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SMBJ7.0AE3/TR13 Equivalent & Substitute Parts
Part Overview
The SMBJ7.0AE3/TR13 is a unidirectional transient voltage suppressor (TVS) diode manufactured by Microchip Technology, classified as a Zener-type device in the DO-214AA (SMB) surface mount package. This component is designed for general-purpose transient voltage suppression applications, featuring a 7V reverse standoff voltage and 12V maximum clamping voltage at peak pulse current. The part is active in production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).
Equivalent and substitute parts are identified to address inventory availability, supply chain continuity, and design flexibility while maintaining electrical and mechanical compatibility within specified parameter tolerances.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 7 | V |
| Voltage - Breakdown (Min) | 7.78 | V |
| Voltage - Clamping (Max) @ Ipp | 12 | V |
| Current - Peak Pulse (10/1000µs) | 50 | A |
| Power - Peak Pulse | 600 | W |
| Operating Temperature Range | -65 to 150 | °C (TJ) |
| Package / Case | DO-214AA, SMB | — |
| Mounting Type | Surface Mount | — |
| Type | Zener | — |
| Unidirectional Channels | 1 | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the SMBJ7.0AE3/TR13 are classified into two categories based on electrical parameter alignment:
Direct Equivalents maintain identical or near-identical electrical specifications across all critical parameters: reverse standoff voltage (7V typical), breakdown voltage (7.78V minimum), clamping voltage (12V maximum at Ipp), and peak pulse current (50A). These parts are sourced from different manufacturers (MDD, Diodes Incorporated, Vishay General Semiconductor, Micro Commercial Co) and feature the same DO-214AA (SMB) package configuration. All direct equivalents are active products with RoHS3 compliance and MSL 1 rating.
Similar Alternatives exhibit minor deviations in electrical parameters while maintaining functional compatibility within the 7V standoff voltage class. These parts include the P6SMB8.2A (52A peak pulse current, 12.1V clamping voltage) and SACB7.0 (38A peak pulse current, 12.6V clamping voltage). Similar alternatives are suitable for applications where parameter tolerances permit slight variations in clamping voltage and peak pulse current handling.
Substitution eligibility is determined by:
- Reverse standoff voltage within 7V nominal class
- Breakdown voltage in the 7.78V to 8.33V range
- Clamping voltage between 12V and 12.6V
- Peak pulse current rated at 38A or higher
- DO-214AA or SMB package configuration
- Surface mount mounting type
- Active product status
- RoHS3 compliance
- MSL 1 rating
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Voltage - Reverse Standoff (Typ) | Voltage - Breakdown (Min) | Voltage - Clamping (Max) @ Ipp | Current - Peak Pulse (10/1000µs) | Power - Peak Pulse | Operating Temperature (TJ) | Package / Case | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| SMBJ7.0AE3/TR13 | Microchip Technology | 7V | 7.78V | 12V | 50A | 600W | -65 to 150°C | DO-214AA, SMB | Active | ROHS3 Compliant |
| SMBJ7.0A | MDD | 7V | 7.78V | 12V | 50A | 600W | -50 to 150°C | DO-214AA, SMB | Active | ROHS3 Compliant |
| SMBJ7.0A-13-F | Diodes Incorporated | 7V | 7.78V | 12V | 50A | 600W | -55 to 150°C | DO-214AA, SMB | Active | ROHS3 Compliant |
| SMBJ7.0A-E3/52 | Vishay General Semiconductor - Diodes Division | 7V | 7.78V | 12V | 50A | 600W | -55 to 150°C | DO-214AA, SMB | Active | ROHS3 Compliant |
| SMBJ7.0A-M3/52 | Vishay General Semiconductor - Diodes Division | 7V | 7.78V | 12V | 50A | 600W | -55 to 150°C | DO-214AA, SMB | Active | ROHS3 Compliant |
| SMBJ7.0A-TP | Micro Commercial Co | 7V | 7.78V | 12V | 50A | 600W | -55 to 175°C | DO-214AA, SMB | Active | ROHS3 Compliant |
| P6SMB8.2A | Taiwan Semiconductor Corporation | 7.02V | 7.79V | 12.1V | 52A | 600W | -55 to 150°C | DO-214AA, SMB | Active | ROHS3 Compliant |
| SACB7.0 | Littelfuse Inc. | 7V | 8.33V | 12.6V | 38A | 500W | -55 to 150°C | DO-214AA, SMB | Active | ROHS3 Compliant |
Engineering Selection Recommendations
Direct Equivalent Selection
The SMBJ7.0A (MDD), SMBJ7.0A-13-F (Diodes Incorporated), SMBJ7.0A-E3/52 (Vishay), SMBJ7.0A-M3/52 (Vishay), and SMBJ7.0A-TP (Micro Commercial Co) are direct electrical equivalents to the SMBJ7.0AE3/TR13. All five alternatives maintain identical reverse standoff voltage (7V), breakdown voltage (7.78V), clamping voltage (12V), and peak pulse current (50A) specifications. All are active products with RoHS3 compliance and MSL 1 rating, ensuring regulatory and environmental compatibility.
The SMBJ7.0A-TP variant from Micro Commercial Co offers an extended upper operating temperature limit of 175°C compared to the standard 150°C maximum, providing thermal margin for high-temperature applications. The MDD variant operates at a reduced lower temperature limit of -50°C versus -65°C, suitable for applications not requiring extreme cold-temperature performance.
Similar Alternative Selection
The P6SMB8.2A (Taiwan Semiconductor Corporation) operates within the 7V standoff voltage class with marginally higher peak pulse current (52A versus 50A) and clamping voltage (12.1V versus 12V). This part is suitable for applications where the additional current handling capacity and minimal voltage increase are acceptable.
The SACB7.0 (Littelfuse Inc.) features a higher breakdown voltage minimum (8.33V versus 7.78V) and reduced peak pulse current (38A versus 50A) with lower peak pulse power (500W versus 600W). This part is appropriate for applications with lower transient current requirements and where the higher breakdown voltage threshold does not conflict with circuit protection specifications.
All substitute parts carry active product status, RoHS3 compliance, and MSL 1 rating, confirming suitability for modern manufacturing and environmental standards.
Frequently Asked Questions (FAQ)
Q: Can the SMBJ7.0A (MDD) be used as a direct replacement for the SMBJ7.0AE3/TR13?
A: Yes. The SMBJ7.0A maintains identical electrical specifications: 7V reverse standoff voltage, 7.78V breakdown voltage, 12V clamping voltage, and 50A peak pulse current. Both are active products with RoHS3 compliance and MSL 1 rating. The primary difference is the lower operating temperature minimum (-50°C versus -65°C), which does not affect applications operating above -50°C.
Q: What is the difference between the Vishay SMBJ7.0A-E3/52 and SMBJ7.0A-M3/52 variants?
A: Both Vishay variants are electrically identical with 7V reverse standoff voltage, 7.78V breakdown voltage, 12V clamping voltage, and 50A peak pulse current. The suffix designations (-E3/52 and -M3/52) indicate different manufacturing or packaging codes assigned by Vishay. Both are suitable direct replacements for the SMBJ7.0AE3/TR13.
Q: Is the P6SMB8.2A compatible with the SMBJ7.0AE3/TR13?
A: The P6SMB8.2A is a similar alternative with minor parameter variations. It maintains the 7V standoff voltage class but features 52A peak pulse current (versus 50A) and 12.1V clamping voltage (versus 12V). Compatibility depends on circuit protection requirements. If the application tolerates the slightly higher clamping voltage and benefits from increased current capacity, the P6SMB8.2A is suitable. If the circuit requires strict 12V clamping voltage adherence, the direct equivalents are preferred.
Q: Can the SACB7.0 replace the SMBJ7.0AE3/TR13?
A: The SACB7.0 is a similar alternative with acceptable compatibility for applications with lower transient current requirements. It maintains the 7V standoff voltage class but features 38A peak pulse current (versus 50A), 12.6V clamping voltage (versus 12V), and 500W peak pulse power (versus 600W). Use the SACB7.0 only if the application circuit can tolerate reduced current handling capacity and the higher clamping voltage threshold.
Q: Are all substitute parts available in Tape & Reel (TR) packaging?
A: Yes. All listed substitute parts are supplied in Tape & Reel packaging, matching the SMBJ7.0AE3/TR13 packaging format for automated assembly compatibility.
Q: Do all substitute parts meet RoHS3 compliance?
A: Yes. All direct equivalents and similar alternatives listed are RoHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating, ensuring compatibility with modern manufacturing processes and environmental regulations.
Q: What is the operating temperature range consideration when selecting a substitute?
A: The SMBJ7.0AE3/TR13 operates from -65°C to 150°C. The MDD variant operates from -50°C to 150°C, suitable for applications not requiring -65°C minimum performance. The SMBJ7.0A-TP variant extends to 175°C maximum, providing thermal margin for high-temperature environments. Select based on specific application temperature requirements.
Q: Are there inventory considerations when selecting a substitute?
A: Inventory levels vary by part number and manufacturer. The SMBJ7.0A (MDD) has 15,665 units in stock, SMBJ7.0A-13-F (Diodes) has 18,100 units, and SMBJ7.0A-TP (Micro Commercial Co) has 15,300 units. The SMBJ7.0AE3/TR13 has 6,100 units available. Substitute selection may be influenced by supply availability and lead time requirements.
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