SM16LC15/TR13 Equivalent & Substitute Parts

Part Overview

The SM16LC15/TR13 is an active Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This unidirectional 8-channel Zener-type TVS diode operates with a 15V reverse standoff voltage and provides 30V maximum clamping voltage at peak pulse current. The device is supplied in 16-SOIC surface mount packaging and is available in Cut Tape (CT) format with 1400 pieces in current inventory.

Equivalent and substitute parts are identified to address packaging format availability, inventory requirements, and application-specific performance variations while maintaining core electrical compatibility within the TVS diode category.

Substiute Parts

SM16LC15/TR13

Microchip TechnologyIn Stock: 1424SM16LC15/TR13 Datasheet

Current PartRFQ

SM1615/TR13

Microchip TechnologyIn Stock: 3192SM1615/TR13 Datasheet

DirectRFQ

S16LC15-8

SMC Diode SolutionsIn Stock: 3230S16LC15-8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SM16LC15/TR13 are classified based on the following substitution criteria:

Direct Equivalent (Packaging Format Variant): The SM1615/TR13 maintains identical electrical specifications including 15V reverse standoff voltage, 16.7V minimum breakdown voltage, and 30V maximum clamping voltage. The primary distinction is packaging format: SM1615/TR13 is supplied in Tape & Reel (TR) format rather than Cut Tape (CT). Both parts share the same 16-SOIC package geometry and surface mount mounting type. This substitution is valid for high-volume production environments where Tape & Reel packaging is standard.

Similar Equivalent (Performance Variant): The S16LC15-8 manufactured by SMC Diode Solutions provides comparable core functionality within the TVS diode category. This part maintains the 15V reverse standoff voltage and 16.7V minimum breakdown voltage. However, the maximum clamping voltage is specified at 24V (versus 30V for the main part), and peak pulse current is rated at 1A (versus 5A). The S16LC15-8 is classified as a Steering (Rail to Rail) type TVS diode with automotive-grade qualification and includes power line protection capability. Operating temperature range is -55°C to 125°C. This substitution is applicable in applications where lower clamping voltage and reduced peak pulse current requirements are acceptable.

Parameter Comparison

Engineering Selection Recommendations

SM1615/TR13 Selection Criteria: The SM1615/TR13 is the direct electrical equivalent of the SM16LC15/TR13 and is recommended as the primary substitute when Tape & Reel packaging is required for automated assembly processes. Both parts are manufactured by Microchip Technology, maintain identical voltage specifications (15V standoff, 30V clamping), and support the same 5A peak pulse current rating. The SM1615/TR13 is currently in active production status with higher inventory availability (3133 pieces). Both parts share identical RoHS non-compliance status and REACH unaffected classification. Selection of SM1615/TR13 is appropriate for applications requiring high-volume production with standard reel-based component handling.

S16LC15-8 Selection Criteria: The S16LC15-8 is classified as a similar equivalent and is applicable in applications where the reduced performance specifications are acceptable. This part is suitable for designs with lower peak pulse current requirements (1A versus 5A) and lower maximum clamping voltage (24V versus 30V). The S16LC15-8 offers ROHS3 compliance and automotive-grade qualification, making it appropriate for regulated environments and automotive applications. The operating temperature range is limited to -55°C to 125°C compared to 150°C for the main part. Selection of S16LC15-8 is appropriate when compliance certifications and automotive qualification are design requirements and application current/voltage specifications permit the reduced ratings.

Frequently Asked Questions (FAQ)

Q: Can SM1615/TR13 be used as a direct replacement for SM16LC15/TR13?

A: Yes. The SM1615/TR13 is a direct electrical equivalent with identical voltage specifications, current ratings, and thermal operating range. The only difference is packaging format: SM1615/TR13 is supplied in Tape & Reel (TR) format while SM16LC15/TR13 is supplied in Cut Tape (CT) format. Both use the same 16-SOIC package geometry and are suitable for surface mount assembly.

Q: What are the key differences between SM16LC15/TR13 and S16LC15-8?

A: The S16LC15-8 differs in three primary specifications: (1) Maximum clamping voltage is 24V versus 30V, (2) Peak pulse current is 1A versus 5A, and (3) Operating temperature maximum is 125°C versus 150°C. The S16LC15-8 offers ROHS3 compliance and automotive-grade qualification. Selection depends on whether the application requirements permit these reduced specifications.

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

A: Yes. All three parts use the 16-SOIC package with 0.154" (3.90mm) width and are surface mount devices. PCB footprints are identical and interchangeable.

Q: What is the significance of the packaging format difference between Cut Tape and Tape & Reel?

A: Cut Tape (CT) format is used for manual component handling and lower-volume assembly processes. Tape & Reel (TR) format is used for automated pick-and-place assembly equipment in high-volume production. The electrical performance is identical; the choice depends on assembly process requirements.

Q: Does the higher capacitance value of SM1615/TR13 (400pF versus 25pF) affect substitution suitability?

A: Capacitance differences may affect high-frequency circuit behavior and signal integrity in sensitive applications. While both parts are electrically equivalent for TVS protection function, the capacitance specification should be verified against circuit design requirements before substitution.

Q: Which substitute part should be selected for new designs?

A: Selection depends on specific design requirements. For general-purpose applications requiring direct electrical equivalence, SM1615/TR13 is appropriate. For applications requiring compliance certifications or automotive qualification, S16LC15-8 is appropriate if the reduced voltage and current specifications are acceptable.