Amphenol ICC 75844-101-72LF Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 75844-101-72LF is a rectangular connector header with 72 positions at 2.54mm pitch, designed for through-hole board-to-board or cable applications. This BERGSTIK® series component features unshrouded, breakaway male pin contacts with solder termination and push-pull fastening. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain electrical and mechanical compatibility for new designs and production continuity.

Key Parameters

Parameter	Value
Manufacturer Part Number	75844-101-72LF
Manufacturer	Amphenol ICC (FCI)
Category	Rectangular Connectors
Number of Positions	72
Pitch - Mating	0.100" (2.54mm)
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Connector Type	Header, Breakaway
Contact Type	Male Pin
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Shape	Square
Shrouding	Unshrouded
Operating Temperature	-65°C ~ 130°C
Current Rating	5A
Voltage Rating	110V
Material Flammability Rating	UL94 V-0
RoHS Status	RoHS Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the 75844-101-72LF are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Matching Parameters:

Number of Positions: 72
Pitch - Mating: 0.100" (2.54mm)
Number of Rows: 2
Row Spacing - Mating: 0.100" (2.54mm)
Connector Type: Header
Contact Type: Male Pin
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Shrouding: Unshrouded
Material Flammability Rating: UL94 V-0

Secondary Compatibility Considerations:

Contact Shape: Square or Circular (both acceptable for board-to-board mating)
Contact Finish - Mating: Gold or Tin (both provide adequate electrical conductivity)
Insulation Material: Thermoplastic or engineered polymers (PCT, PA9T, PA6T, LCP)
Operating Temperature Range: Must encompass or exceed application requirements
Current Rating: Must meet or exceed 5A requirement
RoHS/REACH Compliance: Active parts must meet modern regulatory standards

Substitute parts are grouped into two categories: direct mechanical equivalents with identical contact geometry (square contacts) and functional equivalents with alternative contact geometry (circular contacts) that maintain electrical performance within the same pitch and position specifications.

Parameter Comparison

Parameter	75844-101-72LF (Main)	450-10-272-00-013101	450-80-272-00-001101	450-V3-272-00-006101	961272-6404-AR	DW-36-07-L-D-200	GBC36DAAN	M20-9763642	M20-9763646	MTLW-136-06-F-D-220	MTLW-136-06-T-D-240
Manufacturer	Amphenol ICC	Preci-Dip	Preci-Dip	Preci-Dip	3M	Samtec Inc.	Sullins	Harwin Inc.	Harwin Inc.	Samtec Inc.	Samtec Inc.
Number of Positions	72	72	72	72	72	72	72	72	72	72	72
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)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Rows	2	2	2	2	2	2	2	2	2	2	2
Row Spacing - 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)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Connector Type	Header, Breakaway	Header	Header	Header	Header	Header	Header, Breakaway	Header, Cuttable	Header, Cuttable	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Shape	Square	Circular	Circular	Circular	Square	Square	Square	Square	Square	Square	Square
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Contact Finish - Mating	Gold, GXT™	Gold	Tin	Gold	Gold	Gold	Gold	Gold	Tin	Gold	Tin
Operating Temperature	-65°C ~ 130°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-25°C ~ 105°C	Not specified	-65°C ~ 150°C	-40°C ~ 105°C	-40°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 105°C
Current Rating	5A	3A	3A	3A	2A	Not specified	3A	3A per Contact	3A per Contact	5.2A per Contact	5.2A per Contact
Voltage Rating	110V	150VDC	150VDC	150VDC	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified	Not specified
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

Primary Substitutes (Square Contact Geometry - Direct Mechanical Equivalents):

The 961272-6404-AR (3M 961 series) provides the closest mechanical match with square contact geometry identical to the original 75844-101-72LF. This part maintains the same contact shape and is RoHS compliant with active product status. However, the current rating of 2A is below the original 5A specification, limiting its use to lower-power applications.

The GBC36DAAN (Sullins Connector Solutions) offers square contact geometry with 3A current rating and extended operating temperature range (-65°C ~ 150°C), exceeding the original specification. This part is RoHS3 compliant and actively produced, making it suitable for applications requiring thermal performance beyond the original design.

The M20-9763642 and M20-9763646 (Harwin Inc. M20 series) both feature square contacts with 3A per contact rating and cuttable header design. M20-9763642 provides gold mating finish, while M20-9763646 offers tin mating finish. Both are ROHS3 compliant and actively produced with identical mechanical dimensions.

Secondary Substitutes (Circular Contact Geometry - Functional Equivalents):

The Preci-Dip 450 series (450-10-272-00-013101, 450-80-272-00-001101, 450-V3-272-00-006101) provides circular contact geometry with 3A current rating and ROHS3 compliance. These parts maintain full electrical and mechanical compatibility at the 2.54mm pitch and 72-position configuration. Contact finish options include gold and tin, with variations in contact length and insulation height to accommodate different application requirements.

High-Current Alternatives:

The Samtec MTLW series (MTLW-136-06-F-D-220 and MTLW-136-06-T-D-240) delivers 5.2A per contact current rating, matching or exceeding the original 5A specification. These parts feature Flex Stack design with reduced overall contact length (0.300" / 7.62mm) and are ROHS3 compliant. The MTLW-136-06-F-D-220 provides gold mating finish, while MTLW-136-06-T-D-240 offers tin finish.

The Samtec DW-36-07-L-D-200 (Flex Stack, DW series) provides 72-position configuration with gold mating finish and ROHS3 compliance, suitable for applications requiring spacer connector functionality.

Compliance and Regulatory Status:

All substitute parts listed are ROHS3 compliant or RoHS compliant, meeting current regulatory requirements. The original 75844-101-72LF is RoHS compliant but obsolete. All active substitutes maintain UL94 V-0 flammability rating, ensuring equivalent safety performance.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with circular contacts instead of square contacts?

A: Yes. Circular and square contact geometries are functionally equivalent at the 2.54mm pitch specification. Both provide adequate electrical conductivity and mechanical engagement. The choice depends on application requirements and PCB design compatibility. Circular contacts (Preci-Dip 450 series) are interchangeable with square contacts (Sullins, Harwin, 3M, Samtec) at the board-to-board interface.

Q: What is the difference between the Preci-Dip 450 series variants?

A: The three Preci-Dip 450 variants differ in contact finish and contact length specifications. The 450-10-272-00-013101 features gold mating finish with 0.134" contact length. The 450-80-272-00-001101 provides tin mating finish with 0.156" contact length. The 450-V3-272-00-006101 combines gold mating finish (29.5µin thickness) with tin post finish and 0.141" contact length. All three maintain identical pitch, position count, and row spacing.

Q: Why do some substitutes have lower current ratings than the original part?

A: The 75844-101-72LF specifies 5A current rating. Substitutes with 3A ratings (Preci-Dip 450 series, Sullins GBC36DAAN, Harwin M20 series) are suitable for applications operating at or below 3A per contact. The Samtec MTLW series (5.2A per contact) and 3M 961272-6404-AR (2A) provide alternatives for specific current requirements. Selection must match application current demands.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitute parts are either RoHS compliant or ROHS3 compliant, meeting current regulatory standards. The original 75844-101-72LF is RoHS compliant but obsolete. ROHS3 compliance indicates compliance with the latest RoHS directive amendments.

Q: What is the difference between breakaway and cuttable header designs?

A: Breakaway headers (Sullins GBC36DAAN, original 75844-101-72LF) feature pre-scored sections allowing individual pin removal by hand or tool. Cuttable headers (Harwin M20 series) allow custom pin count configuration through cutting. Both designs maintain the same electrical and mechanical specifications at the 2.54mm pitch. Selection depends on whether individual pin removal or custom configuration is required.

Q: Can I substitute the original part in existing designs without PCB modification?

A: Most substitutes maintain identical pitch (0.100" / 2.54mm), position count (72), and row spacing (0.100" / 2.54mm), allowing direct PCB footprint compatibility. However, contact length and overall connector height may vary. Verify mechanical clearance and mating depth requirements before substitution. The Samtec DW and MTLW series feature different stack heights and should be evaluated for specific application geometry constraints.

Q: What is the operating temperature range consideration for substitution?

A: The original 75844-101-72LF operates from -65°C to 130°C. Most substitutes operate within -55°C to 125°C, which covers typical industrial applications. The Sullins GBC36DAAN extends to -65°C ~ 150°C, providing superior thermal performance. The 3M 961272-6404-AR operates -25°C ~ 105°C, limiting use in extreme cold environments. Select substitutes based on application temperature requirements.

Q: Are gold and tin contact finishes electrically equivalent?

A: Yes. Both gold and tin mating finishes provide adequate electrical conductivity for standard signal and power applications at 2.54mm pitch. Gold finishes (450-10, 450-V3, GBC36DAAN, M20-9763642, MTLW-136-06-F-D-220) offer superior corrosion resistance. Tin finishes (450-80, M20-9763646, MTLW-136-06-T-D-240) provide cost-effective alternatives. Selection depends on environmental exposure and cost considerations.

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