A-USB B/SMT USB-B Connector Equivalent & Substitute Parts

Part Overview

The A-USB B/SMT is an active USB 2.0 Type-B receptacle connector manufactured by Assmann WSW Components, designed for surface mount, right-angle applications. This 4-position connector is engineered for applications requiring reliable USB 2.0 connectivity with horizontal board mounting. The part is actively produced and stocked, with 1092 units available in inventory. Substitute parts are identified to provide design flexibility, supply chain alternatives, and component availability options for equivalent functional requirements.

Key Parameters

Parameter	Value
Connector Type	USB-B (USB TYPE-B)
Specifications	USB 2.0
Number of Contacts	4
Gender	Receptacle
Mounting Type	Surface Mount, Right Angle
Mounting Feature	Horizontal
Termination	Solder
Current Rating	1.5A
Operating Temperature Range	-55°C ~ 85°C
Mating Cycles	1500
Contact Finish	Gold
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts 1734346-1 and 1734346-4 are classified as parametric equivalents based on the following matching criteria:

Matching Parameters:

Connector Type: USB-B (USB TYPE-B)
Specifications: USB 2.0
Number of Contacts: 4
Gender: Receptacle
Mounting Type: Surface Mount, Right Angle
Mounting Feature: Horizontal
Termination: Solder
Features: Board Guide, Solder Retention
Mating Cycles: 1500
Contact Finish: Gold
Material Flammability Rating: UL94 V-0
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)
Packaging: Tray

Both substitute parts are manufactured by TE Connectivity AMP Connectors and maintain functional and mechanical compatibility with the A-USB B/SMT for USB 2.0 Type-B receptacle applications requiring surface mount, right-angle configuration.

Parameter Comparison

Parameter	A-USB B/SMT (Assmann)	1734346-1 (TE Connectivity)	1734346-4 (TE Connectivity)
Manufacturer	Assmann WSW Components	TE Connectivity AMP Connectors	TE Connectivity AMP Connectors
Connector Type	USB-B (USB TYPE-B)	USB-B (USB TYPE-B)	USB-B (USB TYPE-B)
Specifications	USB 2.0	USB 2.0	USB 2.0
Number of Contacts	4	4	4
Gender	Receptacle	Receptacle	Receptacle
Mounting Type	Surface Mount, Right Angle	Surface Mount, Right Angle	Surface Mount, Right Angle
Mounting Feature	Horizontal	Horizontal	Horizontal
Termination	Solder	Solder	Solder
Features	Board Guide, Solder Retention	Board Guide, Solder Retention	Board Guide, Solder Retention
Operating Temperature Range	-55°C ~ 85°C	0°C ~ 50°C	0°C ~ 50°C
Current Rating (Amps)	1.5A	1A	1A
Voltage - Rated	-	30VAC	30VAC
Mating Cycles	1500	1500	1500
Contact Finish	Gold	Gold	Gold
Shell/Shielding Material	Brass	Phosphor Bronze, Steel, Stainless	Phosphor Bronze, Steel, Stainless
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	White	Black	Black
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Inventory Availability	1092 Pcs	2400 Pcs	11782 Pcs

Engineering Selection Recommendations

Selection between the A-USB B/SMT and substitute parts 1734346-1 or 1734346-4 is determined by application-specific requirements and operational constraints:

A-USB B/SMT (Assmann WSW Components) is suitable for applications requiring extended operating temperature range (-55°C to 85°C) and higher current capacity (1.5A). This part maintains active production status and ROHS3 compliance.

1734346-1 and 1734346-4 (TE Connectivity AMP Connectors) are suitable for applications operating within 0°C to 50°C temperature range with current requirements up to 1A. Both parts are ROHS3 compliant and actively produced. Part 1734346-4 offers significantly higher inventory availability (11782 units) compared to 1734346-1 (2400 units).

All three parts share identical USB 2.0 Type-B receptacle specifications, 4-position contact configuration, surface mount right-angle mounting, solder termination, board guide and solder retention features, 1500 mating cycle rating, gold contact finish, and UL94 V-0 flammability rating.

Frequently Asked Questions (FAQ)

Q: Are 1734346-1 and 1734346-4 interchangeable with A-USB B/SMT?

A: Both TE Connectivity parts are parametric equivalents for USB 2.0 Type-B receptacle applications with surface mount, right-angle configuration. Interchangeability depends on application operating temperature and current requirements. The A-USB B/SMT supports -55°C to 85°C and 1.5A; the TE Connectivity parts support 0°C to 50°C and 1A.

Q: What are the key differences between these substitute parts?

A: The primary differences are operating temperature range, current rating, and shell material composition. The A-USB B/SMT uses brass shell material and supports wider temperature and higher current specifications. The TE Connectivity parts use phosphor bronze, steel, and stainless steel shell materials. Inventory availability differs significantly, with 1734346-4 offering the highest stock level.

Q: Can I use 1734346-1 or 1734346-4 in place of A-USB B/SMT in all applications?

A: Substitution is valid only when application operating temperature remains within 0°C to 50°C and current requirements do not exceed 1A. Applications requiring extended temperature range or higher current capacity require the A-USB B/SMT.

Q: What is the difference between 1734346-1 and 1734346-4?

A: Both parts are identical in electrical and mechanical specifications. The primary distinction is inventory availability, with 1734346-4 stocked at 11782 units and 1734346-1 at 2400 units.

Q: Are all three parts RoHS compliant?

A: Yes, all three parts are ROHS3 compliant and maintain MSL 1 (Unlimited) moisture sensitivity rating.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message