ST4-10-1.00-L-D-P-TR Equivalent & Substitute Parts

Part Overview

The ST4-10-1.00-L-D-P-TR is a 20-position connector header manufactured by Samtec Inc. from the Razor Beam™ ST4 series. This surface mount component features center strip contacts with gold plating and is designed for applications requiring reliable interconnection in compact form factors. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified to provide procurement flexibility, inventory alternatives, and supply chain continuity for this connector category.

Substiute Parts

ST4-10-1.00-L-D-P-TR

Samtec Inc.In Stock: 1843ST4-10-1.00-L-D-P-TR Datasheet

Current PartRFQ

AXT420324

Panasonic Electric WorksIn Stock: 2935AXT420324 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ST4-10-1.00-L-D-P-TR are identified based on electrical and mechanical compatibility within the rectangular connectors category. The substitution criteria are:

• Connector Type: Header with center strip contacts
• Position Count: 20 positions
• Pitch: 0.016" (0.40mm)
• Row Configuration: 2 rows
• Mounting Technology: Surface mount
• Contact Material: Gold plating
• Packaging Format: Tape & Reel
• Environmental Rating: MSL 1 or equivalent

The AXT420324 from Panasonic Electric Works meets all primary electrical and mechanical parameters required for functional substitution in applications designed for the ST4-10-1.00-L-D-P-TR.

Parameter Comparison

Engineering Selection Recommendations

Both the ST4-10-1.00-L-D-P-TR and AXT420324 are active production components with full regulatory compliance. Selection between these parts should be based on the following factors:

ST4-10-1.00-L-D-P-TR (Samtec): Specified contact finish thickness of 10.0µin (0.25µm) and mated stacking heights of 4mm or 4.5mm. Height above board is 0.121" (3.07mm). Features pick and place capability. ROHS3 compliant.

AXT420324 (Panasonic): Mated stacking height of 3mm and height above board of 0.088" (2.23mm). Features solder retention. RoHS compliant. Contact finish thickness not specified in available documentation.

Both parts carry MSL 1 rating, EAR99 export classification, and identical HTSUS coding. The primary mechanical differences are board height and stacking height specifications. Design verification is required when switching between these parts to confirm compatibility with mating connectors and PCB layout constraints.

Frequently Asked Questions (FAQ)

Q: Can AXT420324 be used as a direct replacement for ST4-10-1.00-L-D-P-TR?

A: Both parts share identical electrical specifications: 20 positions, 0.016" (0.40mm) pitch, 2-row configuration, surface mount technology, and gold contact finish. However, mechanical dimensions differ. The AXT420324 has a lower profile (0.088" vs 0.121" above board) and different stacking heights (3mm vs 4mm/4.5mm). Compatibility depends on PCB layout and mating connector specifications.

Q: Are there compliance or environmental differences between these parts?

A: Both parts are active production components with MSL 1 rating (unlimited moisture sensitivity). The ST4-10-1.00-L-D-P-TR is ROHS3 compliant, while the AXT420324 is RoHS compliant. Both carry EAR99 export classification and identical HTSUS coding (8536.69.4040).

Q: What is the significance of the height above board difference?

A: The ST4-10-1.00-L-D-P-TR has a height of 0.121" (3.07mm) above the PCB, while the AXT420324 measures 0.088" (2.23mm). This 0.033" (0.84mm) difference affects PCB layout, component clearance, and mating connector selection. Applications with space constraints may require the lower-profile AXT420324.

Q: How do the mated stacking heights compare?

A: The ST4-10-1.00-L-D-P-TR offers mated stacking heights of 4mm or 4.5mm, while the AXT420324 specifies 3mm. Stacking height determines the vertical distance when connectors are mated. Selection must align with the mating connector's specifications.

Q: Are both parts available in Tape & Reel packaging?

A: Yes. Both the ST4-10-1.00-L-D-P-TR and AXT420324 are supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.

Q: What is the difference between "Pick and Place" and "Solder Retention" features?

A: Pick and Place (ST4-10-1.00-L-D-P-TR) indicates the part is optimized for automated placement equipment. Solder Retention (AXT420324) indicates the part includes features to maintain position during solder reflow. Both are surface mount technologies; the feature difference reflects design approach rather than functional capability.