Molex 0022284178 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Molex 0022284178 is a through-hole rectangular connector header with 17 positions at 0.100" (2.54mm) pitch. This unshrouded, single-row header connector is designed for board-to-board or cable applications with solder termination and push-pull fastening. The part is active in production status with full inventory availability (789 pcs in stock). Equivalent substitute parts are necessary when specific contact finish requirements, operating temperature ranges, or insulation material specifications differ from the original design parameters.

Key Parameters

Parameter	Value
Manufacturer Part Number	0022284178
Manufacturer	Molex
Series	KK254, 42375
Connector Type	Header, Breakaway
Contact Type	Male Pin
Number of Positions	17
Number of Rows	1
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Shrouding	Unshrouded
Contact Finish - Mating	Gold (30.0µin / 0.76µm)
Contact Finish - Post	Tin (100.0µin / 2.54µm)
Insulation Material	Polyamide (PA), Nylon, Glass Filled
Insulation Height	0.090" (2.29mm)
Overall Contact Length	0.505" (12.83mm)
Material Flammability Rating	UL94 V-0
Insulation Color	Black
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitution of the Molex 0022284178 with Samtec TSW series headers is based on the following critical parameters that must remain constant:

Number of positions: 17
Pitch - Mating: 0.100" (2.54mm)
Connector type: Header
Contact type: Male Pin
Mounting type: Through Hole
Termination: Solder
Fastening type: Push-Pull
Shrouding: Unshrouded
Style: Board to Board or Cable
Material Flammability Rating: UL94 V-0
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

The three Samtec TSW-117-24 variants differ in contact finish specifications and operating temperature ranges, which are the primary differentiators for substitution selection.

Parameter Comparison

Parameter	Molex 0022284178	Samtec TSW-117-24-G-S	Samtec TSW-117-24-S-S	Samtec TSW-117-24-T-S
Manufacturer	Molex	Samtec Inc.	Samtec Inc.	Samtec Inc.
Number of Positions	17	17	17	17
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	1	1	1	1
Connector Type	Header, Breakaway	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Contact Finish - Mating	Gold (30.0µin)	Gold (10.0µin)	Gold (30.0µin)	Tin
Contact Finish - Post	Tin (100.0µin)	Gold (3.00µin)	Tin	Tin
Contact Material	Not specified	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Polyamide (PA), Nylon, Glass Filled	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Insulation Height	0.090" (2.29mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Overall Contact Length	0.505" (12.83mm)	0.480" (12.19mm)	0.480" (12.19mm)	0.480" (12.19mm)
Operating Temperature	Not specified	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Black
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

All three Samtec TSW-117-24 variants are active production parts with ROHS3 compliance and MSL 1 rating, matching the regulatory and environmental requirements of the Molex 0022284178.

TSW-117-24-G-S provides gold plating on both mating and post contacts with an extended operating temperature range of -55°C to 125°C. This variant is suitable for applications requiring enhanced corrosion resistance and wider temperature performance.

TSW-117-24-S-S combines gold-plated mating contacts (30.0µin thickness, matching the original specification) with tin-plated posts. Operating temperature range is -55°C to 125°C. This variant aligns most closely with the original contact finish specification on the mating surface.

TSW-117-24-T-S features tin plating on both mating and post contacts with an operating temperature range of -55°C to 105°C. This variant is appropriate for cost-optimized applications where the lower temperature ceiling is acceptable.

Dimensional differences exist: Samtec TSW series headers have a 0.100" (2.54mm) insulation height compared to the Molex 0.090" (2.29mm), and overall contact length is 0.480" versus 0.505". These dimensional variations must be evaluated for PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can TSW-117-24 headers directly replace the Molex 0022284178 on existing PCBs?

A: Mechanical compatibility depends on PCB design. The Samtec TSW series has a 0.010" greater insulation height (0.100" vs 0.090") and 0.025" shorter overall contact length (0.480" vs 0.505"). PCB footprints and clearances must be verified before substitution.

Q: What is the primary difference between the three Samtec TSW-117-24 variants?

A: The variants differ in contact finish specifications and maximum operating temperature. TSW-117-24-G-S uses gold on both surfaces with -55°C to 125°C range. TSW-117-24-S-S uses gold mating/tin post with -55°C to 125°C range. TSW-117-24-T-S uses tin on both surfaces with -55°C to 105°C range.

Q: Which Samtec variant most closely matches the original Molex contact finish?

A: TSW-117-24-S-S provides the closest match with gold-plated mating contacts at 30.0µin thickness and tin-plated posts, identical to the Molex 0022284178 specification.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. The Molex 0022284178 and all three Samtec TSW-117-24 variants are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the impact of insulation material differences?

A: The Molex uses polyamide (PA) nylon with glass filler, while Samtec TSW series uses polybutylene terephthalate (PBT). Both materials meet UL94 V-0 flammability requirements. PBT offers different thermal and chemical resistance characteristics that may affect performance in specific environments.

Q: Can the lower operating temperature of TSW-117-24-T-S (-55°C to 105°C) be used in place of the original part?

A: Only if the application's maximum operating temperature does not exceed 105°C. Applications requiring operation above 105°C must use TSW-117-24-G-S or TSW-117-24-S-S, both rated to 125°C.

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