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SMCJ26AE3/TR13 Equivalent & Substitute Parts
Part Overview
The SMCJ26AE3/TR13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, designed for general-purpose overvoltage protection applications. This surface-mount component operates in the DO-214AB (SMC) package and is rated for 26V reverse standoff voltage with a 42.1V maximum clamping voltage at peak pulse current of 35.6A. The part is Active status and ROHS3 compliant with unlimited moisture sensitivity rating.
Equivalent and substitute parts are identified based on matching or compatible electrical characteristics including reverse standoff voltage, clamping voltage, peak pulse current, power dissipation, and operating temperature range, combined with identical or compatible package configurations.
Substiute Parts
Key Parameters
| Parameter | SMCJ26AE3/TR13 | Unit |
|---|---|---|
| Manufacturer | Microchip Technology | — |
| Type | Zener TVS Diode | — |
| Unidirectional Channels | 1 | — |
| Voltage - Reverse Standoff (Typ) | 26 | V |
| Voltage - Breakdown (Min) | 28.9 | V |
| Voltage - Clamping (Max) @ Ipp | 42.1 | V |
| Current - Peak Pulse (10/1000µs) | 35.6 | A |
| Power - Peak Pulse | 1500 | W |
| Operating Temperature Range | -65 to 150 | °C |
| Package / Case | DO-214AB, SMC | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
| Product Status | Active | — |
Substitute Part Grouping Explanation
Substitute parts for the SMCJ26AE3/TR13 are classified into two categories based on electrical and mechanical compatibility:
Direct Equivalents share identical or near-identical electrical specifications across all critical parameters: 26V reverse standoff voltage, 28.9V minimum breakdown voltage, 42.1V maximum clamping voltage, 35.6A to 35.7A peak pulse current, 1500W peak pulse power, and DO-214AB/SMC package configuration. These parts differ only in manufacturer, packaging format (Tape & Reel variants), or minor temperature range variations within acceptable operating limits.
Similar Substitutes maintain the same voltage ratings (26V standoff, 28.9V breakdown, 42.1V clamping) and package type but feature significantly higher peak pulse current ratings (119A) and power dissipation (5000W). These parts are suitable for applications requiring enhanced transient energy absorption while maintaining voltage protection thresholds.
Substitution eligibility is determined by:
- Voltage - Reverse Standoff: 26V (required match)
- Voltage - Clamping (Max) @ Ipp: 42.1V (required match)
- Package / Case: DO-214AB or SMC (required match)
- Mounting Type: Surface Mount (required match)
- Current - Peak Pulse: 35.6A minimum (for direct equivalents) or 119A (for higher-power variants)
- Operating Temperature: -55°C to 175°C acceptable range
- RoHS Status: ROHS3 Compliant (required match)
Parameter Comparison
| Part Number | Manufacturer | Vwm (V) | Vbr (Min) (V) | Vc (Max) (V) | Ipp (A) | Ppp (W) | Temp Range (°C) | Package | Status |
|---|---|---|---|---|---|---|---|---|---|
| SMCJ26AE3/TR13 | Microchip Technology | 26 | 28.9 | 42.1 | 35.6 | 1500 | -65 to 150 | DO-214AB (SMCJ) | Active |
| SMCJ26A | MDD | 26 | 28.9 | 42.1 | 35.7 | 1500 | -50 to 150 | DO-214AB, SMC | Active |
| SMCJ26A-13-F | Diodes Incorporated | 26 | 28.9 | 42.1 | 35.6 | 1500 | -55 to 150 | DO-214AB, SMC | Active |
| SMCJ26A-E3/57T | Vishay General Semiconductor - Diodes Division | 26 | 28.9 | 42.1 | 35.6 | 1500 | -55 to 150 | DO-214AB (SMCJ) | Active |
| SMCJ26A-E3/9AT | Vishay General Semiconductor - Diodes Division | 26 | 28.9 | 42.1 | 35.6 | 1500 | -55 to 150 | DO-214AB (SMCJ) | Active |
| SMCJ26A-TP | Micro Commercial Co | 26 | 28.9 | 42.1 | 35.7 | 1500 | -55 to 175 | DO-214AB, SMC | Active |
| SMCJ26A-TR | STMicroelectronics | 26 | 28.9 | 53.5 | 187 | 1500 | -55 to 150 | DO-214AB, SMC | Active |
| 5.0SMDJ26A | Taiwan Semiconductor Corporation | 26 | 28.9 | 42.1 | 119 | 5000 | -55 to 175 | DO-214AB (SMC) | Active |
| 5.0SMDJ26A-T7 | Littelfuse Inc. | 26 | 28.9 | 42.1 | 119 | 5000 | -65 to 150 | DO-214AB (SMCJ) | Active |
Engineering Selection Recommendations
Direct Equivalent Selection
Parts SMCJ26A (MDD), SMCJ26A-13-F (Diodes Incorporated), SMCJ26A-E3/57T (Vishay), SMCJ26A-E3/9AT (Vishay), and SMCJ26A-TP (Micro Commercial Co) are direct electrical equivalents to SMCJ26AE3/TR13. All maintain identical voltage specifications (26V standoff, 42.1V clamping) and equivalent peak pulse current (35.6A to 35.7A). All substitute parts are Active status and ROHS3 compliant with MSL 1 rating.
Selection among direct equivalents is determined by:
- Packaging format availability (Tape & Reel vs. Cut Tape)
- Operating temperature range requirements (SMCJ26A-TP extends to 175°C)
- Inventory availability and lead time
- Manufacturer qualification requirements
Higher-Power Variant Selection
Parts 5.0SMDJ26A (Taiwan Semiconductor Corporation) and 5.0SMDJ26A-T7 (Littelfuse Inc.) maintain identical voltage protection characteristics but provide 119A peak pulse current and 5000W power dissipation. These variants are suitable for applications requiring enhanced transient energy absorption. Both are Active status and ROHS3 compliant.
Non-Equivalent Part
SMCJ26A-TR (STMicroelectronics) exhibits a clamping voltage of 53.5V, which exceeds the 42.1V specification of the original part. This part is not suitable as a direct substitute despite matching voltage standoff and package specifications.
Frequently Asked Questions (FAQ)
Q: Can SMCJ26A (MDD) directly replace SMCJ26AE3/TR13 in production?
A: Yes. SMCJ26A maintains identical electrical specifications: 26V reverse standoff, 42.1V clamping voltage, and 35.7A peak pulse current. Both are ROHS3 compliant with MSL 1 rating. Verify packaging format (Tape & Reel availability) and operating temperature range (-50°C to 150°C for SMCJ26A versus -65°C to 150°C for original) against application requirements.
Q: What is the difference between direct equivalents and higher-power variants?
A: Direct equivalents (SMCJ26A series) provide 35.6A to 35.7A peak pulse current and 1500W power dissipation, matching the original specification. Higher-power variants (5.0SMDJ26A series) provide 119A peak pulse current and 5000W power dissipation while maintaining identical voltage protection thresholds. Selection depends on transient energy absorption requirements.
Q: Why is SMCJ26A-TR not recommended as a substitute?
A: SMCJ26A-TR (STMicroelectronics) specifies a maximum clamping voltage of 53.5V, which exceeds the 42.1V requirement. This higher clamping voltage may result in inadequate protection for circuits designed for 42.1V maximum transient voltage.
Q: Are all substitute parts available in Tape & Reel packaging?
A: Direct equivalents SMCJ26A-13-F, SMCJ26A-E3/57T, SMCJ26A-E3/9AT, and SMCJ26A-TP are available in Tape & Reel format. SMCJ26A (MDD) packaging format is not specified in available data. Higher-power variants 5.0SMDJ26A-T7 is Tape & Reel; 5.0SMDJ26A packaging format is not specified.
Q: What operating temperature range should be considered for substitute selection?
A: The original SMCJ26AE3/TR13 operates from -65°C to 150°C. Direct equivalents operate within -50°C to 175°C ranges. Verify that selected substitute meets the minimum temperature requirement of your application. SMCJ26A-TP and 5.0SMDJ26A extend to 175°C maximum operating temperature.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating, matching the original part specification.
Q: Can higher-power variants (5.0SMDJ26A series) be used in place of standard variants?
A: Yes, for applications where enhanced transient energy absorption is beneficial or required. Higher-power variants maintain identical voltage protection characteristics (26V standoff, 42.1V clamping) and DO-214AB/SMC package compatibility. Verify that circuit board thermal design accommodates increased power dissipation (5000W versus 1500W).
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