L77DA15SAJ4VF

Part Overview

The L77DA15SAJ4VF is a 15-position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products). This connector features female sockets with right-angle, through-hole solder termination and is actively produced. The part is RoHS compliant and rated for 300V, 7.5A operation across -55°C to 125°C. Substitute parts are necessary when addressing product obsolescence, supply chain constraints, or specific application requirements regarding contact rating, temperature range, or mounting configurations.

Substiute Parts

L77DA15SAJ4VF

Amphenol ICC (Commercial Products)In Stock: 975L77DA15SAJ4VF Datasheet

Current PartRFQ

173-E15-211R141

NorComp Inc.In Stock: 1158173-E15-211R141 Datasheet

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173-E15-211R241

NorComp Inc.In Stock: 1434173-E15-211R241 Datasheet

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174-E15-211R141

NorComp Inc.In Stock: 1319174-E15-211R141 Datasheet

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DA15S564GTLF

Amphenol ICC (FCI)In Stock: 1213DA15S564GTLF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L77DA15SAJ4VF is determined by alignment across the following critical parameters:

Essential Compatibility Parameters:

• Connector Type: Receptacle, Female Sockets
• Number of Positions: 15
• Number of Rows: 2
• Shell Size, Connector Layout: 2 (DA, A)
• Termination Method: Solder
• Connector Style: D-Sub

Application Performance Parameters:

• Current Rating (Amps): Must equal or exceed 7.5A
• Voltage Rating: Must equal or exceed 300V
• Operating Temperature Range: Must accommodate -55°C to 125°C

Form Factor Parameters:

• Mounting Type: Through Hole, Right Angle
• Flange Feature: Compatible mechanical interface

Regulatory Compliance:

• RoHS Status: Active parts preferred; obsolete parts suitable where supply or legacy application requirements apply

The substitute parts listed below share the D-Sub receptacle 15-position configuration with solder termination. However, variations in current rating, voltage specification, backset spacing, shell material finish, and product status affect their suitability for direct replacement.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Active Products): The DA15S564GTLF from Amphenol ICC (FCI) is the primary active substitute. Both parts share identical D-Sub 15-position configuration, solder termination, tin-plated steel shells, gold contact finish, 300V voltage rating, and -55°C to 125°C operating temperature range. Both are RoHS compliant. The DA15S564GTLF features a different flange interface (housing/shell unthreaded with board lock versus female screwlock) and increased backset spacing (10.40mm versus 8.10mm), which may require PCB layout adjustment.

Secondary Options (Obsolete Products): The 173-E15-211R141, 173-E15-211R241, and 174-E15-211R141 from NorComp are obsolete products and are not recommended for new designs. These parts exhibit reduced current ratings (5A versus 7.5A), unspecified voltage ratings, narrower operating temperature range (-50°C to 100°C versus -55°C to 125°C), non-compliant RoHS status, and backset spacing variations. Obsolete products may be used in legacy system maintenance when original part sourcing is infeasible.

Compliance Consideration: Applications requiring RoHS compliance eliminate NorComp substitutes. The L77DA15SAJ4VF and DA15S564GTLF are both RoHS compliant and suitable for regulated environments.

Frequently Asked Questions (FAQ)

Q: Can the DA15S564GTLF directly replace the L77DA15SAJ4VF on existing PCBs? A: Both connectors feature identical D-Sub 15-position, 2-row configuration with solder termination and matching electrical ratings. Mechanical compatibility depends on backset spacing: the L77DA15SAJ4VF uses 8.10mm spacing, while the DA15S564GTLF uses 10.40mm spacing. PCB footprint adjustment may be necessary. The DA15S564GTLF uses a board-lock flange interface instead of female screwlock, requiring verification of mounting hole compatibility.

Q: Why are the NorComp parts listed as substitutes if they are obsolete? A: The NorComp parts (173-E15-211R141, 173-E15-211R241, 174-E15-211R141) are included because they share the core D-Sub 15-position, 2-row receptacle configuration. However, their obsolete status, reduced current rating (5A), unspecified voltage rating, and RoHS non-compliance make them unsuitable for new applications. They are documented for reference in legacy system support scenarios only.

Q: Does the L77DA15SAJ4VF meet RoHS requirements? A: Yes, the L77DA15SAJ4VF is RoHS compliant. The DA15S564GTLF is also RoHS compliant. All NorComp substitutes are RoHS non-compliant.

Q: What is the impact of differing backset spacing on connector substitution? A: Backset spacing (lead pitch) determines PCB hole positioning. The L77DA15SAJ4VF specifies 8.10mm, while substitutes range from 7.20mm (NorComp) to 10.40mm (DA15S564GTLF). Direct PCB substitution without layout modification is not possible between parts with different spacing values.

Q: Are there voltage rating differences among these connectors? A: The L77DA15SAJ4VF and DA15S564GTLF are both rated 300V. The three NorComp substitutes do not specify a voltage rating, making voltage compatibility uncertain for high-voltage applications.

Q: What is the significance of the current rating difference between L77DA15SAJ4VF (7.5A) and the substitutes (5A)? A: The L77DA15SAJ4VF supports 7.5A per contact, while NorComp and the DA15S564GTLF (5A per contact) have reduced current capacity. In applications exceeding 5A per contact, the substitute parts do not meet electrical requirements and must not be used.