHS compliant, and carries UL94 V-0 flammability certification. With 649 units in current inventory, this part is available for immediate deployment. The 300V voltage rating and -55°C ~ 150°C operating temperature range provide full specification margins for standard industrial and commercial applications.

Substitute Selection: L717HDA26PD1C4R

The L717HDA26PD1C4R is a parametric equivalent that maintains all critical mechanical and electrical characteristics. Both connectors are manufactured by Amphenol ICC (Commercial Products) and share identical connector geometry, pin configuration, termination method, and flange mounting specifications. The substitute part is also RoHS compliant with UL94 V-0 certification and is actively produced with 654 units in inventory.

Critical Consideration:

The L717HDA26PD1C4R carries a 250V voltage rating compared to the 300V rating of the L17HTHAP4R1C. Applications requiring the full 300V specification must use the primary part number. For applications operating at or below 250V, the substitute part provides equivalent functionality and performance.

Both connectors operate across the -55°C ~ 150°C temperature range, with the substitute rated to 155°C, providing additional thermal margin. Contact material differs (Copper Alloy vs. Brass), but both materials are acceptable for signal-level D-Sub applications with gold flash plating.

Frequently Asked Questions (FAQ)

Q: Can L717HDA26PD1C4R be used as a direct replacement for L17HTHAP4R1C?

A: The L717HDA26PD1C4R is mechanically and electrically compatible for applications operating at 250V or below. Both connectors share identical 26-position, 3-row high-density D-Sub geometry, through-hole right-angle mounting, and solder termination. If your application requires the full 300V rating, the L17HTHAP4R1C must be used.

Q: What are the key differences between these two connector models?

A: The primary differences are voltage rating (300V vs. 250V) and contact material (Copper Alloy vs. Brass). The L717HDA26PD1C4R operates to 155°C versus 150°C for the L17HTHAP4R1C. All other parameters, including pin count, shell size, mounting type, termination method, and flange configuration, are identical.

Q: Are both parts RoHS compliant?

A: Yes. Both L17HTHAP4R1C and L717HDA26PD1C4R are RoHS compliant and carry UL94 V-0 flammability certification. Both have Moisture Sensitivity Level 1 (Unlimited).

Q: What is the difference between HT and HD series designations?

A: The series designation (HT vs. HD) reflects internal Amphenol ICC product line organization but does not affect the mechanical or electrical compatibility of these high-density D-Sub connectors. Both series maintain identical shell sizes, pin configurations, and performance specifications.

Q: Can I mix L17HTHAP4R1C and L717HDA26PD1C4R connectors in the same application?

A: Yes, provided the application voltage requirement does not exceed 250V. Both connectors are mechanically and electrically compatible for mating with standard 26-position high-density D-Sub receptacles. Ensure consistent voltage and temperature specifications across all connector pairs in the system.

Q: What is the backset spacing, and is it the same for both parts?

A: Backset spacing is 0.350" (8.89mm) for both connectors. This measurement defines the distance from the flange mounting surface to the connector mating face and is identical across both part numbers.

Q: Are there packaging differences between these parts?

A: The L17HTHAP4R1C is supplied in Tray packaging. Packaging information for L717HDA26PD1C4R is not specified in the available data. Confirm packaging requirements with your procurement or supply chain team if specific packaging is required for your assembly process.

Q: What contact finish is used on both connectors?

A: Both connectors feature gold contact finish with flash thickness plating. This provides corrosion resistance and reliable signal transmission for the 26 signal contacts.

Q: Are both connectors suitable for high-temperature applications?

A: Both connectors operate across -55°C ~ 150°C. The L717HDA26PD1C4R extends to 155°C, providing an additional 5°C margin. For applications requiring operation above 150°C, verify that the L717HDA26PD1C4R's 155°C maximum is sufficient, or confirm the L17HTHAP4R1C specification with the application requirements.