TFML-125-02-SM-D-A Equivalent & Substitute Parts

Part Overview

The TFML-125-02-SM-D-A is a surface mount rectangular connector header manufactured by Samtec Inc. as part of the Tiger Eye™ TFML series. This connector is designed for board-to-board or cable applications with 50 positions arranged in 2 rows at 0.050" (1.27mm) pitch. The part is currently active in production with 819 units in stock. Substitute parts are identified to provide design flexibility, inventory alternatives, and supply chain continuity while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Manufacturer	Samtec Inc.
Series	Tiger Eye™ TFML
Connector Type	Header
Contact Type	Male Pin
Number of Positions	50
Number of Rows	2
Pitch - Mating	0.050" (1.27mm)
Row Spacing - Mating	0.050" (1.27mm)
Mounting Type	Surface Mount
Shrouding	Shrouded - 4 Wall
Insulation Material	Liquid Crystal Polymer (LCP)
Operating Temperature	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

The TFML-125-02-SM-D-A has one identified substitute: TFML-125-02-S-D-A. Both parts share the same base product number (TFML-125) and are manufactured by Samtec Inc. within the Tiger Eye™ TFML series.

Substitution is valid based on the following matching parameters:

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 50
Number of Rows: 2
Pitch - Mating: 0.050" (1.27mm)
Row Spacing - Mating: 0.050" (1.27mm)
Mounting Type: Surface Mount
Shrouding: Shrouded - 4 Wall
Termination: Solder
Fastening Type: Friction Lock
Contact Length - Mating: 0.134" (3.39mm)
Insulation Height: 0.220" (5.60mm)
Contact Shape: Square
Contact Finish - Mating: Gold
Contact Finish Thickness - Mating: 30.0µin (0.76µm)
Contact Finish - Post: Tin
Contact Material: Phosphor Bronze
Insulation Material: Liquid Crystal Polymer (LCP)
Features: Board Guide
Operating Temperature: -55°C ~ 125°C
Material Flammability Rating: UL94 V-0
Insulation Color: Black
Base Product Number: TFML-125
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level (MSL): 1 (Unlimited)
ECCN: EAR99
HTSUS: 8536.69.4040

Parameter Comparison

Parameter	TFML-125-02-SM-D-A	TFML-125-02-S-D-A
Manufacturer	Samtec Inc.	Samtec Inc.
Series	Tiger Eye™ TFML	Tiger Eye™ TFML
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	50	50
Number of Rows	2	2
Pitch - Mating	0.050" (1.27mm)	0.050" (1.27mm)
Row Spacing - Mating	0.050" (1.27mm)	0.050" (1.27mm)
Mounting Type	Surface Mount	Surface Mount
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall
Termination	Solder	Solder
Fastening Type	Friction Lock	Friction Lock
Contact Length - Mating	0.134" (3.39mm)	0.134" (3.39mm)
Insulation Height	0.220" (5.60mm)	0.220" (5.60mm)
Contact Shape	Square	Square
Contact Finish - Mating	Gold	Gold
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)
Contact Finish - Post	Tin	Tin
Contact Material	Phosphor Bronze	Phosphor Bronze
Insulation Material	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Features	Board Guide	Board Guide
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Black	Black
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS	8536.69.4040	8536.69.4040
Inventory Status	819 Pcs New Original In Stock	1168 Pcs New Original In Stock
Product Status	Active	Active

Engineering Selection Recommendations

Both TFML-125-02-SM-D-A and TFML-125-02-S-D-A are active production parts from Samtec Inc. with identical electrical and mechanical specifications. Selection between these parts is based on inventory availability and supply chain requirements rather than functional differences.

TFML-125-02-S-D-A currently has higher inventory availability (1168 units) compared to TFML-125-02-SM-D-A (819 units). Both parts maintain ROHS3 compliance, UL94 V-0 flammability rating, and MSL 1 moisture sensitivity level, making them suitable for equivalent applications in board-to-board connector designs requiring 50-position, dual-row surface mount headers with 1.27mm pitch.

Frequently Asked Questions (FAQ)

Q: Are TFML-125-02-SM-D-A and TFML-125-02-S-D-A electrically interchangeable?

A: Yes. Both parts have identical electrical specifications including contact material (Phosphor Bronze), contact finish (Gold mating surface, Tin post), pitch (0.050" / 1.27mm), and operating temperature range (-55°C ~ 125°C).

Q: Are these parts mechanically interchangeable?

A: Yes. Both parts share identical mechanical specifications including 50 positions in 2 rows, shrouded 4-wall design, surface mount termination, friction lock fastening, and board guide features. Insulation height, contact length, and overall dimensions are identical.

Q: What is the difference between TFML-125-02-SM-D-A and TFML-125-02-S-D-A?

A: The parts are functionally equivalent. The difference in part number designation reflects internal Samtec product line variations, but all critical electrical and mechanical parameters are identical.

Q: Can I use TFML-125-02-S-D-A as a direct replacement for TFML-125-02-SM-D-A?

A: Yes. The parts are direct substitutes with no design modifications required. PCB footprints, mating connector requirements, and electrical performance remain unchanged.

Q: Are both parts RoHS compliant?

A: Yes. Both TFML-125-02-SM-D-A and TFML-125-02-S-D-A are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level.

Q: What is the operating temperature range for these connectors?

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

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message