TE Connectivity 747306-2 D-Sub Plug 25 Position IDC Connector Equivalent & Substitute Parts

Part Overview

The TE Connectivity 747306-2 is a 25 position D-Sub plug connector with male pins, designed for IDC (Insulation Displacement Contact) ribbon cable termination. This connector belongs to the AMPLIMITE HDF-20 series and features a free-hanging in-line mounting configuration with unthreaded housing and shell design. The part is currently classified as obsolete, necessitating identification of active equivalent and substitute components that maintain electrical and mechanical compatibility for ongoing system support and new production applications.

Key Parameters

Parameter	Specification
Connector Style	D-Sub
Connector Type	Plug, Male Pins
Number of Positions	25
Number of Rows	2
Shell Size, Connector Layout	3 (DB, B)
Mounting Type	Free Hanging (In-Line)
Termination	IDC, Ribbon Cable
Shell Material, Finish	Steel, Tin Plated
Contact Finish	Gold
Material Flammability Rating	UL94 V-0
Current Rating	1.25A
Operating Temperature	-55°C ~ 105°C
Contact Material	Phosphor Bronze
Dielectric Material	Thermoplastic
Features	Feed Through, Grounding Indents
Color	Black
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the TE Connectivity 747306-2 is determined by strict adherence to the following critical parameters:

Primary Compatibility Criteria:

Connector style: D-Sub
Connector type: Plug, Male Pins
Number of positions: 25
Number of rows: 2
Shell size and layout: 3 (DB, B)
Termination method: IDC, Ribbon Cable
Mounting type: Free Hanging (In-Line)
Flange feature: Housing/Shell (Unthreaded)
Contact type: Signal
Material flammability rating: UL94 V-0
Operating temperature range: -55°C ~ 105°C
Moisture sensitivity level: 1 (Unlimited)

Secondary Compatibility Parameters:

Shell material and finish
Contact finish (Gold)
Contact material composition
Current rating capacity
Dielectric material type
Features (Feed Through, Grounding Indents)

Substitute parts are grouped into two categories: Direct Equivalents (identical mounting type and shell configuration) and Similar Alternatives (different mounting types or minor feature variations that may require application assessment).

Parameter Comparison

Parameter	747306-2 (Main)	1658613-2	G17K25101001EU	G17K25103101EU	L17DBFRB25P	8225-6000	8225-6003	8225-6009	8225-8000
Manufacturer	TE Connectivity	TE Connectivity	Amphenol ICC	Amphenol ICC	Amphenol ICC	3M	3M	3M	3M
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active
Connector Type	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins
Number of Positions	25	25	25	25	25	25	25	25	25
Number of Rows	2	2	2	2	2	2	2	2	2
Shell Size, Layout	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)	3 (DB, B)
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Panel Mount	Panel Mount	Panel Mount	Panel Mount
Termination	IDC, Ribbon Cable	IDC, Ribbon Cable	IDC, Ribbon Cable	IDC, Ribbon Cable	IDC, Ribbon Cable	IDC, Ribbon Cable	IDC, Ribbon Cable	IDC, Ribbon Cable	IDC, Ribbon Cable
Shell Material, Finish	Steel, Tin Plated	Steel, Tin Plated	Steel	Steel	Steel, Nickel Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated	Steel, Tin Plated
Contact Finish	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Contact Material	Phosphor Bronze	Phosphor Bronze	Brass	Brass	Brass	Copper Alloy	Copper Alloy	Copper Alloy	Copper Alloy
Dielectric Material	Thermoplastic	Thermoplastic	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Thermoplastic, Glass Filled	Polybutylene Terephthalate (PBT), Polyester, Glass Filled	Polybutylene Terephthalate (PBT), Polyester, Glass Filled	Polybutylene Terephthalate (PBT), Polyester, Glass Filled	Polybutylene Terephthalate (PBT), Polyester, Glass Filled
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	UL94 V-0
Current Rating (Amps)	1.25A	1.25A	Not Specified	Not Specified	3A	1A	1A	1A	1A
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	Not Specified	Not Specified	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°C
Features	Feed Through, Grounding Indents	Feed Through, Grounding Indents	Feed Through, Grounding Indents, Strain Relief	Feed Through, Grounding Indents, Strain Relief	Feed Through, Grounding Indents, Strain Relief	Feed Through, Grounding Indents	Feed Through, Grounding Indents	Feed Through, Grounding Indents	Feed Through, Grounding Indents
Color	Black	Black	Black	Black	Black	Gray	Gray	Gray	Gray
RoHS Status	RoHS Non-Compliant	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitutes):

The TE Connectivity 1658613-2 is the primary direct equivalent to the 747306-2. Both connectors share identical mounting configuration (free hanging in-line), shell size (3 DB/B), termination method (IDC ribbon cable), and operating temperature range (-55°C to 105°C). The 1658613-2 is active product status with ROHS3 compliance, addressing the obsolescence of the original part. Current rating and contact material specifications are identical. This part is available in bulk packaging with 4096 units in stock.

Secondary Direct Equivalents:

The Amphenol ICC G17K25101001EU and G17K25103101EU connectors maintain identical mounting type, shell configuration, and termination specifications. Both are active products with RoHS compliance. Operating temperature specifications are not provided for these parts. The G17K series features strain relief in addition to feed-through and grounding indent features. These parts are available in box and standard packaging respectively, with 753 and 1035 units in stock.

Alternative Substitutes (Different Mounting Type):

The Amphenol ICC L17DBFRB25P, 3M 8225-6000, 8225-6003, 8225-6009, and 8225-8000 connectors differ in mounting configuration (panel mount versus free hanging in-line). These parts maintain 25-position, 2-row, DB/B shell size configuration with IDC ribbon cable termination and UL94 V-0 flammability rating. The L17DBFRB25P offers higher current rating (3A) and voltage rating (250V) specifications. The 3M 8200 series parts are available in active product status with ROHS3 compliance. Application-specific assessment is required when considering panel mount alternatives for free hanging in-line applications.

Compliance Considerations:

The original 747306-2 is RoHS non-compliant. All recommended substitute parts are RoHS compliant (either RoHS or ROHS3 status), supporting regulatory requirements for new production and ongoing system support. All substitute parts maintain UL94 V-0 flammability rating and MSL 1 (unlimited) moisture sensitivity level specifications.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1658613-2 directly replace the 747306-2 in existing applications?

A: Yes. The 1658613-2 is a direct equivalent with identical connector style, pin count (25 positions, 2 rows), shell size (3 DB/B), mounting type (free hanging in-line), termination method (IDC ribbon cable), and operating temperature range (-55°C to 105°C). Both parts feature gold-plated contacts, UL94 V-0 flammability rating, and MSL 1 moisture sensitivity level. The primary difference is product status (1658613-2 is active versus 747306-2 obsolete) and RoHS compliance (1658613-2 is ROHS3 compliant).

Q: What is the difference between free hanging in-line and panel mount D-Sub connectors?

A: Free hanging in-line connectors are designed for direct cable-to-cable or cable-to-board connections without requiring a panel or enclosure mounting surface. Panel mount connectors feature a flange or bracket for attachment to a panel or chassis. The 747306-2 is free hanging in-line. Substitutes such as the 3M 8225 series are panel mount and require different installation methodology.

Q: Are the Amphenol ICC G17K series connectors fully compatible with the 747306-2?

A: The G17K25101001EU and G17K25103101EU maintain compatibility in connector style, pin count, shell size, mounting type, and termination method. Both are active products with RoHS compliance. Operating temperature specifications are not provided for the G17K series. The G17K series includes strain relief features in addition to feed-through and grounding indents. These parts are suitable direct substitutes for the 747306-2.

Q: Why do some substitute parts have different current ratings?

A: Current rating specifications vary based on contact material composition, contact finish thickness, and overall connector design. The original 747306-2 has a 1.25A current rating. The Amphenol ICC L17DBFRB25P supports 3A, reflecting different contact material (brass versus phosphor bronze) and design specifications. The 3M 8225 series supports 1A. Application current requirements determine whether higher-rated alternatives are necessary or if standard-rated substitutes are sufficient.

Q: What does RoHS compliance mean for connector selection?

A: RoHS (Restriction of Hazardous Substances) compliance indicates that the connector meets regulatory requirements restricting the use of specific hazardous materials including lead, cadmium, mercury, and hexavalent chromium. The original 747306-2 is RoHS non-compliant. All recommended substitutes are RoHS or ROHS3 compliant, supporting regulatory requirements for new production applications and systems requiring environmental compliance certification.

Q: Can I use the L17DBFRB25P as a substitute if my application requires higher current capacity?

A: The L17DBFRB25P supports 3A current rating and 250V voltage rating, compared to the 747306-2 specifications of 1.25A and unspecified voltage. If your application requires higher current capacity, the L17DBFRB25P is electrically suitable. However, this part features panel mount configuration versus the free hanging in-line mounting of the 747306-2. Mechanical compatibility with your installation must be assessed before selection.

Q: What is the significance of contact material differences between substitute parts?

A: The 747306-2 uses phosphor bronze contacts, while many substitutes use brass or copper alloy contacts. All parts feature gold plating on contacts. Contact material affects electrical conductivity, mechanical durability, and cost. Phosphor bronze provides superior spring characteristics and durability. Brass and copper alloy contacts are suitable for standard signal applications. All materials are compatible with IDC ribbon cable termination and support the specified operating temperature range.

Q: Are there packaging differences between substitute parts that affect ordering?

A: Yes. The 1658613-2 is available in bulk packaging (4096 units in stock). The G17K25101001EU is available in box packaging (753 units). The G17K25103101EU is available in standard packaging (1035 units). The L17DBFRB25P is available in tray packaging (976 units). The 3M 8225 series parts are available in tray or bulk packaging depending on specific part number. Packaging selection affects handling, storage, and integration into production workflows.

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