3.0SMCJ14A-13 Equivalent & Substitute Parts

Part Overview

The 3.0SMCJ14A-13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Diodes Incorporated, designed for general-purpose overvoltage protection in surface-mount applications. This component features a 14V reverse standoff voltage with 23.2V maximum clamping voltage and 129.3A peak pulse current capability in a DO-214AB (SMC) package. The part is active in production status and ROHS3 compliant. Equivalent and substitute parts are identified to support design flexibility, supply chain alternatives, and application-specific performance requirements.

Substiute Parts

3.0SMCJ14A-13

Diodes IncorporatedIn Stock: 11143.0SMCJ14A-13 Datasheet

Current PartRFQ

SMDJ14A

Alpha & Omega Semiconductor Inc.In Stock: 10382SMDJ14A Datasheet

DirectRFQ

TPSMD14A

Littelfuse Inc.In Stock: 15722TPSMD14A Datasheet

DirectRFQ

3.0SMI14A

SMC Diode SolutionsIn Stock: 39023.0SMI14A Datasheet

MFR RecommendedRFQ

5.0SMDJ14A

MDE Semiconductor IncIn Stock: 46235.0SMDJ14A Datasheet

MFR RecommendedRFQ

SMCJ14A

MeritekIn Stock: 20368SMCJ14A Datasheet

MFR RecommendedRFQ

SMCJ14A

MeritekIn Stock: 20368SMCJ14A Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3.0SMCJ14A-13 is determined by the following critical parameters:

• Voltage - Reverse Standoff: 14V (exact match required)
• Voltage - Clamping (Max) @ Ipp: 23.2V (exact match required)
• Voltage - Breakdown (Min): 15.6V (exact match required)
• Package / Case: DO-214AB or SMC (mechanical and electrical compatibility)
• Type: Zener, Unidirectional (functional equivalence)
• RoHS Status: ROHS3 Compliant (regulatory requirement)

Substitute parts are grouped into two categories based on peak pulse current and power dissipation capacity:

Category A - Direct Electrical Equivalents (129.3A / 3000W): Parts with identical voltage specifications and peak pulse current within the same power class, suitable for direct replacement in applications requiring 3kW peak pulse power.

Category B - Higher Performance Alternatives (216A / 5000W): Parts with identical voltage specifications but elevated peak pulse current and power dissipation, suitable for applications requiring enhanced transient protection margin.

Category C - Lower Performance Alternatives (64.66A / 1500W): Parts with identical voltage specifications but reduced peak pulse current and power dissipation, suitable for applications with lower transient energy requirements.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Category A): SMDJ14A, TPSMD14A, and 3.0SMI14A are electrically and mechanically equivalent to the 3.0SMCJ14A-13 with identical voltage specifications and peak pulse current ratings. TPSMD14A includes automotive-grade qualification (AEC-Q101) and extended lower temperature rating (-65°C), suitable for automotive and industrial applications. SMDJ14A and 3.0SMI14A maintain standard industrial specifications. All three are ROHS3 compliant and available in high inventory quantities.

For Enhanced Protection (Category B): 5.0SMDJ14A provides identical voltage specifications with 67% higher peak pulse current (216A) and 67% higher power dissipation (5000W), suitable for applications requiring additional transient energy margin or higher fault current environments. Voltage clamping characteristics remain identical, ensuring circuit protection thresholds are maintained.

For Cost-Optimized Applications (Category C): SMCJ14A (Meritek) maintains identical voltage specifications with reduced peak pulse current (64.66A) and power dissipation (1500W), suitable for applications with lower transient energy requirements or cost-sensitive designs where full 3kW capability is not required.

Compliance Considerations: All substitute parts maintain ROHS3 compliance. TPSMD14A includes AEC-Q101 automotive qualification for regulated automotive applications. Selection should account for operating temperature requirements: the 3.0SMCJ14A-13 supports -55 to 175°C, while most substitutes are rated -55 to 150°C or -65 to 150°C.

Frequently Asked Questions (FAQ)

Q: Can SMDJ14A be used as a direct replacement for 3.0SMCJ14A-13? A: Yes. SMDJ14A meets all critical electrical parameters: 14V reverse standoff, 15.6V breakdown minimum, 23.2V clamping maximum, and 129.4A peak pulse current. Both use DO-214AB (SMC) packaging. The primary difference is operating temperature range: SMDJ14A is rated -55 to 150°C versus 3.0SMCJ14A-13 at -55 to 175°C. Verify application temperature requirements before substitution.

Q: What is the difference between 5.0SMDJ14A and 3.0SMCJ14A-13? A: Both maintain identical voltage specifications (14V standoff, 23.2V clamping). The 5.0SMDJ14A provides higher peak pulse current (216A versus 129.3A) and power dissipation (5000W versus 3000W). Use 5.0SMDJ14A when applications require enhanced transient protection or operate in high-fault-current environments. Voltage protection thresholds remain identical.

Q: Is TPSMD14A suitable for automotive applications? A: Yes. TPSMD14A is qualified to AEC-Q101 automotive standard and rated -65 to 150°C, making it suitable for automotive and industrial applications. It maintains identical electrical specifications to 3.0SMCJ14A-13 with extended lower temperature capability.

Q: Can SMCJ14A (Meritek) replace 3.0SMCJ14A-13 in all applications? A: SMCJ14A matches voltage specifications but provides only 64.66A peak pulse current and 1500W power dissipation versus 129.3A and 3000W for the original part. Use SMCJ14A only in applications confirmed to require ≤1500W peak pulse power. Verify transient energy requirements before substitution.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant, meeting regulatory requirements for restricted substance use.

Q: What package compatibility exists between substitute parts? A: All substitute parts use DO-214AB (SMC) packaging, ensuring mechanical and thermal compatibility with the 3.0SMCJ14A-13 footprint. No PCB layout modifications are required for package-compatible substitutions.