SMBJ14CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ14CE3/TR13 is a bidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This surface-mount component operates in the 14V reverse standoff voltage class and features a 600W peak pulse power rating. The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support alternative sourcing strategies while maintaining electrical and mechanical compatibility within the specified parameter ranges.

Substiute Parts

SMBJ14CE3/TR13

Microchip TechnologyIn Stock: 1137SMBJ14CE3/TR13 Datasheet

Current PartRFQ

SMBJ14CA

MDDIn Stock: 30204SMBJ14CA Datasheet

SimilarRFQ

SMBJ14CA

MDDIn Stock: 30204SMBJ14CA Datasheet

SimilarRFQ

SMBJ14CA

MDDIn Stock: 30204SMBJ14CA Datasheet

SimilarRFQ

SMBJ14CA-13-F

Diodes IncorporatedIn Stock: 1267SMBJ14CA-13-F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ14CE3/TR13 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Voltage - Reverse Standoff (Typ): 14V
• Voltage - Breakdown (Min): 15.6V
• Bidirectional Channels: 1
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Power - Peak Pulse: 600W
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Voltage - Clamping (Max) @ Ipp: 23.2V to 25.8V
• Current - Peak Pulse (10/1000µs): 23.3A to 25.9A
• Operating Temperature Range: -65°C to -50°C minimum; 150°C maximum

Substitute parts maintain identical reverse standoff voltage, breakdown voltage, package configuration, and power rating. Variations in clamping voltage and peak pulse current remain within the operational envelope for general-purpose TVS applications. All substitute parts retain active product status and full compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain active product status and full RoHS3 compliance with unlimited moisture sensitivity level (MSL 1), ensuring compatibility with standard manufacturing and storage protocols.

SMBJ14CA (MDD): This substitute provides equivalent electrical performance with a lower clamping voltage (23.2V versus 25.8V) and higher peak pulse current capability (25.9A versus 23.3A). The operating temperature range extends to -50°C minimum, which is acceptable for most general-purpose applications. This part is available in high inventory volume (30,100 units).

SMBJ14CA-13-F (Diodes Incorporated): This substitute offers clamping voltage of 23.2V and peak pulse current of 25.8A, closely matching the original specification. The operating temperature range extends to -55°C minimum, providing broader low-temperature coverage than the MDD alternative. This part is supplied in Tape & Reel packaging and maintains the SMBJ series designation. Inventory availability is 1,174 units.

Both substitutes maintain the critical 14V reverse standoff voltage, 15.6V minimum breakdown voltage, 600W peak pulse power rating, and DO-214AA/SMB package configuration. Selection between substitutes depends on inventory availability, temperature range requirements, and supply chain preferences.

Frequently Asked Questions (FAQ)

Q: Can SMBJ14CA (MDD) be used as a direct replacement for SMBJ14CE3/TR13?

A: Yes. Both parts share identical reverse standoff voltage (14V), breakdown voltage (15.6V), package configuration (DO-214AA/SMB), and power rating (600W). The SMBJ14CA features a lower clamping voltage (23.2V) and higher peak pulse current (25.9A), which are within acceptable operational parameters for general-purpose TVS applications. The operating temperature minimum of -50°C is suitable for standard industrial and commercial applications.

Q: What is the difference between SMBJ14CA and SMBJ14CA-13-F?

A: Both parts are manufactured by different suppliers (MDD and Diodes Incorporated, respectively) and share identical electrical specifications: 14V reverse standoff, 15.6V breakdown, 23.2V clamping voltage, and 600W peak pulse power. The primary differences are manufacturer identity, operating temperature range (-50°C minimum for MDD versus -55°C minimum for Diodes Incorporated), and packaging format (standard versus Tape & Reel). The SMBJ14CA-13-F provides extended low-temperature performance.

Q: Are all substitute parts available in the same packaging format?

A: The SMBJ14CE3/TR13 is supplied in Tape & Reel (TR) format. The SMBJ14CA (MDD) packaging format is not specified in the available data. The SMBJ14CA-13-F is explicitly supplied in Tape & Reel packaging. Confirm packaging requirements with the supplier before procurement.

Q: Do all parts meet the same compliance standards?

A: Yes. The SMBJ14CE3/TR13, SMBJ14CA, and SMBJ14CA-13-F are all RoHS3 compliant with REACH Unaffected status and EAR99 export classification. All parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements.

Q: What is the significance of the clamping voltage difference between the main part and substitutes?

A: The SMBJ14CE3/TR13 has a maximum clamping voltage of 25.8V, while both substitute parts (SMBJ14CA and SMBJ14CA-13-F) have a maximum clamping voltage of 23.2V. Lower clamping voltage provides tighter voltage regulation during transient suppression events. Both values are within the acceptable range for 14V reverse standoff TVS diodes and are suitable for general-purpose protection circuits.

Q: Can these parts be used interchangeably in existing PCB designs?

A: Yes. All parts use the identical DO-214AA/SMB package footprint and surface-mount configuration. No PCB layout modifications are required for substitution. Electrical performance differences are within acceptable tolerances for general-purpose transient voltage suppression applications.