RS2-08-G Equivalent & Substitute Parts

Part Overview

The RS2-08-G is an 8-position receptacle connector manufactured by Adam Tech, designed for board-to-board applications with 0.100" (2.54mm) pitch spacing. This connector features through-hole solder termination, gold-plated mating contacts, and push-pull fastening. The part is currently active in production with 761 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with the original specification, enabling direct replacement in applications where the core functional requirements remain unchanged.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Number of Positions	8
Pitch - Mating	0.100" (2.54mm)
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Current Rating	3A
Voltage Rating	250VAC
Operating Temperature	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the RS2-08-G are identified based on the following critical parameters that determine functional equivalence:

Connector Type & Position Count: Both substitute parts are 8-position receptacle connectors matching the original specification.
Pitch & Row Configuration: All parts maintain 0.100" (2.54mm) mating pitch with 2-row configuration and 0.100" row spacing.
Mounting & Termination: Through-hole solder termination is consistent across all parts.
Fastening Type: Push-pull fastening is maintained in all substitute options.
Contact Finish - Mating: Gold plating on mating contacts is preserved for electrical performance and corrosion resistance.
Insulation Material & Flammability: All parts meet UL94 V-0 flammability requirements.

The TE Connectivity AMP Connectors parts (534998-4 and 5-534998-4) are functionally equivalent based on these core parameters. Variations in contact material, post finish, and insulation height do not affect the primary mating interface or board-level compatibility.

Parameter Comparison

Parameter	RS2-08-G (Adam Tech)	534998-4 (TE Connectivity)	5-534998-4 (TE Connectivity)
Connector Type	Receptacle	Receptacle	Receptacle
Number of Positions	8	8	8
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	2	2	2
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold
Insulation Color	Black	Black	Black
Insulation Height	0.335" (8.51mm)	0.265" (6.73mm)	0.265" (6.73mm)
Contact Length - Post	0.118" (3.00mm)	0.125" (3.18mm)	0.125" (3.18mm)
Operating Temperature	-40°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	Not specified
Current Rating	3A	2A	2A
Contact Material	Brass	Phosphor Bronze	Phosphor Bronze
Contact Finish - Post	Gold	Tin	Tin-Lead
RoHS Status	ROHS3 Compliant	RoHS Compliant	Not applicable

Engineering Selection Recommendations

534998-4 (TE Connectivity AMP Connectors): This part is recommended as the primary substitute. It maintains all critical mating interface parameters and is RoHS compliant. The operating temperature range (-65°C ~ 125°C) exceeds the original specification, providing broader environmental compatibility. The 2A current rating is lower than the original 3A specification; applications requiring the full 3A rating should not use this substitute. The UL94 V-0 flammability rating is confirmed.

5-534998-4 (TE Connectivity AMP Connectors): This variant is electrically and mechanically equivalent to 534998-4 with identical mating interface dimensions. RoHS compliance status is not specified for this variant. The material flammability rating is not provided. This part should be selected only when the specific packaging format (tube) is required and RoHS compliance documentation is not a requirement.

Both TE Connectivity substitutes feature slightly reduced insulation height (0.265" vs. 0.335") and marginally longer contact posts (0.125" vs. 0.118"), which do not affect board-level compatibility or mating performance with standard 0.100" pitch headers.

Frequently Asked Questions (FAQ)

Q: Can 534998-4 be used in applications rated for 3A current? A: No. The 534998-4 is rated for 2A maximum current, while the RS2-08-G is rated for 3A. Applications requiring 3A operation must use the original RS2-08-G or verify that actual circuit current does not exceed 2A.

Q: Are the dimensional differences between RS2-08-G and the TE Connectivity substitutes significant? A: The insulation height difference (0.335" vs. 0.265") and contact post length difference (0.118" vs. 0.125") are minor and do not affect standard board-to-board mating. Both dimensions remain within typical PCB design tolerances for 0.100" pitch connectors.

Q: What is the difference between 534998-4 and 5-534998-4? A: Both parts are functionally identical at the mating interface. The primary difference is packaging format: 534998-4 is supplied in tubes, while 5-534998-4 is supplied in tubes as well. The contact post finish differs (Tin vs. Tin-Lead), and RoHS compliance documentation varies between the two variants.

Q: Can I use the TE Connectivity substitutes in RoHS-restricted applications? A: The 534998-4 is RoHS compliant and suitable for RoHS-restricted applications. The 5-534998-4 has undefined RoHS status and should not be used in applications with RoHS compliance requirements.

Q: Are the operating temperature ranges compatible? A: The TE Connectivity substitutes operate from -65°C to 125°C, which exceeds the RS2-08-G range of -40°C to 105°C. For applications within the original -40°C to 105°C range, both parts are suitable. For applications requiring operation below -40°C or above 105°C, the TE Connectivity parts provide extended capability.

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