L77DEG09SOL2RM8 Equivalent & Substitute Parts

Part Overview

The L77DEG09SOL2RM8 is a 9-position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products). This female sockets connector features through-hole solder termination and board-side mounting with M3 flange configuration. The connector is designed for signal applications requiring robust mechanical and electrical performance in industrial and commercial environments. The product maintains active status with 626 units in current inventory. Substitute parts are identified to provide alternative sourcing options when the primary part becomes unavailable or when procurement requirements necessitate alternative manufacturers.

Substiute Parts

L77DEG09SOL2RM8

Amphenol ICC (Commercial Products)In Stock: 648L77DEG09SOL2RM8 Datasheet

Current PartRFQ

09641127235

HARTINGIn Stock: 138009641127235 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L77DEG09SOL2RM8 is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Connector Style: D-Sub
• Connector Type: Receptacle, Female Sockets
• Number of Positions: 9
• Number of Rows: 2
• Shell Size, Connector Layout: 1 (DE, E)
• Mounting Type: Through Hole
• Termination: Solder
• Current Rating: 7.5A
• Material Flammability Rating: UL94 V-0

Allowable Variation Parameters:

• Voltage Rating: Substitute must meet or exceed the primary part rating
• Operating Temperature Range: Substitute must cover the primary part range or provide equivalent thermal performance
• Contact Finish and Finish Thickness: Variations permitted if electrical performance is maintained
• Flange Feature Configuration: Variations permitted (M3 vs. 4-40) provided mechanical mounting compatibility is verified
• Dielectric Material: Variations permitted (Thermoplastic, Glass Filled vs. Polycyclohexylenedimethylene Terephthalate)
• Contact Material: Variations permitted (Brass vs. Copper Alloy) provided electrical conductivity is maintained

The substitute part 09641127235 (HARTING) satisfies all mandatory matching parameters and operates within allowable variation ranges for secondary parameters.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (L77DEG09SOL2RM8): Select the L77DEG09SOL2RM8 when applications require the full voltage rating of 300V and extended lower operating temperature range of -55°C. This part is actively manufactured and maintains robust inventory availability (626 units in stock). RoHS compliance and UL94 V-0 flammability rating support deployment in regulated industrial environments.

Substitute Part Selection (09641127235): The HARTING 09641127235 serves as a functional substitute when the primary part is unavailable or when procurement lead times require alternative sourcing. This part maintains electrical and mechanical compatibility across all critical parameters. The substitute operates at a reduced voltage rating of 100V and a narrower lower temperature limit of -20°C; these limitations apply only to applications exceeding these thresholds. The substitute includes an integrated filter feature not present in the primary part. ROHS3 compliance and UL94 V-0 flammability rating satisfy regulatory requirements equivalent to the primary part. Inventory availability is higher (1362 units in stock).

Application-Specific Considerations: Applications operating below -20°C or requiring voltage ratings above 100V must use the primary part L77DEG09SOL2RM8. Applications within the voltage and temperature envelope of the substitute part may use either connector interchangeably from an electrical and mechanical standpoint. The M3 flange configuration of the primary part differs from the 4-40 flange configuration of the substitute; mechanical mounting compatibility must be verified for the specific application.

Frequently Asked Questions (FAQ)

Q: Can the HARTING 09641127235 be used as a direct replacement for the L77DEG09SOL2RM8 in all applications?

A: The HARTING 09641127235 is electrically and mechanically compatible with the L77DEG09SOL2RM8 for applications operating within the voltage range of 0-100V and temperature range of -20°C to 125°C. Applications requiring the full 300V rating or operation below -20°C must use the primary part. Mechanical mounting compatibility depends on the specific flange configuration requirements (M3 vs. 4-40).

Q: What are the key differences between these two connectors?

A: The primary differences are: (1) Voltage Rating: L77DEG09SOL2RM8 is rated 300V; 09641127235 is rated 100V. (2) Operating Temperature Lower Limit: L77DEG09SOL2RM8 operates to -55°C; 09641127235 operates to -20°C. (3) Flange Configuration: L77DEG09SOL2RM8 uses M3 mounting; 09641127235 uses 4-40 mounting. (4) Integrated Features: 09641127235 includes a filter feature. All other electrical and mechanical parameters are identical.

Q: Are both connectors RoHS compliant?

A: Yes. The L77DEG09SOL2RM8 is RoHS Compliant. The HARTING 09641127235 is ROHS3 Compliant. Both meet RoHS regulatory requirements.

Q: What is the significance of the UL94 V-0 flammability rating?

A: UL94 V-0 indicates the connector shell material meets the highest flammability classification under UL94 testing standards. Both connectors carry this rating, confirming suitability for applications requiring flame-resistant materials.

Q: Can I use the substitute part if my application requires 200V operation?

A: No. The HARTING 09641127235 is rated for 100V maximum. Applications requiring 200V operation must use the L77DEG09SOL2RM8, which is rated 300V.

Q: What does Moisture Sensitivity Level (MSL) 1 mean?

A: MSL 1 (Unlimited) indicates the connector has unlimited shelf life and requires no special moisture control during storage or handling. Both connectors carry this classification.

Q: Are the contact materials equivalent between the two parts?

A: The L77DEG09SOL2RM8 uses Brass contacts with Gold finish (8.00µin thickness). The HARTING 09641127235 uses Copper Alloy contacts. Both materials provide adequate electrical conductivity for signal applications at 7.5A current rating. Contact finish specifications differ; the substitute part does not specify contact finish thickness.

Q: What is the significance of the "Board Lock" feature?

A: Board Lock is a mechanical feature that secures the connector to the printed circuit board, preventing accidental disconnection. Both connectors include this feature. The HARTING substitute additionally includes a Filter feature for EMI/RFI suppression.

Q: How do the flange configurations (M3 vs. 4-40) affect compatibility?

A: The flange configuration determines the mechanical mounting method to the circuit board. M3 uses metric mounting holes; 4-40 uses imperial mounting holes. The specific flange configuration required depends on the circuit board design. Mechanical compatibility must be verified before substitution.

Q: What is the ECCN classification and why is it relevant?

A: ECCN (Export Control Classification Number) EAR99 indicates the connector is not subject to export control restrictions. Both connectors carry this classification, confirming equivalent export compliance status.