A-USB/2-A-TOP USB 2.0 Type-A Receptacle Connector Equivalent & Substitute Parts

Part Overview

The A-USB/2-A-TOP is an active USB 2.0 Type-A receptacle connector manufactured by Assmann WSW Components. This through-hole vertical mount connector is designed for applications requiring a 4-position USB 2.0 interface with board lock features. The part is ROHS3 compliant and maintains an operating temperature range of -55°C to 85°C with a current rating of 1.5A. Equivalent and substitute parts are identified based on matching core electrical and mechanical parameters to ensure functional compatibility in circuit designs.

Key Parameters

Parameter	Value
Connector Type	USB-A (USB TYPE-A)
Specifications	USB 2.0
Number of Contacts	4
Gender	Receptacle
Mounting Type	Through Hole
Mounting Feature	Vertical
Termination	Solder
Features	Board Lock
Current Rating	1.5A
Mating Cycles	1500
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the A-USB/2-A-TOP are qualified based on the following core parameters that determine functional equivalence:

Primary Matching Criteria:

Connector Type: USB-A (USB TYPE-A)
Specifications: USB 2.0
Number of Contacts: 4
Gender: Receptacle
Mounting Type: Through Hole
Mounting Feature: Vertical
Termination: Solder
Features: Board Lock
Mating Cycles: 1500
Material Flammability Rating: UL94 V-0
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

All identified substitute parts meet these core electrical and mechanical parameters. Variations in contact finish, shell material, insulation color, and voltage rating do not affect functional substitution within the USB 2.0 Type-A receptacle category.

Parameter Comparison

Parameter	A-USB/2-A-TOP (Assmann)	1002-021-01000 (CNC Tech)	USB-A-S-F-B-VT (Samtec)	USB-B-S-S-B-VT (Samtec)	USB-B-S-S-W-VT (Samtec)	USBR-A-S-S-O-VU (Samtec)
Connector Type	USB-A	USB-A	USB-A	USB-A	USB-A	USB-A
Specifications	USB 2.0	USB 2.0	USB 2.0	USB 2.0	USB 2.0	USB 2.0
Number of Contacts	4	4	4	4	4	4
Gender	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Mounting Feature	Vertical	Vertical	Vertical	Vertical	Vertical	Vertical
Termination	Solder	Solder	Solder	Solder	Solder	Solder
Features	Board Lock	Board Lock	Board Lock	Board Lock	Board Lock	Board Lock
Mating Cycles	1500	1500	1500	1500	1500	1500
Material Flammability Rating	UL94 V-0	UL94 V-0	—	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Operating Temperature	-55°C ~ 85°C	-55°C ~ 85°C	-50°C ~ 85°C	-50°C ~ 85°C	-50°C ~ 85°C	-50°C ~ 85°C
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All identified substitute parts maintain active product status and ROHS3 compliance, ensuring regulatory alignment with the original A-USB/2-A-TOP connector. The 1002-021-01000 from CNC Tech provides the closest operating temperature match (-55°C to 85°C) and is recommended for applications requiring the full temperature range of the original part. The Samtec alternatives (USB-A-S-F-B-VT, USB-B-S-S-B-VT, USB-B-S-S-W-VT, and USBR-A-S-S-O-VU) operate within a narrower temperature range (-50°C to 85°C) and are suitable for standard industrial and consumer applications. All parts maintain identical USB 2.0 specifications, 4-position contact configuration, and 1500 mating cycle rating, ensuring functional interchangeability in circuit designs.

Frequently Asked Questions (FAQ)

Q: Can I substitute the A-USB/2-A-TOP with any of the listed parts? A: Yes. All listed parts meet the core electrical and mechanical parameters required for USB 2.0 Type-A receptacle functionality, including connector type, contact count, mounting configuration, and board lock features.

Q: What is the difference between the Assmann A-USB/2-A-TOP and the CNC Tech 1002-021-01000? A: Both parts share identical USB 2.0 specifications, mounting configuration, and operating temperature range (-55°C to 85°C). The primary differences are shell material (Steel vs. Brass) and contact finish, which do not affect electrical performance.

Q: Are the Samtec alternatives suitable for my application? A: Samtec alternatives are suitable for applications operating between -50°C and 85°C. If your design requires operation below -50°C, the Assmann A-USB/2-A-TOP or CNC Tech 1002-021-01000 are recommended.

Q: Do all substitute parts have the same current rating? A: The A-USB/2-A-TOP specifies 1.5A current rating. Samtec parts do not specify current rating in the provided data. For applications requiring confirmed 1.5A capability, the Assmann or CNC Tech parts are recommended.

Q: What packaging is used for these connectors? A: All parts are supplied in Tray packaging suitable for automated assembly and component handling.

Q: Are all parts RoHS compliant? A: Yes. All listed parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

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