USB50805CE3/TR13 Equivalent & Substitute Parts

Part Overview

The USB50805CE3/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 5V reverse standoff voltage and provides 13V maximum clamping voltage at peak pulse current. The part is currently in active production status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

USB50805CE3/TR13

Microchip TechnologyIn Stock: 1176USB50805CE3/TR13 Datasheet

Current PartRFQ

USB50805CE3/TR7

Microchip TechnologyIn Stock: 2604USB50805CE3/TR7 Datasheet

DirectRFQ

LCDA05.TBT

Semtech CorporationIn Stock: 18303LCDA05.TBT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the USB50805CE3/TR13 are classified based on strict electrical and mechanical compatibility criteria. The primary substitution logic is determined by the following parameters:

Critical Matching Parameters:

• Voltage - Reverse Standoff: 5V
• Voltage - Breakdown (Min): 6V
• Current - Peak Pulse (8/20µs): 5A
• Bidirectional Channels: 2
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount

Direct Equivalent Classification: USB50805CE3/TR7 is classified as a direct manufacturer equivalent. This part shares identical electrical specifications with the main part number, including 13V maximum clamping voltage, 500W peak pulse power, and 3pF capacitance at 1MHz. The only difference is the packaging format (TR7 reel configuration versus TR13 reel configuration), which does not affect electrical performance or mechanical fit.

Similar Substitute Classification: LCDA05.TBT is classified as a similar substitute manufactured by Semtech Corporation. This part maintains compatibility across critical parameters including 5V reverse standoff voltage, 6V minimum breakdown voltage, 5A peak pulse current, and identical 8-SOIC package dimensions. However, this substitute exhibits the following parameter variations: 11V maximum clamping voltage (versus 13V), 300W peak pulse power (versus 500W), 5pF capacitance at 1MHz (versus 3pF), and maximum operating temperature of 125°C (versus 150°C).

Parameter Comparison

Engineering Selection Recommendations

USB50805CE3/TR7 Selection Criteria: The USB50805CE3/TR7 is recommended as the primary substitute when direct electrical and thermal equivalence is required. This part maintains 100% compatibility with the USB50805CE3/TR13 across all critical electrical parameters and thermal operating range. Both parts are manufactured by Microchip Technology, carry identical RoHS3 compliance certification, and maintain REACH unaffected status. The substitution is appropriate for applications requiring the full 500W peak pulse power rating and 13V clamping voltage specification. Inventory availability of 2529 pieces supports production requirements.

LCDA05.TBT Selection Criteria: The LCDA05.TBT is recommended as an alternative substitute when application requirements permit reduced clamping voltage (11V versus 13V), lower peak pulse power (300W versus 500W), and maximum operating temperature limited to 125°C. This Semtech Corporation part maintains compatibility with the 5V reverse standoff voltage, 6V breakdown voltage, and 5A peak pulse current specifications. The LCDA05.TBT is suitable for general-purpose transient protection applications where the lower clamping voltage and power rating do not compromise circuit protection requirements. RoHS3 compliance and REACH unaffected status are maintained. High inventory availability of 18251 pieces supports extended production runs.

Frequently Asked Questions (FAQ)

Q: Can USB50805CE3/TR7 be used as a direct replacement for USB50805CE3/TR13?

A: Yes. The USB50805CE3/TR7 is a direct electrical equivalent with identical voltage ratings (5V standoff, 13V clamping), current ratings (5A peak pulse), power dissipation (500W), and operating temperature range (-55 to 150°C). The difference in part number designation reflects only the reel configuration (TR7 versus TR13) used for tape and reel packaging. Both parts are manufactured by Microchip Technology and carry identical compliance certifications.

Q: What are the limitations of using LCDA05.TBT as a substitute?

A: The LCDA05.TBT exhibits three parameter differences: (1) Maximum clamping voltage is 11V instead of 13V, reducing overvoltage margin by 2V; (2) Peak pulse power rating is 300W instead of 500W, limiting energy dissipation capability; (3) Maximum operating temperature is 125°C instead of 150°C, restricting use in high-temperature environments. These differences require circuit-level evaluation to confirm application compatibility.

Q: Are all substitute parts in the same physical package?

A: Yes. All three parts—USB50805CE3/TR13, USB50805CE3/TR7, and LCDA05.TBT—use the 8-SOIC package with 0.154-inch (3.90mm) width. Physical dimensions and PCB footprints are identical, enabling direct mechanical substitution without layout modifications.

Q: Do all parts meet the same compliance standards?

A: Yes. All three parts are RoHS3 compliant, REACH unaffected, and carry Moisture Sensitivity Level 1 (unlimited shelf life). Compliance certifications are equivalent across all substitute options.

Q: Which substitute should be selected for Ethernet protection applications?

A: The USB50805CE3/TR7 is the recommended choice for Ethernet applications, as it maintains the full 13V clamping voltage and 500W power rating specified for the original USB50805CE3/TR13. The LCDA05.TBT is designated for general-purpose applications and may not provide equivalent protection margins for Ethernet transient events.

Q: What is the difference between TR7 and TR13 packaging designations?

A: TR7 and TR13 refer to different reel configurations for tape and reel packaging. TR7 uses a 7-inch reel, while TR13 uses a 13-inch reel. Both configurations contain the identical electronic component with no electrical performance differences. Selection depends on manufacturing equipment compatibility and inventory management requirements.