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Equivalent & Substitute Parts for A-USB/2-A-TOP-R
Part Overview
The A-USB/2-A-TOP-R is a USB 2.0 Type-A receptacle connector manufactured by Assmann WSW Components, designed for vertical through-hole mounting with board lock features. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The connector accommodates 4-position solder termination with a current rating of 1.5A and operates across the temperature range of -55°C to 85°C.
Substiute Parts
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 |
| Operating Temperature | -55°C ~ 85°C |
| Current Rating (Amps) | 1.5A |
| Mating Cycles | 1500 |
| Material Flammability Rating | UL94 V-0 |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution eligibility for the A-USB/2-A-TOP-R is determined by strict alignment with the following core parameters:
- 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
- Moisture Sensitivity Level: 1 (Unlimited)
- REACH Status: REACH Unaffected
All substitute parts listed below meet these core electrical and mechanical parameters. Variations in secondary attributes such as shell material, contact finish, insulation color, and voltage rating do not preclude substitution when core parameters align.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Connector Type | USB Spec | Contacts | Gender | Mounting | Termination | Board Lock | Operating Temp | Current Rating | Mating Cycles | Flammability | MSL | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A-USB/2-A-TOP-R | Assmann WSW | Obsolete | USB-A | USB 2.0 | 4 | Receptacle | Through Hole Vertical | Solder | Yes | -55°C ~ 85°C | 1.5A | 1500 | UL94 V-0 | 1 | Not Specified |
| A-USB/2-A-TOP | Assmann WSW | Active | USB-A | USB 2.0 | 4 | Receptacle | Through Hole Vertical | Solder | Yes | -55°C ~ 85°C | 1.5A | 1500 | UL94 V-0 | 1 | ROHS3 Compliant |
| 1002-021-01000 | CNC Tech | Active | USB-A | USB 2.0 | 4 | Receptacle | Through Hole Vertical | Solder | Yes | -55°C ~ 85°C | 1.5A | 1500 | UL94 V-0 | 1 | ROHS3 Compliant |
| USB-A-S-F-B-VT | Samtec Inc. | Active | USB-A | USB 2.0 | 4 | Receptacle | Through Hole Vertical | Solder | Yes | -50°C ~ 85°C | Not Specified | 1500 | Not Specified | 1 | ROHS3 Compliant |
| USB-B-S-S-B-VT | Samtec Inc. | Active | USB-A | USB 2.0 | 4 | Receptacle | Through Hole Vertical | Solder | Yes | -50°C ~ 85°C | Not Specified | 1500 | UL94 V-0 | 1 | ROHS3 Compliant |
| USB-B-S-S-W-VT | Samtec Inc. | Active | USB-A | USB 2.0 | 4 | Receptacle | Through Hole Vertical | Solder | Yes | -50°C ~ 85°C | Not Specified | 1500 | UL94 V-0 | 1 | ROHS3 Compliant |
| USBR-A-S-F-O-VU | Samtec Inc. | Active | USB-A | USB 2.0 | 4 | Receptacle | Through Hole Vertical | Solder | Yes | -50°C ~ 85°C | Not Specified | 1500 | Not Specified | 1 | ROHS3 Compliant |
| USBR-A-S-S-O-VU | Samtec Inc. | Active | USB-A | USB 2.0 | 4 | Receptacle | Through Hole Vertical | Solder | Yes | -50°C ~ 85°C | Not Specified | 1500 | UL94 V-0 | 1 | ROHS3 Compliant |
Engineering Selection Recommendations
The A-USB/2-A-TOP from Assmann WSW Components is the primary direct substitute, maintaining identical specifications and operating temperature range while offering active product status and ROHS3 compliance. This part is the preferred choice for direct replacement in existing designs.
The 1002-021-01000 from CNC Tech provides an alternative parametric equivalent with active status and ROHS3 compliance. This part maintains all core electrical and mechanical parameters and offers higher inventory availability.
Samtec Inc. parts (USB-A-S-F-B-VT, USB-B-S-S-B-VT, USB-B-S-S-W-VT, USBR-A-S-F-O-VU, USBR-A-S-S-O-VU) are parametric equivalents with active product status and ROHS3 compliance. These parts meet core substitution criteria but operate at a reduced minimum temperature of -50°C instead of -55°C. Selection among Samtec variants depends on specific requirements for shielding, shell material, contact finish, and insulation color.
All substitute parts maintain MSL 1 (Unlimited) moisture sensitivity and REACH Unaffected status, ensuring compliance with environmental and regulatory requirements.
Frequently Asked Questions (FAQ)
Q: Can A-USB/2-A-TOP be used as a direct replacement for A-USB/2-A-TOP-R?
A: Yes. A-USB/2-A-TOP is a direct substitute with identical core parameters. The primary difference is product status (Active vs. Obsolete) and packaging (Tray vs. unspecified). Both parts maintain the same electrical and mechanical specifications.
Q: What is the difference between the Assmann and CNC Tech parts?
A: Both A-USB/2-A-TOP and 1002-021-01000 meet identical core parameters. Differences exist in shell material (Steel SPCC vs. Brass), contact finish specification, and insulation color. CNC Tech offers significantly higher inventory availability (94,055 units vs. 727 units).
Q: Why do Samtec parts have a lower operating temperature minimum?
A: Samtec parts operate from -50°C to 85°C, compared to -55°C to 85°C for Assmann and CNC Tech parts. This represents a 5°C reduction in minimum operating temperature. Selection depends on whether your application requires operation below -50°C.
Q: What is the significance of shielding in the Samtec USB-B series?
A: USB-B-S-S-B-VT and USB-B-S-S-W-VT include shielding with Phosphor Bronze shell material, whereas other variants are unshielded. Shielding provides electromagnetic interference (EMI) protection. Selection depends on EMI requirements in your application.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All active substitute parts listed are ROHS3 compliant. The original A-USB/2-A-TOP-R does not specify RoHS status due to its obsolete classification.
Q: What packaging formats are available?
A: Assmann A-USB/2-A-TOP, CNC Tech 1002-021-01000, and all Samtec variants are supplied in Tray packaging. Original packaging for A-USB/2-A-TOP-R is not specified.
Q: Can I use parts with different insulation colors interchangeably?
A: Yes. Insulation color (White, Black, Orange) is a cosmetic attribute that does not affect electrical or mechanical function. Selection can be based on application requirements or inventory availability.
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