KUSBX-SMTAS1NWTR USB-A Receptacle Connector Equivalent & Substitute Parts

Part Overview

The KUSBX-SMTAS1NWTR is an active, surface-mount USB-A receptacle connector manufactured by Kycon, Inc. This component is a 4-position, shielded connector with right-angle mounting and horizontal orientation, designed for solder termination with board lock features. The connector operates across -40°C to 85°C with a 1A current rating at 30VAC. Finding equivalent and substitute parts is necessary when addressing inventory constraints, lead time requirements, or specific design color specifications while maintaining electrical and mechanical compatibility.

Substiute Parts

KUSBX-SMTAS1NWTR

Kycon, Inc.In Stock: 947KUSBX-SMTAS1NWTR Datasheet

Current PartRFQ

KUSBX-SMTAS1NBTR

Kycon, Inc.In Stock: 23802KUSBX-SMTAS1NBTR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the KUSBX-SMTAS1NWTR is determined by strict equivalence across the following critical parameters:

• Connector Type: USB-A receptacle configuration
• Number of Contacts: 4-position
• Mounting Type: Surface mount with right-angle, through-hole capability
• Mounting Feature: Horizontal orientation
• Termination Method: Solder
• Current Rating: 1A minimum
• Voltage Rating: 30VAC minimum
• Operating Temperature: -40°C to 85°C range
• Shielding: Shielded construction
• Contact Finish: Gold plating
• Shell Material: Copper alloy
• Flammability: UL94 V-0 compliance
• Board Lock Feature: Present

The KUSBX-SMTAS1NBTR meets all these criteria. The only difference is the insulation color (black versus white), which does not affect electrical or mechanical compatibility. Both parts share the same base product number (KUSBX) and series designation (KUSBX-SMT).

Parameter Comparison

Engineering Selection Recommendations

Both the KUSBX-SMTAS1NWTR and KUSBX-SMTAS1NBTR are active products from Kycon, Inc., ensuring ongoing manufacturer support and availability. Both parts maintain RoHS compliance; the substitute part carries ROHS3 certification, which represents an enhanced compliance level. Selection between these parts should be based on design requirements for insulation color. The white variant (KUSBX-SMTAS1NWTR) and black variant (KUSBX-SMTAS1NBTR) are electrically and mechanically identical, with no functional differences in circuit performance, thermal characteristics, or reliability.

Frequently Asked Questions (FAQ)

Q: Can KUSBX-SMTAS1NBTR replace KUSBX-SMTAS1NWTR in existing designs?

A: Yes. Both connectors are electrically and mechanically equivalent across all functional parameters. The only difference is insulation color. Substitution is valid provided design documentation does not specify white color as a functional requirement.

Q: Are there differences in compliance certifications between these parts?

A: Both parts are RoHS compliant. The substitute part (KUSBX-SMTAS1NBTR) carries ROHS3 certification, which is a higher compliance standard. This does not create incompatibility; it represents equivalent or superior compliance status.

Q: Do these connectors have identical PCB footprints?

A: Yes. Both parts share identical mounting specifications: surface mount, right-angle, horizontal orientation with through-hole capability. PCB layout and assembly procedures are interchangeable.

Q: What is the significance of the board lock feature?

A: The board lock feature provides mechanical retention of the connector to the PCB during assembly and operation, preventing accidental disconnection. Both parts include this feature.

Q: Are there inventory or lead time considerations?

A: The substitute part (KUSBX-SMTAS1NBTR) shows significantly higher inventory availability (23,747 pcs) compared to the main part (868 pcs). This may influence procurement decisions based on project timelines.

Q: Can color be changed in production without affecting performance?

A: Insulation color is a cosmetic specification that does not affect electrical performance, thermal characteristics, or reliability. Selection between white and black variants is a design choice, not a functional requirement.