SLVU2.8-TP Equivalent & Substitute Parts

Part Overview

The SLVU2.8-TP is a Transient Voltage Suppressor (TVS) diode manufactured by Micro Commercial Co, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 2.8V reverse standoff voltage with an 8V maximum clamping voltage and 5A peak pulse current rating in a SOT-23 package. The product is currently obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

SLVU2.8-TP

Micro Commercial CoIn Stock: 1957SLVU2.8-TP Datasheet

Current PartRFQ

SLVU2.8HTG

Littelfuse Inc.In Stock: 51054SLVU2.8HTG Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SLVU2.8-TP is determined by the following critical electrical and mechanical parameters:

Voltage Parameters: The reverse standoff voltage (2.8V max) and breakdown voltage (3V min) must remain identical to maintain circuit protection thresholds. The clamping voltage determines the maximum transient voltage presented to protected circuitry.

Current Rating: Peak pulse current capacity must meet or exceed the original 5A specification to ensure adequate transient energy dissipation.

Package Compatibility: The SOT-23-3 surface-mount package is mandatory for PCB layout compatibility.

Environmental Compliance: RoHS3 compliance and unlimited moisture sensitivity level (MSL 1) ensure regulatory and manufacturing process compatibility.

The SLVU2.8HTG qualifies as a substitute based on matching voltage parameters (2.8V standoff, 3V breakdown) and identical package type (SOT-23-3), despite differences in clamping voltage and current rating specifications.

Parameter Comparison

Engineering Selection Recommendations

The SLVU2.8HTG is an active substitute for the obsolete SLVU2.8-TP. Both components share identical voltage protection thresholds (2.8V standoff, 3V breakdown) and package configuration (SOT-23-3), ensuring direct PCB compatibility and equivalent circuit protection function.

The SLVU2.8HTG offers enhanced performance specifications with higher peak pulse current (40A versus 5A) and increased power dissipation capability (600W versus 500W). These improvements provide additional design margin without compromising the core protection voltage characteristics.

Both components maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), ensuring compatibility with standard manufacturing and storage processes. The substitute is manufactured by Littelfuse Inc., an established supplier in the TVS diode category with active product status, supporting long-term availability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can SLVU2.8HTG be used as a direct replacement for SLVU2.8-TP?

A: Yes. Both components share identical reverse standoff voltage (2.8V), breakdown voltage (3V), and SOT-23-3 package configuration. The SLVU2.8HTG provides equivalent circuit protection function with enhanced current and power ratings.

Q: What are the key differences between these parts?

A: The SLVU2.8HTG features higher peak pulse current (40A versus 5A), increased clamping voltage (15V versus 8V), and lower capacitance (2pF versus 13pF). The original component operates to -55°C while the substitute operates to -40°C minimum.

Q: Are there any package compatibility concerns?

A: No. Both components use the SOT-23-3 package (TO-236-3, SC-59). PCB footprints and land patterns are identical, requiring no layout modifications.

Q: Do both parts meet regulatory requirements?

A: Yes. Both SLVU2.8-TP and SLVU2.8HTG are ROHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, meeting standard manufacturing and storage requirements.

Q: Why does the substitute have higher clamping voltage?

A: The SLVU2.8HTG is designed for higher transient energy applications. The increased clamping voltage (15V) and current rating (40A) provide additional protection margin while maintaining the same voltage threshold for circuit activation.

Q: Is the lower operating temperature minimum of SLVU2.8HTG a limitation?

A: The SLVU2.8HTG operates from -40°C to 125°C versus -55°C to 125°C for the original. This difference is relevant only if the application requires operation below -40°C. For standard industrial and commercial temperature ranges, both components are equivalent.