SMBJ24CE3/TR13 Equivalent & Substitute Parts

Part Overview

The SMBJ24CE3/TR13 is a Transient Voltage Suppressor (TVS) diode manufactured by Microchip Technology, rated at 24V reverse standoff voltage with 43V clamping voltage and 14A peak pulse current. This bidirectional surface-mount component operates across -65°C to 150°C and is packaged in DO-214AA (SMB) format on Tape & Reel. The part is Active and ROHS3 Compliant. Equivalent and substitute parts are necessary when specific part availability is limited, inventory constraints exist, or alternative sourcing strategies are required while maintaining electrical and mechanical compatibility.

Substiute Parts

SMBJ24CE3/TR13

Microchip TechnologyIn Stock: 711SMBJ24CE3/TR13 Datasheet

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SMBJ24CA

MDDIn Stock: 210159SMBJ24CA Datasheet

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SMBJ24CA

MDDIn Stock: 210159SMBJ24CA Datasheet

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SMBJ24CA

MDDIn Stock: 210159SMBJ24CA Datasheet

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SMBJ24CA

MDDIn Stock: 210159SMBJ24CA Datasheet

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SMBJ24CA-13-F

Diodes IncorporatedIn Stock: 24247SMBJ24CA-13-F Datasheet

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SMBJ24CA-TP

Micro Commercial CoIn Stock: 90120SMBJ24CA-TP Datasheet

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SMBJ24CA-TR

STMicroelectronicsIn Stock: 30235SMBJ24CA-TR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts are grouped into two categories based on the allowed electrical and mechanical parameters:

Category 1: Direct Substitutes (Clamping Voltage 38.9V) The SMBJ24CA variants from multiple manufacturers (MDD, Diodes Incorporated, Micro Commercial Co, and STMicroelectronics) meet the 24V reverse standoff and 26.7V minimum breakdown specifications. These parts share the same base product number (SMBJ24) and DO-214AA/SMB package. The clamping voltage of 38.9V is lower than the original 43V specification but remains within the same electrical class for this product category. Peak pulse current ratings range from 15.4A to 16A, which exceeds the original 14A specification, providing improved pulse handling capability.

Selection Criteria:

• Voltage - Reverse Standoff: 24V (identical)
• Voltage - Breakdown (Min): 26.7V (identical)
• Package / Case: DO-214AA, SMB (identical)
• Mounting Type: Surface Mount (identical)
• Power - Peak Pulse: 600W (identical)
• RoHS Status: ROHS3 Compliant (identical)
• Moisture Sensitivity Level: 1 (Unlimited) (identical)

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are Active products with ROHS3 compliance and MSL 1 (Unlimited) rating, matching the original SMBJ24CE3/TR13. The substitutes maintain identical reverse standoff (24V) and minimum breakdown voltage (26.7V) specifications, ensuring circuit protection thresholds remain consistent.

The primary difference is the clamping voltage: substitute parts specify 38.9V compared to the original 43V maximum. All substitute parts exceed the original 14A peak pulse specification (ranging from 15.4A to 16A), providing enhanced current handling within the same 600W power dissipation envelope.

Temperature operating ranges vary slightly among substitutes. The SMBJ24CA-TP variant extends to 175°C maximum junction temperature, providing the widest thermal operating window. The MDD SMBJ24CA variant has a more limited lower operating temperature of -50°C compared to the original -65°C.

Selection among these substitutes should be based on specific application requirements regarding operating temperature range, supply chain availability, and packaging preferences (Tape & Reel or Cut Tape & Digi-Reel).

Frequently Asked Questions (FAQ)

Q: Can SMBJ24CA variants be used as direct replacements for SMBJ24CE3/TR13? A: Yes, SMBJ24CA variants from multiple manufacturers (MDD, Diodes Incorporated, Micro Commercial Co, STMicroelectronics) meet the critical electrical specifications including 24V reverse standoff voltage, 26.7V minimum breakdown voltage, and DO-214AA/SMB package compatibility. All parts share the same base product number (SMBJ24) classification.

Q: What is the significance of the 38.9V clamping voltage versus 43V in the original? A: Both values fall within the acceptable clamping voltage range for the SMBJ24 classification. The 38.9V specification of substitute parts provides effective transient suppression at the same 24V standoff level. Design margins should account for this difference if the circuit requires the maximum 43V clamping performance.

Q: Are there temperature operating range differences I should consider? A: Yes. The original SMBJ24CE3/TR13 operates from -65°C to 150°C. Most substitutes operate from -55°C to 150°C (or 175°C for the SMBJ24CA-TP variant). If your application requires operation below -55°C, verify the substitute part specifications or consider the temperature-extended SMBJ24CA-TP option.

Q: Do all substitute parts have identical packaging options? A: All substitute parts use the same DO-214AA (SMB) case package. Packaging options (Tape & Reel, Cut Tape & Digi-Reel) vary by manufacturer and part variant, supporting flexible sourcing and assembly requirements.

Q: What compliance certifications should I verify before substitution? A: All listed parts maintain ROHS3 compliance, MSL 1 (Unlimited) rating, and REACH Unaffected status, matching the original part's environmental and regulatory compliance profile. Verify your specific application requirements against these certifications.

Q: Can I interchange SMBJ24CA variants from different manufacturers? A: Yes, all listed SMBJ24CA variants meet identical electrical and mechanical specifications for 24V standoff, 26.7V breakdown, and DO-214AA packaging. Manufacturer differences are supported by individual datasheets and qualified supply chains, but electrical interchangeability within the SMBJ24CA classification is maintained.