A-DF25LL-TL-B-R D-Sub Receptacle Equivalent & Substitute Parts

Part Overview

The A-DF25LL-TL-B-R is a 25-position D-Sub receptacle connector manufactured by Assmann WSW Components, featuring female sockets with solder cup termination. This connector is classified as obsolete, making identification of active equivalent parts essential for ongoing procurement and system maintenance. The part operates across industrial temperature ranges (-55°C to 105°C) with gold-plated brass contacts rated for 3A at 250V, suitable for signal-level applications requiring reliable D-Sub connectivity.

Substiute Parts

A-DF25LL-TL-B-R

Assmann WSW ComponentsIn Stock: 1017A-DF25LL-TL-B-R Datasheet

Current PartRFQ

A-DF 25 LL/Z

Assmann WSW ComponentsIn Stock: 1000A-DF 25 LL/Z Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for D-Sub receptacle connectors is determined by strict equivalence across the following parameters:

• Connector type (Receptacle, Female Sockets)
• Position count and row configuration (25 positions, 2 rows)
• Shell size and layout (Size 3, DB/B configuration)
• Mounting method (Free Hanging, In-Line)
• Termination style (Solder Cup)
• Electrical ratings (3A current, 250V voltage)
• Operating temperature range (-55°C ~ 105°C)
• Contact material and finish (Brass with gold flash)
• Flange feature (Unthreaded housing/shell)

The substitute part A-DF 25 LL/Z meets all these criteria and represents the active equivalent for the obsolete A-DF25LL-TL-B-R.

Parameter Comparison

Engineering Selection Recommendations

The A-DF 25 LL/Z is the direct active equivalent for the obsolete A-DF25LL-TL-B-R. Both parts are manufactured by Assmann WSW Components and maintain identical electrical, mechanical, and environmental specifications. The substitute part carries Active product status, ensuring ongoing availability and supply chain continuity. Both parts comply with UL94 V-0 flammability requirements and are REACH Unaffected, meeting regulatory compliance standards for industrial applications. The A-DF 25 LL/Z is supplied in Tray packaging, whereas the original part status does not specify packaging format. This substitution provides full functional and electrical compatibility for D-Sub 25-position receptacle applications.

Frequently Asked Questions (FAQ)

Q: Can A-DF 25 LL/Z be used as a direct replacement for A-DF25LL-TL-B-R?

A: Yes. Both connectors are electrically and mechanically equivalent across all specified parameters, including position count, shell size, termination method, current and voltage ratings, and operating temperature range.

Q: What is the primary difference between these two part numbers?

A: The A-DF25LL-TL-B-R is classified as obsolete, while A-DF 25 LL/Z maintains Active product status. The substitute part is supplied in Tray packaging format.

Q: Are there any compliance or certification differences?

A: No. Both parts share identical compliance certifications: UL94 V-0 flammability rating, REACH Unaffected status, and EAR99 ECCN classification.

Q: Does the packaging format affect connector performance?

A: No. Packaging format (Tray versus unspecified) does not affect electrical or mechanical performance. It impacts only logistics and storage considerations.

Q: What electrical parameters must match for D-Sub 25-position receptacle substitution?

A: Current rating (3A), voltage rating (250V), contact material (Brass), contact finish (Gold flash), and operating temperature range (-55°C ~ 105°C) must remain constant.

Q: Are the dielectric materials identical?

A: Yes. Both parts use Polybutylene Terephthalate (PBT) with glass filling as the dielectric material.