SM16LC15CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SM16LC15CE3/TR13 is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This component features an 8-channel configuration in a 16-SOIC surface mount package with a 15V reverse standoff voltage and 30V maximum clamping voltage. The part is currently discontinued at DiGi Electronics, necessitating identification of equivalent alternatives that maintain electrical and mechanical compatibility for circuit protection requirements.

Substiute Parts

SM16LC15CE3/TR13

Microchip TechnologyIn Stock: 1170SM16LC15CE3/TR13 Datasheet

Current PartRFQ

SM1615C/TR13

Microchip TechnologyIn Stock: 2252SM1615C/TR13 Datasheet

DirectRFQ

SM16LC15/TR13

Microchip TechnologyIn Stock: 1424SM16LC15/TR13 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SM16LC15CE3/TR13 is determined by the following critical parameters:

Electrical Compatibility Requirements:

• Voltage - Reverse Standoff (Typ): 15V
• Voltage - Breakdown (Min): 16.7V
• Voltage - Clamping (Max) @ Ipp: 30V
• Current - Peak Pulse (8/20µs): 5A
• Operating Temperature Range: -55°C to 150°C (TJ)

Mechanical Compatibility Requirements:

• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Supplier Device Package: 16-SO

Channel Configuration: The main part features 8 bidirectional channels. Substitutes must maintain this channel count and directionality specification to ensure functional equivalence in circuit protection topology.

Two substitute parts meet these core electrical and mechanical criteria while maintaining active product status and availability.

Parameter Comparison

Engineering Selection Recommendations

SM1615C/TR13 Selection Criteria:

The SM1615C/TR13 is an active product with identical electrical specifications to the main part across all critical parameters: 15V reverse standoff, 16.7V breakdown voltage, 30V clamping voltage, and 5A peak pulse current. This part maintains 8 bidirectional channels and the same 16-SOIC package footprint. The primary distinction is higher capacitance (200pF versus 25pF at 1MHz), which may affect high-frequency circuit behavior. This part is supplied in Tape & Reel packaging with 2155 units in stock. RoHS non-compliance status requires verification against project requirements.

SM16LC15/TR13 Selection Criteria:

The SM16LC15/TR13 is an active product meeting all critical electrical parameters with identical 15V reverse standoff, 16.7V breakdown, 30V clamping, and 5A peak pulse specifications. This part offers enhanced peak pulse power rating (500W versus 300W), providing additional thermal margin in high-energy transient events. The 16-SOIC package and operating temperature range remain identical. This part is supplied in Cut Tape packaging with 1400 units in stock. Channel configuration is specified as unidirectional rather than bidirectional, which represents a functional difference requiring circuit topology verification. RoHS non-compliance status requires verification against project requirements.

Compliance Considerations:

The main part SM16LC15CE3/TR13 carries RoHS Compliant certification. Both substitute parts are RoHS non-compliant. Projects with RoHS compliance mandates must evaluate this distinction. All three parts maintain REACH Unaffected status and identical Moisture Sensitivity Level (MSL 1).

Frequently Asked Questions (FAQ)

Q: Can SM1615C/TR13 directly replace SM16LC15CE3/TR13 in all applications?

A: SM1615C/TR13 meets all critical electrical specifications (voltage, current, temperature range) and maintains identical package geometry and bidirectional channel configuration. The higher capacitance value (200pF versus 25pF) may alter circuit behavior in high-frequency applications. RoHS compliance status differs between parts.

Q: What is the functional difference between SM1615C/TR13 and SM16LC15/TR13?

A: Both parts share identical voltage ratings, current ratings, and package specifications. SM16LC15/TR13 provides higher peak pulse power (500W versus 300W). SM16LC15/TR13 is specified with unidirectional channels while SM1615C/TR13 maintains bidirectional configuration. Capacitance differs (25pF versus 200pF at 1MHz).

Q: Does channel directionality affect substitution compatibility?

A: Channel directionality (bidirectional versus unidirectional) determines circuit protection topology. The main part and SM1615C/TR13 are both bidirectional. SM16LC15/TR13 is unidirectional. Substitution requires verification that the application circuit topology accommodates the specified directionality.

Q: Are packaging format differences (Tape & Reel versus Cut Tape) significant for substitution?

A: Packaging format affects supply and handling but does not impact electrical or mechanical compatibility. SM1615C/TR13 is supplied in Tape & Reel format; SM16LC15/TR13 is supplied in Cut Tape format. Both are compatible with standard surface mount assembly processes.

Q: How does the capacitance difference between substitutes affect circuit performance?

A: SM1615C/TR13 exhibits 200pF capacitance at 1MHz compared to 25pF for both the main part and SM16LC15/TR13. Higher capacitance may increase parasitic coupling in high-frequency circuits and affect transient response characteristics. Circuit simulation or testing is appropriate for frequency-sensitive applications.

Q: What inventory considerations apply to these substitutes?

A: SM1615C/TR13 has 2155 units in stock. SM16LC15/TR13 has 1400 units in stock. The main part (SM16LC15CE3/TR13) is discontinued. Both substitutes provide adequate inventory for production requirements.

Q: Are there compliance implications for selecting between these substitutes?

A: The main part is RoHS Compliant; both substitutes are RoHS non-compliant. Projects subject to RoHS directives must evaluate this distinction. All three parts maintain REACH Unaffected status and identical MSL ratings.