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Vishay General Semiconductor - Diodes Division SMA5J6.5CA-E3/5A
- Part No.:
- SMA5J6.5CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J6.5CA-E3/5A.pdf
- Description:
- TVS DIODE 6.5VWM 11.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,865
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Product details
Overview
SMA5J6.5CA-E3/5A from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for high-energy surge protection on signal and power lines. It features a 6.5 V stand-off voltage (VWM), 7.22–7.98 V breakdown voltage (VBR at 10 mA), 500 W peak pulse power (10/1000 µs), 44.6 A peak pulse current (IPPM), and clamps to ≤11.2 V at rated surge. It is widely used to protect MOSFETs, sensor interfaces, and automotive ECUs against ESD and load-dump transients.
For engineers reviewing the SMA5J6.5CA-E3/5A datasheet, SMA5J6.5CA-E3/5A pinout, SMA5J6.5CA-E3/5A application, or SMA5J6.5CA-E3/5A equivalent, key selection criteria include bidirectional clamping capability, 500 W surge rating with low clamping voltage, RoHS-compliant commercial-grade packaging (E3 suffix), and compatibility with automated SMT assembly on 5.0 mm × 5.0 mm copper pads.
Technical Context
This device operates as a voltage-clamped avalanche diode, responding within <1 ps to transient overvoltages and maintaining stable clamping across -55 °C to +150 °C junction temperature. Its bidirectional symmetry ensures identical electrical characteristics in both polarities, enabling use on AC-coupled or floating signal paths without polarity concerns.
The SMA5J6.5CA-E3/5A leverages glass-passivated junction technology for robust surge endurance and low incremental surge resistance, achieving 11.2 V clamping at 44.6 A while sustaining 500 W peak pulse power under standardized 10/1000 µs waveform conditions per ANSI/IEEE C62.35.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 6.5 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 7.22–7.98 V at 10 mA - Guaranteed avalanche onset range; ensures reliable triggering during transients. |
| VC (Clamping Voltage) | ≤11.2 V at 44.6 A - Peak voltage seen by protected circuit during full-rated surge; critical for downstream IC survivability. |
| PPPM (Peak Pulse Power) | 500 W (10/1000 µs) - Energy-handling capacity under standard lightning-surge waveform; determines protection level for IEC 61000-4-5 Level 3/4. |
| IPPM (Peak Pulse Current) | 44.6 A - Maximum surge current the device safely shunts without degradation; validated with derating above 25 °C ambient. |
| Junction Temp Range | -55 °C to +150 °C - Enables deployment in under-hood automotive, industrial motor drives, and outdoor telecom equipment. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and J-STD-002 solderability requirements. No polarity marking - bidirectional operation confirmed per datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Both terminals function identically; no cathode band marking; enables placement without orientation check in layout. |
| Case (body) | Thermal and mechanical interface | Plastic body provides electrical isolation; thermal path relies on PCB copper pads (0.2" × 0.2") per terminal for RθJA = 80 °C/W. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates need for polarity-aware routing on differential or AC signal lines. |
| Glass-passivated junction | Enhanced reliability and surge endurance - reduces parameter drift after repeated 500 W transients and improves long-term stability. |
| MSL Level 1 compliance | Reflow-safe up to 260 °C peak - supports standard lead-free reflow profiles without pre-baking or moisture sensitivity concerns. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients - contributes to sub-11.2 V clamping performance at 44.6 A. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from ISO 7637-2 load dump and jump-start surges. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to divert >40 A transients before reaching signal conditioning ICs. Use Value: Maintains 6.5 V system-level stand-off while clamping to ≤11.2 V, ensuring downstream op-amps and ADCs remain within absolute maximum ratings. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary surge suppression element across input terminals, coordinated with series impedance to limit let-through energy. Use Value: Withstands repetitive 500 W pulses without parameter shift, supporting 10+ year field life in factory automation environments. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Transient suppression on Ethernet PHY magnetics secondary side and RS-485 data lines exposed to ESD and induced lightning surges. IC Role / Device Role / Timing Role: Fast-response bidirectional clamp limiting common-mode voltage excursions to preserve signal integrity and receiver immunity. Use Value: Sub-11.2 V clamping at 44.6 A prevents latch-up in transceivers while maintaining <1 µA leakage at 6.5 V for low-power sleep modes. |
Use Scenario: Secondary-side overvoltage protection on 5–12 V USB-C PD and wall adapter outputs against capacitor discharge and regulator fault events. IC Role / Device Role / Timing Role: Final-stage crowbar-style protector that activates only during abnormal overvoltage, not normal regulation ripple. Use Value: 6.5 V VWM aligns precisely with 5 V USB and 9–12 V adapter rails, avoiding false triggering while guaranteeing response to >10 V faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J6.5CA-M3/5A | Halogen-free, RoHS-compliant variant with identical electrical specs and thermal performance. | No difference in circuit behavior; selected when halogen-free material compliance is required for end-product certification. | Choose SMA5J6.5CA-M3/5A if IPC-1752 or IEC 61249-2-21 compliance is mandatory for your BOM. |
| SMA5J6.5CAHE3_A/I | AEC-Q101 qualified version; same VWM, VBR, PPPM, but validated for automotive-grade reliability and extended temperature cycling. | Required for under-hood or safety-critical automotive modules; not necessary for commercial/industrial use. | Select SMA5J6.5CAHE3_A/I only when automotive qualification (e.g., TCU, ADAS sensor node) is specified in design requirements. |
Compared with SMA5J6.5CA-M3/5A and SMA5J6.5CAHE3_A/I, the SMA5J6.5CA-E3/5A offers standard commercial-grade reliability at lowest cost and widest availability, making it optimal for non-automotive applications where halogen-free or AEC-Q101 certification is not mandated.
Availability
SMA5J6.5CA-E3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, consistent tape-and-reel delivery, and long-term production support.
Supply support for SMA5J6.5CA-E3/5A 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, TVS devices, and optoelectronics with emphasis on high-reliability, high-power-density solutions.
The SMA5J series was engineered specifically for high-energy transient suppression in space-constrained SMT designs, targeting automotive, industrial, and telecom applications where 500 W surge handling and bidirectional symmetry are essential.
FAQ
What is the clamping voltage of the SMA5J6.5CA-E3/5A at its rated peak pulse current?
The SMA5J6.5CA-E3/5A clamps to a maximum of 11.2 V at its rated peak pulse current of 44.6 A under the standardized 10/1000 µs waveform. This value is measured and guaranteed per Vishay's datasheet Document Number 88875, Revision 09-Jan-2024, and reflects worst-case performance across temperature and unit variation. The SMA5J6.5CA-E3/5A achieves this clamping while maintaining low incremental surge resistance, critical for protecting sensitive downstream components.
Is the SMA5J6.5CA-E3/5A unidirectional or bidirectional?
The SMA5J6.5CA-E3/5A is a bidirectional transient voltage suppressor, as indicated by the "CA" suffix in its part number. Electrical characteristics-including breakdown voltage, clamping voltage, and peak pulse current-apply identically in both directions. Unlike unidirectional variants (e.g., SMA5J6.5A), the SMA5J6.5CA-E3/5A has no cathode band marking and is intended for AC-coupled or floating signal paths where polarity reversal may occur.
What does the "E3/5A" suffix mean in SMA5J6.5CA-E3/5A?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads, while "/5A" specifies packaging in 13-inch diameter plastic tape and reel with a base quantity of 7500 units. This configuration meets JESD 201 Class 2 whisker resistance and J-STD-002 solderability standards. The SMA5J6.5CA-E3/5A is not AEC-Q101 qualified-those versions use "HE3" or "HM3" suffixes.
Can the SMA5J6.5CA-E3/5A be used in automotive applications?
The SMA5J6.5CA-E3/5A is rated for operation from -55 °C to +150 °C and meets MSL Level 1, but it is not AEC-Q101 qualified. For non-safety-critical automotive applications-such as infotainment USB ports or cabin sensor interfaces-engineers may use the SMA5J6.5CA-E3/5A with appropriate system-level validation. However, for engine bay, ADAS, or powertrain modules, the AEC-Q101-qualified SMA5J6.5CAHE3_A/I variant is required. The SMA5J6.5CA-E3/5A itself lacks automotive qualification documentation.
What is the thermal resistance of the SMA5J6.5CA-E3/5A, and how does it affect layout?
The SMA5J6.5CA-E3/5A 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 DO-214AC outline drawing. To maintain safe junction temperatures during repetitive surges, PCB layout must provide adequate copper area and avoid excessive trace length between the SMA5J6.5CA-E3/5A and ground/power planes. Thermal performance degrades significantly with smaller pads or poor copper connectivity.
SMA5J6.5CA-E3/5A 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:
- -
- Bidirectional Channels:
- 1
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
SMA5J6.5CA-E3/5A FAQ
1.How can I place an order for SMA5J6.5CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J6.5CA-E3/5A 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 SMA5J6.5CA-E3/5A reliable?
The price and inventory of SMA5J6.5CA-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J6.5CA-E3/5A is usually 5 days.
3.What payment methods are accepted for SMA5J6.5CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J6.5CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J6.5CA-E3/5A?
SMA5J6.5CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J6.5CA-E3/5A 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 SMA5J6.5CA-E3/5A?
For technical support, including SMA5J6.5CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J6.5CA-E3/5A requirements.
6.How does Aetrix verify that SMA5J6.5CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All SMA5J6.5CA-E3/5A 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 SMA5J6.5CA-E3/5A meets industry standards.
7.What is the process for return or replacement of SMA5J6.5CA-E3/5A?
All SMA5J6.5CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J6.5CA-E3/5A, 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 SMA5J6.5CA-E3/5A part is unused and in its original packaging.
Return procedure for SMA5J6.5CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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