STMM-115-02-SM-D Equivalent & Substitute Parts

Part Overview

The STMM-115-02-SM-D is a rectangular connector header manufactured by Samtec Inc. within the Flex Stack STMM series. This through-hole mounted connector features 30 positions arranged in 2 rows with 0.079" (2.00mm) pitch and is designed for board-to-cable/wire applications. The part is currently active in production with 867 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring compatible rectangular connector headers with identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Manufacturer Part Number	STMM-115-02-SM-D
Manufacturer	Samtec Inc.
Category	Rectangular Connectors
Series	Flex Stack, STMM
Connector Type	Header
Contact Type	Male Pin
Number of Positions	30
Number of Rows	2
Pitch - Mating	0.079" (2.00mm)
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Length - Mating	0.120" (3.05mm)
Contact Length - Post	0.118" (3.00mm)
Overall Contact Length	0.302" (7.67mm)
Insulation Height	0.190" (4.83mm)
Contact Shape	Square
Contact Finish - Mating	Gold
Contact Finish - Post	Tin
Contact Material	Phosphor Bronze
Insulation Material	Liquid Crystal Polymer (LCP)
Insulation Color	Black
Current Rating	3A
Operating Temperature	-55°C ~ 125°C
Features	Keying Slot
Shrouding	Shrouded - 4 Wall
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)
Product Status	Active

Substitute Part Grouping Explanation

Substitution eligibility for the STMM-115-02-SM-D is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters define the substitution criteria:

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 30
Number of Rows: 2
Pitch - Mating: 0.079" (2.00mm)
Row Spacing - Mating: 0.079" (2.00mm)
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Contact Length - Mating: 0.120" (3.05mm)
Contact Length - Post: 0.118" (3.00mm)
Overall Contact Length: 0.302" (7.67mm)
Insulation Height: 0.190" (4.83mm)
Contact Shape: Square
Contact Finish - Mating: Gold
Contact Finish - Post: Tin
Contact Material: Phosphor Bronze
Insulation Material: Liquid Crystal Polymer (LCP)
Current Rating: 3A
Operating Temperature: -55°C ~ 125°C
Features: Keying Slot
Shrouding: Shrouded - 4 Wall

Parts meeting all these criteria are classified as direct substitutes within the Flex Stack STMM series.

Parameter Comparison

Parameter	STMM-115-02-SM-D	STMM-115-02-S-D
Manufacturer	Samtec Inc.	Samtec Inc.
Series	Flex Stack, STMM	Flex Stack, STMM
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	30	30
Number of Rows	2	2
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Through Hole	Through Hole
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Length - Mating	0.120" (3.05mm)	0.120" (3.05mm)
Contact Length - Post	0.118" (3.00mm)	0.118" (3.00mm)
Overall Contact Length	0.302" (7.67mm)	0.302" (7.67mm)
Insulation Height	0.190" (4.83mm)	0.190" (4.83mm)
Contact Shape	Square	Square
Contact Finish - Mating	Gold	Gold
Contact Finish - Post	Tin	Tin
Contact Material	Phosphor Bronze	Phosphor Bronze
Insulation Material	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Insulation Color	Black	Black
Current Rating	3A	3A
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C
Features	Keying Slot	Keying Slot
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active
Inventory	867 Pcs	920 Pcs

Engineering Selection Recommendations

Both STMM-115-02-SM-D and STMM-115-02-S-D are active production parts manufactured by Samtec Inc. within the Flex Stack STMM series. Both parts are ROHS3 compliant and carry identical electrical and mechanical specifications. Selection between these parts is based on inventory availability and procurement lead times. The STMM-115-02-S-D currently maintains higher inventory levels at 920 units compared to 867 units for the STMM-115-02-SM-D. Both parts are suitable for applications requiring 30-position, 2-row rectangular connector headers with 2.00mm pitch, through-hole mounting, and 3A current rating across the -55°C to 125°C operating temperature range.

Frequently Asked Questions (FAQ)

Q: Are STMM-115-02-SM-D and STMM-115-02-S-D fully interchangeable?

A: Yes. Both parts share identical electrical and mechanical specifications including connector type, contact configuration, pitch, mounting method, termination, contact materials, and operating parameters. They are direct substitutes within the Flex Stack STMM series.

Q: What determines substitution eligibility for this connector header?

A: Substitution is determined by equivalence across connector type (Header), contact type (Male Pin), position count (30), row configuration (2 rows), mating pitch (0.079"), row spacing (0.079"), mounting type (Through Hole), termination method (Solder), fastening type (Push-Pull), contact dimensions, contact materials, insulation material (LCP), current rating (3A), and operating temperature range (-55°C to 125°C).

Q: Can these parts be used in applications requiring different pitch or position counts?

A: No. These parts are specifically configured for 30-position, 2-row headers with 0.079" (2.00mm) pitch. Applications requiring different configurations require alternative part numbers.

Q: Are both parts RoHS compliant?

A: Yes. Both STMM-115-02-SM-D and STMM-115-02-S-D are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: What is the current rating for these connector headers?

A: Both parts are rated for 3A continuous current per contact.

Q: What is the operating temperature range?

A: Both parts operate across -55°C to 125°C, suitable for industrial and extended temperature applications.

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