Amphenol ICC 68021-210 Rectangular Connector Header — Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 68021-210 is a through-hole, right-angle rectangular connector header from the BERGSTIK® II series, designed for board-to-board applications with 10 positions arranged in 2 rows at 0.100" (2.54mm) pitch. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement.

Key Parameters

Parameter	Value
Connector Type	Header, Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	10
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole, Right Angle
Termination	Solder
Contact Length - Mating	0.230" (5.84mm)
Contact Length - Post	0.120" (3.05mm)
Insulation Height	0.190" (4.83mm)
Contact Shape	Square
Contact Material	Phosphor Bronze
Current Rating	3A per Contact
Operating Temperature	-65°C ~ 125°C
Material Flammability Rating	UL94 V-0
Insulation Color	Black
Fastening Type	Push-Pull
Shrouding	Unshrouded
Style	Board to Board

Substitute Part Grouping Explanation

Substitution eligibility for the 68021-210 is determined by strict alignment with the following critical parameters:

Pitch - Mating: 0.100" (2.54mm) — mechanical and electrical interface requirement
Number of Positions: 10 with 2 rows at 0.100" row spacing — footprint and contact count
Mounting Type: Through Hole, Right Angle — PCB assembly compatibility
Termination: Solder — assembly process compatibility
Contact Type: Male Pin — mating interface specification
Current Rating: 3A per Contact — electrical load capacity
Operating Temperature Range: Must encompass or match the -65°C ~ 125°C specification
Material Flammability Rating: UL94 V-0 — safety compliance
Fastening Type: Push-Pull — connector engagement mechanism

All listed substitute parts meet these core criteria. Variations in contact material, contact finish, insulation material, and manufacturer-specific features do not preclude functional substitution when the above parameters align.

Parameter Comparison

Parameter	68021-210 (Main)	68021-210HLF	4-103326-0-05	M20-9740542	M20-9740546
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)	TE Connectivity AMP	Harwin Inc.	Harwin Inc.
Series	BERGSTIK® II	BERGSTIK® II	AMPMODU Mod II	M20	M20
Product Status	Obsolete	Active	Discontinued at DiGi Electronics	Active	Active
Connector Type	Header	Header	Header, Breakaway	Header, Cuttable	Header, Cuttable
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	10	10	10	10	10
Number of Rows	2	2	2	2	2
Row Spacing - Mating	0.100" (2.54mm)	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	Through Hole, Right Angle
Termination	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Length - Mating	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.228" (5.80mm)	0.228" (5.80mm)
Contact Length - Post	0.120" (3.05mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.118" (3.00mm)	0.118" (3.00mm)
Insulation Height	0.190" (4.83mm)	0.190" (4.83mm)	0.238" (6.05mm)	0.200" (5.08mm)	0.200" (5.08mm)
Contact Shape	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold or Gold, GXT™	Gold or Gold, GXT™	Gold	Gold	Tin
Contact Material	Phosphor Bronze	Phosphor Bronze	Copper Alloy	Brass	Brass
Current Rating	3A per Contact	3A per Contact	3A	3A per Contact	3A per Contact
Operating Temperature	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 105°C	-40°C ~ 105°C	-40°C ~ 105°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Black	Black
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Style	Board to Board	Board to Board	Board to Board or Cable	Board to Board or Cable	Board to Board or Cable
RoHS Status	RoHS non-compliant	RoHS Compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

68021-210HLF (Amphenol ICC) — Direct manufacturer equivalent with identical electrical and mechanical specifications. Active product status with RoHS compliance. Recommended as primary substitute for new designs and ongoing procurement.

M20-9740542 and M20-9740546 (Harwin Inc.) — Active products with ROHS3 compliance. Both feature cuttable header design and support board-to-board or cable applications. Operating temperature range (-40°C ~ 105°C) is narrower than the original part. M20-9740542 features gold mating contact finish; M20-9740546 features tin mating contact finish. Suitable for applications within the reduced temperature range.

4-103326-0-05 (TE Connectivity AMP) — Discontinued at DiGi Electronics. Breakaway header design with slightly increased insulation height (0.238" vs. 0.190"). Operating temperature range (-65°C ~ 105°C) does not extend to the original part's upper limit of 125°C. RoHS non-compliant. Not recommended for new designs.

Frequently Asked Questions (FAQ)

Q: Can 68021-210HLF directly replace 68021-210 in existing designs?

A: Yes. The 68021-210HLF is functionally identical to the 68021-210 with matching pitch, position count, row spacing, contact dimensions, current rating, and operating temperature range. The primary difference is product status (active vs. obsolete) and RoHS compliance. No design changes are required.

Q: What is the key difference between M20-9740542 and M20-9740546?

A: Both are Harwin M20 series headers with identical mechanical and electrical specifications. The primary difference is contact finish: M20-9740542 features gold mating contact finish, while M20-9740546 features tin mating contact finish. Selection depends on application requirements for contact durability and corrosion resistance.

Q: Why is the operating temperature range narrower for Harwin M20 parts?

A: The Harwin M20 series is rated -40°C ~ 105°C, which does not extend to the original part's -65°C lower limit or 125°C upper limit. Applications requiring the full -65°C ~ 125°C range must use 68021-210HLF or verify that the reduced range is acceptable for the specific application.

Q: Is the TE Connectivity 4-103326-0-05 suitable as a substitute?

A: The 4-103326-0-05 meets core mechanical and electrical requirements but has two limitations: operating temperature range (-65°C ~ 105°C) does not reach 125°C, and the part is discontinued at DiGi Electronics. It is not recommended for new designs. Use 68021-210HLF or Harwin M20 series alternatives.

Q: What does "cuttable" mean on the Harwin M20 headers?

A: Cuttable headers allow individual pins or pin rows to be separated after assembly, providing design flexibility for custom pin configurations. This feature does not affect substitution compatibility for standard 10-position, 2-row applications.

Q: Are there packaging differences between these parts?

A: Yes. 68021-210 is listed without specified packaging; 68021-210HLF is supplied in Bag packaging; 4-103326-0-05, M20-9740542, and M20-9740546 are supplied in Bulk packaging. Packaging does not affect electrical or mechanical compatibility.

Q: Which substitute part has the best compliance status?

A: M20-9740542 and M20-9740546 (Harwin) are ROHS3 compliant. 68021-210HLF is RoHS compliant. Both 68021-210 and 4-103326-0-05 are RoHS non-compliant. For applications requiring RoHS compliance, use 68021-210HLF, M20-9740542, or M20-9740546.

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