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L717DFBF25POL2 D-Sub 25-Position Plug Connector – Equivalent & Substitute Parts
Part Overview
The L717DFBF25POL2 is a 25-position D-Sub plug connector manufactured by Amphenol ICC, featuring panel mount through-hole solder termination. This connector is actively produced and stocked at 1,032 units. D-Sub connectors of this configuration are widely used in industrial control, telecommunications, and legacy computing applications where standardized 25-pin signal distribution is required. Substitute parts become necessary when the primary part is unavailable, when alternative packaging or mounting configurations are preferred, or when supply chain optimization is required.
Substiute Parts
Key Parameters
| Parameter | L717DFBF25POL2 Specification |
|---|---|
| Manufacturer | Amphenol ICC (Commercial Products) |
| Connector Type | D-Sub Plug, Male Pins |
| Number of Positions | 25 |
| Shell Size / Layout | 3 (DB, B) |
| Mounting Type | Panel Mount, Through Hole |
| Termination | Solder |
| Shell Material / Finish | Steel, Tin Plated |
| Contact Finish | Gold (20.0µin / 0.51µm) |
| Current Rating | 7.5A |
| Voltage Rating | 300V |
| Operating Temperature | -55°C to +155°C |
| Material Flammability | UL94 V-0 |
| RoHS Status | RoHS Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
| Product Status | Active |
Substitute Part Grouping Explanation
Substitution eligibility for the L717DFBF25POL2 is determined by the following mandatory parameters:
Core Compatibility Parameters:
- Connector type: D-Sub plug with male pins
- Position count: 25 positions
- Shell size and layout: 3 (DB, B)
- Termination method: Solder
- Flammability rating: UL94 V-0
Functional Equivalence Parameters:
- Current rating: Minimum 6.0A (main part rated 7.5A)
- Voltage rating: Minimum 125V (main part rated 300V)
- Operating temperature range: Must encompass -55°C minimum; upper limit may vary
- Contact material: Brass or copper alloy acceptable
- Contact finish: Gold or tin plated acceptable
Mounting Consideration: The main part features panel mount configuration. Substitute parts with through-hole mounting (without panel mount flange) are functionally equivalent when the connector is secured by alternative mechanical means. Parts with board-side locking features provide enhanced mechanical retention in through-hole applications.
The following substitute parts meet these criteria and are grouped by mounting configuration and manufacturer series.
Parameter Comparison
| Part Number | Manufacturer | Mounting Type | Current Rating (A) | Voltage Rating (V) | Operating Temp (°C) | Shell Finish | Contact Finish | RoHS Status | Product Status | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|---|
| L717DFBF25POL2 | Amphenol ICC | Panel Mount, Through Hole | 7.5 | 300 | -55 to +155 | Steel, Tin | Gold (20.0µin) | RoHS Compliant | Active | 1,032 |
| 09653617713 | HARTING | Through Hole | 6.5 | — | -55 to +125 | Steel | — | ROHS3 Compliant | Active | 884 |
| 1-5745968-3 | TE Connectivity AMP | Through Hole | 6 | 125 | -55 to +105 | Steel, Tin | Gold (Flash) | ROHS3 Compliant | Active | 1,442 |
| 1-5745968-4 | TE Connectivity AMP | Through Hole | 6 | 125 | -55 to +105 | Steel, Tin | Gold (Flash) | ROHS3 Compliant | Active | 3,136 |
| 1-5745968-5 | TE Connectivity AMP | Through Hole | 6 | 125 | -55 to +105 | Steel, Tin | Gold (Flash) | ROHS3 Compliant | Active | 1,823 |
| 1-5745968-6 | TE Connectivity AMP | Through Hole | 6 | 125 | -55 to +105 | Steel, Tin | Gold (Flash) | RoHS Compliant | Active | 1,532 |
| 172-025-112R001 | NorComp Inc. | Panel Mount, Through Hole | 5 | — | -50 to +100 | Steel, Tin | Gold (Flash) | ROHS3 Compliant | Obsolete | 2,444 |
| 172-E25-113R911 | NorComp Inc. | Panel Mount, Through Hole | 5 | — | -50 to +100 | Steel, Nickel | Gold (Flash) | ROHS3 Compliant | Active | 986 |
| 2-338311-2 | TE Connectivity AMP | Through Hole | 6 | 125 | -55 to +105 | Steel, Tin | Gold (Flash) | ROHS3 Compliant | Active | 779 |
| 2-5747704-0 | TE Connectivity AMP | Through Hole | 6 | 125 | -55 to +105 | Steel, Tin | Gold | ROHS3 Compliant | Active | 3,224 |
| 5208008-1 | TE Connectivity AMP | Through Hole | 6 | 125 | -55 to +105 | — | Gold (Flash) | ROHS3 Compliant | Active | 1,523 |
Engineering Selection Recommendations
Primary Substitutes (Highest Compatibility):
The TE Connectivity AMPLIMITE HD-20 series (1-5745968-3, 1-5745968-4, 1-5745968-5, 1-5745968-6, 2-5747704-0, and 5208008-1) provide the closest functional equivalence. All are actively produced, RoHS3 compliant, and feature identical 25-position D-Sub configuration with solder termination. These parts operate within -55°C to +105°C, which covers the lower temperature extreme of the main part. Current rating of 6A and voltage rating of 125V are within acceptable operational margins for most applications. Gold contact finish and tin-plated steel shells ensure signal integrity and corrosion resistance. The primary trade-off is reduced upper operating temperature limit (105°C versus 155°C) and lower voltage rating (125V versus 300V).
Secondary Substitutes (Panel Mount Configuration):
The NorComp 172-E25-113R911 maintains panel mount through-hole configuration matching the main part's mechanical interface. This part is actively produced and ROHS3 compliant. Operating temperature range (-50°C to +100°C) and current rating (5A) are reduced compared to the main part, making it suitable for applications with less demanding thermal and current requirements. The NorComp 172-025-112R001 offers identical mechanical mounting but is obsolete; use only when existing inventory must be maintained for legacy system repairs.
Alternative Mounting (Through-Hole Only):
The HARTING 09653617713 and TE Connectivity 2-338311-2 provide through-hole solder termination without panel mount flange. These require alternative mechanical retention methods (such as bracket mounting or PCB edge positioning). Both are actively produced and RoHS3 compliant. The HARTING part features board-lock and grounding indents for enhanced mechanical stability in through-hole applications.
Compliance Considerations:
All substitute parts listed are RoHS compliant (either RoHS or ROHS3 status). The main part carries RoHS Compliant status; ROHS3 variants are acceptable for new designs. All parts maintain UL94 V-0 flammability rating and MSL 1 (unlimited moisture sensitivity), ensuring compatibility with standard handling and storage protocols.
Frequently Asked Questions (FAQ)
Q: Can I use a through-hole D-Sub connector to replace the panel mount L717DFBF25POL2?
A: Yes, provided the mechanical mounting structure is redesigned to accommodate through-hole termination. Through-hole variants (such as TE Connectivity AMPLIMITE HD-20 series) are electrically and functionally equivalent. Panel mount variants (NorComp 172-E25-113R911) maintain the original mounting interface and are preferred when mechanical redesign is not feasible.
Q: What is the impact of the reduced operating temperature range in substitute parts?
A: The main part operates to +155°C; most substitute parts operate to +105°C. If your application requires sustained operation above +105°C, the main part or equivalent high-temperature variants must be used. For applications operating within -55°C to +105°C, substitute parts are fully compatible.
Q: Are TE Connectivity AMPLIMITE HD-20 variants (1-5745968-3, -4, -5, -6) interchangeable?
A: Yes. These four part numbers are functionally identical 25-position D-Sub plugs within the same series. Differences are typically in packaging (tube) and internal manufacturing revisions. All meet the same electrical and mechanical specifications and are interchangeable in circuit design.
Q: Does the reduced current rating (6A vs. 7.5A) affect compatibility?
A: The 6A rating of substitute parts is acceptable for most signal-level D-Sub applications. If your circuit requires sustained current above 6A per pin, verify that the substitute part's rating meets your specific current distribution. For standard signal distribution (typically 1–3A per pin), the 6A rating is adequate.
Q: What is the difference between gold contact finish specifications (20.0µin vs. Flash)?
A: The main part specifies 20.0µin (0.51µm) gold plating thickness. Substitute parts with "Flash" gold plating have thinner gold layers (typically 0.1–0.5µm). Both provide corrosion resistance and low contact resistance. Flash plating is standard in modern connectors and is functionally equivalent for signal applications.
Q: Can I use NorComp parts as direct replacements?
A: NorComp 172-E25-113R911 is actively produced and maintains panel mount configuration, making it a direct mechanical replacement. However, it has reduced current (5A) and operating temperature (-50°C to +100°C) ratings. The NorComp 172-025-112R001 is obsolete and should be used only for legacy system maintenance where existing inventory is available.
Q: Are ROHS3 compliant parts acceptable in designs specifying RoHS compliance?
A: Yes. ROHS3 is a newer compliance designation that supersedes RoHS. Parts marked ROHS3 Compliant meet all RoHS requirements and are acceptable in designs specifying RoHS compliance.
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