SM16LC03CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SM16LC03CE3/TR13 is a bidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This surface-mount component features 8 bidirectional channels in a 16-SOIC package and operates across an industrial temperature range of -55°C to 150°C. The device is currently in active production status with 740 units available in inventory.

Substitute parts become necessary when the primary component experiences supply constraints, end-of-life transitions, or when alternative sourcing is required to optimize procurement strategies while maintaining circuit protection performance.

Substiute Parts

SM16LC03CE3/TR13

Microchip TechnologyIn Stock: 767SM16LC03CE3/TR13 Datasheet

Current PartRFQ

S16LCC03-8

SMC Diode SolutionsIn Stock: 1229S16LCC03-8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SM16LC03CE3/TR13 is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Voltage - Reverse Standoff: 3.3V (typical)
• Voltage - Breakdown (Min): 4V
• Bidirectional Channels: 8
• Package Type: 16-SOIC surface mount
• Capacitance @ 1MHz: 25pF
• RoHS3 Compliance

Allowable Variation Parameters:

• Voltage - Clamping (Max) @ Ipp: Substitute must not exceed 9V
• Current - Peak Pulse: Substitute must meet or exceed 5A (8/20µs)
• Power - Peak Pulse: Substitute must meet or exceed 300W
• Operating Temperature Range: Substitute must cover minimum -55°C to 150°C

The substitute part S16LCC03-8 from SMC Diode Solutions meets the core package, voltage, and channel requirements but exhibits reduced current handling capability (1A versus 5A) and a lower maximum clamping voltage (7V versus 9V), resulting in restricted application compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Component (SM16LC03CE3/TR13): The SM16LC03CE3/TR13 is the recommended selection for new designs and production applications. This component maintains active product status with established manufacturing support, ROHS3 compliance, and REACH unaffected regulatory standing. The extended operating temperature range to 150°C and full 5A peak pulse current rating provide maximum design flexibility for general-purpose transient voltage suppression.

Substitute Component (S16LCC03-8): The S16LCC03-8 carries obsolete product status, indicating discontinued manufacturing and limited future availability. Additionally, this component exhibits REACH affected regulatory status, requiring enhanced compliance documentation. The reduced peak pulse current (1A versus 5A) and lower clamping voltage (7V versus 9V) restrict this substitute to applications with lower transient energy requirements. The maximum operating temperature of 125°C versus 150°C further constrains thermal design margins.

Substitution with S16LCC03-8 is permissible only in applications where peak pulse currents do not exceed 1A and clamping voltage requirements remain below 7V, with operating temperatures maintained below 125°C.

Frequently Asked Questions (FAQ)

Q: Can the S16LCC03-8 directly replace the SM16LC03CE3/TR13 in existing designs?

A: Direct replacement is not universally applicable. The S16LCC03-8 exhibits reduced current handling (1A versus 5A) and lower clamping voltage (7V versus 9V). Replacement is permissible only when circuit transient energy levels remain within the substitute's reduced ratings and operating temperature does not exceed 125°C.

Q: What is the significance of the product status difference between these parts?

A: The SM16LC03CE3/TR13 maintains active production status, ensuring continued availability and manufacturing support. The S16LCC03-8 is obsolete, indicating discontinued production and limited inventory availability. Active status provides superior long-term supply chain reliability.

Q: Are both components compatible with the same PCB footprint?

A: Yes. Both components utilize the 16-SOIC (0.154", 3.90mm width) surface-mount package, ensuring identical PCB footprint compatibility. However, footprint compatibility does not guarantee functional equivalence due to the electrical parameter differences noted in the parameter comparison table.

Q: What regulatory compliance differences exist between these components?

A: The SM16LC03CE3/TR13 is ROHS3 compliant and REACH unaffected. The S16LCC03-8 is ROHS3 compliant but REACH affected, requiring additional regulatory documentation and compliance verification for applications subject to REACH requirements.

Q: How do the operating temperature ranges affect component selection?

A: The SM16LC03CE3/TR13 operates from -55°C to 150°C, while the S16LCC03-8 operates from -55°C to 125°C. Applications requiring operation above 125°C must use the primary component. The 25°C difference in maximum temperature rating impacts thermal design margins and reliability projections in high-temperature environments.

Q: What is the impact of the current rating difference on circuit protection?

A: The SM16LC03CE3/TR13 handles 5A peak pulse current (8/20µs), while the S16LCC03-8 handles only 1A. This 5:1 difference directly affects the maximum transient energy the component can suppress. Applications with higher transient currents require the primary component to prevent component failure and loss of protection.