L77DA15SAJ4VFM Equivalent & Substitute Parts

Part Overview

The L77DA15SAJ4VFM is a 15-position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products). This connector features female sockets, right-angle mounting, and solder termination, designed for signal applications in industrial and commercial equipment. The part maintains active product status with 932 units in current inventory.

Substitute parts become necessary when the primary part experiences supply constraints, inventory depletion, or when design requirements permit alternative configurations. The substitute parts listed below provide functional equivalence within specified electrical and mechanical parameters.

Substiute Parts

L77DA15SAJ4VFM

Amphenol ICC (Commercial Products)In Stock: 1029L77DA15SAJ4VFM Datasheet

Current PartRFQ

173-E15-211R141

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

SimilarRFQ

173-E15-211R241

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

SimilarRFQ

174-E15-211R141

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

SimilarRFQ

DA15S564GTLF

Amphenol ICC (FCI)In Stock: 1213DA15S564GTLF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L77DA15SAJ4VFM is determined by the following critical parameters:

Mandatory Matching Parameters:

• Connector Type: Receptacle, Female Sockets
• Number of Positions: 15
• Number of Rows: 2
• Shell Size, Connector Layout: 2 (DA, A)
• Mounting Type: Through Hole, Right Angle
• Termination: Solder
• Material Flammability Rating: UL94 V-0

Allowable Variation Parameters:

• Current Rating: Substitute must meet or exceed 7.5A requirement
• Voltage Rating: Substitute must meet or exceed 300V requirement
• Operating Temperature: Substitute must encompass or exceed -55°C ~ 125°C range
• Shell Material Finish: Alternative finishes permitted if electrical performance maintained
• Contact Finish: Alternative finishes permitted if electrical performance maintained
• RoHS Status: Compliance preferred but not mandatory for legacy applications

The substitute parts 173-E15-211R141, 173-E15-211R241, 174-E15-211R141, and DA15S564GTLF meet the mandatory matching parameters. Variations in current rating, voltage rating, operating temperature range, and compliance status are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: DA15S564GTLF

The DA15S564GTLF is the preferred substitute for the L77DA15SAJ4VFM. Both parts are manufactured by Amphenol ICC, maintain active product status, and are RoHS compliant. The DA15S564GTLF matches the operating temperature range (-55°C ~ 125°C) and voltage rating (300V) of the primary part. Both parts feature tin-plated steel shells and gold contact finishes. The DA15S564GTLF is available in bulk packaging with 1106 units in inventory. The primary design difference is the backset spacing (0.409" versus 0.319"), which requires PCB layout verification before implementation.

Secondary Substitutes: 173-E15-211R141, 173-E15-211R241, 174-E15-211R141

The NorComp Inc. parts (173-E15-211R141, 173-E15-211R241, 174-E15-211R141) are classified as obsolete products and are not RoHS compliant. These parts are suitable only for legacy equipment replacement or applications where RoHS compliance is not required. All three NorComp parts have reduced current ratings (5A versus 7.5A) and narrower operating temperature ranges (-50°C ~ 100°C versus -55°C ~ 125°C). The 173-E15-211R141 and 173-E15-211R241 feature identical backset spacing (0.283"), while the 174-E15-211R141 has a backset spacing of 0.370". The 173-E15-211R241 differs from 173-E15-211R141 in flange feature specification (standard screws versus female screwlock). NorComp parts are available in tray packaging with inventory levels between 1100 and 1328 units.

Frequently Asked Questions (FAQ)

Q: Can the DA15S564GTLF directly replace the L77DA15SAJ4VFM without PCB modifications?

A: The DA15S564GTLF has a different backset spacing (0.409" versus 0.319"). PCB layout verification is required to confirm mounting hole compatibility. If mounting holes are positioned for the L77DA15SAJ4VFM spacing, the DA15S564GTLF will not align correctly without PCB redesign.

Q: Are the NorComp parts suitable for new designs?

A: The NorComp parts (173-E15-211R141, 173-E15-211R241, 174-E15-211R141) are classified as obsolete. These parts are suitable only for replacement in existing legacy equipment. New designs should utilize the active products: L77DA15SAJ4VFM or DA15S564GTLF.

Q: What is the significance of the current rating difference between the L77DA15SAJ4VFM (7.5A) and the substitute parts (5A)?

A: The L77DA15SAJ4VFM supports 7.5A per contact, while the NorComp substitutes support 5A per contact. If the application requires current levels between 5A and 7.5A, the NorComp parts will not meet the design specification. The DA15S564GTLF specifies 5A per contact. Current requirements must be verified against the actual application load before selecting a substitute.

Q: Why do the substitute parts have different operating temperature ranges?

A: The L77DA15SAJ4VFM and DA15S564GTLF both operate from -55°C to 125°C. The NorComp parts operate from -50°C to 100°C due to differences in dielectric material composition and thermal design. Applications requiring operation below -50°C or above 100°C cannot use NorComp substitutes.

Q: What is the difference between the 173-E15-211R141 and 173-E15-211R241?

A: Both parts are manufactured by NorComp Inc. with identical electrical and mechanical specifications. The primary difference is the flange feature: the 173-E15-211R141 has a female screwlock (M3), while the 173-E15-211R241 has standard screws (4-40). The choice between these parts depends on the mating connector type and mounting requirements.

Q: Is RoHS compliance a mandatory requirement for substitution?

A: RoHS compliance is not mandatory for substitution but is strongly preferred for new designs and applications subject to environmental regulations. The L77DA15SAJ4VFM and DA15S564GTLF are both RoHS compliant. The NorComp parts are not RoHS compliant and should be used only in legacy applications where RoHS compliance is not required.

Q: What packaging formats are available for these parts?

A: The L77DA15SAJ4VFM is supplied in standard packaging (932 units in stock). The DA15S564GTLF is supplied in bulk packaging (1106 units in stock). The NorComp parts are supplied in tray packaging (1100-1328 units in stock). Packaging format may affect handling, storage, and integration into manufacturing processes.

Q: Can the backset spacing differences affect connector mating?

A: Backset spacing refers to the distance from the mounting flange to the mating face of the connector. Differences in backset spacing do not affect connector mating compatibility but do affect PCB layout and mounting hole positioning. The L77DA15SAJ4VFM (0.319"), 173-E15-211R141/173-E15-211R241 (0.283"), 174-E15-211R141 (0.370"), and DA15S564GTLF (0.409") have different backset spacings. PCB redesign is required if switching between parts with different backset spacing values.