SMBJ11CD-M3/H Equivalent & Substitute Parts

Part Overview

The SMBJ11CD-M3/H is a Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division, part of the TransZorb® series. This surface mount component operates as a bidirectional Zener diode in the DO-214AA (SMB) package, designed for general-purpose transient voltage suppression applications. The part is currently Active in product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical performance parameters and identical mechanical packaging to ensure direct interchangeability in circuit designs.

Substiute Parts

SMBJ11CD-M3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 1066SMBJ11CD-M3/H Datasheet

Current PartRFQ

SMBJ11CA-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 22725SMBJ11CA-E3/52 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of TVS diodes is determined by equivalence in the following critical parameters:

• Reverse Standoff Voltage (Vwm): Must match at 11V nominal
• Breakdown Voltage (Vbr): Must fall within acceptable tolerance range
• Clamping Voltage (Vc) @ Ipp: Must remain within circuit protection requirements
• Peak Pulse Current (Ipp): Must meet or exceed application demands
• Peak Pulse Power: Must support transient energy dissipation
• Package and Mounting Type: Must be identical (DO-214AA, SMB, Surface Mount)
• Thermal Operating Range: Must cover application environment
• Compliance Status: Must maintain RoHS3 and REACH requirements

The SMBJ11CA-E3/52 is identified as a manufacturer-recommended substitute based on matching all critical electrical and mechanical parameters within acceptable engineering tolerances for the SMBJ11 base product family.

Parameter Comparison

Engineering Selection Recommendations

Both SMBJ11CD-M3/H and SMBJ11CA-E3/52 are Active product status components manufactured by Vishay General Semiconductor - Diodes Division. Both parts maintain full RoHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component procurement. The SMBJ11CA-E3/52 is designated as the manufacturer-recommended substitute with significantly higher inventory availability (22,650 pcs vs. 1,021 pcs), making it the preferred selection for new designs and high-volume production requirements. Both components are supplied in Tape & Reel packaging suitable for automated assembly processes. Selection between these parts should be based on inventory availability, lead time requirements, and procurement cost considerations, as electrical and mechanical performance are equivalent within specified tolerances.

Frequently Asked Questions (FAQ)

Q: Can SMBJ11CA-E3/52 be used as a direct replacement for SMBJ11CD-M3/H?

A: Yes. Both parts share identical reverse standoff voltage (11V), package type (DO-214AA, SMB), mounting configuration (Surface Mount), and thermal operating range (-55 to 150°C). Clamping voltage and peak pulse current specifications are within acceptable engineering tolerances for TVS diode applications.

Q: What is the significance of the different part number suffixes (-M3/H vs. -E3/52)?

A: The suffixes indicate different manufacturing batches, tape configurations, or supplier-specific packaging designations from Vishay. The core electrical specifications and package type remain identical. Both are valid part numbers for the SMBJ11 base product family.

Q: Are there any thermal or environmental differences between these parts?

A: No. Both components operate across the identical temperature range of -55°C to 150°C (TJ) and maintain the same moisture sensitivity level (MSL 1 - Unlimited). Environmental performance is equivalent.

Q: What are the key parameters that determine TVS diode substitutability?

A: Reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current rating, package type, and mounting configuration are the primary determinants. All must match or fall within acceptable tolerances. Compliance certifications (RoHS, REACH) must also be maintained.

Q: Is the DO-214AA package interchangeable with other SMB variants?

A: The DO-214AA and SMB designations refer to the same physical package. Both SMBJ11CD-M3/H and SMBJ11CA-E3/52 use this identical package, ensuring mechanical and electrical interchangeability on PCB layouts designed for SMB surface mount components.