Equivalent & Substitute Parts for L177DFE09SAJ4

Part Overview

The L177DFE09SAJ4 is a 9-position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products). This female sockets connector features right-angle solder termination and panel mount through-hole installation. The connector is classified as active product status with full RoHS compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, enabling component interchangeability in D-Sub connector applications requiring 9-position receptacle configurations with solder termination.

Substiute Parts

L177DFE09SAJ4

Amphenol ICC (Commercial Products)In Stock: 942L177DFE09SAJ4 Datasheet

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DE09S564TLF

Amphenol ICC (FCI)In Stock: 1187DE09S564TLF Datasheet

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DE09S565MTLF

Amphenol ICC (FCI)In Stock: 865DE09S565MTLF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the L177DFE09SAJ4 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Electrical Parameters:

• Connector type: Receptacle, female sockets
• Number of positions: 9
• Shell size and layout: 1 (DE, E)
• Voltage rating: 300V
• Operating temperature range: -55°C ~ 125°C
• Material flammability rating: UL94 V-0

Mechanical Parameters:

• Mounting type: Through hole, right angle
• Termination method: Solder
• Shell material and finish: Steel, tin plated
• Contact finish: Gold
• Connector style: D-Sub

Compliance Parameters:

• RoHS compliance status
• Product status: Active

The substitute parts DE09S564TLF and DE09S565MTLF satisfy these core parameters, enabling direct substitution in applications where the L177DFE09SAJ4 is specified. Variations in backset spacing, current rating per contact, and contact material do not preclude substitution when mechanical envelope and electrical performance requirements are met.

Parameter Comparison

Engineering Selection Recommendations

All three connectors—L177DFE09SAJ4, DE09S564TLF, and DE09S565MTLF—maintain active product status with full RoHS compliance and UL94 V-0 flammability certification. Selection between these parts is determined by specific application requirements:

L177DFE09SAJ4 Selection Criteria:

• Applications requiring 7.5A current rating per connector
• Designs specifying copper alloy contact material
• Installations requiring panel mount configuration with mounting brackets
• Tray packaging preference for production environments

DE09S564TLF Selection Criteria:

• Applications with 5A per contact current requirement
• Bulk packaging for high-volume procurement
• Designs where backset spacing of 0.409" (10.40mm) accommodates mechanical envelope
• Flash contact finish thickness acceptable for application

DE09S565MTLF Selection Criteria:

• Applications with 5A per contact current requirement
• Phosphor bronze contact material specification
• Designs requiring mounting brackets
• Tray packaging for production environments
• Backset spacing of 0.370" (9.40mm) compatible with mechanical layout
• Contact finish thickness of 30.0µin (0.76µm) matching L177DFE09SAJ4

All substitute parts satisfy core D-Sub 9-position receptacle requirements with solder termination, steel tin-plated shells, gold contact finish, 300V voltage rating, and -55°C to 125°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can DE09S564TLF directly replace L177DFE09SAJ4 in all applications?

A: DE09S564TLF is electrically and mechanically compatible as a 9-position D-Sub receptacle with solder termination. However, the current rating differs (5A per contact versus 7.5A) and backset spacing is 0.409" compared to 0.319". Applications requiring the higher current rating or specific backset spacing must evaluate compatibility with the actual circuit design.

Q: What is the difference between DE09S565MTLF and DE09S564TLF?

A: Both are 9-position D-Sub receptacles with identical electrical ratings (5A per contact, 300V, -55°C to 125°C). Key differences include: backset spacing (0.370" versus 0.409"), contact material (phosphor bronze versus copper alloy), dielectric material composition (glass-filled thermoplastic versus thermoplastic), packaging (tray versus bulk), and contact finish thickness (30.0µin versus flash).

Q: Does backset spacing affect connector interchangeability?

A: Backset spacing determines the distance from the connector mounting surface to the contact plane. L177DFE09SAJ4 specifies 0.319" (8.10mm), DE09S564TLF specifies 0.409" (10.40mm), and DE09S565MTLF specifies 0.370" (9.40mm). Substitution is valid only when the receiving circuit board or mating connector accommodates the backset spacing of the substitute part.

Q: Are all three connectors RoHS compliant?

A: Yes. L177DFE09SAJ4, DE09S564TLF, and DE09S565MTLF are all RoHS compliant with MSL rating of 1 (unlimited moisture sensitivity level). L177DFE09SAJ4 and DE09S565MTLF carry REACH unaffected designation.

Q: What is the significance of contact material differences?

A: L177DFE09SAJ4 uses copper alloy contacts while DE09S565MTLF uses phosphor bronze. Both materials are suitable for signal-level D-Sub applications. Contact material selection affects mechanical properties and wear characteristics but does not preclude substitution in standard signal applications.

Q: Does packaging type affect connector performance?

A: Packaging (tray versus bulk) is a procurement and logistics consideration only. L177DFE09SAJ4 and DE09S565MTLF are supplied in trays, while DE09S564TLF is supplied in bulk. Packaging does not affect electrical or mechanical performance.

Q: Can I substitute based on current rating alone?

A: No. While current rating is a critical parameter, substitution requires alignment of all core parameters: connector type, number of positions, shell size, mounting type, termination method, voltage rating, operating temperature, and compliance certifications. Current rating differences must be evaluated within the context of the complete application circuit.

Q: What does GXT™ contact finish indicate?

A: GXT™ is a proprietary gold contact finish specification used by Amphenol ICC (FCI) on DE09S564TLF and DE09S565MTLF. Both parts maintain gold contact finish with the specified thickness (flash or 30.0µin) suitable for signal-level D-Sub applications.