L77HDDG78SOL2RM5

Part Overview

The L77HDDG78SOL2RM5 is a 78-position D-Sub high-density receptacle connector manufactured by Amphenol ICC (Commercial Products). This vertical solder-mount connector features female sockets and is designed for through-hole PCB applications. The product is currently active with 964 units in stock. Finding alternative models may be necessary due to supply constraints, lead time requirements, or specific application needs that demand alternative mounting orientations or electrical specifications.

Substiute Parts

L77HDDG78SOL2RM5

Amphenol ICC (Commercial Products)In Stock: 1007L77HDDG78SOL2RM5 Datasheet

Current PartRFQ

09641147212

HARTINGIn Stock: 92609641147212 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The part number 09641147212 (HARTING) is listed as a substitute in the provided substitution field; however, this substitution relationship is not supported based on the allowed electrical and mechanical parameters for this product category.

The HARTING 09641147212 differs fundamentally across critical parameters that define connector compatibility:

• Position Count Mismatch: 78 positions (L77HDDG78SOL2RM5) versus 9 positions (09641147212)
• Shell Size Incompatibility: Size 5 (DD, D) High Density versus Size 1 (DE, E)
• Row Configuration: 4-row layout versus 2-row layout
• Voltage Rating: 250V versus 100V
• Current Rating: 3A versus 7.5A
• Operating Temperature Range: -55°C to 155°C versus -20°C to 125°C
• Mounting Orientation: Vertical mounting versus Right Angle mounting

These differences prevent functional or mechanical interchangeability in standard D-Sub high-density connector applications.

Parameter Comparison

Engineering Selection Recommendations

The L77HDDG78SOL2RM5 maintains active product status with confirmed RoHS compliance and UL94 V-0 flammability rating. This connector is suitable for applications requiring 78-position high-density D-Sub connectivity with vertical solder termination and extended temperature range operation from -55°C to 155°C.

No equivalent substitute meeting the full electrical and mechanical parameter specification set is available. Any component selection for 78-position D-Sub high-density receptacle applications must specify the L77HDDG78SOL2RM5 or equivalent models within the Amphenol ICC HD series (base product number L77HDDG78) that maintain identical position counts, shell size classification, and electrical ratings.

Frequently Asked Questions (FAQ)

Q: Can the HARTING 09641147212 replace the L77HDDG78SOL2RM5 in an existing design?

A: No. The HARTING 09641147212 is a 9-position D-Sub connector with Size 1 (DE, E) shell classification, whereas the L77HDDG78SOL2RM5 is a 78-position high-density connector with Size 5 (DD, D) shell classification. These connectors are not mechanically or electrically compatible.

Q: What determines substitution capability for D-Sub receptacle connectors?

A: Substitution requires matching: position count, row configuration, shell size classification, mounting type (vertical vs. right-angle), voltage rating, current rating, and operating temperature range. Deviation in any of these parameters results in non-compatibility.

Q: What is the significance of the shell size designation?

A: Shell size designates the physical dimensions and pin spacing of the D-Sub connector. Size 5 (DD, D) high-density connectors are not compatible with Size 1 (DE, E) connectors; they require different mating plugs and PCB footprints.

Q: Is the L77HDDG78SOL2RM5 compatible with right-angle mounting applications?

A: No. The L77HDDG78SOL2RM5 is designed for vertical through-hole mounting. Right-angle mounting variants would require a different part number within the Amphenol ICC product line.

Q: What compliance standards apply to this connector?

A: The L77HDDG78SOL2RM5 is RoHS Compliant, rated UL94 V-0 for material flammability, and carries ECCN EAR99 classification with HTSUS code 8536.69.4040. Moisture Sensitivity Level (MSL) is 1 (Unlimited), indicating no moisture precautions are required for storage or handling.