LC03-6R2 Equivalent & Substitute Parts

Part Overview

The LC03-6R2 is a steering TVS diode manufactured by onsemi, designed for transient voltage suppression in general-purpose applications. This component features a 5V reverse standoff voltage, 20V clamping voltage, and 100A peak pulse current capability in an 8-SOIC surface mount package. The part is currently obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

LC03-6R2

onsemiIn Stock: 1858LC03-6R2 Datasheet

Current PartRFQ

LC03-6R2G

onsemiIn Stock: 23988LC03-6R2G Datasheet

DirectRFQ

LC03-6.TBT

Semtech CorporationIn Stock: 40583LC03-6.TBT Datasheet

SimilarRFQ

SP03-6BTG

Littelfuse Inc.In Stock: 20037SP03-6BTG Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LC03-6R2 is determined by the following critical parameters:

• Voltage rating compatibility (reverse standoff and clamping voltage)
• Peak pulse current capability
• Package and pinout compatibility (8-SOIC form factor)
• Operating temperature range suitability
• Unidirectional steering diode configuration with 2 channels

The substitute parts are grouped into two categories:

Direct Equivalent (Active Status): LC03-6R2G maintains identical electrical specifications and package configuration, with the primary difference being active product status and improved RoHS compliance.

Similar Substitutes (Higher Performance): LC03-6.TBT and SP03-6BTG provide equivalent or enhanced electrical performance with slightly different voltage standoff ratings (6V) and higher peak pulse current capabilities (100A to 150A), suitable for applications requiring additional margin or higher transient energy dissipation.

Parameter Comparison

Engineering Selection Recommendations

LC03-6R2G is the primary recommended substitute for direct replacement of the obsolete LC03-6R2. This part maintains identical electrical specifications and package configuration while offering active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment.

LC03-6.TBT (Semtech Corporation) serves as an alternative for applications requiring ROHS3 compliance and active product support. The 6V reverse standoff voltage provides additional margin over the 5V specification. Operating temperature range is limited to -55°C to 125°C, which may require evaluation for applications requiring the full -55°C to 150°C range of the original part.

SP03-6BTG (Littelfuse Inc.) is suitable for applications requiring enhanced transient energy dissipation, offering 150A peak pulse current and 2800W peak pulse power compared to the 100A and 2000W specifications of the LC03-6R2. The 6V reverse standoff voltage and ROHS3 compliance are maintained. Operating temperature range is -40°C to 125°C, which may require evaluation for low-temperature applications below -40°C.

Frequently Asked Questions (FAQ)

Q: Can LC03-6R2G be used as a direct replacement for LC03-6R2?

A: Yes. LC03-6R2G maintains identical electrical specifications, voltage ratings, current ratings, and 8-SOIC package configuration. The primary differences are active product status and ROHS3 compliance.

Q: What is the difference between the 5V and 6V reverse standoff voltage ratings?

A: The LC03-6R2 specifies 5V typical reverse standoff voltage, while LC03-6.TBT and SP03-6BTG specify 6V maximum. Both maintain the same 6.8V minimum breakdown voltage and 20V clamping voltage. The 6V standoff rating provides additional voltage margin in the standoff region.

Q: Can SP03-6BTG replace LC03-6R2 in all applications?

A: SP03-6BTG is electrically compatible for voltage and clamping specifications. However, the operating temperature range is limited to -40°C to 125°C compared to the LC03-6R2 range of -55°C to 150°C. Verify temperature requirements before substitution. The higher peak pulse current (150A vs 100A) is a performance enhancement suitable for higher transient energy applications.

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

A: Yes. All substitute parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package, ensuring mechanical and electrical compatibility with existing PCB layouts.

Q: What is the inventory status of these substitute parts?

A: LC03-6R2G has 23,920 units in stock, LC03-6.TBT has 40,565 units in stock, and SP03-6BTG has 20,007 units in stock, providing adequate availability for production requirements.

Q: Are all substitute parts RoHS compliant?

A: LC03-6R2G, LC03-6.TBT, and SP03-6BTG are all ROHS3 compliant. The original LC03-6R2 is RoHS non-compliant, making the substitutes necessary for regulatory compliance in new designs.