Equivalent & Substitute Parts Reference: AB939

Part Overview

Manufacturer part number AB939 by Assmann WSW Components is categorized under D-Sub, D-Shaped Connectors. It functions as a 25, 25 position gender changer connector with a silver color and plastic material. This product is marked obsolete, which necessitates the identification and selection of compatible substitute models with matching electrical and mechanical parameters and compliant certifications within the same connector category.

Substiute Parts

AB939

Assmann WSW ComponentsIn Stock: 969AB939 Datasheet

Current PartRFQ

957-025-020R121

NorComp Inc.In Stock: 735957-025-020R121 Datasheet

MFR RecommendedRFQ

957-025-020R121

NorComp Inc.In Stock: 735957-025-020R121 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are grouped strictly on the basis of the following allowed electrical and mechanical parameters: accessory type (gender changer), number of positions (25, 25), compatible shell size (B, B), compatible D-Sub size ((25pos and HD44pos) and (25pos and HD44pos)), and color (silver). Only parts matching these parameters within the same product category (D-Sub, D-Shaped Connectors) are listed as substitutes. Compliance status and certifications, including RoHS and REACH, are parameters for consideration but do not affect basic form and function.

Parameter Comparison

Engineering Selection Recommendations

AB939 is obsolete and RoHS non-compliant. Substitute part 957-025-020R121, NorComp Inc., is listed as active and ROHS3 compliant within the same D-Sub, D-Shaped Connectors category. Both parts have REACH status unaffected and match all required accessory, position, and mechanical parameters. Selection for use in RoHS compliant applications should favor the substitute part with verified RoHS compliance.

Frequently Asked Questions (FAQ)

Q1: Which key parameters ensure compatibility when selecting a substitute for AB939?
A1: Important parameters are accessory type (gender changer), number of positions (25, 25), compatible shell size (B, B), compatible D-Sub size ((25pos and HD44pos) and (25pos and HD44pos)), material, color, and status in the same D-Sub, D-Shaped Connectors category.

Q2: Does the substitute 957-025-020R121 differ in product certification from AB939?
A2: 957-025-020R121 is ROHS3 compliant and REACH unaffected. AB939 is RoHS non-compliant but REACH unaffected.

Q3: Is mechanical fit assured between AB939 and 957-025-020R121?
A3: Both parts share matching accessory type, number of positions, shell size, and D-Sub size, ensuring standardized mechanical fit within the specified category.

Q4: Are there packaging differences to consider between AB939 and the substitute?
A4: AB939 packaging is unspecified; 957-025-020R121 is packaged in a bag. Packaging type may affect handling and logistics but does not affect functional compatibility.

Q5: Why is substitution necessary for AB939?
A5: AB939 is marked obsolete; substitute selection is required for continuity in applications where this connector type and position are specified.