L77DB25SCVF

Part Overview

The L77DB25SCVF is a 25 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 classified as an Active product. The identification of substitute parts becomes necessary when the primary component reaches end-of-life status, experiences supply constraints, or when design requirements demand compatibility with alternative connector series while maintaining equivalent electrical and mechanical performance.

Substiute Parts

L77DB25SCVF

Amphenol ICC (Commercial Products)In Stock: 1142L77DB25SCVF Datasheet

Current PartRFQ

174-025-212R141

NorComp Inc.In Stock: 1186174-025-212R141 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the L77DB25SCVF is determined by the following critical parameters that must align with the main part:

• Connector Configuration: 25-position D-Sub receptacle with female sockets
• Shell Size: Size 3 (DB, B) designation
• Mounting Method: Through-hole, right-angle orientation
• Termination Technology: Solder attachment
• Electrical Performance: Current rating minimum 5A, voltage rating minimum 300V (where specified)
• Operating Temperature: Minimum range of -50°C to 100°C
• Contact Material and Finish: Brass base with gold plating
• Compliance Standards: UL94 V-0 flammability rating and RoHS/ROHS3 compliance

The substitute part 174-025-212R141 manufactured by NorComp Inc. meets these core substitution criteria with documented compatibility for equivalent applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: L77DB25SCVF is the recommended choice for new designs and procurement due to its Active product status, establishing reliable long-term availability and uninterrupted manufacturing support from Amphenol ICC.

Substitute Consideration: 174-025-212R141 serves as a functional equivalent for existing installations or applications where component inventory management necessitates a replacement. This substitution remains valid based on core electrical compatibility and mechanicalInterface alignment despite the following limitations:

1. Product Status Consideration: The substitute part is classified as Obsolete, indicating discontinued manufacturing. Procurement for this component should proceed with awareness of restricted future availability.

2. Electrical Performance Variance: The current rating of 174-025-212R141 is specified at 5A compared to the 7.5A rating of the L77DB25SCVF. Circuit designs operating within 5A parameters permit direct substitution without functional compromise.

3. Thermal Operating Range: The substitute part supports -50°C to 100°C operation, compared to -55°C to 125°C for the primary part. Applications within the narrower range remain unaffected by this differential.

4. Compliance Alignment: Both components satisfy UL94 V-0 flammability requirements and maintain RoHS/ROHS3 compliance standards appropriate for electronic assembly manufacturing.

5. Mounting Interface: The 174-025-212R141 features panel mount capability in addition to through-hole mounting, providing optional installation flexibility.

Frequently Asked Questions (FAQ)

Q: Can 174-025-212R141 replace L77DB25SCVF in all applications?

A: Substitution is viable for applications where circuit current requirements do not exceed 5A and operating temperature remains within -50°C to 100°C. The core connector interface, termination method, and shell geometry are equivalent. Verify application specifications against the current and temperature limitations of the substitute part.

Q: What is the primary difference between these two connectors?

A: The L77DB25SCVF is manufactured by Amphenol ICC with Active product status and 7.5A current rating. The 174-025-212R141 is manufactured by NorComp Inc., classified as Obsolete, and rated at 5A. Both connectors share identical 25-position D-Sub receptacle configuration, Size 3 shell geometry, and solder termination.

Q: Are there compatibility concerns with backset spacing differences?

A: The L77DB25SCVF has 0.319" (8.10mm) backset spacing, while 174-025-212R141 has 0.370" (9.40mm). This differential affects panel-mounted installation dimensions and mating interface geometry. Verify physical mounting clearances and connector positioning in existing PCB or housing designs before substitution.

Q: Does the contact finish difference affect electrical performance?

A: Both connectors employ gold-plated brass contacts. The L77DB25SCVF specifies 8.00µin gold plating thickness, while 174-025-212R141 uses flash gold plating. For standard signaling applications within rated electrical parameters, this finish differential does not impact functional compatibility. Applications requiring enhanced corrosion resistance or specific contact wear characteristics should reference detailed surface finish specifications.

Q: What is the status of RoHS compliance for these parts?

A: The L77DB25SCVF is RoHS Compliant. The 174-025-212R141 is ROHS3 Compliant, representing a later revision of the same environmental and hazardous substance restriction standard. Both components satisfy contemporary electronics manufacturing compliance requirements.