TSS-125-04-G-D-RA-13 Equivalent & Substitute Parts

Part Overview

The TSS-125-04-G-D-RA-13 is an active rectangular connector header manufactured by Samtec Inc. within the Flex Stack TSS series. This through-hole, right-angle connector accommodates 50 positions at 0.100" (2.54mm) pitch with shrouded 4-wall design and push-pull fastening. The part is ROHS3 compliant and rated for operating temperatures from -55°C to 125°C. Substitute parts are identified to address inventory availability or application-specific requirements while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Manufacturer Part Number	TSS-125-04-G-D-RA-13
Manufacturer	Samtec Inc.
Category	Rectangular Connectors
Series	Flex Stack, TSS
Connector Type	Header
Contact Type	Male Pin
Number of Positions	50
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall
Termination	Solder
Fastening Type	Push-Pull
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts TST-125-04-G-D-RA-01 and TST-125-04-G-D-RA-19 are qualified alternatives based on the following matching parameters:

Connector type, contact type, and male pin configuration
50-position, 2-row layout with 0.100" (2.54mm) mating pitch and row spacing
Through-hole, right-angle mounting with shrouded 4-wall design
Push-pull fastening and solder termination
Identical contact geometry: 0.250" (6.35mm) mating length, 0.130" (3.30mm) post length, square contact shape
Gold contact finish with phosphor bronze material
Operating temperature range -55°C ~ 125°C
UL94 V-0 flammability rating and ROHS3 compliance
MSL 1 (Unlimited) moisture sensitivity level

The primary difference between the main part and substitutes is the connector style: TSS-125-04-G-D-RA-13 is configured for board-to-board connections, while TST-125-04-G-D-RA-01 and TST-125-04-G-D-RA-19 are configured for board-to-cable/wire connections. Both substitute parts belong to the Flex Stack TST series and share identical electrical and mechanical specifications with the main part.

Parameter Comparison

Parameter	TSS-125-04-G-D-RA-13	TST-125-04-G-D-RA-01	TST-125-04-G-D-RA-19
Manufacturer	Samtec Inc.	Samtec Inc.	Samtec Inc.
Series	Flex Stack, TSS	Flex Stack, TST	Flex Stack, TST
Connector Type	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin
Number of Positions	50	50	50
Number of Rows	2	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.250" (6.35mm)	0.250" (6.35mm)	0.250" (6.35mm)
Contact Length - Post	0.130" (3.30mm)	0.130" (3.30mm)	0.130" (3.30mm)
Insulation Height	0.365" (9.27mm)	0.365" (9.27mm)	0.365" (9.27mm)
Contact Shape	Square	Square	Square
Contact Finish - Mating	Gold	Gold	Gold
Contact Finish Thickness - Mating	10.0µin (0.25µm)	10.0µin (0.25µm)	10.0µin (0.25µm)
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT), Glass Filled	Polybutylene Terephthalate (PBT), Glass Filled
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active
Style	Board to Board or Cable	Board to Cable/Wire	Board to Cable/Wire

Engineering Selection Recommendations

All three parts maintain active product status with ROHS3 compliance and UL94 V-0 flammability certification. Selection between TSS-125-04-G-D-RA-13 and the TST series substitutes (TST-125-04-G-D-RA-01 or TST-125-04-G-D-RA-19) depends on application interface requirements. The TSS series is specified for board-to-board or cable connections, while the TST series is specified for board-to-cable/wire connections. Both substitute parts feature glass-filled polybutylene terephthalate insulation material and specify a current rating of 3.4A per contact, whereas the main part does not specify a current rating. All parts share identical electrical and mechanical parameters including pitch, position count, contact geometry, operating temperature range, and termination method.

Frequently Asked Questions (FAQ)

Q: Can TST-125-04-G-D-RA-01 or TST-125-04-G-D-RA-19 be used as direct replacements for TSS-125-04-G-D-RA-13?

A: Both TST series parts are electrically and mechanically compatible with the TSS-125-04-G-D-RA-13. The primary difference is connector style: TSS is configured for board-to-board or cable connections, while TST is configured for board-to-cable/wire connections. Compatibility depends on your specific application interface requirements.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is based on matching connector type, contact type, position count, row configuration, mating pitch, row spacing, mounting type, shrouding design, termination method, fastening type, contact geometry, contact finish, insulation material, operating temperature range, and compliance certifications.

Q: Are there differences in insulation material between the main part and substitutes?

A: Yes. The TSS-125-04-G-D-RA-13 uses polybutylene terephthalate (PBT) insulation, while both TST substitutes use glass-filled polybutylene terephthalate (PBT). Both materials meet UL94 V-0 flammability requirements.

Q: Do the substitute parts specify a current rating?

A: Yes. Both TST-125-04-G-D-RA-01 and TST-125-04-G-D-RA-19 specify a current rating of 3.4A per contact. The main part TSS-125-04-G-D-RA-13 does not specify a current rating in the provided data.

Q: Are all three parts ROHS3 compliant?

A: Yes. TSS-125-04-G-D-RA-13, TST-125-04-G-D-RA-01, and TST-125-04-G-D-RA-19 are all ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level.

Q: What is the difference between TST-125-04-G-D-RA-01 and TST-125-04-G-D-RA-19?

A: Both parts share identical electrical and mechanical specifications. The difference is indicated in their part number suffix (-01 versus -19), which typically denotes manufacturing or packaging variations not detailed in the provided parameters.

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