TFM-110-12-S-D Equivalent & Substitute Parts

Part Overview

The TFM-110-12-S-D is a rectangular connector header manufactured by Samtec Inc. in the Tiger Eye™ TFM series. This surface mount connector is designed for board-to-board or cable applications with 20 positions arranged in 2 rows at 0.050" (1.27mm) pitch. The part is currently active in production with 769 units in stock. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and compatibility options for applications requiring shrouded 4-wall headers with push-pull fastening and solder termination.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	20
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
Fastening Type	Push-Pull
Termination	Solder
Contact Finish - Mating	Gold
Insulation Material	Liquid Crystal Polymer (LCP)
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the TFM-110-12-S-D is determined by strict alignment of the following critical parameters:

Connector Type: Header
Contact Type: Male Pin
Number of Positions: 20
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
Fastening Type: Push-Pull
Termination: Solder
Contact Finish - Mating: Gold
Insulation Material: Liquid Crystal Polymer (LCP)
Material Flammability Rating: UL94 V-0
RoHS Status: ROHS3 Compliant

The substitute part 5-104656-2 (TE Connectivity AMP Connectors AMPMODU 50/50 Grid series) meets all critical substitution criteria for mechanical and electrical compatibility in board-to-board connector applications.

Parameter Comparison

Parameter	TFM-110-12-S-D (Samtec)	5-104656-2 (TE Connectivity)
Manufacturer	Samtec Inc.	TE Connectivity AMP Connectors
Series	Tiger Eye™ TFM	AMPMODU 50/50 Grid
Connector Type	Header	Header
Contact Type	Male Pin	Male Pin
Number of Positions	20	20
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
Fastening Type	Push-Pull	Push-Pull
Termination	Solder	Solder
Contact Shape	Square	Circular
Contact Length - Mating	0.139" (4.63mm)	0.120" (3.05mm)
Insulation Height	0.290" (7.37mm)	0.298" (7.57mm)
Contact Finish - Mating	Gold	Gold
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)
Contact Material	Phosphor Bronze	Phosphor Bronze
Insulation Material	Liquid Crystal Polymer (LCP)	Liquid Crystal Polymer (LCP)
Operating Temperature	-55°C ~ 125°C	-65°C ~ 105°C
Current Rating (Amps)	2.9A per Contact	0.5A per Contact
Voltage Rating	275VAC	Not specified
Material Flammability Rating	UL94 V-0	UL94 V-0
Insulation Color	Black	Black
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active

Engineering Selection Recommendations

Both the TFM-110-12-S-D and 5-104656-2 are active production parts with ROHS3 compliance and UL94 V-0 flammability ratings. Selection between these parts should be based on the following considerations derived from provided specifications:

The TFM-110-12-S-D offers a higher current rating of 2.9A per contact and a specified voltage rating of 275VAC, making it suitable for higher-power applications. The operating temperature range extends to 125°C maximum.

The 5-104656-2 provides an extended lower operating temperature limit of -65°C and includes Board Lock features. The current rating of 0.5A per contact is lower, and voltage rating is not specified in the provided data.

Both parts share identical pitch spacing (0.050" / 1.27mm), row configuration (2 rows, 20 positions), shrouding (4-wall), fastening mechanism (push-pull), and termination method (solder). Contact geometry differs: TFM-110-12-S-D uses square contacts while 5-104656-2 uses circular contacts. Mating contact length varies by 0.019" (0.48mm).

Selection should prioritize application requirements for current capacity, voltage rating, and operating temperature range as specified in the design documentation.

Frequently Asked Questions (FAQ)

Q: Can the 5-104656-2 directly replace the TFM-110-12-S-D in all applications?

A: The 5-104656-2 is mechanically and electrically compatible for board-to-board connections at 0.050" (1.27mm) pitch with identical position count and row configuration. However, the lower current rating (0.5A vs. 2.9A per contact) and unspecified voltage rating require verification against application power requirements before substitution.

Q: What are the key differences between these two connector headers?

A: Primary differences include contact shape (square vs. circular), mating contact length (0.139" vs. 0.120"), insulation height (0.290" vs. 0.298"), operating temperature range (-55°C to 125°C vs. -65°C to 105°C), and current rating (2.9A vs. 0.5A per contact). The TFM-110-12-S-D specifies 275VAC voltage rating; the 5-104656-2 does not provide this specification.

Q: Are both parts RoHS compliant?

A: Yes, both the TFM-110-12-S-D and 5-104656-2 are ROHS3 compliant with UL94 V-0 flammability ratings and MSL 1 (Unlimited) moisture sensitivity levels.

Q: What is the pitch spacing for these connectors?

A: Both connectors operate at 0.050" (1.27mm) pitch for mating and row spacing, ensuring compatibility with standard 0.050" grid PCB layouts.

Q: Do these connectors use the same termination method?

A: Yes, both parts use solder termination for surface mount applications on printed circuit boards.

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