Amphenol ICC 68685-350 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 68685-350 is a 50-position receptacle connector with 0.100" (2.54mm) pitch, designed for board-to-board applications using through-hole solder termination. This connector features gold-plated mating contacts and is part of the Dubox™ series. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain compatibility with the 50-position, 0.100" pitch configuration while meeting the electrical and mechanical requirements of the original design.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	50
Pitch - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold or Gold, GXT™
Insulation Color	Black
Operating Temperature	-65°C ~ 125°C
Material Flammability Rating	UL94 V-0
Voltage Rating	1000V

Substitute Part Grouping Explanation

Substitution for the 68685-350 is based on the following critical parameters that must remain constant:

Connector Type & Contact Configuration: Receptacle with female socket contacts
Position Count & Pitch: 50 positions at 0.100" (2.54mm) mating pitch
Mounting & Termination: Through-hole solder termination with push-pull fastening
Electrical Performance: Voltage rating and contact material capability
Physical Compatibility: Insulation height, contact length, and board-to-board style

The substitute parts are grouped into two categories based on contact finish specifications:

Group 1 - Gold-Plated Mating Contacts: Mill-Max 801-41, 801-43, 801-91, and 801-93 series; Preci-Dip 801-87. These maintain gold contact finish compatibility with the original design.

Group 2 - Tin-Lead Mating Contacts: Mill-Max 801-99 series. These provide alternative contact finish for applications where tin-lead is acceptable.

Parameter Comparison

Parameter	68685-350 (Original)	801-41-050-10-001000	801-41-050-10-004000	801-43-050-10-004000	801-87-050-10-004101	801-91-050-10-001000	801-91-050-10-004000	801-93-050-10-001000	801-93-050-10-004000	801-99-050-10-001000	801-99-050-10-002000
Manufacturer	Amphenol ICC	Mill-Max	Mill-Max	Mill-Max	Preci-Dip	Mill-Max	Mill-Max	Mill-Max	Mill-Max	Mill-Max	Mill-Max
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle	Socket	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle
Number of Positions	50	50	50	50	50	50	50	50	50	50	50
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)
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 Finish - Mating	Gold or Gold, GXT™	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Tin-Lead	Tin-Lead
Contact Finish Thickness - Mating	30.0µin (0.76µm)	10.0µin (0.25µm)	10.0µin (0.25µm)	30.0µin (0.76µm)	Flash	10.0µin (0.25µm)	10.0µin (0.25µm)	30.0µin (0.76µm)	30.0µin (0.76µm)	100.0µin (2.54µm)	100.0µin (2.54µm)
Insulation Height	0.276" (7.00mm)	0.276" (7.00mm)	0.272" (6.91mm)	0.272" (6.91mm)	0.276" (7.00mm)	0.276" (7.00mm)	0.272" (6.91mm)	0.276" (7.00mm)	0.272" (6.91mm)	0.276" (7.00mm)	0.165" (4.20mm)
Contact Length - Post	0.115" (2.92mm)	0.118" (3.00mm)	0.118" (3.00mm)	0.118" (3.00mm)	0.114" (2.90mm)	0.118" (3.00mm)	0.118" (3.00mm)	0.118" (3.00mm)	0.118" (3.00mm)	0.118" (3.00mm)	0.125" (3.18mm)
Operating Temperature	-65°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
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
Contact Material	Phosphor Bronze	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper	Beryllium Copper
Current Rating (Amps)	Not specified	4.5A	4.5A	4.5A	3A	4.5A	4.5A	4.5A	4.5A	4.5A	4.5A
RoHS Status	RoHS non-compliant	RoHS non-compliant	RoHS non-compliant	RoHS non-compliant	ROHS3 Compliant	RoHS non-compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Gold-Plated Contact Applications:

Mill-Max 801-93-050-10-001000 and 801-93-050-10-004000 are the primary recommendations. Both parts are ROHS3 compliant, active in production, and feature 30.0µin (0.76µm) gold plating matching the original 68685-350 specification. The 801-93-050-10-001000 variant maintains the original insulation height of 0.276" (7.00mm), while 801-93-050-10-004000 uses 0.272" (6.91mm). Both support 4.5A current rating and operate across -55°C to 125°C.

Mill-Max 801-91-050-10-001000 and 801-91-050-10-004000 provide alternative gold-plated options with 10.0µin (0.25µm) contact finish thickness. These are RoHS non-compliant but offer tin-lead post finish compatibility.

Preci-Dip 801-87-050-10-004101 is ROHS3 compliant with flash gold plating and glass-filled insulation material. This part operates at 3A current rating and features 0.276" (7.00mm) insulation height.

For Tin-Lead Contact Applications:

Mill-Max 801-99-050-10-001000 and 801-99-050-10-002000 provide ROHS3-compliant alternatives with tin-lead mating contact finish. The 801-99-050-10-001000 maintains standard insulation height of 0.276" (7.00mm), while 801-99-050-10-002000 uses reduced height of 0.165" (4.20mm) with extended contact post length of 0.125" (3.18mm).

Temperature Consideration:

The original 68685-350 operates from -65°C to 125°C. All substitute parts operate from -55°C to 125°C, representing a 10°C reduction in lower temperature limit. Applications requiring operation below -55°C require design review.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 68685-350 with any of the listed Mill-Max 801 series connectors?

A: Yes, all listed Mill-Max 801 series parts maintain the critical compatibility parameters: 50 positions, 0.100" (2.54mm) pitch, through-hole solder termination, and push-pull fastening. Selection depends on contact finish requirements (gold vs. tin-lead), RoHS compliance needs, and insulation height constraints.

Q: What is the difference between 801-41, 801-43, 801-91, and 801-93 series?

A: These series differ in contact finish thickness and post finish material. The 801-41 and 801-91 series feature 10.0µin (0.25µm) gold plating, while 801-43 and 801-93 feature 30.0µin (0.76µm) gold plating matching the original specification. The 801-91 and 801-93 series use tin-lead post finish, while 801-41 and 801-43 use tin post finish.

Q: Is the Preci-Dip 801-87 a direct replacement?

A: The Preci-Dip 801-87-050-10-004101 maintains all critical mechanical and electrical parameters but differs in contact finish (flash gold), insulation material composition (glass-filled), and current rating (3A vs. 4.5A). It is ROHS3 compliant and suitable for applications where these specifications are acceptable.

Q: What is the impact of the reduced operating temperature range (-55°C vs. -65°C)?

A: All substitute parts operate from -55°C to 125°C, compared to the original -65°C to 125°C. Applications requiring operation below -55°C must be evaluated for compatibility. Most industrial and telecommunications applications operate within the -55°C to 125°C range.

Q: Are there packaging differences between the substitute parts?

A: Yes. Mill-Max 801 series parts are supplied in tube packaging, while Preci-Dip 801-87 is supplied in bulk packaging. Mill-Max 801-99-050-10-002000 is also supplied in bulk. Packaging affects handling, storage, and ordering quantities but does not affect electrical or mechanical compatibility.

Q: Which substitute part is recommended for new designs?

A: For new designs requiring RoHS3 compliance, Mill-Max 801-93-050-10-001000 (gold-plated) or 801-99-050-10-001000 (tin-lead) are recommended. Both are active production parts with established supply chains and full compliance documentation.

Q: Can I mix substitute parts from different manufacturers in the same assembly?

A: All listed parts maintain mechanical and electrical compatibility at the mating interface. However, assembly design should standardize on a single part number to ensure consistent performance, supply chain management, and quality control.

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