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Vishay General Semiconductor - Diodes Division SMA5J5.0A-M3/5A
- Part No.:
- SMA5J5.0A-M3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J5.0A-M3/5A.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,315
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Product details
Overview
SMA5J5.0A-M3/5A from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for primary overvoltage protection of DC power rails and signal lines. It features 5.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR) at 10 mA, 500 W peak pulse power (10/1000 µs), 54.3 V clamping voltage at 9.2 A peak pulse current, and operates from –55 °C to +150 °C - used in automotive sensor power inputs and industrial I/O protection.
For engineers reviewing the SMA5J5.0A-M3/5A datasheet, SMA5J5.0A-M3/5A pinout, SMA5J5.0A-M3/5A application, or SMA5J5.0A-M3/5A equivalent, key selection criteria include clamping performance under 10/1000 µs surge, thermal resistance (RθJA = 80 °C/W), halogen-free RoHS compliance (M3 suffix), unidirectional polarity marking, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode employs a glass-passivated silicon junction optimized for fast response (<1 ns) and low incremental surge resistance, enabling effective suppression of ESD, lightning-induced transients, and inductive switching spikes. Its unidirectional configuration provides forward conduction path during overvoltage events while maintaining low leakage (<800 µA at 5.0 V).
The device is rated for 40 A non-repetitive forward surge current (8.3 ms half-sine), supports MSL Level 1 moisture sensitivity, and achieves 25 °C/W junction-to-lead thermal resistance - critical for sustained surge handling in compact PCB layouts without heatsinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 5 V systems. |
| VBR min/max | 6.4 V / 7.07 V at 10 mA - ensures reliable turn-on above nominal supply while avoiding false triggering. |
| VC @ IPPM | 54.3 V at 9.2 A - clamping voltage limits downstream IC stress during standardized 10/1000 µs surge events. |
| PPPM | 500 W - peak pulse power rating determines survivability against high-energy transients like ISO 7637-2 Pulse 1/2a. |
| ID @ VWM | <800 µA - low reverse leakage preserves battery life and avoids loading in always-on sensor circuits. |
| TJ max | +150 °C - enables use in under-hood automotive environments and thermally constrained industrial enclosures. |
| RθJA | 80 °C/W - thermal resistance dictates required copper area (0.2" × 0.2" pads per terminal) for safe power dissipation. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, halogen-free, RoHS-compliant (M3 suffix), matte tin-plated leads, cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / reverse surge return path | Connected to protected line's ground or low-side reference; must route with low-inductance trace. |
| Cathode (banded end) | Reverse-biased blocking terminal / clamping output | Connected to protected line's positive rail; band orientation confirms polarity during automated placement. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMA package | Enables integration into space-constrained modules (e.g., automotive ECUs) with 0.208" height and standard SMT reflow compatibility. |
| Glass-passivated junction | Ensures stable VBR and low leakage over temperature and lifetime, critical for long-term reliability in industrial deployments. |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow profiles up to 260 °C peak, eliminating bake requirements pre-assembly. |
| AEC-Q101 qualification path | M3 suffix indicates halogen-free commercial grade; HE3/HM3 variants available for automotive-grade AEC-Q101 qualified designs. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 5 V power input of wheel speed or pressure sensors exposed to load dump and ISO 7637-2 transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between sensor VCC and chassis ground to shunt surges before reaching LDO or ASIC. Use Value: Limits transient voltage to ≤54.3 V, preventing latch-up or gate oxide damage in 5 V-rated sensor front-end circuitry. |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers subjected to relay coil flyback and field wiring ESD. IC Role / Device Role / Timing Role: Standoff-rated TVS on each input channel, coordinated with series current-limiting resistor and optocoupler isolation. Use Value: Clamps 1 kV/500 W surges within 1 ns, preserving signal integrity and extending optocoupler lifetime in factory automation systems. |
| Consumer USB Power Port | Telecom Base Station Bias Rail |
Use Scenario: Secondary overvoltage protection on 5 V USB Type-A port VBUS line downstream of primary fuse and upstream of USB controller. IC Role / Device Role / Timing Role: Fast-response TVS suppressing ESD (IEC 61000-4-2 ±15 kV contact) and hot-swap transients. Use Value: Sub-1 ns response and 54.3 V clamping prevent USB PHY damage while maintaining <800 µA standby leakage. |
Use Scenario: Protecting +5 V bias rail feeding RF power amplifier bias control circuitry in 4G/5G small cell base stations. IC Role / Device Role / Timing Role: Primary transient suppressor on PA bias line, selected for low RθJL (25 °C/W) to handle repeated RF switching surges. Use Value: Withstands 40 A 8.3 ms surge events without degradation, ensuring uninterrupted PA operation during antenna switching transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J5.0A-E3/5A | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3); identical SMA package and pinout. | Preferred for commercial-grade applications where halogen content is unrestricted; lower cost than M3 variant. | Select E3 when halogen-free requirement is absent and cost optimization is prioritized without compromising surge rating. |
| SMA6J5.0A-M3/5A | Higher PPPM (600 W vs. 500 W); same VWM/VBR/VC; identical SMA package and M3 halogen-free compliance. | Better suited for systems requiring higher surge margin (e.g., heavy-duty industrial motor drives with frequent inductive switching). | Choose SMA6J5.0A-M3/5A when design margin demands >500 W peak pulse power while retaining footprint and thermal profile compatibility. |
Compared with SMA5J5.0A-E3/5A, the SMA5J5.0A-M3/5A adds halogen-free compliance without altering clamping or thermal behavior; versus SMA6J5.0A-M3/5A, it trades 100 W pulse power for tighter board space and lower cost in applications meeting 500 W requirements.
Availability
SMA5J5.0A-M3/5A is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and consumer USB power delivery systems requiring stable component supply, halogen-free compliance, and repeatable surge immunity performance.
Supply support for SMA5J5.0A-M3/5A includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, power density, and automotive qualification.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, high-reliability applications - targeting automotive, industrial, and telecom systems where robustness against ISO 7637, IEC 61000-4-2, and lightning-induced surges is mandatory.
FAQ
What is the clamping voltage of the SMA5J5.0A-M3/5A under a 10/1000 µs surge?
The SMA5J5.0A-M3/5A clamps to a maximum of 54.3 V at its rated peak pulse current of 9.2 A under a 10/1000 µs waveform. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during standardized surge events - critical for ensuring downstream 5 V ICs remain within absolute maximum ratings.
Is the SMA5J5.0A-M3/5A halogen-free and RoHS-compliant?
Yes, the SMA5J5.0A-M3/5A carries the M3 suffix, indicating full RoHS compliance and halogen-free construction per IEC 61249-2-21. This meets stringent environmental requirements for automotive and industrial products sold in EU, China, and other regulated markets without compromising electrical or thermal performance.
How does the SMA5J5.0A-M3/5A differ from bidirectional variants like SMA5J5.0CA?
The SMA5J5.0A-M3/5A is unidirectional with cathode band marking and conducts forward current during overvoltage; SMA5J5.0CA is bidirectional, lacks polarity marking, and clamps symmetrically in both directions. Use SMA5J5.0A-M3/5A for DC rail protection where polarity is fixed; choose SMA5J5.0CA only for AC-coupled or floating signal lines.
What is the recommended PCB pad layout for optimal thermal performance of the SMA5J5.0A-M3/5A?
Vishay specifies mounting the SMA5J5.0A-M3/5A on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve the rated 500 W pulse power and 80 °C/W RθJA. Smaller pads reduce surge capability and increase junction temperature - verified in derating curves (Fig. 2) and thermal impedance plots (Fig. 5) of the official datasheet.
Can the SMA5J5.0A-M3/5A be used in automotive applications requiring AEC-Q101 qualification?
The SMA5J5.0A-M3/5A itself is commercial-grade; however, Vishay offers AEC-Q101-qualified versions under ordering codes SMA5J5.0AHE3_A or SMA5J5.0AHM3_A (with HE3/HM3 suffixes). For automotive use, specify those variants - they share identical electrical specs and SMA package but undergo extended stress testing per AEC-Q101.
SMA5J5.0A-M3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 54.3A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J5.0A-M3/5A FAQ
1.How can I place an order for SMA5J5.0A-M3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J5.0A-M3/5A on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for SMA5J5.0A-M3/5A reliable?
The price and inventory of SMA5J5.0A-M3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J5.0A-M3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J5.0A-M3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J5.0A-M3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J5.0A-M3/5A?
SMA5J5.0A-M3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J5.0A-M3/5A order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for SMA5J5.0A-M3/5A?
For technical support, including SMA5J5.0A-M3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J5.0A-M3/5A requirements.
6.How does Aetrix verify that SMA5J5.0A-M3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J5.0A-M3/5A products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SMA5J5.0A-M3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J5.0A-M3/5A?
All SMA5J5.0A-M3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J5.0A-M3/5A, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The SMA5J5.0A-M3/5A part is unused and in its original packaging.
Return procedure for SMA5J5.0A-M3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J5.0A-M3/5A Tags
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