Amphenol ICC 79258-640 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 79258-640 is a rectangular connector header, right-angle mounted, with 40 positions at 2.54mm pitch. This through-hole component is designed for board-to-board connections using solder termination and push-pull fastening. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production support. Substitute parts must maintain electrical and mechanical compatibility while meeting current manufacturing and compliance standards.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	40
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Fastening Type	Push-Pull
Contact Shape	Square
Contact Finish - Mating	Gold or Gold, GXT™
Material Flammability Rating	UL94 V-0
Insulation Color	Black

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Connector type and contact type (Header, Male Pin)
Position count and row configuration (40 positions, 2 rows)
Pitch specifications (0.100" mating pitch, 0.100" row spacing)
Mounting style (Through Hole, Right Angle)
Termination method (Solder)
Fastening mechanism (Push-Pull)
Contact shape (Square)
Contact finish on mating surface (Gold or equivalent)
Flammability rating (UL94 V-0)

All three substitute parts meet these core criteria. Variations in contact length, insulation height, contact material composition, and product status are secondary parameters that do not preclude substitution but may affect application suitability.

Parameter Comparison

Parameter	79258-640 (Main)	68022-140H	7-146311-0	A1-40PA-2.54DS(71)
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)	TE Connectivity AMP Connectors	Hirose Electric Co Ltd
Series	BERGSTIK® II	BERGSTIK® II	AMPMODU Mod II	A1
Product Status	Obsolete	Active	Obsolete	Active
Connector Type	Header	Header	Header, Breakaway	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	40	40	40	40
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
Termination	Solder	Solder	Press-Fit, Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.318" (8.08mm)	0.318" (8.08mm)	0.318" (8.08mm)	0.236" (6.00mm)
Contact Length - Post	0.120" (3.05mm)	0.110" (2.79mm)	0.110" (2.79mm)	0.118" (3.00mm)
Insulation Height	0.190" (4.83mm)	0.240" (6.10mm)	0.238" (6.05mm)	0.236" (6.00mm)
Contact Shape	Square	Square	Square	Square
Contact Finish - Mating	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold	Gold
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	8.00µin (0.203µm)
Contact Material	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Brass
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Black
Current Rating (Amps)	Not specified	5A	3A	3A
Voltage Rating	Not specified	110V	Not specified	200V
Operating Temperature	Not specified	Not specified	-65°C ~ 105°C	-55°C ~ 85°C
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

For Active Production and New Designs:

The Amphenol ICC 68022-140H is the primary substitute. It maintains identical mechanical and electrical specifications to the main part while offering active product status and RoHS compliance. Current rating of 5A and voltage rating of 110V provide adequate performance margins for standard applications. Packaging in bag format supports standard component handling.

The Hirose Electric A1-40PA-2.54DS(71) is the manufacturer-recommended alternative. It provides active product status, RoHS compliance, and higher voltage rating (200V). Tray packaging supports automated assembly processes. The reduced contact length on the mating surface (0.236" versus 0.318") requires board design verification to ensure proper mating depth with corresponding receptacles.

For Legacy System Maintenance:

The TE Connectivity 7-146311-0 maintains compatibility with existing designs but carries obsolete product status. RoHS compliance and extended operating temperature range (-65°C to 105°C) support demanding environments. Press-fit termination option provides alternative assembly flexibility. This part is suitable only when replacement inventory is unavailable and design modification is not feasible.

Compliance Considerations:

The main part 79258-640 is RoHS non-compliant. All three substitutes are RoHS compliant, meeting current regulatory requirements for new production. Moisture sensitivity level remains constant across all parts (MSL 1, Unlimited), eliminating storage and handling concerns.

Frequently Asked Questions (FAQ)

Q: Can the 68022-140H directly replace the 79258-640 in existing designs?

A: Yes. The 68022-140H maintains identical pitch (0.100"), position count (40), row configuration (2 rows), mounting style (through-hole right-angle), and contact specifications. Mechanical and electrical compatibility is confirmed. The primary advantage is active product status and RoHS compliance.

Q: What is the difference between the Amphenol ICC 68022-140H and the Hirose A1-40PA-2.54DS(71)?

A: Both are active substitutes with RoHS compliance. The 68022-140H uses phosphor bronze contacts with 30.0µin gold finish and 5A current rating. The A1-40PA-2.54DS(71) uses brass contacts with 8.00µin gold finish, 3A current rating, and higher voltage rating (200V). The A1 series has reduced mating contact length (0.236" versus 0.318"), requiring board design verification for proper mating depth.

Q: Why is the TE Connectivity 7-146311-0 listed as a substitute if it is obsolete?

A: The 7-146311-0 is included because it meets all core substitution criteria and maintains full mechanical and electrical compatibility. It is suitable for legacy system maintenance when replacement inventory is available and design modification is not feasible. For new production, active alternatives are preferred.

Q: Are there packaging differences between the substitutes?

A: Yes. The 68022-140H is supplied in bag packaging, while the A1-40PA-2.54DS(71) is supplied in tray packaging. Bag packaging supports manual assembly and small-volume production. Tray packaging supports automated pick-and-place assembly processes. The 7-146311-0 packaging is not specified.

Q: What is the significance of the contact finish thickness difference in the A1-40PA-2.54DS(71)?

A: The A1-40PA-2.54DS(71) has reduced mating contact gold finish thickness (8.00µin versus 30.0µin on other parts). This thinner finish is within industry standards and does not affect electrical performance or contact reliability for standard applications. The post contact finish thickness (78.7µin) remains adequate for solder joint formation.

Q: Can the 7-146311-0 be used in high-temperature applications?

A: The 7-146311-0 supports operating temperature range of -65°C to 105°C, making it suitable for extended temperature environments. The main part and 68022-140H do not specify operating temperature limits. The A1-40PA-2.54DS(71) supports -55°C to 85°C, which is narrower than the 7-146311-0 range.

Q: What does "Press-Fit, Solder" termination mean for the 7-146311-0?

A: The 7-146311-0 supports both press-fit and solder termination methods. Press-fit termination allows direct insertion into plated through-holes without solder, while solder termination uses traditional wave or reflow soldering. This dual capability provides assembly flexibility not available in the other substitutes, which support solder termination only.

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