MTSW-136-23-T-S-145-LA Equivalent & Substitute Parts

Part Overview

The MTSW-136-23-T-S-145-LA is an active rectangular connector header manufactured by Samtec Inc. in the Flex Stack MTSW series. This through-hole, right-angle connector features 36 positions at 0.100" (2.54mm) pitch with kinked pin solder termination and push-pull fastening. The part is ROHS3 compliant with UL94 V-0 flammability rating and operates across -55°C to 105°C. Equivalent substitute parts are necessary when specific contact length requirements, insulation material preferences, or extended temperature ranges are required for application compatibility.

Key Parameters

Parameter	Value
Connector Type	Header, Cuttable
Contact Type	Male Pin
Number of Positions	36
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Fastening Type	Push-Pull
Contact Material	Phosphor Bronze
Contact Finish	Tin
Current Rating	3A
Operating Temperature	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the MTSW-136-23-T-S-145-LA is determined by the following critical parameters that must remain constant across all equivalent parts:

Contact Type: Male Pin
Number of Positions: 36
Pitch - Mating: 0.100" (2.54mm)
Mounting Type: Through Hole, Right Angle
Fastening Type: Push-Pull
Contact Material: Phosphor Bronze
Contact Finish: Tin
Current Rating: 3A
Material Flammability Rating: UL94 V-0
RoHS Status: ROHS3 Compliant

The substitute parts from Sullins Connector Solutions (PEC36 series) maintain these core electrical and mechanical parameters. Variations in contact length specifications (mating and post) and insulation material composition (PBT vs. Polyester Glass Filled) are allowable within the substitution scope, as these do not affect the fundamental connector interface or electrical performance. Extended operating temperature ranges (-65°C ~ 125°C) in substitute parts provide enhanced thermal capability while maintaining compatibility.

Parameter Comparison

Parameter	MTSW-136-23-T-S-145-LA	PEC36SBAN	PEC36SBCN	PEC36SBDN	PEC36SBEN	PEC36SGAN	PEC36SGBN
Manufacturer	Samtec Inc.	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions	Sullins Connector Solutions
Connector Type	Header, Cuttable	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	36	36	36	36	36	36	36
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	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	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Termination	Kinked Pin, Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.145" (3.70mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.318" (8.08mm)	0.318" (8.08mm)
Contact Length - Post	0.090" (2.29mm)	0.100" (2.54mm)	0.300" (7.62mm)	0.400" (10.16mm)	0.500" (12.70mm)	0.100" (2.54mm)	0.200" (5.08mm)
Insulation Height	0.119" (3.02mm)	0.140" (4.66mm)	0.140" (4.66mm)	0.140" (4.66mm)	0.140" (4.66mm)	0.140" (4.66mm)	0.140" (4.66mm)
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish - Mating	Tin	Tin	Tin	Tin	Tin	Tin	Tin
Contact Finish Thickness - Mating	Not specified	100.0µin (2.54µm)	100.0µin (2.54µm)	100.0µin (2.54µm)	100.0µin (2.54µm)	100.0µin (2.54µm)	100.0µin (2.54µm)
Insulation Material	Polyester, Glass Filled	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
Operating Temperature	-55°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Current Rating (Amps)	3A	3A	3A	3A	3A	3A	3A
Insulation Color	Black	Black	Black	Black	Black	Black	Black
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040	8536.69.4040

Engineering Selection Recommendations

All substitute parts maintain active product status and full ROHS3 compliance with REACH unaffected designation. Selection between PEC36 series alternatives depends on post contact length requirements for PCB stack-up accommodation:

PEC36SBAN and PEC36SGAN provide minimal post lengths (0.100" / 2.54mm) suitable for standard PCB applications with shallow component mounting profiles.

PEC36SBCN offers intermediate post length (0.300" / 7.62mm) for applications requiring moderate standoff distance.

PEC36SBDN provides extended post length (0.400" / 10.16mm) for applications with thicker PCB assemblies or additional component clearance.

PEC36SBEN delivers maximum post length (0.500" / 12.70mm) for applications requiring substantial PCB-to-connector spacing.

Mating contact length variations (0.230" for PEC36SBAN/SBCN/SBDN/SBEN versus 0.318" for PEC36SGAN/SGBN) accommodate different mating receptacle depths. All substitute parts support the same 3A current rating and maintain UL94 V-0 flammability compliance. Extended operating temperature range (-65°C ~ 125°C) in substitute parts provides thermal margin beyond the original specification (-55°C ~ 105°C).

Frequently Asked Questions (FAQ)

Q: Can PEC36 series connectors directly replace MTSW-136-23-T-S-145-LA in existing designs?

A: Direct replacement is possible when post contact length and mating contact length are compatible with the PCB layout and mating receptacle specifications. The core electrical interface (36 positions, 0.100" pitch, 3A rating, tin-plated phosphor bronze contacts) remains identical across all parts.

Q: What is the difference between "Cuttable" and "Breakaway" connector types?

A: Both designations indicate the connector can be separated into individual positions. The functional electrical and mechanical interface remains equivalent for board-to-board or cable applications.

Q: Are the PEC36 series parts suitable for high-temperature applications?

A: Yes. The PEC36 series operates across -65°C ~ 125°C, providing 20°C additional upper temperature capability compared to the MTSW-136-23-T-S-145-LA specification of -55°C ~ 105°C.

Q: How do insulation material differences affect connector performance?

A: Both Polyester Glass Filled (MTSW series) and Polybutylene Terephthalate (PEC36 series) meet UL94 V-0 flammability requirements. PBT offers superior chemical resistance and dimensional stability. Material selection should align with application environment and mechanical stress requirements.

Q: Which PEC36 variant should be selected for a specific application?

A: Selection is determined by required post contact length. Measure the distance from PCB surface to mating connector interface and select the PEC36 variant with post length matching or exceeding this requirement. Mating contact length selection depends on the receptacle depth specification.

Q: Are all substitute parts in equivalent stock availability?

A: Inventory levels vary. PEC36SGBN maintains highest stock (2218 Pcs), while PEC36SBEN maintains lowest stock (674 Pcs). Verify current availability for production requirements.

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