L717DFB25POL2RM8 D-Sub Connector Equivalent & Substitute Parts

Part Overview

The L717DFB25POL2RM8 is a 25-position D-Sub plug connector manufactured by Amphenol ICC (Commercial Products) in the DF series. This panel-mount, through-hole solder connector features male pins with a 2-row configuration in shell size 3 (DB, B) layout. The connector is rated for 7.5A at 300V and operates across a temperature range of -55°C to 155°C. With an active product status and RoHS compliance, this connector serves as a standard interface component in industrial and commercial applications.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative sourcing is required for cost optimization, or when design flexibility demands components with comparable electrical and mechanical characteristics. Substitutes must maintain compatibility across critical parameters including connector style, position count, mounting type, shell size, termination method, and electrical ratings.

Key Parameters

Parameter	L717DFB25POL2RM8 Specification
Connector Style	D-Sub
Connector Type	Plug, Male Pins
Number of Positions	25
Number of Rows	2
Shell Size, Connector Layout	3 (DB, B)
Mounting Type	Panel Mount, Through Hole
Termination	Solder
Current Rating (Amps)	7.5A
Voltage Rating	300V
Operating Temperature	-55°C ~ 155°C
Shell Material, Finish	Steel, Tin Plated
Contact Finish	Gold
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution logic for the L717DFB25POL2RM8 is based on the following critical parameters that must align across candidate parts:

Mandatory Matching Parameters:

Connector Style: D-Sub
Connector Type: Plug, Male Pins
Number of Positions: 25
Number of Rows: 2
Shell Size, Connector Layout: 3 (DB, B)
Termination: Solder
Material Flammability Rating: UL94 V-0

Electrical Compatibility Parameters:

Current Rating: Minimum 6.0A (substitute must support at least 6.0A; primary part rated 7.5A)
Voltage Rating: Minimum 100V (substitute must support at least 100V; primary part rated 300V)
Operating Temperature: Must encompass or overlap with -55°C to 155°C range

Mechanical Compatibility Parameters:

Mounting Type: Panel Mount, Through Hole (primary); substitutes with Through Hole mounting are acceptable
Contact Form: Machined or Stamped (both acceptable)
Flange Feature: Housing/Shell (Unthreaded) or Mating Side Female Screwlock (4-40) are acceptable variants

Compliance Parameters:

Material Flammability: UL94 V-0 (mandatory)
RoHS Status: RoHS Compliant or ROHS3 Compliant (acceptable)
Moisture Sensitivity Level: 1 (Unlimited) preferred

Substitutes are grouped by manufacturer and series to facilitate cross-reference selection. All listed substitutes maintain the core D-Sub 25-position plug configuration with solder termination and meet or exceed the primary electrical and mechanical requirements.

Parameter Comparison

Parameter	L717DFB25POL2RM8 (Amphenol ICC)	09643227210 (HARTING)	09653617713 (HARTING)	1-5745968-3 (TE Connectivity)	1-5745968-4 (TE Connectivity)	1-5745968-5 (TE Connectivity)	1-5745968-6 (TE Connectivity)	172-025-112R001 (NorComp)	172-E25-113R911 (NorComp)	2-338311-2 (TE Connectivity)	2-5747704-0 (TE Connectivity)
Connector Style	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub
Connector Type	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins
Number of Positions	25	25	25	25	25	25	25	25	25	25	25
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
Shell Size, Connector Layout	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)
Mounting Type	Panel Mount, Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Panel Mount, Through Hole	Panel Mount, Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Current Rating (Amps)	7.5A	7.5A	6.5A	6A	6A	6A	6A	5A	5A	6A	6A
Voltage Rating	300V	100V	Not Specified	125V	125V	125V	125V	Not Specified	Not Specified	125V	125V
Operating Temperature	-55°C ~ 155°C	-20°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-50°C ~ 100°C	-50°C ~ 100°C	-55°C ~ 105°C	-55°C ~ 105°C
Shell Material, Finish	Steel, Tin Plated	Steel	Steel	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Nickel Plated	Steel, Tin Plated	Steel, Tin Plated
Contact Finish	Gold	Not Specified	Not Specified	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active	Active	Obsolete	Active	Active	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Compliance):

The following parts are recommended as primary substitutes based on active product status, full RoHS compliance, and alignment with critical electrical and mechanical parameters:

TE Connectivity AMPLIMITE HD-20 Series (1-5745968-3, 1-5745968-4, 1-5745968-5, 1-5745968-6): These four variants from the AMPLIMITE HD-20 series maintain identical electrical specifications (6A current rating, 125V voltage rating, -55°C to 105°C operating temperature) and mechanical configuration. All feature steel tin-plated shells with gold-plated contacts, UL94 V-0 flammability rating, and ROHS3 compliance. The primary distinction among these variants is internal contact configuration. These parts are available in high inventory quantities (1,442 to 3,136 units) and represent the most direct substitutes for through-hole mounting applications.

TE Connectivity AMPLIMITE HDP-20 (2-338311-2): This part offers board-side M3 mounting with 6A current rating and 125V voltage rating. It features phosphor bronze contacts and glass-filled polyester dielectric material. ROHS3 compliance and UL94 V-0 rating are confirmed. This variant is suitable for applications requiring board-level mounting integration.

TE Connectivity AMPLIMITE HD-20 (2-5747704-0): This variant provides housing-side 4-40 mounting with 6A current rating and 125V voltage rating. It maintains steel tin-plated shell, brass contacts, and polyester dielectric. ROHS3 compliance and UL94 V-0 rating are confirmed. This part is available in high inventory (3,224 units).

Secondary Substitutes (Active Status, Reduced Electrical Ratings):

NorComp 172-E Series (172-E25-113R911): This active part features panel mount and through-hole mounting with board-side and mating-side 4-40 screwlock flanges. Current rating is 5A (lower than primary part), and operating temperature range is -50°C to 100°C. Steel nickel-plated shell with gold-plated machined contacts and polyamide (PA6T) nylon 6T dielectric. ROHS3 compliance and UL94 V-0 rating are confirmed. This part is suitable for applications with reduced current requirements and lower temperature extremes.

HARTING Variants (09643227210, 09653617713): Both HARTING parts maintain 25-position D-Sub plug configuration with solder termination and UL94 V-0 rating. Part 09643227210 offers 7.5A current rating and 100V voltage rating with through-hole mounting. Part 09653617713 provides 6.5A current rating with mating-side female screwlock (4-40) and through-hole mounting. Both are ROHS3 compliant and active products. Operating temperature ranges are -20°C to 125°C (09643227210) and -55°C to 125°C (09653617713).

Obsolete Status (Not Recommended for New Designs):

NorComp 172 Series (172-025-112R001): This part carries obsolete product status and is not recommended for new design implementations. Although it maintains panel mount and through-hole mounting with 5A current rating and UL94 V-0 rating, the obsolete designation indicates discontinued manufacturing and potential supply chain constraints.

Selection Criteria Summary:

For applications requiring full electrical compatibility with the L717DFB25POL2RM8 (7.5A, 300V, -55°C to 155°C), no direct equivalent exists among the listed substitutes. However, the TE Connectivity AMPLIMITE HD-20 series (1-5745968-3 through 1-5745968-6) and 2-5747704-0 provide the closest mechanical and compliance match with reduced electrical ratings (6A, 125V, -55°C to 105°C). These parts are suitable for applications operating within these reduced specifications.

For applications with lower current requirements (5A to 6.5A) and reduced voltage ratings (100V to 125V), the HARTING and NorComp 172-E variants provide additional options with active product status and ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q1: Can the TE Connectivity AMPLIMITE HD-20 series (1-5745968-3 through 1-5745968-6) be used as a direct replacement for the L717DFB25POL2RM8?

A: These parts are mechanically and functionally compatible for D-Sub 25-position plug applications with solder termination. However, electrical specifications differ: the AMPLIMITE HD-20 variants are rated for 6A at 125V with operating temperature range -55°C to 105°C, compared to the L717DFB25POL2RM8 rated for 7.5A at 300V with operating temperature range -55°C to 155°C. Substitution is acceptable only for applications operating within the reduced electrical and thermal specifications of the AMPLIMITE HD-20 series.

Q2: What is the difference between the four AMPLIMITE HD-20 variants (1-5745968-3, 1-5745968-4, 1-5745968-5, 1-5745968-6)?

A: All four variants share identical electrical specifications (6A, 125V, -55°C to 105°C), mechanical configuration (25-position D-Sub plug, solder termination, mating-side female screwlock 4-40), and material specifications (steel tin-plated shell, gold-plated contacts, polyester dielectric, UL94 V-0). The variants differ in internal contact configuration and REACH compliance status. Selection among these variants depends on specific contact requirements and regulatory compliance needs for the application.

Q3: Why does the L717DFB25POL2RM8 have panel mount capability while most substitutes only specify through-hole mounting?

A: The L717DFB25POL2RM8 features an unthreaded housing/shell flange designed for panel mount installation. Most substitute parts, particularly the TE Connectivity AMPLIMITE HD-20 series, feature mating-side female screwlock (4-40) or housing-side (4-40) flanges designed for through-hole board mounting. The NorComp 172 series and 172-E series maintain panel mount capability. For applications requiring panel mount installation, select from NorComp 172-025-112R001 (obsolete status) or 172-E25-113R911 (active status).

Q4: Are all listed substitute parts RoHS compliant?

A: Yes. All substitute parts listed carry either RoHS Compliant or ROHS3 Compliant designation. The primary part L717DFB25POL2RM8 is RoHS Compliant. ROHS3 Compliant parts meet the same environmental requirements and are acceptable substitutes from a compliance perspective.

Q5: What is the significance of the contact finish thickness specification (20.0µin / 0.51µm for the primary part)?

A: The L717DFB25POL2RM8 specifies 20.0µin (0.51µm) gold contact finish thickness. Most substitute parts specify "Flash" gold finish thickness, which is a thinner application. Flash finish provides adequate contact protection for standard signal applications but may not be suitable for high-reliability or high-cycle mating applications requiring thicker gold plating. For applications requiring specific contact finish thickness, verify substitute part specifications against application requirements.

Q6: Can the HARTING 09643227210 be used in place of the L717DFB25POL2RM8?

A: The HARTING 09643227210 maintains 25-position D-Sub plug configuration with solder termination and 7.5A current rating, matching the primary part's current specification. However, it is rated for 100V (compared to 300V for the primary part) and operates across -20°C to 125°C (compared to -55°C to 155°C for the primary part). Substitution is acceptable only for applications operating within these reduced electrical and thermal specifications.

Q7: Why is the NorComp 172-025-112R001 listed as obsolete?

A: The NorComp 172-025-112R001 carries obsolete product status, indicating discontinued manufacturing by the supplier. Obsolete parts present supply chain risk and are not recommended for new design implementations. Although this part maintains panel mount capability and UL94 V-0 compliance, the active NorComp 172-E25-113R911 is the recommended alternative for panel mount applications.

Q8: What mounting configuration differences exist among the substitute parts?

A: Mounting configurations vary across substitutes: The L717DFB25POL2RM8 features panel mount with unthreaded housing/shell flange. TE Connectivity AMPLIMITE HD-20 series (1-5745968-3 through 1-5745968-6) feature mating-side female screwlock (4-40) for through-hole board mounting. TE Connectivity 2-338311-2 features board-side M3 mounting. TE Connectivity 2-5747704-0 features housing-side (4-40) mounting. NorComp 172-E25-113R911 features both board-side (4-40) and mating-side female screwlock (4-40) for panel mount and through-hole applications. HARTING variants feature through-hole mounting only. Select substitutes based on specific mounting requirements of the application.

Q9: Are there inventory considerations when selecting substitute parts?

A: Yes. Inventory levels vary significantly across substitutes. The TE Connectivity AMPLIMITE HD-20 variant 1-5745968-4 has the highest inventory (3,136 units), followed by 2-5747704-0 (3,224 units). The primary part L717DFB25POL2RM8 has 760 units in stock. Lower inventory parts include NorComp 172-E25-113R911 (986 units) and HARTING 09643227210 (801 units). For applications requiring immediate availability or large-volume procurement, prioritize substitutes with higher inventory levels.

Q10: What is the difference between tin-plated and nickel-plated shell finishes?

A: The L717DFB25POL2RM8 features steel tin-plated shell finish. Most substitutes also feature tin-plated shells. The NorComp 172-E25-113R911 features steel nickel-plated shell finish. Tin plating provides good corrosion resistance and solderability. Nickel plating provides enhanced corrosion resistance and is suitable for harsh environmental conditions. Both finishes are acceptable for standard industrial applications. Selection depends on specific environmental exposure requirements.

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