172-E25-212-021 D-Sub Receptacle Equivalent & Substitute Parts

Part Overview

The 172-E25-212-021 is a 25 Position D-Sub Receptacle connector manufactured by NorComp Inc., featuring female sockets with panel mount and solder termination. This connector is designed for applications requiring reliable signal transmission in D-Sub configurations with a 2-row, 25-position layout (Shell Size 3, DB/B configuration). The part is currently active with 858 pieces in stock.

Equivalent and substitute parts are identified based on matching core electrical and mechanical parameters: connector type (receptacle, female sockets), position count (25), shell size (3/DB/B), mounting configuration, termination method (solder), and material specifications. These alternatives provide design flexibility while maintaining functional compatibility within the specified parameter constraints.

Substiute Parts

172-E25-212-021

NorComp Inc.In Stock: 942172-E25-212-021 Datasheet

Current PartRFQ

172-E25-213R021

NorComp Inc.In Stock: 939172-E25-213R021 Datasheet

DirectRFQ

5745886-1

TE Connectivity AMP ConnectorsIn Stock: 353845745886-1 Datasheet

SimilarRFQ

628-025-220-047

Mercury United Electronics, Inc.In Stock: 1658628-025-220-047 Datasheet

SimilarRFQ

628-025-221-042

Mercury United Electronics, Inc.In Stock: 1175628-025-221-042 Datasheet

SimilarRFQ

D25S24A6RL22LF

Amphenol ICC (FCI)In Stock: 867D25S24A6RL22LF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 172-E25-212-021 are grouped based on strict adherence to the following critical parameters that determine functional compatibility:

Core Matching Parameters:

• Connector Type: Receptacle with Female Sockets
• Position Count: 25 positions
• Row Configuration: 2 rows
• Shell Size & Layout: 3 (DB, B)
• Termination Method: Solder
• Contact Finish: Gold
• Flammability Rating: UL94 V-0

Allowed Variation Parameters:

• Manufacturer (different vendors providing equivalent specifications)
• Mounting Type (Panel Mount, Through Hole, or combinations thereof)
• Shell Material Finish (Nickel Plated or Tin Plated)
• Contact Material (Brass, Phosphor Bronze, or Copper Alloy)
• Current Rating (within signal-grade specifications: 3A to 6A per contact)
• Operating Temperature Range (within industrial specifications)
• Packaging Format (Tray, Bulk, Tube, Tape & Reel)
• Dielectric Material (Polyamide, Polyester Thermoplastic, or Liquid Crystal Polymer)

Substitutes are identified from manufacturers including TE Connectivity AMP Connectors, Mercury United Electronics Inc., and Amphenol ICC (FCI), all meeting the core D-Sub 25-position receptacle specification with solder termination and gold contact finish.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain active product status and meet the core D-Sub 25-position receptacle specification with solder termination and gold contact finish. Selection among substitutes is based on the following engineering criteria:

Direct NorComp Equivalent: 172-E25-213R021 is the closest substitute, sharing the same manufacturer (NorComp Inc.) and series designation (172-E). Both parts feature identical connector configuration, panel mount capability, and ROHS3 compliance. This part is recommended when maintaining manufacturer consistency is a design requirement.

TE Connectivity Alternative (5745886-1): This part provides the highest current rating (6A) and extended operating temperature range (-55°C to 105°C). The AMPLIMITE HD-20 series offers superior thermal performance and is suitable for applications requiring higher current capacity. Tin plating on the shell provides an alternative finish option. RoHS compliance is confirmed.

Mercury United Electronics Alternatives (628-025-220-047, 628-025-221-042): Both Mercury parts maintain ROHS3 compliance and nickel-plated steel shells. The 628-025-221-042 includes panel mount capability matching the original part. The 628-025-220-047 features board lock and shielding characteristics. Current ratings range from 3A to 5A per contact. Operating temperature range is -55°C to 85°C.

Amphenol ICC Alternative (D25S24A6RL22LF): The Delta D series part offers the highest voltage rating (300V) and features liquid crystal polymer dielectric material with glass filling for enhanced mechanical properties. Solder paste termination supports automated assembly processes. RoHS compliance is confirmed. This part is suitable for high-reliability applications requiring superior dielectric performance.

All substitutes are confirmed active products with current manufacturing status and adequate inventory availability.

Frequently Asked Questions (FAQ)

Q: What are the critical parameters that determine if a part can substitute for the 172-E25-212-021?

A: The following parameters must match exactly: connector type (receptacle with female sockets), position count (25), row configuration (2 rows), shell size and layout (3/DB/B), termination method (solder), contact finish (gold), and flammability rating (UL94 V-0). Variations in manufacturer, mounting type, shell finish, contact material, current rating, operating temperature, and dielectric material are permitted within the specified ranges.

Q: Can I use a part with a different mounting type?

A: Yes, with design consideration. The original part specifies Panel Mount with Through Hole capability. Substitutes with Through Hole only (such as 5745886-1 and D25S24A6RL22LF) are functionally compatible but require board-level mounting without panel flange integration. Parts with Panel Mount capability (172-E25-213R021 and 628-025-221-042) provide direct mounting compatibility.

Q: What is the difference between Nickel Plated and Tin Plated shell finishes?

A: Both finishes provide corrosion resistance on steel shells. Nickel plating offers superior corrosion resistance in harsh environments and is specified on most substitutes. Tin plating (5745886-1) provides adequate protection for standard industrial applications. Selection depends on environmental exposure requirements.

Q: Are all substitutes RoHS compliant?

A: Yes. All listed substitutes meet either ROHS3 or RoHS compliance standards. The original part is ROHS3 compliant. All substitutes are suitable for applications with RoHS compliance requirements.

Q: What packaging options are available?

A: Substitutes are available in multiple packaging formats: Tray (172-E25-213R021, 628-025-220-047), Bulk (628-025-221-042), Tube (5745886-1), and Tape & Reel (D25S24A6RL22LF). Packaging selection depends on assembly process requirements and volume considerations.

Q: Which substitute offers the best performance for high-current applications?

A: The 5745886-1 (TE Connectivity) provides the highest current rating at 6A per contact and the widest operating temperature range (-55°C to 105°C). This part is recommended for applications requiring maximum current capacity and thermal performance.

Q: Which substitute is best for automated assembly?

A: The D25S24A6RL22LF (Amphenol ICC) features solder paste termination and includes a pick and place cap, making it optimized for automated surface mount and wave soldering processes. This part is recommended for high-volume manufacturing environments.

Q: Can I mix different substitute parts in the same design?

A: All listed substitutes are functionally equivalent within the specified parameter constraints and can be used interchangeably in the same circuit design. However, manufacturing consistency and supply chain management typically favor standardizing on a single part number per design.