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SMA5J5.0A-M3/5A Equivalent & Substitute Parts
Part Overview
The SMA5J5.0A-M3/5A is a unidirectional transient voltage suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates in the TransZorb® series and is designed for general-purpose transient voltage protection applications. The device features a 5V reverse standoff voltage with a 9.2V maximum clamping voltage and 54.3A peak pulse current capability in a DO-214AC (SMA) package. The part maintains active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching electrical performance parameters, package compatibility, and operational specifications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Reverse Standoff (Typ) | 5 | V |
| Voltage - Breakdown (Min) | 6.4 | V |
| Voltage - Clamping (Max) @ Ipp | 9.2 | V |
| Current - Peak Pulse (10/1000µs) | 54.3 | A |
| Power - Peak Pulse | 500 | W |
| Operating Temperature Range | -55 to 150 | °C |
| Package / Case | DO-214AC, SMA | - |
| Mounting Type | Surface Mount | - |
| RoHS Status | ROHS3 Compliant | - |
Substitute Part Grouping Explanation
Substitute parts for the SMA5J5.0A-M3/5A are classified into two functional groups based on electrical parameter matching:
Group 1: Direct Electrical Equivalents Parts matching all critical electrical parameters: 5V reverse standoff voltage, 6.4V minimum breakdown voltage, 9.2V maximum clamping voltage, and 54.3A peak pulse current. These parts are interchangeable without circuit redesign. Included parts: SMA5J5.0A-E3/61 (Vishay), SMAJ5.0A-TP (Micro Commercial Co), and SMAJ5.0A (MDD).
Group 2: Higher Performance Alternatives Parts with identical voltage ratings (5V standoff, 6.4V breakdown, 9.2V clamping) but enhanced current handling or power dissipation. These provide superior transient protection margins. Included parts: SMAJ5.0AE3/TR13 (Microchip Technology) with 54.3A capability, SMA6J5.0A-TR (STMicroelectronics) with 298A peak pulse current and 600W power rating, and SMAJ5.0A-TR (STMicroelectronics) with 174A peak pulse current and 400W power rating.
Group 3: Voltage-Shifted Alternatives Parts with identical 5V reverse standoff but higher clamping voltages (13.4V). These are suitable only when circuit design permits higher transient voltage levels. Included part: SM4T6V7AY (STMicroelectronics).
All substitute parts maintain DO-214AC (SMA) package compatibility, surface mount configuration, RoHS3 compliance, and MSL 1 rating.
Parameter Comparison
| Part Number | Manufacturer | Voltage - Reverse Standoff (V) | Voltage - Breakdown Min (V) | Voltage - Clamping Max (V) | Current - Peak Pulse (A) | Power - Peak Pulse (W) | Operating Temp (°C) | Package | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|
| SMA5J5.0A-M3/5A | Vishay | 5 | 6.4 | 9.2 | 54.3 | 500 | -55 to 150 | DO-214AC | 668 |
| SMA5J5.0A-E3/61 | Vishay | 5 | 6.4 | 9.2 | 54.3 | 500 | -55 to 150 | DO-214AC | 2000 |
| SMAJ5.0AE3/TR13 | Microchip Technology | 5 | 6.4 | 9.2 | 54.3 | 500 | -65 to 150 | DO-214AC | 5672 |
| SM4T6V7AY | STMicroelectronics | 5 | 6.4 | 13.4 | 174 (8/20µs) | 400 | -55 to 150 | DO-214AC | 2400 |
| SMA6J5.0A-TR | STMicroelectronics | 5 | 6.4 | 13.4 | 298 (8/20µs) | 600 | -55 to 175 | DO-214AC | 29032 |
| SMAJ5.0A-TP | Micro Commercial Co | 5 | 6.4 | 9.2 | 43.5 | 400 | -55 to 175 | DO-214AC | 1220 |
| SMAJ5.0A-TR | STMicroelectronics | 5 | 6.4 | 13.4 | 174 (8/20µs) | 400 | -55 to 150 | DO-214AC | 100100 |
| SMAJ5.0A | MDD | 5 | 6.4 | 9.2 | 43.5 | 400 | -50 to 150 | DO-214AC | 64115 |
Engineering Selection Recommendations
Direct Replacement (Identical Electrical Performance) SMA5J5.0A-E3/61 from Vishay provides identical electrical specifications and is the primary equivalent. SMAJ5.0A-TP from Micro Commercial Co and SMAJ5.0A from MDD offer equivalent performance with extended upper operating temperature limits to 175°C, suitable for applications requiring higher thermal margins.
Enhanced Performance Selection SMAJ5.0AE3/TR13 from Microchip Technology maintains identical clamping voltage and peak pulse current while extending the lower operating temperature to -65°C, beneficial for extreme cold environment applications. SMA6J5.0A-TR from STMicroelectronics provides significantly higher peak pulse current (298A) and power dissipation (600W) with extended upper temperature rating to 175°C, appropriate for high-energy transient environments.
Higher Voltage Clamping Alternative SM4T6V7AY from STMicroelectronics and SMAJ5.0A-TR from STMicroelectronics both feature 13.4V clamping voltage with substantially higher peak pulse current ratings. These are suitable only when circuit design specifications permit higher transient voltage levels and require enhanced current handling.
All recommended substitutes maintain full RoHS3 compliance, MSL 1 rating, and DO-214AC package compatibility. Selection should be based on specific application requirements for operating temperature range, peak pulse current capacity, and allowable clamping voltage.
Frequently Asked Questions (FAQ)
Q: Can SMA5J5.0A-E3/61 be used as a direct replacement for SMA5J5.0A-M3/5A? A: Yes. Both parts share identical electrical parameters: 5V reverse standoff, 6.4V breakdown, 9.2V clamping voltage, and 54.3A peak pulse current. The difference is packaging designation and manufacturer lot traceability. Both are Vishay TransZorb® series components with identical performance.
Q: What is the difference between parts with 9.2V clamping and 13.4V clamping? A: The clamping voltage determines the maximum transient voltage the device allows across the protected circuit. 9.2V clamping parts (SMA5J5.0A series) limit transients to 9.2V maximum. 13.4V clamping parts (SMA6J5.0A and SM4T6V7AY) allow higher transient voltages. Selection depends on circuit protection requirements and component tolerance specifications.
Q: Why do some parts list different peak pulse current measurement standards (10/1000µs vs 8/20µs)? A: Different manufacturers use different standard pulse waveforms for characterization. The 10/1000µs waveform is typical for ESD protection, while 8/20µs is standard for surge protection. Both measurements characterize the same device capability under different stress conditions. Consult device datasheets for specific application pulse waveform requirements.
Q: Are all substitute parts available in the same packaging? A: Yes. All listed substitute parts use DO-214AC (SMA) surface mount package. Packaging variants (Tape & Reel, Cut Tape, Digi-Reel) differ only in supply format and do not affect electrical performance or PCB footprint compatibility.
Q: Which substitute offers the best performance for high-energy transient protection? A: SMA6J5.0A-TR from STMicroelectronics provides the highest peak pulse current (298A) and power dissipation (600W) capability. This part is suitable for applications requiring maximum transient energy absorption while maintaining 5V reverse standoff voltage.
Q: Can SMAJ5.0A-TP be used in applications requiring operation below -55°C? A: No. SMAJ5.0A-TP specifies -55°C minimum operating temperature. For applications requiring -65°C operation, use SMAJ5.0AE3/TR13 from Microchip Technology, which extends the lower temperature limit to -65°C.
Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain RoHS3 compliance and MSL 1 (unlimited) moisture sensitivity rating, matching the original SMA5J5.0A-M3/5A specifications.
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