TE Connectivity 745203-2 D-Sub Plug 9-Position IDC Connector

Part Overview

The TE Connectivity 745203-2 is a 9-position D-Sub plug connector with male pins, designed for IDC (Insulation Displacement Contact) and discrete wire termination. This connector belongs to the AMPLIMITE HDE-20 series and features a DE/E shell size (Size 1) with free-hanging, in-line mounting configuration. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity and ensure long-term component availability for new designs and field replacements.

Substiute Parts

745203-2

TE Connectivity AMP ConnectorsIn Stock: 918745203-2 Datasheet

Current PartRFQ

745203-9

TE Connectivity AMP ConnectorsIn Stock: 1133745203-9 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 745203-2 is based on strict electrical and mechanical parameter equivalence within the TE Connectivity AMPLIMITE HDE-20 series. The substitute part 745203-9 maintains identical specifications across all critical functional parameters: connector style, type, position count, row configuration, shell size, mounting method, termination capability, voltage rating, temperature range, and contact material composition.

The primary differentiators between the main part and its substitute are product status (obsolete versus active) and compliance certifications. The 745203-9 is an active production part with ROHS3 compliance, whereas the 745203-2 is RoHS non-compliant. Both parts share the same base product number (745203) and are manufactured by TE Connectivity AMP Connectors, confirming their functional interchangeability.

Substitution is valid when the following parameters are matched:

• Connector style and type (D-Sub Plug, Male Pins)
• Position and row configuration (9 positions, 2 rows)
• Shell size and layout (Size 1, DE/E)
• Mounting configuration (Free Hanging, In-Line)
• Termination methods (IDC and discrete wire support)
• Voltage and temperature ratings
• Contact material and finish type

Parameter Comparison

Engineering Selection Recommendations

The 745203-9 is the direct substitute for the obsolete 745203-2. Both parts are manufactured by TE Connectivity within the same AMPLIMITE HDE-20 series and share identical electrical and mechanical specifications. The 745203-9 is the recommended selection for new designs and ongoing production requirements.

The primary advantage of selecting 745203-9 is its active product status and ROHS3 compliance certification. The obsolete status of 745203-2 indicates discontinued manufacturing and limited future availability. For applications subject to RoHS directives or environmental compliance requirements, 745203-9 provides regulatory alignment through its ROHS3 certification.

Both parts maintain equivalent performance across all functional parameters: 9-position configuration, DE/E shell size, 250V voltage rating, -55°C to 105°C operating temperature range, and support for both IDC and discrete wire termination methods. The contact finish difference (30.0µin versus flash gold) does not affect functional interchangeability, as both provide adequate gold plating for signal integrity and corrosion resistance.

Frequently Asked Questions (FAQ)

Q: Can 745203-9 be used as a direct replacement for 745203-2 in existing applications?

A: Yes. The 745203-9 is functionally equivalent to 745203-2 across all electrical and mechanical parameters. Both connectors feature identical 9-position configuration, DE/E shell size, 250V voltage rating, -55°C to 105°C operating temperature range, and support for IDC and discrete wire termination. The parts are interchangeable in circuit design and physical installation.

Q: What is the difference between the contact finish specifications?

A: The 745203-2 specifies 30.0µin (0.76µm) gold plating thickness, while 745203-9 specifies flash gold plating. Both finishes provide adequate electrical conductivity and corrosion resistance for signal-level applications. Flash plating is a thinner, more economical coating that meets performance requirements for this connector category.

Q: Why is 745203-2 classified as obsolete?

A: The 745203-2 has been discontinued by TE Connectivity and is no longer in active production. The 745203-9 represents the current active equivalent within the AMPLIMITE HDE-20 series. Obsolete status indicates limited inventory availability and no guarantee of future supply.

Q: Does the RoHS compliance difference affect substitution?

A: The 745203-9 is ROHS3 compliant, while 745203-2 is RoHS non-compliant. For applications subject to RoHS directives or customer environmental requirements, 745203-9 is the appropriate selection. For legacy systems without RoHS requirements, both parts remain functionally equivalent.

Q: Are there packaging differences between these parts?

A: The 745203-2 packaging specification is not provided in the available data. The 745203-9 is supplied in bulk packaging. Packaging format does not affect connector functionality or interchangeability.

Q: What wire gauges are supported by both connectors?

A: Both 745203-2 and 745203-9 support 22-26 AWG wire gauges for discrete wire termination and IDC applications. Wire gauge selection depends on circuit current requirements and termination method.

Q: Can these connectors be used 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 selection.

Q: What is the voltage rating for these connectors?

A: Both 745203-2 and 745203-9 are rated for 250V. Circuit design must ensure operating voltage does not exceed this specification.