SM16LC05CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SM16LC05CE3/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 an 11V maximum clamping voltage, 5A peak pulse current rating, and operates across an industrial temperature range of -55°C to 150°C. The device is RoHS3 compliant and carries an unlimited moisture sensitivity level (MSL 1), making it suitable for standard manufacturing environments. As an active product with established supply availability, equivalent and substitute parts are identified to support design flexibility, procurement alternatives, and inventory management.

Substiute Parts

SM16LC05CE3/TR13

Microchip TechnologyIn Stock: 3163SM16LC05CE3/TR13 Datasheet

Current PartRFQ

SM16LC05E3/TR13

Microchip TechnologyIn Stock: 1333SM16LC05E3/TR13 Datasheet

DirectRFQ

CDNBS16-T05

Bourns Inc.In Stock: 2602CDNBS16-T05 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SM16LC05CE3/TR13 are identified based on electrical and mechanical compatibility within the transient voltage suppressor category. The primary substitution criteria are:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 5V
• Voltage - Breakdown (Min): 6V
• Package / Case: 16-SOIC form factor
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C to 150°C
• Channel Configuration: 8 channels
• RoHS3 Compliance and MSL 1 rating

Substitution Logic:

The SM16LC05E3/TR13 (Microchip Technology) qualifies as a direct equivalent, maintaining identical voltage specifications, channel count, package geometry, and thermal operating range. This variant differs only in power dissipation capability (500W versus 300W) and channel directionality (unidirectional versus bidirectional), representing an enhanced performance option within the same product family.

The CDNBS16-T05 (Bourns Inc.) qualifies as a similar substitute based on matching reverse standoff voltage (5V), breakdown voltage (6V), package form factor (16-SOIC), channel count (8), and operating temperature range. This part exhibits higher clamping voltage (24V) and peak pulse current (42A), making it suitable for applications requiring greater transient energy absorption while maintaining the same protection threshold voltage.

Parameter Comparison

Engineering Selection Recommendations

SM16LC05E3/TR13 (Microchip Technology): This direct substitute maintains full electrical and mechanical compatibility with the SM16LC05CE3/TR13. Both devices share identical voltage thresholds, package dimensions, and thermal specifications. The SM16LC05E3/TR13 offers increased power dissipation (500W versus 300W), providing enhanced margin for transient energy absorption. Selection of this variant is appropriate when higher power handling is required within the same voltage protection class. Both parts carry active product status, RoHS3 compliance, and unlimited MSL rating.

CDNBS16-T05 (Bourns Inc.): This similar substitute maintains the critical voltage protection threshold (5V reverse standoff, 6V breakdown) and identical package form factor, enabling direct PCB layout compatibility. The CDNBS16-T05 exhibits higher clamping voltage (24V) and significantly greater peak pulse current capability (42A), positioning it for applications requiring robust transient suppression with higher energy absorption. This part is appropriate when circuit design permits higher clamping voltage or when greater transient current capacity is necessary. The CDNBS16-T05 carries active product status, RoHS3 compliance, and unlimited MSL rating.

Selection between these substitutes depends on application-specific transient energy requirements and circuit voltage tolerance specifications. All three parts maintain identical operating temperature ranges and compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can SM16LC05E3/TR13 be used as a direct replacement for SM16LC05CE3/TR13?

A: Yes. Both parts share identical voltage specifications (5V reverse standoff, 6V breakdown, 11V clamping), channel count (8), package geometry (16-SOIC), and operating temperature range (-55°C to 150°C). The SM16LC05E3/TR13 provides increased power dissipation (500W versus 300W), making it a compatible upgrade option.

Q: What are the key differences between SM16LC05CE3/TR13 and CDNBS16-T05?

A: Both parts maintain identical reverse standoff voltage (5V) and breakdown voltage (6V), ensuring equivalent protection threshold activation. The CDNBS16-T05 exhibits higher clamping voltage (24V versus 11V) and greater peak pulse current (42A versus 5A). These differences affect transient energy absorption capacity but do not alter the voltage level at which protection engages. Package form factor and operating temperature range remain identical.

Q: Are all three parts pin-compatible?

A: Yes. All three parts utilize the 16-SOIC package with identical 0.154" (3.90mm) width, enabling direct PCB layout compatibility without redesign.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. SM16LC05CE3/TR13, SM16LC05E3/TR13, and CDNBS16-T05 all carry RoHS3 compliance, MSL 1 (unlimited) rating, REACH unaffected status, and identical ECCN and HTSUS classifications.

Q: When should CDNBS16-T05 be selected over the Microchip variants?

A: The CDNBS16-T05 is appropriate when circuit design requires higher transient energy absorption (42A peak pulse versus 5A) or when application-specific voltage tolerance permits higher clamping voltage (24V versus 11V). Selection depends on transient event severity and circuit voltage margin specifications.

Q: What is the significance of bidirectional versus unidirectional channel configuration?

A: The SM16LC05CE3/TR13 features bidirectional channels, providing protection against transients in both polarities. The SM16LC05E3/TR13 and CDNBS16-T05 feature unidirectional channels. Application requirements determine which configuration is necessary. Bidirectional protection is required for circuits where transient polarity is unpredictable; unidirectional protection is sufficient for circuits with defined transient polarity.

Q: Are there inventory considerations when selecting substitutes?

A: Current inventory levels are provided for reference: SM16LC05CE3/TR13 (3085 pcs), SM16LC05E3/TR13 (1269 pcs), and CDNBS16-T05 (2500 pcs). Procurement decisions should account for project timeline and supply chain requirements.