L77DE09SAM4 Equivalent & Substitute Parts

Part Overview

The L77DE09SAM4 is a 9-position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products). This connector features female sockets in a right-angle, through-hole solder configuration with a DE shell size. The part is actively produced and stocked with 1,008 units available. Alternative equivalent parts may be required due to supply chain considerations, specific application requirements, or design revisions that necessitate component substitution while maintaining functional compatibility.

Substiute Parts

L77DE09SAM4

Amphenol ICC (Commercial Products)In Stock: 1114L77DE09SAM4 Datasheet

Current PartRFQ

182-009-213R531

NorComp Inc.In Stock: 7268182-009-213R531 Datasheet

SimilarRFQ

DEM09S732N

Amphenol ICC (FCI)In Stock: 998DEM09S732N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L77DE09SAM4 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: 9
• Shell size and layout: 1 (DE, E)
• Mounting type: Through Hole, Right Angle
• Termination method: Solder
• Contact type: Signal

Electrical Compatibility Parameters:

• Current rating: 7.5A minimum
• Voltage rating: 300V minimum
• Operating temperature range: Must encompass -55°C to 125°C

Physical Compatibility Parameters:

• Backset spacing: 0.319" (8.10mm) nominal tolerance
• Contact finish: Gold plating
• Flange feature: Housing/Shell configuration

Parts meeting all critical matching parameters and electrical/physical compatibility thresholds are classified as direct equivalents. Deviations in secondary parameters such as shell material finish, dielectric material composition, or contact material are permissible when core functional parameters align.

Parameter Comparison

Engineering Selection Recommendations

L77DE09SAM4 (Primary Part)

The L77DE09SAM4 remains the primary specification. This part is actively produced, RoHS Compliant, and carries full compliance certifications. Current inventory of 1,008 units supports immediate procurement. The part meets all specified electrical and mechanical requirements with a 7.5A current rating and 300V voltage rating across the full operating temperature range of -55°C to 125°C.

182-009-213R531 (NorComp Inc.) - Conditional Substitute

The 182-009-213R531 shares identical connector geometry, position count, shell size, and solder termination with the primary part. However, this substitute exhibits a reduced current rating of 5A compared to the 7.5A specification of the L77DE09SAM4. The operating temperature range is limited to -55°C to 105°C, which does not fully encompass the primary part's upper temperature specification of 125°C. The voltage rating is not specified in available documentation. This part is ROHS3 Compliant and carries REACH Unaffected status. Selection of this substitute is appropriate only when application requirements do not exceed 5A current draw and maximum operating temperature does not exceed 105°C.

DEM09S732N (Amphenol ICC FCI) - Direct Substitute

The DEM09S732N is a direct functional equivalent to the L77DE09SAM4. Both parts share identical connector style, type, position count, shell size, mounting configuration, and solder termination. The DEM09S732N maintains the 7.5A per contact current rating and 300V voltage rating. The operating temperature range of -55°C to 155°C exceeds the primary part specification, providing extended thermal capability. Both parts are RoHS Compliant with MSL 1 (Unlimited) rating and REACH Unaffected status. The DEM09S732N is available in bulk packaging with 909 units in stock. This part is a direct substitute without electrical or mechanical limitations relative to the L77DE09SAM4.

Frequently Asked Questions (FAQ)

Q: Can the 182-009-213R531 be used as a direct replacement for the L77DE09SAM4?

A: The 182-009-213R531 is mechanically compatible but has electrical limitations. The reduced current rating of 5A versus 7.5A and the limited operating temperature range of -55°C to 105°C restrict its use to applications that do not require the full electrical or thermal specifications of the L77DE09SAM4. Verify application requirements before substitution.

Q: What are the key differences between the L77DE09SAM4 and DEM09S732N?

A: Both parts are functionally equivalent with identical connector geometry, position count, shell size, and electrical ratings. The DEM09S732N offers an extended operating temperature range of -55°C to 155°C compared to -55°C to 125°C for the L77DE09SAM4. Shell material finish differs (yellow cadmium plated versus tin plated), and contact material composition varies (phosphor bronze versus brass). These differences do not affect functional compatibility in standard applications.

Q: Are all substitute parts RoHS compliant?

A: Yes. The L77DE09SAM4 is RoHS Compliant, the 182-009-213R531 is ROHS3 Compliant, and the DEM09S732N is RoHS Compliant. All parts carry REACH Unaffected status and meet current environmental compliance requirements.

Q: What is the significance of backset spacing differences between parts?

A: Backset spacing is the distance from the connector mounting face to the contact centerline. The L77DE09SAM4 specifies 0.319" (8.10mm), while both substitute parts specify 0.318" (8.08mm). This 0.01" (0.02mm) difference is within standard manufacturing tolerance for D-Sub connectors and does not affect mechanical or electrical compatibility in standard PCB mounting applications.

Q: Can the DEM09S732N be used in applications requiring the full -55°C to 125°C temperature range?

A: Yes. The DEM09S732N operating temperature range of -55°C to 155°C fully encompasses the -55°C to 125°C requirement of the L77DE09SAM4. The extended upper temperature limit provides additional thermal margin without compromising performance within the specified range.

Q: What packaging differences exist between the substitute parts?

A: The L77DE09SAM4 is supplied in tray packaging with 1,008 units in stock. The 182-009-213R531 is supplied in tray packaging with 7,246 units available. The DEM09S732N is supplied in bulk packaging with 909 units in stock. Packaging format does not affect connector performance or compatibility.

Q: Are there any contact material differences that affect performance?

A: The L77DE09SAM4 uses brass contacts, while the DEM09S732N uses phosphor bronze contacts. Both materials are standard for D-Sub signal connectors and provide equivalent electrical performance. The 182-009-213R531 contact material is not specified. Contact finish is gold plating on all parts, ensuring consistent signal integrity and corrosion resistance.