DLS3XS4AA39X — 25 Position D-Sub Receptacle, Female Sockets Connector

Part Overview

The DLS3XS4AA39X is an Amphenol CONEC D-Sub receptacle connector with 25 positions, designed for through-hole solder termination applications. This connector features a 2-row shell layout (Size 3, DB configuration) with gold-plated copper alloy contacts and board-side locking mechanism. The product is active and available in bulk packaging with 711 units in stock.

Finding alternative models becomes necessary for applications requiring different operating temperature ranges, higher current ratings, alternative contact finishes, or different flange mounting configurations while maintaining the core D-Sub 25-position receptacle architecture.

Substiute Parts

DLS3XS4AA39X

Amphenol CONECIn Stock: 814DLS3XS4AA39X Datasheet

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09643127235

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09663116502

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09663116503

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09663117501

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the DLS3XS4AA39X is permitted only when maintaining the following core electrical and mechanical parameters:

Non-Negotiable Parameters (must remain identical):

• Connector Style: D-Sub
• Connector Type: Receptacle, Female Sockets
• Number of Positions: 25
• Number of Rows: 2
• Shell Size, Connector Layout: 3 (DB, B)
• Mounting Type: Through Hole
• Termination: Solder
• Contact Type: Signal
• Contact Material: Copper Alloy
• Material Flammability Rating: UL94 V-0
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Variable Parameters (acceptable differences between substitutes):

• Current Rating: 3A to 7.5A (higher ratings are acceptable)
• Voltage Rating: 100V to 250V (connector must support minimum 100V)
• Operating Temperature: Ranges from -20°C ~ 125°C to -55°C ~ 125°C
• Shell Material Finish: Steel (Tin Plated, Unfinished, or Gold)
• Contact Finish: Gold or unspecified
• Flange Feature: Board Side, Housing/Shell, or Mating Side with various fastener types (4-40, M3, Unthreaded)
• Contact Form: Stamped or Machined
• Dielectric Material: Thermoplastic, PBT (Polybutylene Terephthalate), or PCT (Polycyclohexylenedimethylene Terephthalate)
• Features: May include Board Lock or Filter
• Packaging: Bulk or Tray

The 12 HARTING substitute parts (09643127235, 09663116502, 09663116503, 09663117501, 09663117502, 09663516512, 09663517511, 09663517512, 09663556512, 09670254754) all maintain the core D-Sub 25-position receptacle specification while varying in mounting flange configuration, dielectric material composition, contact finish, and feature set.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity levels, ensuring environmental and regulatory compatibility with the original DLS3XS4AA39X specification. All parts retain UL94 V-0 flammability certification and through-hole solder termination architecture.

Amphenol CONEC DLS3XS4AA39X is the specified component and shall be used where the original design calls for gold-plated contact finish (flash thickness), board-side flange mounting with 4-40 fasteners, 3A current rating, and operating temperature range of -55°C to 105°C.

HARTING 09643127235 offers enhanced current handling (7.5A) and extended maximum operating temperature (125°C) with board-side mounting identical to the main part, but operates at lower voltage (100V) and features filter capability. Dielectric material is PCT rather than generic thermoplastic.

HARTING 09663116503 provides identical operating temperature range (-55°C to 125°C) and flange type (mating-side female screwlock, 4-40) with higher current rating (6.5A). Dielectric material is glass-filled PBT.

HARTING 09663556512 features identical board lock and board-side housing mount (4-40) with gold contact finish and 6.5A current rating, with PCT glass-filled dielectric material for superior thermal stability.

HARTING 09663516512 and 09663517512 provide board lock with housing-shell mounting (4-40) configuration and 6.5A current rating in bulk and tray packaging options respectively.

HARTING 09670254754 offers highest current rating (7.5A) with machined contacts and unthreaded housing mount in tray packaging, suitable for applications requiring maximum current capacity.

Selection of substitute components must account for mechanical flange mounting differences, dielectric material thermal characteristics, and contact current requirements relative to circuit specifications.

Frequently Asked Questions (FAQ)

Q: Can HARTING substitute parts replace the Amphenol CONEC DLS3XS4AA39X in any application?

A: Substitutes are electrically and mechanically compatible only if your circuit design accommodates the specific flange mounting configuration. The main part features board-side 4-40 mounting; HARTING alternatives include housing-shell 4-40, housing-shell M3, mating-side female screwlock 4-40, and unthreaded variants. Physical board layout and connector mounting hardware must align with the selected substitute's flange feature.

Q: Why do substitute parts have higher current ratings (6.5A or 7.5A) than the original 3A specification?

A: Current rating represents the maximum permissible current per contact. Higher-rated substitutes maintain the same 25-position receptacle architecture and solder termination but use enhanced copper alloy contact formulations or different manufacturing processes (machined vs. stamped). Circuit design should use the lower rating (3A) unless validated for higher current operation.

Q: What is the difference between gold-plated and unspecified contact finish?

A: The main part specifies gold flash plating for corrosion resistance and consistent contact resistance. HARTING substitutes with unspecified contact finish may use bare copper alloy or alternative surface treatments. Contact finish selection depends on environmental exposure and signal integrity requirements; designs with corrosive environments or high-frequency applications benefit from explicitly specified gold plating.

Q: Are dielectric material differences significant for substitution?

A: Yes. The main part uses generic thermoplastic; most substitutes use PBT (Polybutylene Terephthalate) or PCT (Polycyclohexylenedimethylene Terephthalate), often glass-filled. PBT and PCT offer higher glass-transition temperatures and mechanical stability, supporting the extended operating range (-55°C to 125°C) versus the main part's -55°C to 105°C. Thermoplastic designation provides lower thermal stability. For applications within -55°C to 105°C, both materials are suitable.

Q: What is the difference between board-side, housing-shell, and mating-side flange mounting?

A: Flange position determines mounting location on the PCB or chassis. Board-side flange mounts perpendicular to the circuit board surface with fasteners on the board side. Housing-shell flange positions fasteners on the connector shell itself, typically for chassis mounting. Mating-side flange positions fasteners on the mating interface side. Connector compatibility is not affected by flange type, but mechanical installation and board layout differ substantially.

Q: Can I use HARTING 09663117501 (M3 fastener) in place of the 4-40 fastener specification?

A: No. The 4-40 and M3 refer to fastener thread types. M3 is metric (3 mm diameter), while 4-40 is UNC (unified coarse, #4 diameter). Mounting hardware and PCB hole patterns are not interchangeable. Board design must accommodate the specific fastener type of the selected substitute.

Q: Which substitute is best for maximum reliability?

A: Reliability depends on application requirements, not connector rating alone. For designs requiring gold contact finish and verified specifications, the original Amphenol CONEC DLS3XS4AA39X is specified. For high-temperature applications extending to 125°C, HARTING parts with extended temperature range are necessary. For high-current circuits, parts rated 6.5A or 7.5A accommodate higher contact loads. Product status is active for all listed components, confirming continued manufacturing support and compliance maintenance.

Q: What is the significance of board lock versus no board lock?

A: Board lock feature (present in main part and selected HARTING substitutes) provides mechanical retention of the connector to the circuit board through latching mechanism, preventing accidental disconnection. Parts without explicit board lock feature rely on flange fastening alone. Design assembly procedures and application environment determine necessity.