L17DCFRBA37SC309 Equivalent & Substitute Parts

Part Overview

The L17DCFRBA37SC309 is a 37-position D-Sub receptacle connector manufactured by Amphenol ICC, featuring female sockets with IDC ribbon cable termination. This connector is designed for free-hanging, in-line applications requiring signal transmission across 37 positions arranged in 2 rows. The part is currently active in production with 760 units available in new original stock.

D-Sub connectors of this specification are essential in legacy and industrial systems requiring standardized parallel data transmission. Substitute parts become necessary when original inventory is depleted, when alternative mounting configurations are required for system redesign, or when supply chain constraints necessitate qualified alternatives from different manufacturers.

Substiute Parts

L17DCFRBA37SC309

Amphenol ICC (Commercial Products)In Stock: 865L17DCFRBA37SC309 Datasheet

Current PartRFQ

8337-6009

3MIn Stock: 12508337-6009 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L17DCFRBA37SC309 is determined by strict alignment with the following core parameters:

Critical Matching Parameters:

• Connector style: D-Sub
• Connector type: Receptacle, Female Sockets
• Number of positions: 37
• Number of rows: 2
• Shell size and layout: 4 (DC, C)
• Termination method: IDC, Ribbon Cable
• Contact finish: Gold
• Contact finish thickness: 30.0µin (0.76µm)

Allowable Variations:

• Mounting type: Free-hanging and panel-mount configurations are functionally distinct but both accommodate 37-position D-Sub receptacles with IDC termination
• Current rating: Variations are acceptable when the substitute meets or exceeds the application requirement
• Operating temperature range: Substitutes with extended ranges are acceptable
• Shell material finish: Nickel-plated and tin-plated finishes are both acceptable for D-Sub applications
• Contact material: Phosphor bronze and copper alloy compositions are both acceptable for signal transmission
• Dielectric material: Thermoplastic glass-filled and polyester glass-filled materials are both acceptable
• Wire gauge tolerance: 26 AWG and 26-28 AWG ranges are compatible

The substitute part 8337-6009 from 3M qualifies as an equivalent based on these parameters, with the primary distinction being mounting configuration (panel mount versus free-hanging).

Parameter Comparison

Engineering Selection Recommendations

L17DCFRBA37SC309 (Amphenol ICC DFR Series):

• Primary selection for free-hanging, in-line cable applications
• Supports 5A current rating, suitable for higher-power signal applications
• 250V voltage rating specified
• Operating range -25°C to 85°C accommodates standard industrial environments
• RoHS Compliant status confirms environmental regulatory alignment
• Nickel-plated steel shell provides corrosion resistance
• 760 units in stock provide immediate availability

8337-6009 (3M 8300 Series):

• Alternative selection for panel-mount applications requiring 37-position D-Sub receptacle with IDC termination
• 1A current rating limits application to lower-power signal transmission
• Extended operating temperature range (-55°C to 105°C) suitable for extreme environment applications
• ROHS3 Compliant status confirms current environmental regulatory alignment
• Tin-plated steel shell provides alternative corrosion protection
• 1234 units in stock provide extended availability
• Mounting configuration difference requires mechanical redesign consideration

Selection between these parts depends on mounting requirement (free-hanging versus panel-mount) and current rating necessity. Both parts maintain identical connector geometry, position count, and IDC termination compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 8337-6009 directly replace the L17DCFRBA37SC309 in an existing assembly?

A: Direct mechanical replacement is not possible due to mounting type difference. The L17DCFRBA37SC309 is free-hanging (in-line), while the 8337-6009 is panel-mount. The connector interface (37-position D-Sub receptacle with IDC termination) is identical, but the flange configuration and mounting hardware differ. System redesign is required for substitution.

Q: What is the significance of the 5A versus 1A current rating difference?

A: The L17DCFRBA37SC309 supports 5A per contact, while the 8337-6009 supports 1A per contact. Current rating determines the maximum continuous current each contact can safely carry. Applications requiring current transmission above 1A per contact must use the L17DCFRBA37SC309. Signal-only applications are unaffected by this difference.

Q: Are the gold contact finishes identical between both parts?

A: Both parts specify gold contact finish at 30.0µin (0.76µm) thickness. Contact finish thickness is identical, ensuring equivalent electrical performance and corrosion resistance for signal transmission.

Q: Does the operating temperature range difference affect substitution?

A: The 8337-6009 provides extended operating range (-55°C to 105°C) compared to the L17DCFRBA37SC309 (-25°C to 85°C). For applications within the L17DCFRBA37SC309 range, both parts are acceptable. For extreme temperature applications, the 8337-6009 is required.

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

A: Both finishes provide corrosion protection for the steel shell. Nickel plating offers superior corrosion resistance in harsh environments, while tin plating is standard for general industrial applications. Both are acceptable for D-Sub connector applications.

Q: Are the dielectric materials functionally equivalent?

A: Both thermoplastic glass-filled and polybutylene terephthalate (PBT) polyester glass-filled materials meet UL94 V-0 flammability requirements and provide equivalent electrical insulation properties for D-Sub applications. Material selection does not affect connector substitution eligibility.

Q: Can ribbon cable from one part be used with the other?

A: Both parts use IDC (Insulation Displacement Contact) termination for 26-28 AWG ribbon cable. Ribbon cable compatibility is maintained between parts. However, mechanical mounting differences require appropriate cable routing and strain relief configuration for each mounting type.

Q: What does RoHS Compliant versus ROHS3 Compliant mean?

A: RoHS Compliant indicates compliance with the original Restriction of Hazardous Substances directive. ROHS3 Compliant indicates compliance with the updated directive including additional restricted substances. Both statuses confirm environmental regulatory compliance; ROHS3 represents current regulatory alignment.

Q: Is packaging type (Tray versus Bulk) significant for substitution?

A: Packaging type affects storage, handling, and inventory management but does not affect connector functionality or electrical performance. The L17DCFRBA37SC309 is supplied in Tray packaging (760 units), while the 8337-6009 is supplied in Bulk packaging (1234 units). Packaging selection depends on inventory and logistics requirements.