SM16LC05/TR13 Equivalent & Substitute Parts

Part Overview

The SM16LC05/TR13 is an 8-channel unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology. This surface-mount component operates with a 5V reverse standoff voltage and provides 11V maximum clamping voltage at peak pulse current. The device is designed for general-purpose transient protection applications and is currently in active production status.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the same package footprint and mounting technology. The SM16LC05/TR13 has documented substitute options that provide alternative sourcing while maintaining core functional parameters.

Substiute Parts

SM16LC05/TR13

Microchip TechnologyIn Stock: 912SM16LC05/TR13 Datasheet

Current PartRFQ

CDNBS16-T05

Bourns Inc.In Stock: 2602CDNBS16-T05 Datasheet

DirectRFQ

S16LC05-8

SMC Diode SolutionsIn Stock: 3098S16LC05-8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SM16LC05/TR13 are classified based on the following critical parameters that determine functional equivalence:

Primary Substitution Criteria:

• Reverse standoff voltage: 5V (Typ)
• Breakdown voltage minimum: 6V
• Package type: 16-SOIC surface mount
• Unidirectional channel configuration: 8 channels
• Mounting technology: Surface mount

Substitution Categories:

Direct Substitutes maintain all primary electrical parameters within the specified ranges. These parts can be used interchangeably in applications where the clamping voltage and peak pulse current ratings meet or exceed the design requirements.

Similar Substitutes share the same reverse standoff voltage, breakdown voltage, and package footprint but may differ in secondary parameters such as clamping voltage, peak pulse current, or operating temperature range. These parts are suitable for applications with different transient protection requirements or environmental constraints.

Parameter Comparison

Engineering Selection Recommendations

SM16LC05/TR13 (Microchip Technology)

This is the primary reference part. It is in active production with 876 units in stock. The device is RoHS non-compliant and carries no REACH restrictions. Selection of this part is appropriate for applications where RoHS compliance is not a requirement and existing supply chains are established.

CDNBS16-T05 (Bourns Inc.) - Direct Substitute

The CDNBS16-T05 shares identical reverse standoff voltage (5V), breakdown voltage (6V), and package configuration (16-SOIC) with the SM16LC05/TR13. This part is ROHS3 compliant and carries higher peak pulse current capability (42A versus 5A) and higher clamping voltage (24V versus 11V). The CDNBS16-T05 is suitable for applications requiring enhanced transient protection or RoHS compliance. Inventory availability is 2500 units. The lower capacitance (15pF versus 25pF) may be advantageous in high-frequency applications.

S16LC05-8 (SMC Diode Solutions) - Similar Substitute

The S16LC05-8 maintains the 5V reverse standoff voltage and 6V breakdown voltage but operates with a lower peak pulse current (1A versus 5A) and lower clamping voltage (9.8V versus 11V). This part is ROHS3 compliant and carries REACH restrictions. The operating temperature range is limited to -55 to 125°C compared to -55 to 150°C for the primary part. The S16LC05-8 is classified as a steering (rail-to-rail) type TVS diode with automotive-grade qualification and is suitable for Ethernet and Telecom applications. Inventory availability is 3040 units. This part is appropriate for applications with lower transient energy requirements or where automotive-grade components are specified.

Frequently Asked Questions (FAQ)

Q: Can the CDNBS16-T05 be used as a direct replacement for the SM16LC05/TR13?

A: The CDNBS16-T05 shares the same reverse standoff voltage (5V), breakdown voltage (6V), and 16-SOIC package footprint. Both devices have 8 unidirectional channels and identical peak pulse power ratings (500W). The CDNBS16-T05 provides higher peak pulse current (42A versus 5A) and higher clamping voltage (24V versus 11V), making it suitable for applications requiring enhanced protection. The primary difference is RoHS compliance status: CDNBS16-T05 is ROHS3 compliant while SM16LC05/TR13 is non-compliant.

Q: What are the key differences between the S16LC05-8 and the SM16LC05/TR13?

A: Both parts share the same 5V reverse standoff voltage and 6V breakdown voltage. The S16LC05-8 differs in the following parameters: lower peak pulse current (1A versus 5A), lower clamping voltage (9.8V versus 11V), lower peak pulse power (300W versus 500W), and a reduced operating temperature maximum (-55 to 125°C versus -55 to 150°C). The S16LC05-8 is ROHS3 compliant, carries REACH restrictions, and is classified as automotive-grade with steering (rail-to-rail) topology. It is designed for Ethernet and Telecom applications.

Q: Are all three parts compatible with the same PCB footprint?

A: Yes. All three parts use the 16-SOIC package with 0.154" width (3.90mm). The mechanical footprint and pin configuration are identical, allowing direct PCB layout compatibility. Surface-mount assembly processes are equivalent across all three devices.

Q: Which substitute part should be selected for RoHS-compliant applications?

A: Both the CDNBS16-T05 and S16LC05-8 are ROHS3 compliant. The CDNBS16-T05 is recommended for applications requiring RoHS compliance with performance parameters matching or exceeding the SM16LC05/TR13. The S16LC05-8 is suitable for RoHS-compliant applications with lower transient energy requirements.

Q: What is the impact of capacitance differences between these parts?

A: The SM16LC05/TR13 and S16LC05-8 both have 25pF capacitance at 1MHz, while the CDNBS16-T05 has 15pF. Lower capacitance may reduce signal coupling effects in high-frequency circuits. The choice between these values depends on the specific application's frequency characteristics and signal integrity requirements.

Q: Can the S16LC05-8 be used in applications requiring the full -55 to 150°C temperature range?

A: No. The S16LC05-8 has a maximum operating temperature of 125°C (TJ), which is 25°C lower than the SM16LC05/TR13 and CDNBS16-T05. Applications requiring operation above 125°C must use either the SM16LC05/TR13 or CDNBS16-T05.

Q: What is the significance of the steering (rail-to-rail) topology in the S16LC05-8?

A: The S16LC05-8 is classified as a steering (rail-to-rail) type TVS diode, which differs from the Zener type used in the SM16LC05/TR13 and CDNBS16-T05. This topology is specifically designed for Ethernet and Telecom applications where rail-to-rail protection is required. The steering topology affects the device's response characteristics to transient events.

Q: Are there any REACH compliance considerations for these parts?

A: The SM16LC05/TR13 and CDNBS16-T05 are both REACH unaffected. The S16LC05-8 is REACH affected, which may impose additional documentation and compliance requirements depending on the application's regulatory jurisdiction and end-use classification.