TE Connectivity 748027-1 D-Sub Connector: Equivalent & Substitute Parts

Part Overview

The TE Connectivity 748027-1 is a 25-position D-Sub plug connector with male pins, designed for through-hole solder termination. This connector is part of the AMPLIMITE HD-20 series and is classified as an active product. The connector features a vertical orientation with a mating-side female screwlock and is constructed with a tin-plated steel shell and gold-flashed brass contacts.

Substitute parts are identified when equivalent D-Sub connectors share the same functional specifications, connector layout, and electrical ratings while maintaining compatibility with the original application requirements.

Substiute Parts

748027-1

TE Connectivity AMP ConnectorsIn Stock: 952748027-1 Datasheet

Current PartRFQ

5748027-1

TE Connectivity AMP ConnectorsIn Stock: 11465748027-1 Datasheet

DirectRFQ

L717TSBH25POL2RM8

Amphenol ICC (Commercial Products)In Stock: 1789L717TSBH25POL2RM8 Datasheet

SimilarRFQ

L717TSBH25POL2RM8C309

Amphenol ICC (Commercial Products)In Stock: 1670L717TSBH25POL2RM8C309 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TE Connectivity 748027-1 are classified based on the following critical parameters that determine functional equivalence:

Primary Equivalence Criteria:

• Connector style: D-Sub
• Connector type: Plug with male pins
• Number of positions: 25
• Number of rows: 2
• Shell size and layout: 3 (DB, B)
• Mounting type: Through hole
• Termination method: Solder
• Flange feature: Mating side female screwlock (4-40)
• Shell material and finish: Steel, tin plated
• Contact finish: Gold
• Material flammability rating: UL94 V-0
• Features: Board lock and grounding indents

Acceptable Parameter Variations: Substitute parts may differ in the following parameters while maintaining functional compatibility:

• Dielectric material composition (thermoplastic vs. thermoplastic glass-filled)
• Contact material (brass vs. copper alloy)
• Current rating (5A to 6A range)
• Voltage rating (125V to 600V range)
• Operating temperature upper limit (-55°C to 105°C or -55°C to 125°C)
• Contact finish thickness (flash vs. specified microinch)
• Packaging format (tube vs. tray)
• RoHS compliance status

Parameter Comparison

Engineering Selection Recommendations

Direct Substitute (Same Manufacturer):

The TE Connectivity 5748027-1 is a direct substitute for the 748027-1. Both connectors are manufactured by TE Connectivity AMP Connectors and share identical electrical and mechanical specifications. The primary distinction is that 5748027-1 is RoHS compliant, whereas 748027-1 is RoHS non-compliant. The 5748027-1 features a polyester dielectric material compared to the thermoplastic dielectric in the original part. Both maintain the same current rating of 6A, voltage rating of 125V, and operating temperature range of -55°C to 105°C. The 5748027-1 is available in higher inventory (1078 pcs) compared to the original part (906 pcs).

Similar Substitutes (Alternative Manufacturer):

The Amphenol ICC L717TSBH25POL2RM8 and L717TSBH25POL2RM8C309 are similar substitutes from an alternative manufacturer. These connectors maintain the same D-Sub 25-position configuration, shell size, mounting type, and termination method. Both Amphenol parts are RoHS compliant and feature an extended operating temperature range of -55°C to 125°C compared to the original part's -55°C to 105°C range. The Amphenol connectors have a higher voltage rating of 600V versus the original 125V rating. Current ratings for the Amphenol parts are 5A, which is lower than the original 6A rating. The Amphenol parts use copper alloy contacts and thermoplastic glass-filled dielectric material. The L717TSBH25POL2RM8C309 specifies a contact finish thickness of 30.0µin (0.76µm), whereas the L717TSBH25POL2RM8 uses flash plating. Both Amphenol parts are packaged in trays rather than tubes.

Compliance Considerations:

Applications requiring RoHS compliance should utilize either the TE Connectivity 5748027-1 or the Amphenol ICC alternatives. The original 748027-1 is RoHS non-compliant and is suitable only for applications where RoHS compliance is not mandated. All substitute parts maintain REACH affected status and EAR99 ECCN classification consistent with the original part.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 5748027-1 be used as a direct replacement for the 748027-1?

A: Yes. The 5748027-1 is a direct substitute with identical connector specifications, electrical ratings, and mechanical dimensions. The primary difference is RoHS compliance status and dielectric material composition (polyester vs. thermoplastic). Both parts are manufactured by TE Connectivity AMP Connectors and are part of the AMPLIMITE HD-20 series.

Q: What are the key differences between the TE Connectivity 748027-1 and the Amphenol ICC L717TSBH25POL2RM8?

A: Both connectors share the same D-Sub 25-position configuration, shell size (3/DB/B), mounting type (through hole), and termination method (solder). The Amphenol part has a higher voltage rating (600V vs. 125V), extended operating temperature range (-55°C to 125°C vs. -55°C to 105°C), and lower current rating (5A vs. 6A). The Amphenol part uses copper alloy contacts and glass-filled thermoplastic dielectric material, whereas the original uses brass contacts and thermoplastic dielectric. The Amphenol part is RoHS compliant and packaged in trays.

Q: Are the Amphenol ICC L717TSBH25POL2RM8 and L717TSBH25POL2RM8C309 interchangeable?

A: Both Amphenol parts are functionally equivalent with identical connector specifications and electrical ratings. The L717TSBH25POL2RM8C309 specifies a contact finish thickness of 30.0µin (0.76µm), whereas the L717TSBH25POL2RM8 uses flash plating. Both parts are RoHS compliant, packaged in trays, and available in high inventory quantities.

Q: What is the significance of the packaging difference between tube and tray formats?

A: The original 748027-1 and TE Connectivity 5748027-1 are packaged in tubes, while the Amphenol ICC alternatives are packaged in trays. Packaging format does not affect connector functionality or electrical performance. Selection between tube and tray packaging depends on handling, storage, and assembly line requirements specific to the application.

Q: Can the Amphenol ICC parts be used in applications with a 125V voltage requirement?

A: Yes. The Amphenol ICC L717TSBH25POL2RM8 and L717TSBH25POL2RM8C309 are rated for 600V, which exceeds the 125V requirement of the original application. The higher voltage rating provides additional safety margin and does not create compatibility issues in lower-voltage applications.

Q: What is the impact of the current rating difference between the original part (6A) and the Amphenol substitutes (5A)?

A: The Amphenol ICC parts have a lower current rating of 5A compared to the original 6A rating. Applications requiring current levels between 5A and 6A must use the original TE Connectivity 748027-1 or 5748027-1. Applications with current requirements at or below 5A can utilize the Amphenol alternatives.

Q: Are all substitute parts REACH affected?

A: Yes. The original TE Connectivity 748027-1, the direct substitute 5748027-1, and both Amphenol ICC alternatives are classified as REACH affected. All parts maintain EAR99 ECCN classification.