Equivalent & Substitute Parts for 78299-672

Part Overview

The 78299-672 is a rectangular connector header manufactured by Amphenol ICC (FCI) from the BERGSTIK® II series. This through-hole, right-angle connector features 72 positions at 2.54mm pitch and is designed for board-to-board applications. The part is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement planning.

Key Parameters

Parameter	Value
Manufacturer Part Number	78299-672
Manufacturer	Amphenol ICC (FCI)
Series	BERGSTIK® II
Connector Type	Header
Contact Type	Male Pin
Number of Positions	72
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Contact Shape	Square
Contact Material	Phosphor Bronze
Contact Finish - Mating	Gold or Gold, GXT™
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution for the 78299-672 is determined by the following critical parameters:

Connector type (Header, male pin)
Number of positions and rows (72 positions, 2 rows)
Pitch specification (0.100" / 2.54mm mating pitch and row spacing)
Mounting configuration (Through hole, right angle)
Contact shape (Square)
Contact material (Phosphor bronze)
Flammability rating (UL94 V-0)

The substitute parts identified maintain these core electrical and mechanical specifications, ensuring functional compatibility in board-to-board applications. Variations in contact finish thickness, insulation material, and operating temperature ranges do not affect the primary substitution criteria for this connector category.

Parameter Comparison

Parameter	78299-672	68021-172HLF	HMTSW-136-22-L-D-240-RA	HMTSW-136-22-LM-D-240-RA
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Samtec Inc.	Samtec Inc.
Series	BERGSTIK® II	BERGSTIK® II	Flex Stack, HMTSW	Flex Stack, HMTSW
Connector Type	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	72	72	72	72
Number of Rows	2	2	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle	Through Hole, Right Angle
Contact Shape	Square	Square	Square	Square
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Contact Finish - Mating	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold	Gold
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Product Status	Obsolete	Active	Active	Active
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant
Operating Temperature	Not specified	-65°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Current Rating (Amps)	Not specified	3A per Contact	3A	3A

Engineering Selection Recommendations

The 78299-672 is obsolete and no longer in active production. Selection of a substitute part should prioritize active product status and current compliance certifications.

The 68021-172HLF is the manufacturer-recommended direct substitute from Amphenol ICC (FCI). It maintains the BERGSTIK® II series designation and shares identical mechanical and electrical specifications with the original part. This option provides the closest functional equivalence and is RoHS compliant.

The HMTSW-136-22-L-D-240-RA and HMTSW-136-22-LM-D-240-RA are alternative solutions from Samtec Inc. within the Flex Stack series. Both parts meet the core substitution criteria and offer ROHS3 compliance. The Samtec options provide extended operating temperature range (-55°C to 125°C) and documented current ratings (3A per contact), supporting applications with defined thermal and electrical requirements.

All substitute parts maintain the critical parameters: 72-position, 2-row configuration; 2.54mm pitch; through-hole right-angle mounting; square contact geometry; phosphor bronze contact material; and UL94 V-0 flammability rating.

Frequently Asked Questions (FAQ)

Q: Can the 68021-172HLF directly replace the 78299-672 in existing designs?

A: Yes. The 68021-172HLF is the manufacturer-recommended substitute and maintains identical pitch, position count, row configuration, mounting type, and contact specifications. It is functionally compatible for board-to-board applications.

Q: What is the primary difference between the Amphenol ICC and Samtec substitute options?

A: The 68021-172HLF is from the same BERGSTIK® II series as the original part. The Samtec options (HMTSW series) are from a different product line but meet equivalent electrical and mechanical requirements. The Samtec parts offer documented operating temperature ranges and current ratings, while the Amphenol option provides series continuity.

Q: Are the Samtec HMTSW-136 variants interchangeable with each other?

A: The HMTSW-136-22-L-D-240-RA and HMTSW-136-22-LM-D-240-RA share identical electrical and mechanical specifications. The difference in part number designation reflects internal configuration variations that do not affect substitution compatibility for the 78299-672.

Q: Does RoHS compliance affect substitution suitability?

A: The original 78299-672 is RoHS non-compliant. All substitute parts are RoHS compliant or ROHS3 compliant. Selection should align with the regulatory requirements of the target application and end-use market.

Q: What packaging considerations apply to these substitutes?

A: The 68021-172HLF is supplied in bulk packaging. The Samtec parts do not specify packaging format in the provided data. Confirm packaging requirements with the supplier for procurement planning.

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