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Vishay General Semiconductor - Diodes Division SMA5J5.0AHM3/H
- Part No.:
- SMA5J5.0AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J5.0AHM3/H.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMA5J5.0AHM3/H from Vishay General Semiconductor is a unidirectional 500 W Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, with 5.0 V stand-off voltage (VWM), 6.4–7.07 V breakdown voltage (VBR), 9.2 V clamping voltage at 54.3 A peak pulse current, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMA5J5.0AHM3/H datasheet, SMA5J5.0AHM3/H pinout, SMA5J5.0AHM3/H application, or SMA5J5.0AHM3/H equivalent, key selection considerations include its 500 W peak pulse power rating, low clamping ratio (VC/VBR ≈ 1.37), halogen-free RoHS-compliant construction, and suitability for protecting 5 V rail interfaces against ISO 7637-2/IEC 61000-4-5 transients in automotive ECUs and industrial sensor nodes.
Technical Context
This device operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 6.4–7.07 V breakdown range at 10 mA test current. It clamps transient energy to ≤9.2 V at 54.3 A (10/1000 μs waveform), with <1 ns response time and low incremental surge resistance enabling effective protection of downstream MOSFETs and ICs.
Designed for surface-mount assembly on 5.0 mm × 5.0 mm copper pads, it features glass-passivated junction, MSL Level 1 moisture sensitivity, and thermal resistance of 80 °C/W (junction-to-ambient). Its AEC-Q101 qualification confirms reliability under automotive temperature cycling (-55 °C to +150 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before conduction begins; defines compatibility with 5 V logic/supply rails. |
| VBR min/max | 6.4 V / 7.07 V at 10 mA - Tight breakdown window ensures predictable turn-on without premature leakage or delayed clamping. |
| VC @ IPPM | 9.2 V at 54.3 A - Clamping voltage limits stress on protected circuitry during 10/1000 μs surges per IEC 61000-4-5. |
| PPPM | 500 W - Peak pulse power handling capacity determines survivability against high-energy transients like load dump. |
| TJ max | +150 °C - Maximum junction temperature supports operation in under-hood automotive environments. |
| Package | SMA (DO-214AC) - Standardized SMT footprint with 2.54 mm lead pitch; compatible with automated pick-and-place and reflow. |
| Qualification | AEC-Q101 qualified (HM3 suffix) - Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, unidirectional polarity indicated by cathode band. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return plane; completes clamping loop during overvoltage events. |
| Cathode | Protected line connection / transient sink | Connected to the 5 V line being protected; conducts avalanche current when Vreverse > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 500 W peak pulse power | Enables robust protection against high-energy transients such as ISO 7637-2 Pulse 5a (load dump) in 12 V automotive systems. |
| Clamping voltage ≤9.2 V | Keeps protected 5 V ICs (e.g., CAN transceivers, microcontrollers) within absolute maximum ratings during surge events. |
| AEC-Q101 qualified (HM3) | Confirms compliance with automotive stress tests including HTOL, TC, and UHAST-required for ECU front-end protection. |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declarations for environmentally regulated electronics manufacturing. |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free reflow profiles without preconditioning; eliminates moisture-related popcorning risk. |
Applications
| Automotive Body Control Module (BCM) | Industrial 5 V Sensor Interface |
|---|---|
Use Scenario: Protects LIN bus transceiver inputs and microcontroller GPIOs from load dump and inductive switching spikes in door modules and lighting controllers. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between 5 V supply rail and ground, acting as last-line transient shunt. Use Value: Prevents latch-up or gate oxide damage in 5 V automotive MCUs by clamping surges to ≤9.2 V while surviving 500 W pulses. |
Use Scenario: Shields analog front-end (AFE) and ADC reference inputs of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Standoff-rated protector on 5 V sensor excitation lines, activated only during ESD or relay-coil flyback events. Use Value: Maintains signal integrity with <1 μA leakage at 5 V and fast sub-nanosecond response, avoiding baseline drift or measurement error. |
| USB-C Power Delivery Port | Telecom Base Station Control Logic |
Use Scenario: Guards CC and VCONN lines in USB-C PD controllers against ESD (IEC 61000-4-2 ±15 kV) and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional clamp referenced to system ground, placed adjacent to connector. Use Value: Achieves <10 pF junction capacitance at 0 V (per Fig. 4), minimizing signal distortion on high-speed CC negotiation lines. |
Use Scenario: Safeguards FPGA configuration pins and PMIC enable signals in remote radio units exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage suppressor on 5 V management rails feeding clock buffers and serial interface ICs. Use Value: Delivers 54.3 A surge current handling with 80 °C/W RθJA, enabling reliable operation without heatsinking in confined RF enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J5.0AHE3/H | Same electrical specs, but RoHS-compliant commercial grade (not AEC-Q101 qualified); uses E3 suffix instead of HM3. | Lacks automotive qualification; suitable for industrial/commercial designs where AEC-Q101 is not mandated. | Select SMA5J5.0AHE3/H for cost-sensitive non-automotive applications requiring identical clamping performance. |
| SMC5J5.0A-HM3 | Same VWM/VBR/VC ratings, but larger SMC (DO-214AB) package with 1500 W PPPM rating and higher 100 A IPPM. | Higher power handling enables protection in higher-energy systems (e.g., 24 V truck ECUs), but requires larger PCB area. | Choose SMC5J5.0A-HM3 when surge threat level exceeds 500 W or layout allows SMC footprint. |
Compared with SMA5J5.0AHM3/H, SMA5J5.0AHE3/H offers identical protection performance without automotive qualification, while SMC5J5.0A-HM3 trades compact size for 3× higher surge capacity-enabling design flexibility across commercial, automotive, and heavy-duty industrial platforms.
Availability
SMA5J5.0AHM3/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, and telecom control logic requiring stable component supply with AEC-Q101 assurance and halogen-free compliance.
Supply support for SMA5J5.0AHM3/H 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-grade validation.
The SMA5J series delivers high-power-density TVS protection in compact SMA packages, designed specifically for space-constrained 5–40 V rail protection in automotive, industrial, and communications equipment.
FAQ
What is the clamping voltage of the SMA5J5.0AHM3/H at its rated peak pulse current?
The SMA5J5.0AHM3/H has a maximum clamping voltage (VC) of 9.2 V at 54.3 A peak pulse current (IPPM), measured using a 10/1000 μs waveform. This value ensures that protected 5 V circuits remain within safe operating limits during transient events. The SMA5J5.0AHM3/H achieves this with low incremental surge resistance and fast avalanche response, making it suitable for critical automotive and industrial applications where voltage overshoot must be tightly controlled.
Is the SMA5J5.0AHM3/H suitable for automotive applications?
Yes, the SMA5J5.0AHM3/H is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant, and automotive-grade construction. It operates across -55 °C to +150 °C and is validated for temperature cycling, humidity bias, and mechanical shock per AEC-Q101. The SMA5J5.0AHM3/H is explicitly intended for use in automotive ECUs, body control modules, and infotainment systems requiring certified transient protection on 5 V rails.
What does the "HM3" suffix mean in SMA5J5.0AHM3/H?
The "HM3" suffix in SMA5J5.0AHM3/H denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction. It distinguishes this variant from commercial-grade versions (e.g., E3) and confirms compliance with automotive reliability standards and environmental regulations. The SMA5J5.0AHM3/H meets JESD201 Class 2 whisker resistance and MSL Level 1 reflow requirements, ensuring long-term stability in harsh automotive environments.
How does the SMA5J5.0AHM3/H compare to bidirectional TVS diodes like SMA5J5.0CA?
The SMA5J5.0AHM3/H is unidirectional and optimized for DC rail protection where polarity is fixed (e.g., 5 V supply to ground), offering lower leakage and tighter VBR tolerance than bidirectional variants. In contrast, SMA5J5.0CA provides symmetrical clamping for AC or floating signal lines but exhibits higher ID at VWM and broader VBR spread. The SMA5J5.0AHM3/H is preferred for 5 V power rail protection due to its superior DC blocking and lower clamping voltage in forward-biased surge conditions.
What is the thermal resistance of the SMA5J5.0AHM3/H, and how does it affect PCB layout?
The SMA5J5.0AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's datasheet Figure 4. To maintain safe junction temperatures during repeated surges, designers must implement adequate copper pour and avoid excessive trace length. The SMA5J5.0AHM3/H does not require external heatsinking in most applications but benefits from thermal vias under pads in high-duty-cycle scenarios.
SMA5J5.0AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J5.0AHM3/H FAQ
1.How can I place an order for SMA5J5.0AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J5.0AHM3/H 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 SMA5J5.0AHM3/H reliable?
The price and inventory of SMA5J5.0AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J5.0AHM3/H is usually 5 days.
3.What payment methods are accepted for SMA5J5.0AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J5.0AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J5.0AHM3/H?
SMA5J5.0AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J5.0AHM3/H 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 SMA5J5.0AHM3/H?
For technical support, including SMA5J5.0AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J5.0AHM3/H requirements.
6.How does Aetrix verify that SMA5J5.0AHM3/H is sourced from the original manufacturer or authorized distributors?
All SMA5J5.0AHM3/H 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 SMA5J5.0AHM3/H meets industry standards.
7.What is the process for return or replacement of SMA5J5.0AHM3/H?
All SMA5J5.0AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J5.0AHM3/H, 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 SMA5J5.0AHM3/H part is unused and in its original packaging.
Return procedure for SMA5J5.0AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J5.0AHM3/H Tags
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