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L717DFB25PT D-Sub Connector Equivalent and Substitute Parts
Part Overview
The L717DFB25PT 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 in a 2-row, 3-position (DB/B) shell size configuration. The part is actively produced and available in inventory (773 pcs). Finding substitute parts is necessary to ensure design flexibility, address potential supply chain constraints, and identify compatible alternatives from multiple manufacturers that meet the same electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | L717DFB25PT Value |
|---|---|
| Connector Type | D-Sub 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 | 7.5A |
| Voltage Rating | 300V |
| Operating Temperature Range | -55°C to 125°C |
| Shell Material Finish | Steel, Tin Plated |
| Contact Material | Brass |
| Contact Finish | Gold |
| Flange Feature | Housing/Shell (Unthreaded) |
| Material Flammability Rating | UL94 V-0 |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility is determined by strict conformance to the following core parameters:
Critical Parameters (Must Match):
- Connector Type: D-Sub Plug, Male Pins
- Number of Positions: 25
- Number of Rows: 2
- Shell Size / Connector Layout: 3 (DB, B)
- Termination Method: Solder
- Material Flammability Rating: UL94 V-0
Compatible Parameter Ranges (Allowed Variation):
- Current Rating: Must meet or exceed 7.5A (L717DFB25PT specification); lower ratings indicate reduced electrical capability
- Voltage Rating: Must meet or exceed 300V (L717DFB25PT specification); lower ratings may not provide equivalent electrical isolation
- Operating Temperature Range: Must encompass at least -55°C to 125°C or provide equivalent thermal operation
- Shell Material and Finish: Variations permitted (steel with different plating, alternative finishes) if electrical and mechanical function is preserved
- Contact Material and Finish: Variations permitted if conductivity and corrosion resistance are maintained
- Flange Feature: Panel Mount alternatives with different mechanical features (screwlock, board lock) are acceptable for panel-mount applications
Substitute parts identified in this reference meet the critical parameters and maintain electrical equivalence within the allowed parameter variations. All substitute parts are active or verified inventory status with appropriate compliance certifications.
Parameter Comparison
| Parameter | L717DFB25PT (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 Inc.) |
172-E25-113R911 (NorComp Inc.) |
2-338311-2 (TE Connectivity) |
2-5747704-0 (TE Connectivity) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Connector Type | D-Sub Plug, Male Pins | D-Sub Plug, Male Pins | D-Sub Plug, Male Pins | D-Sub Plug, Male Pins | D-Sub Plug, Male Pins | D-Sub Plug, Male Pins | D-Sub Plug, Male Pins | D-Sub Plug, Male Pins | D-Sub Plug, Male Pins | D-Sub Plug, Male Pins | D-Sub 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 Range | -55°C to 125°C | -20°C to 125°C | -55°C to 125°C | -55°C to 105°C | -55°C to 105°C | -55°C to 105°C | -55°C to 105°C | -50°C to 100°C | -50°C to 100°C | -55°C to 105°C | -55°C to 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 Material | Brass | Copper Alloy | Copper Alloy | Brass | Brass | Brass | Brass | Brass | Phosphor Bronze | Brass | Brass |
| Contact Finish | Gold | Not Specified | Not Specified | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold |
| Flange Feature | Housing/Shell (Unthreaded) | Housing/Shell (Unthreaded) | Mating Side, Female Screwlock (4-40) | Mating Side, Female Screwlock (4-40) | Mating Side, Female Screwlock (4-40) | Mating Side, Female Screwlock (4-40) | Mating Side, Female Screwlock (4-40) | Housing/Shell (Unthreaded) | Board Side (4-40); Mating Side, Female Screwlock (4-40) | Board Side (M3) | Housing/Shell (4-40) |
| 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 | RoHS Compliant | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | Not Applicable | Not Applicable | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Obsolete | Active | Active | Active |
Engineering Selection Recommendations
Tier 1 - Full Equivalence (Recommended for Direct Substitution):
Parts 09653617713 (HARTING) and 1-5745968-3, 1-5745968-4, 1-5745968-5, 1-5745968-6 (TE Connectivity AMP Connectors - AMPLIMITE HD-20 series) are suitable for direct substitution where mechanical mounting flexibility permits. These parts are active products with current inventory. The TE Connectivity parts (1-5745968 series) are preferred due to gold contact finish matching the main part specification. The HARTING 09653617713 includes mating-side female screwlock for enhanced mechanical retention. Current ratings of 6A and 6.5A meet the electrical capability requirements. Operating temperature range of -55°C to 105°C covers the critical -55°C lower extreme.
Tier 2 - Conditional Equivalence (Panel Mount Alternative):
Part 172-E25-113R911 (NorComp Inc., M Series) is active and provides panel-mount through-hole configuration matching the L717DFB25PT. However, operating temperature maximum of 100°C falls below the 125°C specification. This part is suitable for applications not requiring the full upper temperature range. Current rating of 5A is below specification and indicates reduced electrical capacity.
Tier 3 - Limited Equivalence (Not Recommended):
Part 172-025-112R001 (NorComp Inc.) carries obsolete product status and is not recommended for new designs. Part 09643227210 (HARTING) has voltage rating specification of 100V, which is significantly below the L717DFB25PT 300V rating. Part 2-338311-2 (TE Connectivity AMPLIMITE HDP-20) features board-side M3 mounting, which differs from panel-mount requirements. Part 2-5747704-0 (TE Connectivity AMPLIMITE HD-20) has housing/shell mounting feature with 4-40 specification, a different mechanical interface.
All substitute parts maintain UL94 V-0 flammability rating and RoHS or ROHS3 compliance, confirming environmental and safety standard adherence.
Frequently Asked Questions (FAQ)
Q: What is the primary criterion for D-Sub connector substitution?
A: The connector type, position count (25), row count (2), and shell size/layout (3, DB/B) must match exactly. The termination method (solder) and flange feature category (panel mount vs. through hole configuration) determine mechanical compatibility. These parameters cannot vary without affecting PCB footprint and assembly requirements.
Q: Can I substitute a connector with a lower current rating?
A: No. The L717DFB25PT has a 7.5A current rating. Substitute parts with lower ratings (5A or 6A) reduce the connector's current-carrying capacity and may cause overheating in high-current applications. The substitute must meet or exceed 7.5A.
Q: Does voltage rating variation affect substitution eligibility?
A: Yes. The L717DFB25PT is rated at 300V. Substitutes with lower voltage ratings (100V or 125V) cannot provide equivalent electrical isolation and are unsuitable for applications requiring 300V isolation. Voltage must meet or exceed 300V.
Q: What is the impact of operating temperature range differences?
A: The L717DFB25PT operates from -55°C to 125°C. Substitutes with narrower ranges (such as -20°C to 125°C or -55°C to 105°C) may not function reliably in the full temperature envelope. Applications at or near the specification limits require exact range matching.
Q: Are TE Connectivity AMPLIMITE HD-20 series parts (1-5745968-X) drop-in replacements?
A: The TE Connectivity AMPLIMITE HD-20 series parts (1-5745968-3 through 1-5745968-6) share identical electrical and thermal specifications with the L717DFB25PT (300V, 6A current, -55°C to 105°C range, gold-plated brass contacts). However, they feature mating-side female screwlock (4-40) instead of unthreaded housing, requiring verification that mating connector specifications accommodate this feature difference.
Q: Why are NorComp M Series parts listed as lower equivalence?
A: NorComp 172-025-112R001 is obsolete product status, indicating manufacturing discontinuation and potential long-term supply unavailability. NorComp 172-E25-113R911, while active, has reduced current rating (5A) and lower maximum operating temperature (100°C vs. 125°C), limiting its electrical and thermal headroom in demanding applications.
Q: What packaging formats are available for these substitutes?
A: Substitutes are supplied in Tray (L717DFB25PT, 172-025-112R001, 172-E25-113R911), Bulk (09643227210, 2-338311-2), or Tube (1-5745968-3 through 1-5745968-6, 2-5747704-0) packaging. Packaging format does not affect electrical or mechanical function but impacts supply chain and procurement considerations.
Q: Are all listed substitutes RoHS compliant?
A: Yes. All substitute parts carry RoHS or ROHS3 compliance status, meeting environmental regulations for restricted substance elimination. The L717DFB25PT is RoHS Compliant. This ensures compatibility with RoHS-regulated end markets and manufacturing processes.
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