SMBJ24CD-M3/I Equivalent & Substitute Parts

Part Overview

The SMBJ24CD-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 part is currently active in production with full inventory availability. Equivalent and substitute parts are identified to support procurement flexibility, supply chain continuity, and design optimization when the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

SMBJ24CD-M3/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 2024SMBJ24CD-M3/I Datasheet

Current PartRFQ

SMBJ24CA-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 5400SMBJ24CA-E3/5B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBJ24CD-M3/I are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Reverse Standoff Voltage: 24V (nominal)
• Package / Case: DO-214AA, SMB (surface mount)
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Series: TransZorb®
• Type: Zener

Allowable Variation Parameters:

• Voltage - Breakdown (Min): 26.7V to 27.1V range
• Voltage - Clamping (Max) @ Ipp: 38.4V to 38.9V range
• Current - Peak Pulse (10/1000µs): 15.4A to 15.6A range
• Power - Peak Pulse: 600W (fixed)

The SMBJ24CA-E3/5B meets all critical matching parameters and operates within the allowable variation ranges for electrical performance. Both parts share identical RoHS3 compliance, MSL rating, and operating temperature specifications, confirming functional equivalence for general-purpose transient voltage suppression applications.

Parameter Comparison

Engineering Selection Recommendations

Both the SMBJ24CD-M3/I and SMBJ24CA-E3/5B are active products manufactured by Vishay General Semiconductor - Diodes Division. Both parts carry ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), confirming suitability for standard manufacturing and storage conditions.

The SMBJ24CA-E3/5B operates within the specified electrical parameter ranges and maintains identical package, mounting, and thermal specifications. Selection between these parts may be based on inventory availability, lead time requirements, or procurement cost optimization, as both deliver equivalent functional performance for general-purpose transient voltage suppression.

Frequently Asked Questions (FAQ)

Q: Can the SMBJ24CA-E3/5B be used as a direct replacement for the SMBJ24CD-M3/I?

A: Yes. Both parts share identical reverse standoff voltage (24V), package type (DO-214AA, SMB), mounting configuration (surface mount), and operating temperature range (-55°C ~ 150°C). Electrical parameters fall within acceptable variation ranges for TVS diode applications.

Q: What are the key differences between these two parts?

A: The SMBJ24CA-E3/5B exhibits a slightly lower breakdown voltage minimum (26.7V vs. 27.1V) and marginally higher clamping voltage (38.9V vs. 38.4V). Peak pulse current is 15.4A compared to 15.6A. These variations remain within standard TVS diode tolerance specifications and do not affect functional equivalence.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, carry MSL 1 (unlimited) moisture sensitivity rating, and maintain active product status with the same manufacturer.

Q: Can these parts be used interchangeably on the same PCB without design modification?

A: Yes. Both parts use the DO-214AA (SMB) surface mount package with identical pinout and footprint requirements. No PCB layout or design changes are necessary for substitution.

Q: What should be considered when selecting between these parts?

A: Selection criteria include procurement lead time, inventory availability, cost per unit, and supplier preference. From an engineering standpoint, both parts deliver equivalent transient voltage suppression performance for general-purpose applications.