D25S91C4PL00 Equivalent & Substitute Parts

Part Overview

The D25S91C4PL00 is a 25-position D-Sub receptacle connector with female sockets, manufactured by Amphenol ICC (FCI) in the Delta D series. This connector features press-fit termination, through-hole mounting, and is rated for 5A per contact at 300V. The part is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations where legacy compatibility is required.

Substiute Parts

D25S91C4PL00

Amphenol ICC (FCI)In Stock: 731D25S91C4PL00 Datasheet

Current PartRFQ

D25S91C4PL00LF

Amphenol ICC (FCI)In Stock: 1022D25S91C4PL00LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the D25S91C4PL00 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Connector type: Receptacle, Female Sockets
• Number of positions: 25
• Number of rows: 2
• Shell size and layout: 3 (DB, B)
• Mounting type: Through Hole
• Termination method: Press-Fit
• Current rating: 5A per contact
• Voltage rating: 300V
• Operating temperature range: -55°C to 125°C
• Contact material: Phosphor Bronze
• Contact finish: Gold (Flash)
• Dielectric material: Polybutylene Terephthalate (PBT)
• Flange feature: Housing/Shell (M3)
• Material flammability rating: UL94 V-0

Allowable Variations:

• Shell material finish: Steel, Tin Plated (original) to Steel, Tin-Nickel Plated (substitute)
• Product status: Obsolete to Active
• RoHS compliance: Non-compliant to Compliant
• Packaging format: Bulk to Tray

The D25S91C4PL00LF qualifies as a direct substitute based on full parameter alignment with allowable variations in shell finish, product status, and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The D25S91C4PL00LF is the primary substitute for the obsolete D25S91C4PL00. Selection between these parts depends on regulatory and compliance requirements:

Use D25S91C4PL00LF when:

• RoHS compliance is required for new designs or system updates
• Active product support and ongoing availability are necessary
• Tin-Nickel plated shell finish meets application corrosion resistance requirements
• Tray packaging is compatible with assembly processes

Use D25S91C4PL00 when:

• Legacy systems require exact original component specifications
• RoHS non-compliance is acceptable for the application
• Tin-plated shell finish is specifically required

The shell finish variation from Tin Plated to Tin-Nickel Plated represents an improvement in corrosion resistance and environmental durability. Both finishes are compatible with the same contact materials and electrical specifications.

Frequently Asked Questions (FAQ)

Q: Can D25S91C4PL00LF be used as a direct replacement for D25S91C4PL00?

A: Yes. The D25S91C4PL00LF maintains full electrical and mechanical compatibility with the D25S91C4PL00. The primary differences are product status (Active vs. Obsolete), RoHS compliance, shell finish (Tin-Nickel vs. Tin), and packaging format (Tray vs. Bulk). All critical parameters including connector type, pin count, termination method, current and voltage ratings, and operating temperature range are identical.

Q: What is the significance of the shell finish change from Tin Plated to Tin-Nickel Plated?

A: Tin-Nickel plating provides enhanced corrosion resistance compared to Tin plating alone, particularly in humid or chemically aggressive environments. Both finishes maintain the same electrical performance and contact reliability. The change represents a material improvement in environmental durability.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS compliance is a regulatory requirement related to hazardous substance restrictions and does not impact electrical characteristics, current capacity, voltage rating, or operating temperature range. Both RoHS-compliant and non-compliant versions perform identically in electrical applications.

Q: Are the press-fit termination specifications identical between the two parts?

A: Yes. Both D25S91C4PL00 and D25S91C4PL00LF use identical press-fit termination specifications. Press-fit contact geometry, insertion force, and retention characteristics are the same.

Q: What packaging considerations apply when switching from D25S91C4PL00 to D25S91C4PL00LF?

A: The original part uses bulk packaging while the substitute uses tray packaging. Tray packaging typically provides better protection during storage and handling, and is more compatible with automated assembly processes. Verify that tray packaging is compatible with your receiving, storage, and assembly workflows.

Q: Can these connectors be used in high-temperature applications?

A: Yes. Both parts are rated for operating temperatures from -55°C to 125°C. The PBT dielectric material and phosphor bronze contacts maintain performance across this full range.