SMBJ26CD-M3/I Equivalent & Substitute Parts

Part Overview

The SMBJ26CD-M3/I is a bidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for general-purpose transient protection applications. This Surface Mount device operates across a temperature range of -55°C to 150°C and is housed in a DO-214AA (SMB) package. The part is currently Active in product status and maintains full RoHS3 compliance with MSL Level 1 rating. Equivalent and substitute parts are identified based on matching electrical parameters, package specifications, and operational characteristics to ensure direct functional interchangeability in circuit designs.

Substiute Parts

SMBJ26CD-M3/I

Vishay General Semiconductor - Diodes DivisionIn Stock: 1039SMBJ26CD-M3/I Datasheet

Current PartRFQ

SMBJ26CA-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 3448SMBJ26CA-E3/5B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBJ26CD-M3/I is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 26V
• Voltage - Breakdown (Min): within specified range
• Voltage - Clamping (Max) @ Ipp: within acceptable tolerance
• Current - Peak Pulse (10/1000µs): 14.3A to 14.5A
• Power - Peak Pulse: 600W
• Package / Case: DO-214AA, SMB
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Type: Zener
• Operating Temperature Range: -55°C to 150°C (TJ)

The substitute part SMBJ26CA-E3/5B meets all these criteria and is classified as a manufacturer-recommended equivalent. Both parts share the same base product number (SMBJ26) and are manufactured by the same supplier, ensuring design compatibility and functional interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Both the SMBJ26CD-M3/I and SMBJ26CA-E3/5B are Active products manufactured by Vishay General Semiconductor - Diodes Division. Both parts maintain full RoHS3 compliance and carry MSL Level 1 ratings, indicating no moisture sensitivity restrictions. The SMBJ26CA-E3/5B is designated as the manufacturer-recommended substitute and demonstrates electrical parameters within acceptable engineering tolerances for direct circuit substitution. Selection between these parts may be based on inventory availability, packaging format (Tape & Reel), or supply chain considerations, as both are functionally equivalent for general-purpose transient voltage suppression applications.

Frequently Asked Questions (FAQ)

Q: Can SMBJ26CA-E3/5B be used as a direct replacement for SMBJ26CD-M3/I?

A: Yes. Both parts are bidirectional Zener TVS diodes with identical reverse standoff voltage (26V), matching power dissipation (600W), and compatible operating temperature ranges (-55°C to 150°C). Peak pulse current specifications differ by 0.2A (14.5A vs. 14.3A), which falls within acceptable substitution tolerance. Both use the same DO-214AA (SMB) Surface Mount package.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are RoHS3 compliant, carry REACH Unaffected status, and maintain MSL Level 1 ratings. Regulatory and environmental compliance is equivalent.

Q: What is the significance of the base product number SMBJ26?

A: The base product number SMBJ26 indicates the core device specification: a 26V nominal Zener TVS diode in the SMBJ series. Variations in the full part number (such as CD-M3/I versus CA-E3/5B) typically reflect manufacturing date codes, packaging formats, or supplier-specific designations, but do not alter the fundamental electrical characteristics.

Q: Are packaging and mounting specifications identical?

A: Yes. Both parts are Surface Mount devices in DO-214AA (SMB) package format and are supplied in Tape & Reel (TR) configuration, ensuring compatibility with standard PCB assembly processes.

Q: What parameters should be verified when substituting these parts in a design?

A: Verify that the circuit design accommodates the voltage clamping range (41.6V to 42.1V), peak pulse current capability (14.3A to 14.5A), and operating temperature requirements (-55°C to 150°C). Both parts meet these specifications and are suitable for general-purpose transient protection applications.