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SMCJ5.0A-13 Equivalent & Substitute Parts
Part Overview
The SMCJ5.0A-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 5V reverse standoff voltage with a 9.2V maximum clamping voltage and 163A peak pulse current capability in a DO-214AB (SMC) package. The part is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active manufacturers to maintain design continuity and ensure supply chain availability.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Type | Zener TVS Diode | — |
| Unidirectional Channels | 1 | — |
| Voltage - Reverse Standoff (Typ) | 5 | V |
| Voltage - Breakdown (Min) | 6.4 | V |
| Voltage - Clamping (Max) @ Ipp | 9.2 | V |
| Current - Peak Pulse (10/1000µs) | 163 | A |
| Power - Peak Pulse | 1500 | W |
| Operating Temperature Range | -55 to 150 | °C (TJ) |
| Mounting Type | Surface Mount | — |
| Package / Case | DO-214AB, SMC | — |
| Applications | General Purpose | — |
Substitute Part Grouping Explanation
Substitution of the SMCJ5.0A-13 is determined by strict equivalence across the following critical parameters:
- Voltage Rating: Reverse standoff voltage of 5V, breakdown minimum of 6.4V, and clamping voltage maximum of 9.2V
- Current Handling: Peak pulse current of 163A at 10/1000µs pulse duration
- Power Dissipation: Peak pulse power of 1500W
- Package: DO-214AB (SMC) surface-mount configuration
- Unidirectionality: Single-channel zener TVS diode topology
Substitute parts are grouped into two categories:
Category A - Direct Electrical & Mechanical Equivalents (163A @ 9.2V Clamp) Parts meeting all electrical specifications with identical 163A peak pulse current and 9.2V clamping voltage, maintaining full pin-for-pin and functional compatibility.
Category B - Higher Performance Alternatives (Enhanced Current/Power Ratings) Parts with identical voltage ratings but higher peak pulse current (326A) and power dissipation (3000W) capabilities, providing superior transient protection margin while maintaining the same voltage protection envelope and package footprint.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Product Status | Voltage - Reverse Standoff (V) | Voltage - Clamping (Max) @ Ipp (V) | Current - Peak Pulse (A) | Power - Peak Pulse (W) | Operating Temp (°C) | RoHS Status | Packaging |
|---|---|---|---|---|---|---|---|---|---|
| SMCJ5.0A-13 | Diodes Incorporated | Discontinued | 5 | 9.2 | 163 | 1500 | -55 to 150 | Non-compliant | SMC |
| SMCJ5.0A-13-F | Diodes Incorporated | Active | 5 | 9.2 | 163 | 1500 | -55 to 150 | ROHS3 Compliant | CT & Digi-Reel |
| SMCJ5.0A | EVVO Semi | Active | 5 | 9.2 | 163 | 1500 | -55 to 150 | ROHS3 Compliant | CT & Digi-Reel |
| SMCJ5.0A-E3/57T | Vishay General Semiconductor | Active | 5 | 9.2 | 163 | 1500 | -55 to 150 | ROHS3 Compliant | Tape & Reel |
| SMCJ5V0A | Fairchild Semiconductor | Active | 5 | 9.2 | 163 | 1500 | — | — | SMC |
| SMCJ5.0A-TP | Micro Commercial Co | Active | 5 | 9.2 | 163 | 1500 | -55 to 175 | ROHS3 Compliant | Tape & Reel |
| SMCJ5.0A-TR | STMicroelectronics | Active | 5 | 13.4 | 746 | 1500 | -55 to 150 | ROHS3 Compliant | CT & Digi-Reel |
| SMDJ5.0A | Alpha & Omega Semiconductor | Active | 5 | 9.2 | 326.1 | 3000 | -55 to 150 | ROHS3 Compliant | DO-214AB |
| SMDJ5.0A-T7 | Littelfuse Inc. | Active | 5 | 9.2 | 326.1 | 3000 | -65 to 150 | ROHS3 Compliant | DO-214AB |
Engineering Selection Recommendations
Primary Substitutes (Direct Equivalents)
SMCJ5.0A-13-F (Diodes Incorporated), SMCJ5.0A (EVVO Semi), SMCJ5.0A-E3/57T (Vishay), and SMCJ5.0A-TP (Micro Commercial Co) provide complete electrical and mechanical equivalence to the SMCJ5.0A-13. All are active products with ROHS3 compliance. SMCJ5.0A-13-F is the direct successor from the original manufacturer with identical specifications and highest inventory availability (1478 pcs). SMCJ5.0A-TP extends the operating temperature range to 175°C, offering thermal margin for demanding applications.
Secondary Substitutes (Enhanced Performance)
SMDJ5.0A (Alpha & Omega Semiconductor) and SMDJ5.0A-T7 (Littelfuse) maintain identical voltage protection characteristics but provide doubled peak pulse current (326.1A) and quadrupled power dissipation (3000W). These are suitable for applications requiring enhanced transient protection margin or higher repetitive surge stress. SMDJ5.0A-T7 extends the lower operating temperature limit to -65°C.
Non-Equivalent Alternative
SMCJ5.0A-TR (STMicroelectronics) exhibits significantly different clamping voltage (13.4V) and peak pulse current (746A), making it unsuitable as a direct substitute despite matching the 5V standoff voltage. This part is listed as a manufacturer-recommended alternative but does not meet the electrical equivalence criteria for the SMCJ5.0A-13.
Compliance Consideration
The original SMCJ5.0A-13 is RoHS non-compliant. All active substitutes are ROHS3 compliant, aligning with current regulatory requirements for new designs and procurement.
Frequently Asked Questions (FAQ)
Q: Can SMCJ5.0A-13-F be used as a direct replacement for SMCJ5.0A-13?
A: Yes. SMCJ5.0A-13-F is the active equivalent from Diodes Incorporated with identical electrical specifications (5V standoff, 9.2V clamp, 163A peak pulse), same DO-214AB package, and ROHS3 compliance. It is the recommended primary substitute.
Q: What is the difference between SMCJ5.0A and SMDJ5.0A?
A: Both maintain the same 5V standoff and 9.2V clamping voltage. SMCJ5.0A handles 163A peak pulse current at 1500W power dissipation. SMDJ5.0A handles 326.1A peak pulse current at 3000W power dissipation. SMDJ5.0A provides enhanced transient protection but occupies the same DO-214AB footprint.
Q: Is SMCJ5.0A-TR a suitable substitute?
A: No. Although SMCJ5.0A-TR shares the 5V standoff voltage, it specifies a 13.4V clamping voltage and 746A peak pulse current, which differ significantly from the SMCJ5.0A-13 specification of 9.2V clamp and 163A. This part does not provide electrical equivalence.
Q: What packaging options are available for substitutes?
A: Substitutes are available in Cut Tape & Digi-Reel (CT), Tape & Reel (TR), and bulk SMC packaging. All maintain the DO-214AB (SMC) footprint for surface-mount assembly compatibility. Packaging selection depends on procurement volume and assembly line requirements.
Q: Does operating temperature range affect substitution suitability?
A: Operating temperature range does not disqualify a substitute if the application operates within the specified range. SMCJ5.0A-TP extends to 175°C and SMDJ5.0A-T7 extends to -65°C, providing additional thermal margin for extreme environment applications. The original SMCJ5.0A-13 specifies -55°C to 150°C.
Q: Are all active substitutes RoHS compliant?
A: Yes. All active substitute parts listed are ROHS3 compliant. The original SMCJ5.0A-13 is RoHS non-compliant. Substitution with compliant alternatives aligns with current regulatory and procurement standards.
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