Equivalent & Substitute Parts for 69751-126HLF

Part Overview

The Amphenol ICC 69751-126HLF is a rectangular connector header with 26 vertical positions at 2.54mm pitch, designed for through-hole board-to-board applications. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production, maintenance, and design updates. The BERGSTIK® II series connector features unshrouded male pins with solder termination and push-pull fastening, suitable for standard PCB assembly processes.

Key Parameters

Parameter	Value
Manufacturer Part Number	69751-126HLF
Manufacturer	Amphenol ICC (FCI)
Category	Rectangular Connectors
Connector Type	Header
Contact Type	Male Pin
Number of Positions	26
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Shape	Square
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the 69751-126HLF are selected based on strict electrical and mechanical compatibility criteria. All substitutes maintain the core functional parameters: 26-position male pin headers with 2.54mm pitch, through-hole solder termination, push-pull fastening, and unshrouded configuration. Substitutes are grouped by contact length specifications, which determine board stacking height and mating depth requirements.

The primary substitution criteria are:

Number of positions: 26 (fixed)
Pitch: 0.100" (2.54mm) (fixed)
Contact type: Male pin (fixed)
Mounting: Through hole, solder termination (fixed)
Fastening: Push-Pull (fixed)
Contact length - mating: Determines connector depth and compatibility
Contact length - post: Determines board-to-board spacing and stacking height
Overall contact length: Determines total connector height
Material flammability: UL94 V-0 (maintained across all substitutes)

Parameter Comparison

Parameter	69751-126HLF (Main)	7-146280-6 (TE)	PBC26SAAN (Sullins)	PBC26SABN (Sullins)	PBC26SACN (Sullins)	PBC26SADN (Sullins)	PBC26SAEN (Sullins)	PBC26SAFN (Sullins)	PBC26SAGN (Sullins)	PBC26SAHN (Sullins)	PEC26SAAN (Sullins)
Manufacturer	Amphenol ICC	TE Connectivity	Sullins	Sullins	Sullins	Sullins	Sullins	Sullins	Sullins	Sullins	Sullins
Number of Positions	26	26	26	26	26	26	26	26	26	26	26
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)
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 Length - Mating	0.170" (4.32mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)
Contact Length - Post	0.170" (4.32mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.230" (5.84mm)	0.320" (8.13mm)	0.420" (10.67mm)	0.520" (13.21mm)	0.620" (15.75mm)	0.720" (18.29mm)	0.820" (20.83mm)	0.120" (3.05mm)
Overall Contact Length	0.440" (11.18mm)	0.440" (11.18mm)	0.450" (11.43mm)	0.560" (14.22mm)	0.650" (16.51mm)	0.750" (19.05mm)	0.850" (21.59mm)	0.950" (24.13mm)	1.050" (26.67mm)	1.150" (29.21mm)	0.450" (11.43mm)
Insulation Height	0.100" (2.54mm)	0.090" (2.29mm)	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)
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold or Gold, GXT™	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Tin
Contact Material	Phosphor Bronze	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	Not specified	Liquid Crystal Polymer (LCP)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)	Polybutylene Terephthalate (PBT)
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
Operating Temperature	Not specified	-65°C ~ 105°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
Current Rating	Not specified	3A	3A	3A	3A	3A	3A	3A	3A	3A	3A
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	Not specified	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Not Applicable	Not Applicable	Not Applicable	Not Applicable	Not Applicable	Not Applicable	Not Applicable	Not Applicable	Not Applicable

Engineering Selection Recommendations

All listed substitute parts maintain active product status, ensuring long-term availability and supply chain stability. The TE Connectivity 7-146280-6 and Sullins PBC26 series connectors are RoHS compliant and ROHS3 compliant respectively, meeting current environmental regulations. All substitutes carry UL94 V-0 flammability ratings, maintaining the safety profile of the original component.

Selection between substitute parts depends on contact length requirements. The 7-146280-6 and PBC26SAAN/PEC26SAAN variants provide the shortest post lengths (0.120" to 0.120"), suitable for applications requiring minimal board-to-board spacing. Extended post length variants (PBC26SABN through PBC26SAHN) accommodate applications requiring greater stacking heights, with post lengths ranging from 0.230" to 0.820".

The PEC26SAAN variant differs in mating contact finish (tin instead of gold), which may affect contact resistance characteristics in specific applications. All Sullins PBC26 variants use phosphor bronze contact material consistent with the original part, while the TE Connectivity 7-146280-6 uses copper alloy contacts.

Frequently Asked Questions (FAQ)

Q: Can the 69751-126HLF be directly replaced with any of these substitutes?

A: Direct replacement depends on contact length specifications. The 7-146280-6 and PBC26SAAN/PEC26SAAN maintain similar overall contact lengths (0.440" to 0.450") to the original 69751-126HLF (0.440"), making them suitable for direct substitution in existing PCB designs. Extended post length variants require PCB layout modifications to accommodate increased stacking heights.

Q: What is the difference between PBC26 and PEC26 series connectors?

A: The primary difference is the mating contact finish. PBC26 series connectors feature gold-plated mating contacts, while PEC26SAAN uses tin-plated mating contacts. Both maintain identical pitch, position count, and mechanical dimensions. Contact finish selection affects electrical properties such as contact resistance and corrosion resistance.

Q: Are all substitutes RoHS compliant?

A: Yes. The TE Connectivity 7-146280-6 is RoHS Compliant, and all Sullins variants (PBC26 and PEC26 series) are ROHS3 Compliant, meeting current environmental regulations for lead-free and restricted substance requirements.

Q: What determines the choice between different Sullins PBC26 variants?

A: The primary differentiator is contact post length, which determines board-to-board stacking height. Selection is based on the required spacing between mating connector surfaces. Variants range from PBC26SAAN (0.120" post length) to PBC26SAHN (0.820" post length), accommodating applications from minimal spacing to extended stacking configurations.

Q: Is the TE Connectivity 7-146280-6 a direct replacement for the 69751-126HLF?

A: The 7-146280-6 maintains compatible pitch, position count, and overall contact length. However, the insulation height differs slightly (0.090" versus 0.100"), and the contact material is copper alloy rather than phosphor bronze. These differences are within acceptable substitution parameters for most applications, but PCB design verification is necessary for critical applications.

Q: What is the operating temperature range for substitute parts?

A: The TE Connectivity 7-146280-6 operates from -65°C to 105°C. All Sullins variants (PBC26 and PEC26 series) operate from -65°C to 125°C, providing extended temperature capability compared to the original part specification.

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