Request Quote
(Ships tomorrow)
TE Connectivity 5748481-6 D-Sub High Density 26 Position Receptacle Equivalent & Substitute Parts
Part Overview
The TE Connectivity AMP Connectors 5748481-6 is a 26 Position D-Sub High Density Receptacle connector with female sockets, right-angle through-hole mounting, and solder termination. This connector is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to support legacy system maintenance, design continuity, and procurement alternatives where the original part number is unavailable or discontinued.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Style | D-Sub, High Density |
| Connector Type | Receptacle, Female Sockets |
| Number of Positions | 26 |
| Number of Rows | 3 |
| Shell Size, Connector Layout | 2 (DA, A) High Density |
| Mounting Type | Through Hole, Right Angle |
| Termination | Solder |
| Shell Material, Finish | Steel, Nickel Plated |
| Contact Finish | Gold |
| Current Rating (Amps) | 2A |
| Voltage Rating | 125V |
| Operating Temperature | -55°C ~ 105°C |
| Material Flammability Rating | UL94 V-0 |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution of the TE Connectivity 5748481-6 is determined by strict alignment of the following electrical and mechanical parameters:
Critical Matching Parameters:
- Connector style: D-Sub, High Density
- Connector type: Receptacle, Female Sockets
- Number of positions: 26
- Number of rows: 3
- Shell size and layout: 2 (DA, A) High Density
- Mounting type: Through Hole, Right Angle
- Termination method: Solder
- Shell material and finish: Steel, Nickel Plated
- Contact finish: Gold
- Material flammability rating: UL94 V-0
Acceptable Variation Parameters:
- Current rating: Substitute parts rated at 3A per contact exceed the 2A requirement and are acceptable for direct substitution
- Voltage rating: Substitute parts rated at 250V or 300V exceed the 125V requirement and are acceptable for direct substitution
- Operating temperature range: Substitute parts with extended upper temperature limits (-55°C ~ 125°C) are acceptable; lower limits must not exceed -55°C
- Contact finish thickness: Flash or 30.0µin finishes are functionally equivalent
- Backset spacing: 0.350" (8.89mm) is standard for high-density D-Sub connectors and is acceptable
Substitute parts are grouped by manufacturer and product status. Direct substitutes maintain identical form, fit, and function. Similar substitutes meet all critical parameters with acceptable variations in non-critical specifications.
Parameter Comparison
| Parameter | 5748481-6 (Main) | 2311768-2 | 634-026-663-042 | 634-026-663-043 | ICD26S13E4GX00LF | ICD26S13E4GV00LF | L177HDA26SD1CH3R | L177HDA26SD1CH3F |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | TE Connectivity AMP | TE Connectivity AMP | Mercury United Electronics | Mercury United Electronics | Amphenol ICC (FCI) | Amphenol ICC (FCI) | Amphenol ICC (Commercial) | Amphenol ICC (Commercial) |
| Connector Style | D-Sub, High Density | D-Sub, High Density | D-Sub, High Density | D-Sub, High Density | D-Sub, High Density | D-Sub, High Density | D-Sub, High Density | D-Sub, High Density |
| Connector Type | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets | Receptacle, Female Sockets |
| Number of Positions | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Number of Rows | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Shell Size, Connector Layout | 2 (DA, A) High Density | 2 (DA, A) High Density | 2 (DA, A) High Density | 2 (DA, A) High Density | 2 (DA, A) High Density | 2 (DA, A) High Density | 2 (DA, A) High Density | 2 (DA, A) High Density |
| Mounting Type | Through Hole, Right Angle | Through Hole, Right Angle | Board Edge, Through Hole, Right Angle | Board Edge, Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle |
| Termination | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder |
| Shell Material, Finish | Steel, Nickel Plated | Steel, Nickel Plated | Steel, Nickel Plated | Steel, Nickel Plated | Steel, Nickel Plated | Steel, Nickel Plated | Steel, Tin Plated | Steel, Tin Plated |
| Contact Finish | Gold | Gold | Gold | Gold | Gold | Gold | Gold | Gold |
| Contact Finish Thickness | 30.0µin (0.76µm) | 30.0µin (0.76µm) | Flash | Flash | Flash | Flash | 16.0µin (0.41µm) | 16.0µin (0.41µm) |
| Current Rating (Amps) | 2A | 3A | 3A per Contact | 3A per Contact | 3A | 3A | 3A | 3A |
| Voltage Rating | 125V | Not Specified | Not Specified | Not Specified | 300V | 300V | 250V | 250V |
| Operating Temperature | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 85°C | -55°C ~ 85°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 105°C | -55°C ~ 105°C |
| Material Flammability Rating | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 | UL94 V-0 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | RoHS Compliant | RoHS Compliant | RoHS Compliant | RoHS Compliant |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
Primary Substitute: TE Connectivity 2311768-2
The TE Connectivity AMP Connectors 2311768-2 is the direct substitute for the obsolete 5748481-6. Both parts are from the same manufacturer (TE Connectivity AMP Connectors), same series (AMPLIMITE HD-22), and share identical form, fit, and function. The 2311768-2 is classified as Active product status, ensuring long-term availability and supply chain continuity. Current rating is increased to 3A, exceeding the original 2A specification. RoHS3 compliance is maintained. Inventory availability is 5125 units. Packaging is supplied in Tray format.
Secondary Substitutes: Amphenol ICC ICD Series
The Amphenol ICC (FCI) ICD26S13E4GX00LF and ICD26S13E4GV00LF connectors meet all critical mechanical and electrical parameters. Both are Active product status with extended operating temperature range (-55°C ~ 125°C) and higher voltage rating (300V). Current rating is 3A. RoHS compliance is confirmed. The ICD26S13E4GX00LF is supplied in Bulk packaging with 11270 units in inventory. The ICD26S13E4GV00LF is supplied in Tray packaging with 1534 units in inventory. Shell finish is Nickel Plated, matching the original specification.
Tertiary Substitutes: Amphenol ICC Commercial Products HD Series
The Amphenol ICC (Commercial Products) L177HDA26SD1CH3R and L177HDA26SD1CH3F connectors meet all critical parameters with the following considerations: Shell finish is Tin Plated rather than Nickel Plated; contact finish thickness is 16.0µin rather than 30.0µin; contact material is Brass rather than Phosphor Bronze; flange features differ (Board Side M3 for CH3R, Mating Side Female Screwlock M3 for CH3F). Both are Active product status with RoHS compliance. Operating temperature range matches the original (-55°C ~ 105°C). Current rating is 3A. Voltage rating is 250V.
Alternative Substitutes: Mercury United Electronics 634 Series
The Mercury United Electronics 634-026-663-042 and 634-026-663-043 connectors meet critical mechanical parameters with the following considerations: Operating temperature range is reduced to -55°C ~ 85°C; contact material is Copper Alloy rather than Phosphor Bronze; shell finish is Nickel Plated; mounting type includes Board Edge option in addition to Through Hole. Both are Active product status with RoHS3 compliance. Current rating is 3A per contact. Inventory availability is 1036 and 1071 units respectively.
Recommendation Priority:
For direct replacement with maximum compatibility and supply assurance, select TE Connectivity 2311768-2. For applications requiring extended temperature operation or higher voltage rating, select Amphenol ICC ICD26S13E4GX00LF or ICD26S13E4GV00LF. For cost-optimized alternatives with acceptable parameter variations, select Mercury United Electronics 634 series or Amphenol ICC L177HDA26 series.
Frequently Asked Questions (FAQ)
Q: Can the TE Connectivity 2311768-2 be used as a direct replacement for the 5748481-6?
A: Yes. The 2311768-2 is a direct substitute. Both connectors share identical form, fit, and function specifications including connector style, type, position count, shell size, mounting configuration, and termination method. The 2311768-2 is Active product status, ensuring continued availability.
Q: What is the difference between the current ratings of the main part and substitute parts?
A: The main part 5748481-6 is rated at 2A per contact. All substitute parts are rated at 3A per contact. The higher current rating of substitute parts exceeds the original specification and is acceptable for direct substitution in applications requiring the original 2A rating.
Q: Are there differences in operating temperature ranges among the substitute parts?
A: Yes. The main part and TE Connectivity 2311768-2 operate from -55°C to 105°C. Mercury United Electronics 634 series parts operate from -55°C to 85°C, which is a reduced upper temperature limit. Amphenol ICC ICD series parts operate from -55°C to 125°C, which is an extended upper temperature limit. Amphenol ICC L177HDA26 series parts operate from -55°C to 105°C, matching the original. Selection depends on application temperature requirements.
Q: What is the significance of shell finish differences (Nickel Plated vs. Tin Plated)?
A: The main part and most substitute parts feature Nickel Plated steel shells. Amphenol ICC L177HDA26 series parts feature Tin Plated steel shells. Both finishes provide corrosion resistance and are suitable for standard industrial applications. Nickel plating is preferred for applications requiring enhanced corrosion resistance in harsh environments.
Q: How do contact finish thickness variations affect connector performance?
A: The main part specifies 30.0µin (0.76µm) gold contact finish thickness. Substitute parts specify either 30.0µin, 16.0µin (0.41µm), or Flash thickness. All specified thicknesses provide adequate electrical conductivity and contact reliability for signal-level applications. Thicker finishes provide extended contact life in high-cycle mating applications.
Q: Are all substitute parts RoHS compliant?
A: Yes. The main part is ROHS3 Compliant. All substitute parts are either ROHS3 Compliant or RoHS Compliant, meeting regulatory requirements for hazardous substance restrictions.
Q: What packaging options are available for substitute parts?
A: The main part 5748481-6 packaging is not specified. Substitute parts are available in Tray, Bulk, or unspecified packaging formats. Tray packaging is standard for production environments. Bulk packaging is suitable for high-volume applications. Packaging selection does not affect connector form, fit, or function.
Q: Can Mercury United Electronics 634 series parts be used in applications with operating temperatures above 85°C?
A: No. Mercury United Electronics 634 series parts are rated for -55°C to 85°C operation. Applications requiring operation above 85°C must use substitute parts with extended temperature ratings, such as TE Connectivity 2311768-2 (-55°C to 105°C) or Amphenol ICC ICD series (-55°C to 125°C).
Q: What is the difference between the ICD26S13E4GX00LF and ICD26S13E4GV00LF?
A: Both connectors are functionally identical with the following distinction: ICD26S13E4GX00LF features Housing/Shell (4-40) flange configuration and is supplied in Bulk packaging with 11270 units in inventory. ICD26S13E4GV00LF features Mating Side Female Screwlock (4-40) flange configuration and is supplied in Tray packaging with 1534 units in inventory. Selection depends on mounting configuration requirements and packaging preferences.
Q: Are contact material differences between Phosphor Bronze and Copper Alloy significant?
A: The main part uses Phosphor Bronze contacts. Some substitute parts use Copper Alloy contacts. Both materials provide adequate electrical conductivity and contact reliability for signal-level applications. Phosphor Bronze offers superior spring properties and contact durability in high-cycle mating environments. Copper Alloy is suitable for standard industrial applications with moderate mating cycles.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts