TSW-122-08-G-D-RA Equivalent & Substitute Parts

Part Overview

The TSW-122-08-G-D-RA is a rectangular connector header manufactured by Samtec Inc., designed for through-hole, right-angle board-to-board or cable applications. This 44-position connector operates across a wide temperature range of -55°C to 125°C and features gold-plated phosphor bronze contacts with PBT insulation rated UL94 V-0. The part is currently active in production and RoHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters align with the mating pitch, contact configuration, and termination method, enabling direct functional replacement in compatible applications.

Key Parameters

Parameter	Value
Manufacturer Part Number	TSW-122-08-G-D-RA
Manufacturer	Samtec Inc.
Category	Rectangular Connectors
Connector Type	Header
Contact Type	Male Pin
Number of Positions	44
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Contact Finish - Mating	Gold
Contact Material	Phosphor Bronze
Insulation Material	Polybutylene Terephthalate (PBT)
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the TSW-122-08-G-D-RA is determined by alignment of the following critical parameters:

Pitch - Mating: 0.100" (2.54mm)
Row Spacing - Mating: 0.100" (2.54mm)
Connector Type: Header with male pin contacts
Mounting Type: Through Hole, Right Angle
Termination: Solder
Contact Finish - Mating: Gold
Insulation Material: Thermoplastic or PBT
Material Flammability Rating: UL94 V-0

The identified substitute part 4-103326-0 (TE Connectivity AMP Connectors) shares these core electrical and mechanical parameters. However, differences exist in position count (80 vs. 44), contact post length, insulation height, contact finish thickness, operating temperature range, and RoHS compliance status. These differences must be evaluated against specific application requirements.

Parameter Comparison

Parameter	TSW-122-08-G-D-RA (Samtec)	4-103326-0 (TE Connectivity)
Connector Type	Header	Header, Breakaway
Contact Type	Male Pin	Male Pin
Number of Positions	44	80
Number of Rows	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle
Termination	Solder	Solder
Contact Length - Mating	0.230" (5.84mm)	0.230" (5.84mm)
Contact Length - Post	0.090" (2.29mm)	0.120" (3.05mm)
Insulation Height	0.219" (5.56mm)	0.238" (6.05mm)
Contact Shape	Square	Square
Contact Finish - Mating	Gold	Gold
Contact Finish Thickness - Mating	10.0µin (0.25µm)	15.0µin (0.38µm)
Contact Material	Phosphor Bronze	Copper Alloy
Insulation Material	Polybutylene Terephthalate (PBT)	Thermoplastic
Operating Temperature	-55°C ~ 125°C	-65°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Current Rating	Not specified	3A
RoHS Status	RoHS3 Compliant	RoHS non-compliant
Product Status	Active	Obsolete

Engineering Selection Recommendations

The TSW-122-08-G-D-RA is the preferred selection for new designs due to its active product status and RoHS3 compliance. The part meets current regulatory requirements and benefits from ongoing manufacturer support.

The substitute part 4-103326-0 is classified as obsolete and RoHS non-compliant. Selection of this part is appropriate only in applications where legacy compatibility is required or where the higher position count (80 vs. 44) and extended lower temperature rating (-65°C vs. -55°C) provide functional advantage. The narrower upper operating temperature limit (105°C vs. 125°C) and different contact post length must be evaluated against PCB layout and thermal requirements. The tin-lead contact finish on the post introduces additional compatibility considerations for RoHS-regulated applications.

Frequently Asked Questions (FAQ)

Q: Can the 4-103326-0 directly replace the TSW-122-08-G-D-RA in existing designs?

A: Direct replacement is not recommended without design review. The substitute part has a higher position count (80 vs. 44), different contact post length (0.120" vs. 0.090"), and different insulation height (0.238" vs. 0.219"). PCB footprint and mating connector compatibility must be verified.

Q: What are the key differences in operating temperature range?

A: The TSW-122-08-G-D-RA operates from -55°C to 125°C, while the 4-103326-0 operates from -65°C to 105°C. Applications requiring operation above 105°C must use the Samtec part.

Q: Does RoHS compliance affect substitution decisions?

A: Yes. The TSW-122-08-G-D-RA is RoHS3 compliant, while the 4-103326-0 is RoHS non-compliant. Applications subject to RoHS regulations must use the Samtec part or verify exemption applicability.

Q: Are the contact materials interchangeable?

A: The TSW-122-08-G-D-RA uses phosphor bronze contacts, while the 4-103326-0 uses copper alloy contacts. Both materials are suitable for gold-plated mating surfaces, but contact resistance and durability characteristics may differ.

Q: What is the significance of the breakaway feature on the substitute part?

A: The 4-103326-0 includes a breakaway feature, allowing individual connector sections to be separated. The TSW-122-08-G-D-RA does not have this feature. This affects mechanical handling and assembly procedures.

Q: Can I use fewer positions from the 80-position substitute part?

A: The 4-103326-0 is a fixed 80-position connector. Using only a subset of positions requires either depopulation during assembly or selection of a different part number with the required position count.

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