TE Connectivity 749812-1 D-Sub 9-Position Receptacle Connector

Part Overview

The TE Connectivity 749812-1 is a 9-position D-Sub receptacle connector with female sockets, designed for crimp termination in the AMPLIMITE HDP-20 series. This connector features a DE/E shell size (Size 1) configuration with free-hanging, in-line mounting capability. The part is classified as obsolete, necessitating identification of active equivalent alternatives to maintain supply chain continuity and ensure compliance with current manufacturing standards.

Key Parameters

Parameter	Specification
Manufacturer Part Number	749812-1
Manufacturer	TE Connectivity AMP Connectors
Series	AMPLIMITE HDP-20
Connector Style	D-Sub
Connector Type	Receptacle, Female Sockets
Number of Positions	9
Shell Size, Connector Layout	1 (DE, E)
Termination Method	Crimp
Wire Gauge	20-24 AWG
Voltage Rating	250V
Operating Temperature Range	-55°C to 105°C
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the 749812-1 is based on strict electrical and mechanical parameter equivalence within the AMPLIMITE HDP-20 series. The substitute part must satisfy the following criteria:

Critical Matching Parameters:

Connector style: D-Sub receptacle
Connector type: Female sockets
Number of positions: 9
Shell size and layout: 1 (DE, E)
Mounting type: Free hanging (in-line)
Termination method: Crimp
Wire gauge compatibility: 20-24 AWG
Voltage rating: 250V
Operating temperature range: -55°C to 105°C
Contact material and finish: Phosphor bronze with gold flash finish
Shell material and finish: Steel, tin plated

The substitute part 749812-7 maintains identical electrical and mechanical specifications while offering active product status and improved compliance posture.

Parameter Comparison

Parameter	749812-1 (Main Part)	749812-7 (Substitute)
Manufacturer	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Series	AMPLIMITE HDP-20	AMPLIMITE HDP-20
Connector Style	D-Sub	D-Sub
Connector Type	Receptacle, Female Sockets	Receptacle, Female Sockets
Number of Positions	9	9
Number of Rows	2	2
Shell Size, Connector Layout	1 (DE, E)	1 (DE, E)
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)
Contact Type	Signal	Signal
Flange Feature	Housing/Shell (Unthreaded)	Housing/Shell (Unthreaded)
Termination	Crimp	Crimp
Shell Material, Finish	Steel, Tin Plated	Steel, Tin Plated
Contact Finish	Gold	Gold
Contact Finish Thickness	Flash	Flash
Material Flammability Rating	UL94 V-0	UL94 V-0
Voltage Rating	250V	250V
Color	Black	Black
Wire Gauge	20-24 AWG	20-24 AWG
Contact Material	Phosphor Bronze	Phosphor Bronze
Operating Temperature	-55°C to 105°C	-55°C to 105°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

The 749812-7 serves as the direct functional equivalent to the 749812-1 with identical electrical and mechanical specifications. Selection of 749812-7 is supported by the following factors:

Product Status: The 749812-7 maintains active product status, ensuring continued availability and manufacturer support, whereas the 749812-1 is classified as obsolete.

Regulatory Compliance: The 749812-7 achieves ROHS3 compliance, meeting current environmental and hazardous substance restrictions. The 749812-1 is RoHS non-compliant, presenting potential regulatory barriers in new designs and procurement cycles.

Packaging and Inventory: The 749812-7 is supplied in bulk packaging with higher inventory availability (1990 pieces), compared to the 749812-1 (980 pieces).

Functional Equivalence: Both parts maintain identical electrical ratings (250V), operating temperature range (-55°C to 105°C), contact materials (phosphor bronze with gold flash finish), and mechanical configuration (9-position, DE/E shell size, crimp termination, 20-24 AWG wire gauge).

Frequently Asked Questions (FAQ)

Q: Are the 749812-1 and 749812-7 mechanically interchangeable?

A: Yes. Both connectors share identical shell size (1, DE/E layout), mounting type (free hanging, in-line), and flange configuration (unthreaded housing). They are mechanically interchangeable in applications designed for 9-position D-Sub receptacles.

Q: Can the 749812-7 be used in place of the 749812-1 in existing designs?

A: Yes. The 749812-7 maintains identical electrical specifications (250V rating, -55°C to 105°C operating range) and contact configuration (9 female sockets, phosphor bronze with gold flash finish). No design modifications are required.

Q: What is the difference in packaging between these two parts?

A: The 749812-1 is supplied in standard packaging, while the 749812-7 is supplied in bulk packaging. Bulk packaging typically accommodates higher-volume procurement and reduces per-unit packaging material.

Q: Does the RoHS compliance difference affect electrical performance?

A: No. RoHS compliance relates to material composition and hazardous substance restrictions, not electrical performance. Both parts meet identical electrical specifications and operating parameters.

Q: Are both parts suitable for crimp termination with 20-24 AWG wire?

A: Yes. Both the 749812-1 and 749812-7 are specified for crimp termination with 20-24 AWG wire gauge. Contact geometry and crimp specifications are identical.

Q: What is the current rating for these connectors?

A: Current rating varies by wire gauge. Both parts share identical current rating specifications, which are determined by the wire gauge selected for termination (20-24 AWG range).

Q: Is the 749812-7 available in the same color as the 749812-1?

A: Yes. Both connectors are supplied in black color.

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