TE Connectivity 749621-2 D-Type Plug Connector: Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 749621-2 is a 26-position D-Type plug connector with male pins, designed for IDC ribbon cable termination. This connector belongs to the AMPLIMITE .050 III series and is classified as a free-hanging, in-line connector with shielded construction. The part is currently active in production and maintains a stock inventory of 1001 pieces in new original condition. D-Type connectors of this configuration are essential in applications requiring standardized, compact multi-pin interconnections with reliable signal transmission across industrial, telecommunications, and data processing equipment. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and compatibility with existing connector ecosystems.

Substiute Parts

749621-2

TE Connectivity AMP ConnectorsIn Stock: 1099749621-2 Datasheet

Current PartRFQ

5749621-2

TE Connectivity AMP ConnectorsIn Stock: 23685749621-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of D-Type plug connectors is determined by strict equivalence across electrical, mechanical, and environmental parameters. The primary criteria for establishing a valid substitute relationship include:

Electrical Parameters: Connector type (plug with male pins), number of positions (26), number of rows (2), current rating (1A), and voltage rating (30V) must be identical. Contact material (phosphor bronze) and contact finish (gold) ensure consistent electrical performance and signal integrity.

Mechanical Parameters: Shell size and connector layout (0.050 pitch x 0.100 row to row), mounting type (free hanging, in-line), and termination method (IDC ribbon cable) must match precisely to ensure physical compatibility with mating receptacles and cable assemblies.

Environmental Parameters: Operating temperature range (-55°C to 105°C), material flammability rating (UL94 V-0), and moisture sensitivity level (1, unlimited) establish functional equivalence under specified environmental conditions.

Construction Features: Shielded construction, steel shell with tin-nickel plating, and thermoplastic dielectric material are mandatory for electromagnetic compatibility and mechanical durability.

The substitute part 5749621-2 satisfies all these criteria and is therefore classified as a direct equivalent to the primary part 749621-2.

Parameter Comparison

Engineering Selection Recommendations

Both the primary part 749621-2 and the substitute part 5749621-2 are active products manufactured by TE Connectivity AMP Connectors within the AMPLIMITE .050 III series. The parts are electrically and mechanically equivalent across all specified parameters.

Compliance Considerations: The substitute part 5749621-2 carries RoHS Compliant certification, whereas the main part 749621-2 is marked as not applicable for RoHS status. Organizations operating under RoHS regulatory requirements should prioritize the substitute part 5749621-2 for new designs and procurement activities.

Supply Chain Availability: The substitute part 5749621-2 maintains higher inventory availability (2275 pieces) compared to the main part 749621-2 (1001 pieces), providing improved supply chain flexibility for high-volume applications.

Regulatory Status: Both parts carry identical ECCN classification (EAR99) and are subject to REACH regulations. The main part 749621-2 is marked as REACH Affected, while the substitute part 5749621-2 shows vendor undefined status for REACH compliance. Organizations requiring explicit REACH documentation should verify current compliance status with the manufacturer or authorized distributor.

Selection Basis: Component selection between these two equivalent parts should be determined by organizational compliance requirements, inventory availability, and regulatory obligations rather than electrical or mechanical performance differences.

Frequently Asked Questions (FAQ)

Q: Are the 749621-2 and 5749621-2 connectors physically interchangeable?

A: Yes. Both connectors share identical mechanical specifications including shell size (0.050 pitch x 0.100 row to row), mounting type (free hanging, in-line), and termination method (IDC ribbon cable). They are directly interchangeable in applications requiring 26-position D-Type plug connectors with male pins.

Q: What are the electrical performance differences between these two parts?

A: There are no electrical performance differences. Both parts carry identical current rating (1A), voltage rating (30V), contact material (phosphor bronze), contact finish (gold), and operating temperature range (-55°C to 105°C).

Q: Why does the substitute part 5749621-2 show RoHS Compliant status while the main part does not?

A: The RoHS status difference reflects the regulatory classification assigned by the manufacturer at the time of product documentation. The substitute part 5749621-2 is explicitly certified as RoHS Compliant, making it the preferred choice for applications subject to RoHS directives. Organizations requiring RoHS compliance should specify part number 5749621-2.

Q: Can I use these connectors in high-temperature applications?

A: Both connectors are rated for operating temperatures from -55°C to 105°C. Applications requiring operation outside this range require alternative connector designs.

Q: What is the significance of the shielded construction?

A: Shielded construction in both connectors provides electromagnetic interference (EMI) protection, ensuring signal integrity in environments with electrical noise. This feature is standard across both the main part and substitute part.

Q: Are there any differences in packaging or inventory considerations?

A: Both parts are supplied in bulk packaging. The substitute part 5749621-2 maintains higher inventory availability (2275 pieces) compared to the main part 749621-2 (1001 pieces), which may influence procurement decisions for large-volume orders.

Q: What does the AMPLIMITE .050 III series designation indicate?

A: AMPLIMITE .050 III is the product series designation from TE Connectivity AMP Connectors. The ".050" refers to the contact pitch specification (0.050 inches), and "III" indicates the generation or revision level of the connector design. Both parts belong to this identical series.

Q: Are these connectors suitable for ribbon cable termination?

A: Yes. Both connectors feature IDC (Insulation Displacement Contact) termination, which is specifically designed for direct ribbon cable connection without requiring individual wire stripping or soldering.