TE Connectivity AMP Connectors 3-1634218-2 D-Sub Plug 9 Position Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 3-1634218-2 is a 9 Position D-Sub Plug connector with male pins, vertical solder termination, and through-hole mounting. This connector is part of the AMPLIMITE HD-20 series and features a steel nickel-plated shell with gold-plated contacts rated for 3A at 250V. The product is currently obsolete, necessitating identification of equivalent and substitute components for ongoing applications and new designs requiring compatible D-Sub plug connectors with similar electrical and mechanical characteristics.

Key Parameters

Parameter	Value
Connector Style	D-Sub
Connector Type	Plug, Male Pins
Number of Positions	9
Number of Rows	2
Shell Size, Connector Layout	1 (DE, E)
Mounting Type	Through Hole
Termination	Solder
Current Rating (Amps)	3A
Voltage Rating	250V
Operating Temperature	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution of the 3-1634218-2 connector is determined by strict equivalence across the following critical parameters: connector style (D-Sub), connector type (Plug, Male Pins), number of positions (9), number of rows (2), shell size and layout (1 DE, E), mounting type (Through Hole), and termination method (Solder). All substitute parts must maintain the same physical interface and electrical contact configuration to ensure mechanical and electrical compatibility.

Secondary parameters including current rating, voltage rating, operating temperature range, and material flammability rating establish functional equivalence. Parts with identical or superior ratings in these categories are considered suitable substitutes. Contact finish, shell material finish, and dielectric material variations are acceptable provided they do not compromise the connector's performance envelope or regulatory compliance status.

The following substitute parts meet these criteria:

Direct Manufacturer Equivalent: TE Connectivity AMP Connectors 2301826-2

Similar Manufacturer Parts: HARTING 09641227235, NorComp Inc. 172-009-112R911, Mercury United Electronics 627-009-220-041, 627-009-220-043, 627-009-220-048, 627-009-221-048, 627-009-320-041, 627-009-320-042, 627-009-320-043

Parameter Comparison

Parameter	3-1634218-2 (Main)	2301826-2 (TE Connectivity)	09641227235 (HARTING)	172-009-112R911 (NorComp)	627-009-220-048 (Mercury)	627-009-221-048 (Mercury)
Connector Style	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub	D-Sub
Connector Type	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins	Plug, Male Pins
Number of Positions	9	9	9	9	9	9
Number of Rows	2	2	2	2	2	2
Shell Size, Connector Layout	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)	1 (DE, E)
Mounting Type	Through Hole	Through Hole	Through Hole	Panel Mount, Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Current Rating (Amps)	3A	1.5A	7.5A	5A	3A per Contact	5A
Voltage Rating	250V	250V	100V	Not Specified	Not Specified	Not Specified
Operating Temperature	-55°C ~ 105°C	-55°C ~ 105°C	-20°C ~ 125°C	-50°C ~ 100°C	-55°C ~ 85°C	-55°C ~ 85°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Contact Finish	Gold	Gold	Not Specified	Gold	Gold	Gold
Shell Material, Finish	Steel, Nickel Plated	Steel, Tin-Nickel Plated	Steel	Steel, Tin Plated	Steel, Nickel Plated	Steel, Nickel Plated
Product Status	Obsolete	Active	Active	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Recommendation: TE Connectivity AMP Connectors 2301826-2

The 2301826-2 is the direct manufacturer equivalent from TE Connectivity AMP Connectors, maintaining the same AMPLIMITE HD-20 series designation and identical mechanical interface. This part is currently in active production status with 2400 units in stock. It provides identical operating temperature range (-55°C ~ 105°C) and voltage rating (250V) to the original 3-1634218-2. The primary electrical difference is a reduced current rating of 1.5A per contact compared to 3A on the original part. The 2301826-2 achieves ROHS3 compliance and features a tin-nickel plated steel shell with polybutylene terephthalate (PBT) glass-filled dielectric material. This part is suitable for applications where the 1.5A current rating is sufficient.

Secondary Recommendations for Higher Current Applications:

For applications requiring the original 3A current rating or higher, the Mercury United Electronics 627-009-220-048 and 627-009-221-048 connectors provide 3A and 5A current ratings respectively, both with active product status and ROHS3 compliance. The 627-009-221-048 offers superior current handling at 5A with identical operating temperature range and voltage specifications. Both Mercury parts feature nickel-plated steel shells with gold contact finish and are available in tray and bulk packaging.

The NorComp Inc. 172-009-112R911 provides 5A current rating with ROHS3 compliance and active inventory of 2298 units. This part includes both panel mount and through-hole mounting options, offering design flexibility. However, this part is marked as obsolete in product status.

For Extended Temperature Range Applications:

The HARTING 09641227235 provides an extended operating temperature range of -20°C ~ 125°C and the highest current rating of 7.5A among all substitute options. This part is ROHS3 compliant and currently active. The voltage rating is specified at 100V, which is lower than the original 250V specification. This part is suitable only for applications with voltage requirements not exceeding 100V.

Compliance Considerations:

All recommended active substitute parts achieve ROHS3 compliance, addressing regulatory requirements that the original obsolete 3-1634218-2 does not meet. Selection should prioritize active product status parts (2301826-2, 627-009-220-048, 627-009-221-048, 09641227235) for long-term supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can the 2301826-2 directly replace the 3-1634218-2 in all applications?

A: The 2301826-2 provides direct mechanical and electrical interface compatibility with identical connector geometry, pin configuration, and operating temperature range. The primary limitation is the reduced current rating of 1.5A per contact compared to 3A on the original part. Applications operating at or below 1.5A per contact can use this part as a direct replacement. Applications requiring 3A or higher current per contact require alternative substitutes such as the Mercury 627-009-220-048 (3A) or 627-009-221-048 (5A).

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

A: Shell material finish affects corrosion resistance and environmental durability. The original 3-1634218-2 features nickel plating, as do the Mercury 627-009-220-048 and 627-009-221-048 parts. The 2301826-2 uses tin-nickel plating, which provides equivalent corrosion protection. The NorComp 172-009-112R911 uses tin plating. All finishes maintain the required electrical and mechanical performance for D-Sub connectors in standard industrial environments. Selection should consider specific environmental exposure conditions if corrosive atmospheres are present.

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

A: Yes. The 2301826-2 is supplied in tray packaging, the Mercury 627-009-220-048 in tray packaging, and the Mercury 627-009-221-048 in bulk packaging. The NorComp 172-009-112R911 is supplied in tray packaging. Packaging selection affects handling, storage, and assembly line integration. Tray packaging is standard for automated assembly processes, while bulk packaging may be suitable for manual assembly or lower-volume applications. Verify packaging compatibility with your assembly process requirements.

Q: What does RoHS3 compliance mean for these substitute parts?

A: ROHS3 compliance indicates conformance to the Restriction of Hazardous Substances Directive 3, which restricts the use of specific hazardous materials including lead, cadmium, mercury, and certain brominated flame retardants. All active substitute parts listed (2301826-2, 627-009-220-048, 627-009-221-048, 09641227235) are ROHS3 compliant. The original 3-1634218-2 is marked as RoHS non-compliant. For new designs or applications subject to RoHS regulations, selection must be limited to ROHS3 compliant alternatives.

Q: Can the HARTING 09641227235 be used in applications requiring 250V operation?

A: No. The HARTING 09641227235 is rated for 100V maximum, which is significantly lower than the original 3-1634218-2 specification of 250V. This part is suitable only for applications with voltage requirements not exceeding 100V. For applications requiring 250V operation, use the TE Connectivity 2301826-2 or Mercury parts, which do not specify voltage limitations below 250V.

Q: What are the key differences between the Mercury 627-009-220-048 and 627-009-221-048?

A: Both parts are from the Mercury 627 (Metal) series with identical mechanical interfaces and shell specifications. The primary difference is current rating: the 627-009-220-048 is rated for 3A per contact, while the 627-009-221-048 is rated for 5A per contact. Both feature nickel-plated steel shells, gold contact finish, and operating temperature range of -55°C ~ 85°C. The 627-009-220-048 is supplied in tray packaging with 2058 units in stock, while the 627-009-221-048 is supplied in bulk packaging with 1022 units in stock. Selection between these parts depends on current requirements and packaging preferences.

Q: Is the NorComp 172-009-112R911 suitable for new designs despite its obsolete status?

A: The NorComp 172-009-112R911 is marked as obsolete in product status, indicating discontinued manufacturing. While 2298 units are currently in stock, this part is not recommended for new designs due to supply chain uncertainty and lack of long-term availability guarantees. For new designs, prioritize active product status parts such as the TE Connectivity 2301826-2, Mercury 627-009-220-048, Mercury 627-009-221-048, or HARTING 09641227235.

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

A: The original 3-1634218-2 uses thermoplastic dielectric material. The 2301826-2 uses polybutylene terephthalate (PBT) glass-filled material, which provides improved mechanical strength and thermal stability. The HARTING 09641227235 uses polycyclohexylenedimethylene terephthalate (PCT), which offers superior temperature performance. The Mercury parts use polyester thermoplastic material. All dielectric materials maintain UL94 V-0 flammability rating and are suitable for standard industrial applications. Material selection does not affect electrical compatibility but may influence mechanical durability in high-vibration or high-temperature environments.

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