USB50803C-A/TR13 Equivalent & Substitute Parts

Part Overview

The USB50803C-A/TR13 is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, designed for transient overvoltage protection in Ethernet applications. This surface-mount component operates with a 3.3V reverse standoff voltage and provides 11V maximum clamping voltage at peak pulse current. The device is classified as Active product status and is available in 8-SOIC packaging suitable for high-density circuit board layouts. Substitute parts are identified to address inventory availability, packaging variations, or supply chain requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

USB50803C-A/TR13

Microchip TechnologyIn Stock: 1100USB50803C-A/TR13 Datasheet

Current PartRFQ

USB50803C/TR7

Microchip TechnologyIn Stock: 1172USB50803C/TR7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the USB50803C-A/TR13 are identified based on strict equivalence across all critical electrical and mechanical parameters. The substitution logic is based on the following key criteria:

Electrical Parameters (Must Match Exactly):

• Voltage - Reverse Standoff (Typ): 3.3V
• Voltage - Breakdown (Min): 4V
• Voltage - Clamping (Max) @ Ipp: 11V
• Current - Peak Pulse (8/20µs): 5A
• Power - Peak Pulse: 500W
• Capacitance @ 1MHz: 3pF
• Operating Temperature Range: -55°C to 150°C

Mechanical Parameters (Must Match Exactly):

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Bidirectional Channels: 2

Functional Parameters (Must Match Exactly):

• Type: Zener
• Applications: Ethernet
• Manufacturer: Microchip Technology
• Base Product Number: USB50803

Parts are grouped as direct substitutes only when all parameters listed above are identical. Packaging variation (Tape & Reel designation) does not affect electrical or mechanical compatibility and is therefore not a substitution barrier.

Parameter Comparison

Engineering Selection Recommendations

The USB50803C/TR7 is a direct functional and mechanical equivalent to the USB50803C-A/TR13. Both components share identical electrical specifications, package geometry, and compliance certifications. Selection between these parts is determined by supply chain availability and packaging reel specifications (TR13 versus TR7 designations indicate different tape reel configurations).

Both parts maintain Active product status with Microchip Technology, ensuring continued manufacturing support and supply reliability. Compliance profiles are identical: both are RoHS non-compliant and REACH Unaffected, with Moisture Sensitivity Level 1 (Unlimited), indicating no special storage or handling requirements beyond standard component practices.

The 8-SOIC package footprint is identical across both parts, permitting direct substitution on printed circuit boards without layout modifications. Surface-mount assembly processes require no adjustment when transitioning between these equivalents.

Frequently Asked Questions (FAQ)

Q: Can USB50803C/TR7 be used as a direct replacement for USB50803C-A/TR13 in production?

A: Yes. Both parts are electrically and mechanically identical. The TR13 and TR7 designations refer only to tape reel packaging configurations and do not affect component performance or compatibility. Direct substitution is permissible in all applications.

Q: What do the TR13 and TR7 designations indicate?

A: These designations specify the tape reel configuration used for automated assembly. TR13 and TR7 represent different reel sizes and quantities per reel. The electrical and mechanical specifications of the component itself remain unchanged.

Q: Are there any temperature or voltage derating considerations when substituting between these parts?

A: No. Both parts operate identically across the full temperature range of -55°C to 150°C (TJ) and maintain the same voltage specifications: 3.3V reverse standoff, 4V minimum breakdown, and 11V maximum clamping voltage.

Q: Do these parts require different PCB footprints?

A: No. Both components use the 8-SOIC package with identical dimensions (0.154" width, 3.90mm). PCB layouts, solder pad patterns, and assembly processes are interchangeable.

Q: What is the significance of the RoHS non-compliant status?

A: Both parts carry identical RoHS non-compliant designation. This status applies uniformly across the product line and does not differentiate between the two part numbers. Compliance requirements must be evaluated at the system level based on end-use application and regional regulations.

Q: Are moisture sensitivity or storage requirements different between these parts?

A: No. Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control or baking requirements during storage or handling. Standard component storage practices apply to both equivalents.

Q: Can these parts be mixed within a single production batch?

A: Yes. Since electrical, mechanical, and compliance specifications are identical, both parts can be used interchangeably within the same assembly run without performance degradation or reliability concerns.