USBQ50424CE3/TR7 Equivalent & Substitute Parts

Part Overview

The USBQ50424CE3/TR7 is a Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, designed for transient overvoltage protection in Ethernet applications. This bidirectional Zener-type TVS diode operates with a 24V reverse standoff voltage and provides 57V clamping at peak pulse current. The device is packaged in a 4-VDFN (QFN-143) surface mount configuration and is ROHS3 compliant with unlimited moisture sensitivity rating.

The USBQ50424CE3/TR7 is classified as an active product with full manufacturer support. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and inventory optimization while maintaining identical electrical and mechanical specifications.

Substiute Parts

USBQ50424CE3/TR7

Microchip TechnologyIn Stock: 1039USBQ50424CE3/TR7 Datasheet

Current PartRFQ

USBQNM50424CE3/TR7

Microchip TechnologyIn Stock: 6697USBQNM50424CE3/TR7 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the USBQ50424CE3/TR7 are identified based on strict electrical and mechanical parameter matching. The substitution criteria are:

Critical Parameters for Substitution:

• Voltage - Reverse Standoff (Typ): 24V
• Voltage - Clamping (Max) @ Ipp: 57V
• Current - Peak Pulse (8/20µs): 5A
• Power - Peak Pulse: 500W
• Package / Case: 4-VDFN (QFN-143)
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Operating Temperature Range: -55°C to 125°C

All substitute parts must match these parameters exactly to ensure functional equivalence in Ethernet protection applications. Compliance certifications (ROHS3, REACH Unaffected) and moisture sensitivity level (MSL 1) are maintained across all equivalent parts.

Parameter Comparison

Engineering Selection Recommendations

Both the USBQ50424CE3/TR7 and USBQNM50424CE3/TR7 are active products from Microchip Technology with identical electrical specifications and mechanical packaging. Selection between these parts should be based on:

Availability and Inventory: The USBQNM50424CE3/TR7 maintains higher inventory levels (6614 pcs) compared to the USBQ50424CE3/TR7 (983 pcs), making it suitable for high-volume production requirements or extended supply chain planning.

Compliance and Certifications: Both parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory compatibility in all target markets. Moisture sensitivity level (MSL 1) is identical, requiring no special handling modifications.

Application Continuity: Both parts are specified for Ethernet protection applications with identical transient suppression characteristics. Direct substitution is supported without circuit redesign or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can USBQNM50424CE3/TR7 be used as a direct replacement for USBQ50424CE3/TR7?

A: Yes. Both parts are manufactured by Microchip Technology with identical electrical parameters (24V standoff, 57V clamping, 5A peak pulse current), identical package configuration (4-VDFN QFN-143), and identical compliance certifications. Direct substitution is supported without circuit modification.

Q: Are there any differences in the package or mounting requirements?

A: No. Both parts use identical 4-VDFN (QFN-143) surface mount packaging. PCB footprint, reflow profile, and assembly procedures remain unchanged between the two part numbers.

Q: What is the significance of the part number variation between USBQ50424CE3/TR7 and USBQNM50424CE3/TR7?

A: The part numbers reflect different manufacturing batches or internal Microchip designations. The "NM" designation in USBQNM50424CE3/TR7 does not indicate functional or electrical differences. Both parts meet identical specifications for Ethernet transient voltage suppression.

Q: Are both parts suitable for high-temperature applications?

A: Yes. Both parts operate across the full temperature range of -55°C to 125°C (junction temperature), supporting industrial and automotive Ethernet applications requiring extended thermal performance.

Q: What is the moisture sensitivity level, and does it affect handling?

A: Both parts carry MSL 1 (Unlimited), indicating unlimited shelf life without moisture absorption concerns. Standard ESD precautions apply, but no special dry-pack storage or baking procedures are required.

Q: Can these parts be used in applications other than Ethernet?

A: The specifications provided indicate Ethernet as the primary application. Use in other applications requires independent verification that the 24V standoff voltage, 57V clamping voltage, and 5A peak pulse current specifications align with circuit protection requirements.