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Vishay General Semiconductor - Diodes Division SMA5J6.5AHE3/61
- Part No.:
- SMA5J6.5AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J6.5AHE3/61.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,309
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Product details
Overview
SMA5J6.5AHE3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on power and signal lines. It features a 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR), 11.2 V clamping voltage at 44.6 A peak pulse current (IPPM), and 500 W peak pulse power (PPPM) with 10/1000 μs waveform. It is AEC-Q101 qualified and used to protect automotive sensor interfaces against inductive switching transients.
For engineers reviewing the SMA5J6.5AHE3/61 datasheet, SMA5J6.5AHE3/61 pinout, SMA5J6.5AHE3/61 application, or SMA5J6.5AHE3/61 equivalent, key selection criteria include clamping performance under 500 W surge, AEC-Q101 qualification status, unidirectional polarity marking, thermal resistance (RθJA = 80 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR (7.22–7.98 V), it avalanches to limit transient energy across protected circuitry. Its glass-passivated junction ensures stable breakdown and low leakage (<500 μA at VWM).
Designed for single-polarity DC rails, SMA5J6.5AHE3/61 delivers 500 W peak pulse power per 10/1000 μs waveform with 11.2 V clamping at 44.6 A, and supports operating junction temperatures from –55 °C to +150 °C. It meets MSL Level 1 and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - maximum continuous reverse operating voltage before conduction begins; defines safe DC bias margin. |
| VBR min/max | 7.22 V / 7.98 V at 10 mA - verified avalanche onset range ensuring consistent turn-on across production lots. |
| VC @ IPPM | 11.2 V at 44.6 A - clamping voltage during 500 W transient; determines maximum stress on downstream ICs. |
| PPPM | 500 W - peak pulse power handling capability with 10/1000 μs waveform; defines surge energy absorption capacity. |
| RθJA | 80 °C/W - junction-to-ambient thermal resistance on standard 5.0 mm × 5.0 mm pads; critical for thermal derating above 25 °C. |
| TJ max | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments. |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / low-side reference | Connected to ground or lower-potential rail; forms return path during clamping. |
| Cathode | Reverse-biased terminal / protected line interface | Connected to protected line (e.g., sensor supply); avalanche conduction occurs here during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including HTOL, TC, and ESD robustness-enables use in ADAS sensor modules. |
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<500 μA) over temperature and lifetime-critical for long-term system integrity. |
| MSL Level 1 rating | Compatible with standard reflow profiles up to 260 °C peak-supports high-yield automated assembly without moisture sensitivity concerns. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients-enhances protection of sensitive 3.3 V or 5 V logic interfaces. |
| 500 W peak pulse power | Handles ISO 7637-2 Pulse 1/2a/5a surges in 12 V automotive systems without degradation-meets OEM-level surge immunity. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load-dump and inductive kickback in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between sensor supply rail and ground, clamping transients within 1 ns response time. Use Value: Limits clamped voltage to 11.2 V during 500 W surges-prevents damage to 12 V-tolerant analog front-ends and microcontroller I/O pins. |
Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to relay coil flyback and motor drive noise in factory automation. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24 V DC input lines, absorbing repetitive 10/1000 μs surges up to 44.6 A peak. Use Value: Maintains <500 μA leakage at 6.5 V-ensures clean logic thresholds and avoids false triggering in optocoupled inputs. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
Use Scenario: Secondary-side surge suppression in AC/DC adapters for smart home devices subjected to lightning-induced surges on DC output lines. IC Role / Device Role / Timing Role: Unidirectional clamp on regulated 5 V/12 V outputs, coordinated with upstream MOVs and fuses. Use Value: Delivers 500 W pulse rating with 80 °C/W thermal resistance-enables compact PCB layout without forced airflow. |
Use Scenario: Protecting Ethernet PHY power rails and auxiliary bias supplies in PoE-powered access points from ESD and cable discharge events. IC Role / Device Role / Timing Role: Fast-response TVS on 3.3 V or 5 V bias lines feeding magnetics and PHY ICs. Use Value: Clamps to 11.2 V within nanoseconds-preserves signal integrity on high-speed data lines while meeting IEC 61000-4-2 Level 4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J6.0AHE3/61 | Lower VWM (6.0 V) and VBR (6.67–7.37 V); same 500 W PPPM and SMA package. | Better suited for 5 V systems with tighter margin below 5.5 V logic thresholds. | Select when protecting 5 V rails where 6.5 V VWM risks false triggering during normal ripple. |
| SMA5J6.5CAHE3/61 | Bidirectional variant; symmetric VBR (7.22–7.98 V) in both polarities; otherwise identical ratings. | Required for AC-coupled or dual-polarity signal lines (e.g., RS-485, audio) where reverse polarity transients occur. | Choose only if bidirectional clamping is mandatory; unidirectional SMA5J6.5AHE3/61 offers lower leakage and simpler layout. |
Compared with SMA5J6.0AHE3/61, SMA5J6.5AHE3/61 provides higher standoff margin for 6 V nominal rails; compared with SMA5J6.5CAHE3/61, it delivers lower reverse leakage and eliminates unnecessary bidirectional conduction in DC-only applications-reducing standby power loss and simplifying failure analysis.
Availability
SMA5J6.5AHE3/61 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O protection, and telecom power rail stabilization requiring stable component supply, AEC-Q101 compliance, and 500 W surge immunity.
Supply support for SMA5J6.5AHE3/61 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 and high-power density.
SMA5J6.5AHE3/61 belongs to the TRANSZORB® high-power TVS family, engineered for automotive-grade transient suppression in harsh environments-targeting ECU, ADAS, and body electronics where AEC-Q101 validation and 500 W pulse handling are mandatory.
FAQ
What is the clamping voltage of SMA5J6.5AHE3/61 at its rated peak pulse current?
The SMA5J6.5AHE3/61 has a maximum clamping voltage (VC) of 11.2 V at its rated peak pulse current (IPPM) of 44.6 A, measured under the standardized 10/1000 μs double-exponential surge waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events. The SMA5J6.5AHE3/61 achieves this clamping performance while maintaining low incremental surge resistance, minimizing overshoot beyond VC.
Is SMA5J6.5AHE3/61 suitable for automotive applications?
Yes, SMA5J6.5AHE3/61 is AEC-Q101 qualified and specifically designed for automotive use. Its construction includes glass-passivated junctions, MSL Level 1 moisture sensitivity rating, and validation across temperature cycling, high-temperature reverse bias, and ESD tests per AEC-Q101. The SMA5J6.5AHE3/61 is commonly deployed in engine control units, body control modules, and ADAS sensor interfaces where ISO 7637-2 compliance and under-hood thermal resilience are required.
What does the "HE3" suffix indicate in SMA5J6.5AHE3/61?
The "HE3" suffix in SMA5J6.5AHE3/61 denotes RoHS-compliant construction with AEC-Q101 qualification. "H" indicates AEC-Q101 qualification, "E3" specifies RoHS-compliant (lead-free) matte tin plating and halogen-free molding compound. This distinguishes it from commercial-grade "E3" or "M3" variants and confirms suitability for automotive production. The "/61" denotes packaging in 7-inch tape-and-reel format with 1800 units per reel.
How does SMA5J6.5AHE3/61 differ from bidirectional versions like SMA5J6.5CAHE3/61?
SMA5J6.5AHE3/61 is unidirectional, with cathode marked and conduction only in reverse bias; SMA5J6.5CAHE3/61 is bidirectional, offering symmetrical clamping in both polarities with no polarity marking. The SMA5J6.5AHE3/61 exhibits lower reverse leakage (<500 μA at 6.5 V) versus the bidirectional version's doubled ID limit for VWM ≤10 V. Use SMA5J6.5AHE3/61 for DC rails; choose SMA5J6.5CAHE3/61 only for AC or dual-polarity signal paths.
What is the thermal resistance of SMA5J6.5AHE3/61, and how does it affect layout?
The SMA5J6.5AHE3/61 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. To maintain safe junction temperature under repeated surges, PCB layout must allocate sufficient copper area and avoid thermal bottlenecks-especially critical in automotive applications where ambient temperatures exceed 85 °C. Derating curves in Figure 2 apply directly to SMA5J6.5AHE3/61.
SMA5J6.5AHE3/61 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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.22V
- Voltage - Clamping (Max) @ Ipp:
- 11.2V
- Current - Peak Pulse (10/1000µs):
- 44.6A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J6.5AHE3/61 FAQ
1.How can I place an order for SMA5J6.5AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J6.5AHE3/61 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 SMA5J6.5AHE3/61 reliable?
The price and inventory of SMA5J6.5AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J6.5AHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J6.5AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J6.5AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J6.5AHE3/61?
SMA5J6.5AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J6.5AHE3/61 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 SMA5J6.5AHE3/61?
For technical support, including SMA5J6.5AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J6.5AHE3/61 requirements.
6.How does Aetrix verify that SMA5J6.5AHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J6.5AHE3/61 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 SMA5J6.5AHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J6.5AHE3/61?
All SMA5J6.5AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J6.5AHE3/61, 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 SMA5J6.5AHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J6.5AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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