MTMM-118-02-G-D-000 Equivalent & Substitute Parts

Part Overview

The MTMM-118-02-G-D-000 is a rectangular connector header manufactured by Samtec Inc., designed for through-hole mounting applications. This 36-position, 2-row connector with 0.079" (2.00mm) pitch provides board-to-board or cable interconnection with male pin contacts. The part is currently active in production and widely available with 1036 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, particularly when specific contact length configurations or insulation heights differ from the primary specification.

Key Parameters

Parameter	Value
Manufacturer Part Number	MTMM-118-02-G-D-000
Manufacturer	Samtec Inc.
Category	Rectangular Connectors
Series	MTMM
Connector Type	Header, Cuttable
Contact Type	Male Pin
Number of Positions	36
Number of Rows	2
Pitch - Mating	0.079" (2.00mm)
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Through Hole
Termination	Solder
Contact Material	Phosphor Bronze
Contact Finish - Mating	Gold, 20.0µin (0.51µm)
Contact Finish - Post	Gold, 3.00µin (0.076µm)
Insulation Material	Liquid Crystal Polymer (LCP)
Insulation Height	0.059" (1.50mm)
Overall Contact Length	0.255" (6.48mm)
Current Rating	3A
Operating Temperature	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitute parts for the MTMM-118-02-G-D-000 are identified based on strict electrical and mechanical compatibility criteria. All substitute parts must maintain the following core parameters:

Manufacturer: Samtec Inc.
Connector Type: Header, Cuttable
Contact Type: Male Pin
Number of Positions: 36
Number of Rows: 2
Pitch - Mating: 0.079" (2.00mm)
Row Spacing - Mating: 0.079" (2.00mm)
Mounting Type: Through Hole
Termination: Solder
Contact Material: Phosphor Bronze
Contact Finish - Mating: Gold, 20.0µin (0.51µm)
Contact Finish - Post: Gold, 3.00µin (0.076µm)
Insulation Material: Liquid Crystal Polymer (LCP)
Operating Temperature: -55°C ~ 125°C
Material Flammability Rating: UL94 V-0
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Substitution is permitted when contact length configurations (mating and post lengths) and insulation heights differ, as these parameters determine physical fit and stacking height in specific board layouts. The MTMM series variants differ primarily in contact length specifications, while the TMMH series represents an alternative with different insulation height and end shroud features.

Parameter Comparison

Part Number	Series	Contact Length - Mating	Contact Length - Post	Overall Contact Length	Insulation Height	Current Rating	Inventory
MTMM-118-02-G-D-000	MTMM	—	—	0.255" (6.48mm)	0.059" (1.50mm)	3A	1036 Pcs
MTMM-118-02-G-D-105	MTMM	0.105" (2.67mm)	0.091" (2.30mm)	0.255" (6.48mm)	0.059" (1.50mm)	3A	715 Pcs
MTMM-118-02-G-D-150	MTMM	0.150" (3.81mm)	0.046" (1.17mm)	0.255" (6.48mm)	0.059" (1.50mm)	3A	783 Pcs
MTMM-118-02-G-D-171	MTMM	0.171" (4.34mm)	0.025" (0.64mm)	0.255" (6.48mm)	0.059" (1.50mm)	3A	810 Pcs
MTMM-118-04-G-D-215	MTMM	0.215" (5.46mm)	0.049" (1.24mm)	0.323" (8.20mm)	0.059" (1.50mm)	3A	1102 Pcs
MTMM-118-03-G-D-105	MTMM	0.105" (2.67mm)	0.138" (4.60mm)	0.302" (7.67mm)	0.059" (1.50mm)	3A	685 Pcs
MTMM-118-06-G-D-120	MTMM	0.120" (3.05mm)	0.218" (5.54mm)	0.397" (10.08mm)	0.059" (1.50mm)	3A	852 Pcs
MTMM-118-07-G-D-259	MTMM	0.259" (6.58mm)	0.138" (4.60mm)	0.456" (11.58mm)	0.059" (1.50mm)	3A	1039 Pcs
MTMM-118-08-G-D-261	MTMM	0.261" (6.63mm)	0.156" (3.96mm)	0.476" (12.09mm)	0.059" (1.50mm)	3A	679 Pcs
MTMM-118-12-G-D-445	MTMM	0.445" (11.30mm)	0.110" (2.79mm)	0.614" (15.60mm)	0.059" (1.50mm)	3A	694 Pcs
TMMH-118-01-G-D-ES	TMMH	0.126" (3.20mm)	0.097" (2.47mm)	0.302" (7.67mm)	0.079" (2.00mm)	—	1026 Pcs

Engineering Selection Recommendations

Selection of substitute parts for the MTMM-118-02-G-D-000 depends on specific application requirements related to contact engagement depth and board-to-board stacking height.

MTMM Series (0.059" Insulation Height): All MTMM variants maintain the standard 0.059" (1.50mm) insulation height and are suitable for applications requiring consistent low-profile mounting. Parts MTMM-118-02-G-D-105, MTMM-118-02-G-D-150, and MTMM-118-02-G-D-171 share the same overall contact length (0.255") as the primary part but differ in mating and post contact length distribution. These are direct substitutes when contact engagement characteristics must be adjusted for specific mating depths.

Extended Contact Length Variants: Parts MTMM-118-04-G-D-215, MTMM-118-03-G-D-105, MTMM-118-06-G-D-120, MTMM-118-07-G-D-259, MTMM-118-08-G-D-261, and MTMM-118-12-G-D-445 provide progressively longer overall contact lengths, accommodating applications requiring greater board separation or deeper mating engagement.

TMMH Series Alternative: The TMMH-118-01-G-D-ES represents a distinct product line with 0.079" (2.00mm) insulation height and end shrouds. This part is suitable only when higher insulation profile and shroud protection are required, as it differs from the MTMM standard configuration.

All listed parts maintain active product status, ROHS3 compliance, and identical electrical ratings (3A current, -55°C to 125°C operating range, UL94 V-0 flammability rating).

Frequently Asked Questions (FAQ)

Q: Can MTMM-118-02-G-D-105 be used as a direct replacement for MTMM-118-02-G-D-000?

A: Yes, within the constraints of your application. Both parts share identical overall contact length (0.255"), insulation height (0.059"), pitch (0.079"), and electrical ratings. The difference lies in how the contact length is distributed between mating and post segments. MTMM-118-02-G-D-105 specifies 0.105" mating length and 0.091" post length, whereas the primary part does not specify these individual lengths. Substitution is valid if your application does not require specific mating depth or post engagement characteristics.

Q: What is the difference between MTMM and TMMH series connectors?

A: The primary differences are insulation height and shroud configuration. MTMM series connectors have 0.059" (1.50mm) insulation height without end shrouds, while TMMH series connectors have 0.079" (2.00mm) insulation height with end shrouds. These dimensional differences affect board layout and mating interface design. TMMH parts are not interchangeable with MTMM parts in applications with space constraints or specific shroud requirements.

Q: How do I select the correct contact length variant?

A: Contact length selection depends on your board thickness, mating depth requirements, and stacking height constraints. The overall contact length determines the maximum board-to-board separation. The mating contact length determines how deeply the connector engages with the mating receptacle. The post length determines solder joint depth on the PCB. Consult your application's mechanical constraints and mating connector specifications to determine the appropriate variant.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts, including MTMM-118-02-G-D-000 and all MTMM and TMMH variants, are ROHS3 compliant with Moisture Sensitivity Level 1 (unlimited shelf life).

Q: What is the current rating for all these connectors?

A: All MTMM series parts are rated for 3A continuous current. The TMMH-118-01-G-D-ES does not specify a current rating in the provided data. Verify current requirements with the manufacturer if using TMMH series in high-current applications.

Q: Can I mix different MTMM variants in the same assembly?

A: Mixing variants is possible if they are used in separate connector positions and your application does not require uniform stacking height across all connectors. However, using identical part numbers throughout an assembly simplifies procurement, inventory management, and assembly documentation.

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