Amphenol ICC 78299-526 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 78299-526 is a through-hole, right-angle rectangular connector header with 26 positions at 2.54mm pitch, designed for board-to-board applications. This BERGSTIK® II series component features male pins with press-fit and solder termination options. The part is currently active in production with 1111 units in stock. Substitute parts may be required due to supply constraints, packaging preferences, or specific application requirements such as operating temperature range or current rating specifications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	26
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Shrouding	Unshrouded
Fastening Type	Push-Pull
Contact Shape	Square
Material Flammability Rating	UL94 V-0
Moisture Sensitivity Level (MSL)	1 (Unlimited)
ECCN	EAR99

Substitute Part Grouping Explanation

Substitution eligibility for the 78299-526 is determined by strict alignment with the following core parameters: connector type (header), contact type (male pin), mating pitch (2.54mm), position count (26), row configuration (2 rows), row spacing (2.54mm), mounting style (through-hole, right-angle), shrouding (unshrouded), and fastening mechanism (push-pull). All substitute parts must maintain these electrical and mechanical specifications to ensure functional compatibility in board-to-board applications.

The two qualified substitute parts—TE Connectivity 1-826634-3 and 6-146310-3—both belong to the AMPMODU Mod II series and satisfy all core substitution criteria. Variations in secondary parameters such as contact material, insulation material, contact finish thickness, operating temperature range, and current rating do not preclude substitution but should be evaluated against specific application requirements.

Parameter Comparison

Parameter	78299-526 (Amphenol ICC)	1-826634-3 (TE Connectivity)	6-146310-3 (TE Connectivity)
Connector Type	Header	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	26	26	26
Number of Rows	2	2	2
Row Spacing - Mating	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
Shrouding	Unshrouded	Unshrouded	Unshrouded
Fastening Type	Push-Pull	Push-Pull	Push-Pull
Contact Shape	Square	Square	Square
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Contact Material	Phosphor Bronze	Brass	Copper Alloy
Contact Finish - Mating	Gold or Gold, GXT™	Gold	Gold
Contact Finish Thickness - Mating	15.0µin (0.38µm)	3.90µin (0.099µm)	30.0µin (0.76µm)
Contact Length - Mating	0.230" (5.84mm)	0.264" (6.70mm)	0.230" (5.84mm)
Contact Length - Post	0.120" (3.05mm)	0.126" (3.20mm)	0.120" (3.05mm)
Insulation Height	0.190" (4.83mm)	0.219" (5.56mm)	0.238" (6.05mm)
Insulation Material	Not specified	Polybutylene Terephthalate (PBT)	Thermoplastic, Glass Filled
Insulation Color	Black	Green	Black
Operating Temperature	Not specified	-65°C ~ 105°C	-65°C ~ 105°C
Current Rating (Amps)	Not specified	5A	3A
Termination	Press-Fit, Solder	Solder	Press-Fit, Solder
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Bulk	Bulk	Tray
Inventory	1111 Pcs	677 Pcs	1072 Pcs

Engineering Selection Recommendations

Both TE Connectivity substitute parts meet the core electrical and mechanical requirements for direct substitution with the Amphenol ICC 78299-526. The primary differentiators are compliance status and packaging format.

TE Connectivity 1-826634-3 is ROHS3 compliant and supplied in bulk packaging, matching the original packaging format. This part supports a 5A current rating and operates across -65°C to 105°C. Termination is limited to solder only, which differs from the original part's press-fit and solder options.

TE Connectivity 6-146310-3 is ROHS3 compliant and supplied in tray packaging. This part supports a 3A current rating and operates across -65°C to 105°C. Termination options include both press-fit and solder, aligning with the original part's termination flexibility.

For applications requiring RoHS3 compliance, either TE Connectivity part is suitable. Selection between them depends on packaging requirements (bulk versus tray) and termination method preference (solder-only versus press-fit and solder options).

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1-826634-3 be used as a direct replacement for the Amphenol ICC 78299-526?

A: Yes. Both parts share identical core specifications: 26-position, 2-row header configuration at 2.54mm pitch with through-hole, right-angle mounting and push-pull fastening. The primary difference is termination method; the TE part supports solder termination only, whereas the original supports both press-fit and solder.

Q: What is the difference between the two TE Connectivity substitute parts?

A: Both parts are mechanically and electrically compatible. The 1-826634-3 is supplied in bulk packaging with 5A current rating and solder-only termination. The 6-146310-3 is supplied in tray packaging with 3A current rating and both press-fit and solder termination options. Select based on packaging preference and termination requirements.

Q: Does the difference in contact finish thickness affect substitution eligibility?

A: No. Contact finish thickness variations (15.0µin for the original, 3.90µin for 1-826634-3, and 30.0µin for 6-146310-3) do not preclude substitution. All parts maintain gold mating surface finish and meet UL94 V-0 flammability requirements.

Q: Are the insulation height differences significant?

A: Insulation height variations (0.190" for the original, 0.219" for 1-826634-3, and 0.238" for 6-146310-3) reflect design differences between manufacturers but do not affect functional compatibility in standard board-to-board applications. Verify clearance in space-constrained designs.

Q: What is the impact of RoHS compliance differences?

A: The original Amphenol ICC part is RoHS non-compliant, while both TE Connectivity substitutes are ROHS3 compliant. For applications subject to RoHS regulations, the TE Connectivity parts are required. For legacy or non-regulated applications, either part is acceptable.

Q: Can I use the 6-146310-3 if my design requires press-fit termination?

A: Yes. The 6-146310-3 supports both press-fit and solder termination, making it suitable for designs requiring press-fit assembly.

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