L177DFB25SARM6 Equivalent & Substitute Parts

Part Overview

The L177DFB25SARM6 is a 25-position D-Sub receptacle connector manufactured by Amphenol ICC (Commercial Products). This female socket connector features right-angle solder termination and panel mount through-hole mounting with board lock and mounting bracket features. The connector is rated for 7.5A current and 300V voltage operation across an operating temperature range of -55°C to 125°C. The part is currently active in production with 999 pieces in stock. Equivalent and substitute parts are necessary to address supply chain flexibility, packaging requirements, compliance specifications, and alternative contact material compositions while maintaining functional compatibility in D-Sub 25-position receptacle applications.

Substiute Parts

L177DFB25SARM6

Amphenol ICC (Commercial Products)In Stock: 1091L177DFB25SARM6 Datasheet

Current PartRFQ

DB25S564CTLF

Amphenol ICC (FCI)In Stock: 1381DB25S564CTLF Datasheet

SimilarRFQ

DB25S564GTLF

Amphenol ICC (FCI)In Stock: 1318DB25S564GTLF Datasheet

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DB25S565MTLF

Amphenol ICC (FCI)In Stock: 974DB25S565MTLF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the L177DFB25SARM6 is determined by strict equivalence across the following critical parameters: connector style (D-Sub), connector type (receptacle with female sockets), position count (25), row configuration (2), shell size (3/DB/B), mounting method (through-hole, right-angle), termination type (solder), shell material and finish (steel, tin plated), flange feature (unthreaded housing), material flammability rating (UL94 V-0), operating temperature range (-55°C to 125°C), and contact type (signal).

The substitute parts DB25S564CTLF, DB25S564GTLF, and DB25S565MTLF meet these core substitution criteria. Variations exist in current rating specifications, contact material composition, contact finish thickness, backset spacing, packaging format, and regulatory compliance status. These variations do not prevent functional substitution but establish distinct use cases based on application requirements and supply chain considerations.

Parameter Comparison

Engineering Selection Recommendations

All four parts maintain active product status and are manufactured by Amphenol ICC. The L177DFB25SARM6 is RoHS non-compliant, while substitute parts DB25S564CTLF, DB25S564GTLF, and DB25S565MTLF are RoHS compliant. Selection between substitute parts depends on specific application requirements:

DB25S564CTLF is suitable for applications requiring RoHS compliance with standard gold contact finish and phosphor bronze contact material. This part is packaged in trays and provides 5A per contact current rating.

DB25S564GTLF offers RoHS compliance with enhanced GXT™ gold contact finish technology and copper alloy contact material. This part is packaged in bulk format and maintains 300V voltage rating specification with board lock feature. Current rating is 5A per contact.

DB25S565MTLF provides RoHS compliance with GXT™ gold contact finish, phosphor bronze contact material, and 30.0µin contact finish thickness matching the original part specification. This part includes mounting brackets and is packaged in trays. Current rating is 5A per contact.

Applications requiring the original 7.5A current rating specification must use the L177DFB25SARM6, as all substitute parts are rated at 5A per contact. Applications with RoHS compliance requirements must select from the three substitute options. Applications requiring specific contact material composition should reference the contact material specifications in the parameter comparison table.

Frequently Asked Questions (FAQ)

Q: Can DB25S564CTLF, DB25S564GTLF, or DB25S565MTLF be used as direct replacements for L177DFB25SARM6?

A: These parts are functionally equivalent for D-Sub 25-position receptacle applications with identical connector style, position count, shell size, mounting method, and termination type. However, the substitute parts are rated at 5A per contact compared to the original 7.5A rating. Applications requiring the full 7.5A current capacity must use the L177DFB25SARM6.

Q: What is the difference between the three substitute parts?

A: DB25S564CTLF uses phosphor bronze contacts with flash gold finish and is packaged in trays. DB25S564GTLF uses copper alloy contacts with GXT™ gold finish, is packaged in bulk, and specifies 300V voltage rating. DB25S565MTLF uses phosphor bronze contacts with GXT™ gold finish at 30.0µin thickness, includes mounting brackets, and is packaged in trays. All three are RoHS compliant.

Q: Are there compliance differences between the original part and substitutes?

A: Yes. The L177DFB25SARM6 is RoHS non-compliant. All three substitute parts (DB25S564CTLF, DB25S564GTLF, DB25S565MTLF) are RoHS compliant. Applications subject to RoHS regulations must use one of the substitute parts.

Q: What is the significance of GXT™ contact finish on DB25S564GTLF and DB25S565MTLF?

A: GXT™ is an enhanced gold contact finish technology. DB25S564GTLF specifies flash thickness, while DB25S565MTLF specifies 30.0µin (0.76µm) thickness, matching the original part specification.

Q: Does packaging format affect connector performance?

A: Packaging format (tray, bulk, or unspecified) does not affect connector electrical or mechanical performance. Packaging selection is determined by supply chain requirements, handling procedures, and inventory management practices.

Q: What contact material differences exist between the parts?

A: The L177DFB25SARM6 and DB25S564GTLF use copper alloy contacts. DB25S564CTLF and DB25S565MTLF use phosphor bronze contacts. Both materials are suitable for signal-level D-Sub applications and maintain compatibility with standard D-Sub plug connectors.

Q: Can I use a substitute part if my application requires panel mount configuration?

A: The L177DFB25SARM6 specifies panel mount, through-hole, right-angle mounting. The substitute parts specify through-hole, right-angle mounting without explicit panel mount designation. Verify mounting bracket availability and mechanical fit requirements for your specific application before substitution.

Q: What is the voltage rating difference between parts?

A: The L177DFB25SARM6 and DB25S564GTLF and DB25S565MTLF specify 300V voltage rating. DB25S564CTLF does not specify a voltage rating in the provided data. Applications with specific voltage requirements should reference the 300V-rated parts.