Amphenol ICC 72454-020 Rectangular Connector Header – Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 72454-020 is a surface mount rectangular connector header with 20 positions, 2.54mm pitch, and shrouded 4-wall design. This component is classified as Active product status and serves as a board-to-cable/wire interface in electronic assemblies. The part is RoHS non-compliant, which necessitates identification of compliant alternatives for applications requiring regulatory adherence. Substitute parts are selected based on matching electrical and mechanical parameters: 20-position configuration, 2.54mm mating pitch, surface mount termination, push-pull fastening, and solder termination.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	20
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Surface Mount
Termination	Solder
Fastening Type	Push-Pull
Shrouding	Shrouded - 4 Wall
Operating Temperature Range	-65°C ~ 105°C
Current Rating	1A
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitute parts for the 72454-020 are grouped into two categories based on compliance and manufacturing origin:

Category 1: Direct Amphenol ICC Substitute

Part number 72454-020LF maintains identical electrical and mechanical specifications to the main part while providing RoHS compliance. The "LF" suffix indicates lead-free termination finish, making this the direct compliant equivalent.

Category 2: Samtec Inc. HTST Series Alternatives

Samtec HTST-110 series parts provide functional equivalence with enhanced electrical performance. These parts maintain the core parameters (20 positions, 2.54mm pitch, surface mount, push-pull fastening, solder termination, shrouded 4-wall design) while offering:
- Higher current rating: 3.4A per contact (versus 1A for 72454-020)
- Extended operating temperature: -55°C ~ 125°C (versus -65°C ~ 105°C)
- RoHS3 compliance
- Liquid Crystal Polymer (LCP) insulation material
- Packaging variants: Tube or Tape & Reel (TR)
- Contact finish options: Standard gold (10.0µin) or thicker gold (30.0µin)
- Optional board guide feature (HTST-110-01-L-DV-A variants)

Key Parameters Determining Substitution:

20-position, 2-row configuration
0.100" (2.54mm) mating pitch and row spacing
Surface mount termination
Push-pull fastening mechanism
Shrouded 4-wall design
Solder termination
Male pin contact type
Board-to-cable/wire style

Parameter Comparison

Parameter	72454-020	72454-020LF	HTST-110-01-L-DV	HTST-110-01-S-DV-P	HTST-110-01-L-DV-P-TR
Manufacturer	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Samtec Inc.	Samtec Inc.	Samtec Inc.
Number of Positions	20	20	20	20	20
Number of Rows	2	2	2	2	2
Pitch - Mating	0.100" (2.54mm)	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)	0.100" (2.54mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Shrouding	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall	Shrouded - 4 Wall
Contact Length - Mating	0.230" (5.84mm)	0.230" (5.84mm)	0.250" (6.35mm)	0.250" (6.35mm)	0.250" (6.35mm)
Insulation Height	0.365" (9.27mm)	0.365" (9.27mm)	0.350" (8.89mm)	0.350" (8.89mm)	0.350" (8.89mm)
Contact Shape	Square	Square	Square	Square	Square
Contact Finish - Mating	Gold, GXT™	Gold, GXT™	Gold	Gold	Gold
Contact Material	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Operating Temperature	-65°C ~ 105°C	-65°C ~ 105°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Current Rating	1A	1A	3.4A per Contact	3.4A per Contact	3.4A per Contact
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	RoHS non-compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging	Tray	Tray	Tube	Tube	Tape & Reel (TR)
Inventory Status	664 Pcs	3185 Pcs	1940 Pcs	2300 Pcs	1900 Pcs

Engineering Selection Recommendations

For RoHS Compliance Requirements: Select 72454-020LF as the primary substitute. This part maintains 100% electrical and mechanical compatibility with the 72454-020 while providing RoHS compliance. Identical specifications ensure direct board-level substitution without design modification.

For Enhanced Performance and Compliance: Samtec HTST-110 series parts provide superior electrical performance with higher current capacity (3.4A per contact) and extended operating temperature range (-55°C ~ 125°C). These parts are ROHS3 compliant and suitable for applications requiring higher reliability margins. The HTST series is available in multiple packaging configurations (Tube or Tape & Reel) to accommodate different assembly processes.

Packaging Considerations:

Tray packaging (72454-020, 72454-020LF): Manual assembly or low-volume production
Tube packaging (HTST series standard): Manual or semi-automated assembly
Tape & Reel packaging (HTST-110-01-*-TR variants): High-volume automated assembly

Contact Finish Selection:

Standard gold finish (10.0µin): HTST-110-01-L-DV, HTST-110-01-L-DV-P, HTST-110-01-L-DV-TR, HTST-110-01-S-DV
Thicker gold finish (30.0µin): HTST-110-01-S-DV-P, HTST-110-01-S-DV-P-TR (matches 72454-020 finish thickness)

Board Guide Feature: HTST-110-01-L-DV-A and HTST-110-01-L-DV-A-P-TR variants include board guide feature for enhanced mechanical stability during assembly.

Frequently Asked Questions (FAQ)

Q: Can 72454-020LF be used as a direct replacement for 72454-020? A: Yes. The 72454-020LF maintains identical electrical and mechanical specifications. The only difference is RoHS compliance status. No design changes are required for substitution.

Q: What are the main differences between Amphenol ICC 72454-020 and Samtec HTST-110 series? A: Core connector geometry and pitch are identical. Key differences include: current rating (1A versus 3.4A per contact), operating temperature range (-65°C ~ 105°C versus -55°C ~ 125°C), insulation material (not specified versus LCP), and contact finish options. Samtec parts offer higher performance specifications and ROHS3 compliance.

Q: Are Samtec HTST-110 parts mechanically compatible with 72454-020? A: Functionally compatible for mating interface (20 positions, 2.54mm pitch, push-pull fastening). Physical dimensions differ slightly: contact length (0.250" versus 0.230") and insulation height (0.350" versus 0.365"). Board-level footprint compatibility depends on specific PCB design. Verify mechanical clearances before substitution.

Q: Which packaging option should I select for high-volume production? A: Tape & Reel (TR) packaging is optimized for automated pick-and-place assembly. HTST-110-01-L-DV-P-TR and HTST-110-01-S-DV-P-TR are recommended for high-volume applications.

Q: Does contact finish thickness affect electrical performance? A: Contact finish thickness (10.0µin versus 30.0µin gold) does not affect electrical performance for standard applications. Thicker finishes provide extended contact life under high-cycle mating/unmating conditions. Select based on application duty cycle.

Q: What is the difference between HTST-110-01-L-DV and HTST-110-01-S-DV variants? A: The "L" designation indicates longer contact length (0.250"), while "S" indicates standard contact length. Both maintain 2.54mm pitch and 20-position configuration. Contact length selection depends on mating connector depth requirements.

Q: Are all substitute parts lead-free? A: 72454-020LF and all Samtec HTST-110 series parts feature lead-free termination finishes, meeting RoHS requirements. The original 72454-020 is RoHS non-compliant.

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