SMBJ15CD-M3/I Equivalent & Substitute Parts

Part Overview

The SMBJ15CD-M3/I is a bidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the DO-214AA (SMB) package and provides transient overvoltage protection for general-purpose applications. The device is classified as Active product status and is fully RoHS3 compliant. Equivalent and substitute parts are identified when they maintain identical or compatible electrical specifications across reverse standoff voltage, clamping voltage, peak pulse current, and power dissipation ratings, while preserving the same package form factor and operating temperature range.

Substiute Parts

SMBJ15CD-M3/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 4194SMBJ15CD-M3/I Datasheet

Current PartRFQ

SMBJ15CA-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 3518SMBJ15CA-E3/5B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ15CD-M3/I are qualified based on the following criteria:

Electrical Compatibility Parameters:

• Reverse standoff voltage of 15V (Typ)
• Breakdown voltage minimum of 16.7V or higher
• Clamping voltage maximum within 24.4V
• Peak pulse current rating of 24.6A or higher
• Peak pulse power rating of 600W
• Operating temperature range of -55°C to 150°C (TJ)

Mechanical & Packaging Compatibility:

• Surface mount configuration
• DO-214AA (SMB) package form factor
• Bidirectional channel configuration (1 channel)
• Tape & Reel (TR) packaging format

Compliance & Status:

• Active product status
• RoHS3 compliant
• Moisture Sensitivity Level (MSL) 1 (Unlimited)
• REACH Unaffected classification

The substitute part SMBJ15CA-E3/5B meets all electrical and mechanical requirements for direct substitution with the SMBJ15CD-M3/I.

Parameter Comparison

Engineering Selection Recommendations

The SMBJ15CA-E3/5B is qualified as a direct substitute for the SMBJ15CD-M3/I based on electrical parameter compatibility and identical mechanical packaging. Both components are manufactured by Vishay General Semiconductor - Diodes Division within the TransZorb® series and maintain Active product status. Both parts are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity classification and REACH Unaffected status. The substitute part exhibits clamping voltage and peak pulse current specifications within acceptable tolerance ranges for general-purpose transient voltage suppression applications. Selection between these parts may be determined by inventory availability, lead time, or supplier preference, as electrical and mechanical performance characteristics are equivalent.

Frequently Asked Questions (FAQ)

Q: Can SMBJ15CA-E3/5B be used as a direct replacement for SMBJ15CD-M3/I?

A: Yes. Both components share identical reverse standoff voltage (15V), operating temperature range (-55°C to 150°C), package form factor (DO-214AA, SMB), and power rating (600W). The clamping voltage and peak pulse current specifications of the substitute part fall within compatible ranges for the application.

Q: Are there differences in the clamping voltage between these parts?

A: The SMBJ15CD-M3/I specifies a maximum clamping voltage of 24V, while the SMBJ15CA-E3/5B specifies 24.4V. This 0.4V difference is within acceptable tolerance for general-purpose TVS diode applications and does not affect functional compatibility.

Q: Do both parts have the same package and mounting requirements?

A: Yes. Both the SMBJ15CD-M3/I and SMBJ15CA-E3/5B use the DO-214AA (SMB) surface mount package with identical footprint and soldering requirements. No PCB layout modifications are necessary for substitution.

Q: What compliance certifications apply to both parts?

A: Both components are RoHS3 compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity classification. Both maintain Active product status from the manufacturer.

Q: Is there a difference in peak pulse current rating?

A: The SMBJ15CD-M3/I is rated for 25A peak pulse current, while the SMBJ15CA-E3/5B is rated for 24.6A. This 0.4A difference is negligible for general-purpose protection applications and maintains functional equivalence.