A-USB-B-TOP-R Equivalent & Substitute Parts

Part Overview

The A-USB-B-TOP-R is a USB-B Type-B receptacle connector manufactured by Assmann WSW Components, designed for USB 1.1 applications. This connector features a 4-position through-hole vertical mounting configuration with solder termination and board lock functionality. The product is currently classified as obsolete, making identification of suitable substitute components essential for ongoing design support and component procurement.

Substiute Parts

A-USB-B-TOP-R

Assmann WSW ComponentsIn Stock: 892A-USB-B-TOP-R Datasheet

Current PartRFQ

A-USB B-TOP-C

Assmann WSW ComponentsIn Stock: 1253A-USB B-TOP-C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the A-USB-B-TOP-R is determined by strict equivalence in the following parameters:

• Connector Type: USB-B (USB TYPE-B)
• Number of Contacts: 4
• Gender: Receptacle
• Mounting Type: Through Hole
• Mounting Feature: Vertical
• Termination: Solder
• Current Rating: 1A
• Operating Temperature Range: -20°C ~ 85°C
• Contact Finish: Gold
• Material Flammability Rating: UL94 V-0

The A-USB B-TOP-C qualifies as a direct substitute based on these parameters. While the substitute part supports USB 2.0 specification (compared to USB 1.1 in the original), USB 2.0 receptacles maintain full backward compatibility with USB 1.1 devices and protocols. The substitute part includes shielding, which provides enhanced electromagnetic interference protection without affecting mechanical or electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The A-USB B-TOP-C is the designated substitute for the obsolete A-USB-B-TOP-R. Both components are manufactured by Assmann WSW Components and maintain identical mechanical and electrical compatibility across all critical parameters. The substitute part carries Active product status, ensuring continued availability and supply chain reliability.

Both components satisfy ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement. The substitute part's USB 2.0 specification provides forward compatibility while maintaining full backward compatibility with USB 1.1 applications. The addition of shielding in the substitute part enhances electromagnetic compatibility performance without introducing any mechanical or electrical incompatibilities.

Frequently Asked Questions (FAQ)

Q: Can the A-USB B-TOP-C replace the A-USB-B-TOP-R in existing designs?

A: Yes. The A-USB B-TOP-C is mechanically and electrically compatible with the A-USB-B-TOP-R. Both connectors share identical mounting configurations, contact arrangements, current ratings, and operating temperature ranges. The substitute part is a direct replacement.

Q: What is the difference between USB 1.1 and USB 2.0 receptacles?

A: USB 2.0 receptacles are backward compatible with USB 1.1 devices and protocols. The A-USB B-TOP-C supports USB 2.0 specification while maintaining full compatibility with USB 1.1 applications. No functional or electrical limitations exist when using a USB 2.0 receptacle in a USB 1.1 circuit.

Q: Does the shielding in the A-USB B-TOP-C affect compatibility?

A: No. Shielding is an additional feature that enhances electromagnetic interference protection. It does not affect mechanical fit, electrical performance, or compatibility with existing designs. The shielded configuration is a direct replacement for the unshielded original part.

Q: What is the packaging difference between these parts?

A: The A-USB-B-TOP-R was supplied in standard packaging, while the A-USB B-TOP-C is supplied in Tray packaging. This difference affects only handling and storage logistics and does not impact component functionality or compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the A-USB-B-TOP-R and A-USB B-TOP-C are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement and use.