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Vishay General Semiconductor - Diodes Division SMA6J6.5A-M3/5A
- Part No.:
- SMA6J6.5A-M3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J6.5A-M3/5A.pdf
- Description:
- TVS DIODE 6.5VWM 10.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,866
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Product details
Overview
SMA6J6.5A-M3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping transient overvoltages on power and signal lines. It features a 6.5 V stand-off voltage (VWM), 7.2–7.96 V breakdown voltage (VBR at 10 mA), 10.2 V maximum clamping voltage at 58.8 A (10/1000 μs), 600 W peak pulse power rating, and operates across –55 °C to +150 °C junction temperature range.
For engineers reviewing the SMA6J6.5A-M3/5A datasheet, SMA6J6.5A-M3/5A pinout, SMA6J6.5A-M3/5A application, or SMA6J6.5A-M3/5A equivalent, key selection considerations include its unidirectional polarity, 600 W (10/1000 μs) surge capability, low dynamic resistance (0.038 Ω), RoHS-compliant halogen-free construction (M3 suffix), and suitability for PCB-level protection of MOSFETs, ICs, and sensor signal lines against inductive switching transients.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR (7.2–7.96 V), it avalanches to limit transient energy by diverting surge current to ground. Its clamping performance is defined by VC = 10.2 V at IPP = 58.8 A (10/1000 μs), with dynamic resistance RD = 0.038 Ω enabling fast, low-voltage clamping under surge conditions.
Thermally, it exhibits RθJA = 120 °C/W (junction-to-ambient) and RθJL = 25 °C/W (junction-to-lead), supporting reliable operation up to TJ = 150 °C. The device is rated for IFSM = 50 A (8.3 ms half-sine) and meets MSL level 1 per J-STD-020 with 260 °C lead-free reflow compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.5 V - Maximum continuous reverse operating voltage before conduction begins; sets safe operating margin below breakdown. |
| VBR (min/max) | 7.2 V / 7.96 V at 10 mA - Confirmed avalanche initiation range; ensures predictable turn-on across production lot and temperature. |
| VC at IPP | 10.2 V at 58.8 A (10/1000 μs) - Clamped voltage during standard surge event; directly limits stress on downstream components. |
| PPPM (10/1000 μs) | 600 W - Peak transient power handling capacity; defines maximum energy absorption without failure under standardized waveform. |
| RD | 0.038 Ω - Low dynamic resistance enables tight clamping and minimal voltage overshoot during fast transients. |
| ID at VWM | 100 μA max - Low leakage ensures minimal standby power loss and no interference with high-impedance signal paths. |
| TJ max. | +150 °C - Enables use in under-hood automotive, industrial motor drives, and enclosed power supplies with elevated ambient temperatures. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads; cathode indicated by color band; RoHS-compliant and halogen-free (M3 suffix); UL 94 V-0 rated molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction; connected to protected line in unidirectional configuration | Provides low VF path (3.5 V at 25 A) for fault current return; must be routed to system ground reference for effective clamping |
| Cathode | Current exit terminal during reverse avalanche; connected to ground or low-impedance return path | Acts as clamping node - voltage at this terminal rises only to VC during surge; requires short, low-inductance trace to ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional polarity | Enables precise clamping on DC-biased lines (e.g., 5 V or 12 V rails) without forward conduction during normal operation |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without moisture-induced damage; eliminates bake requirement |
| Halogen-free & RoHS-compliant (M3) | Fulfills environmental compliance for industrial, telecom, and consumer electronics without compromising thermal or electrical performance |
| Low dynamic resistance (0.038 Ω) | Reduces clamping voltage rise under high di/dt surges, improving protection margin for sensitive 3.3 V or 5 V logic interfaces |
| 13″ tape-and-reel packaging (5A) | Optimized for high-volume automated assembly; 7500 units per reel supports lean manufacturing and JIT delivery |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs and body control modules from load-dump and inductive switching transients. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and chassis ground, activated within nanoseconds of overvoltage onset. Use Value: Limits clamped voltage to ≤10.2 V during 58.8 A surge, preserving integrity of 12 V-rated microcontrollers and CAN transceivers without derating. |
Use Scenario: Safeguarding analog outputs (e.g., 4–20 mA current loops) and digital I/O of pressure/temperature sensors in factory automation. IC Role / Device Role / Timing Role: Bidirectional-capable protection element on sensor interface lines, suppressing ESD and cable discharge events. Use Value: 100 μA max leakage at 6.5 V prevents signal offset errors; 10.2 V clamping protects 3.3 V ADC inputs from >1 kV contact ESD per IEC 61000-4-2. |
| Consumer Device USB Port Protection | Telecom Power Supply Input Stage |
|
Use Scenario: Secondary-level surge suppression on VBUS lines of USB-C ports in laptops and docking stations. IC Role / Device Role / Timing Role: Fast-response clamp positioned downstream of primary fuse and upstream of USB controller's internal ESD diodes. Use Value: Withstands 600 W (10/1000 μs) surges while maintaining <10.2 V clamping, preventing latch-up or permanent damage to USB PHY circuitry. |
Use Scenario: Input-stage transient suppression on AC/DC adapter secondary-side 5 V or 12 V outputs feeding telecom baseband processors. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across output capacitor terminals to absorb ripple-induced spikes and hot-swap transients. Use Value: 6.5 V VWM allows stable operation under nominal 5 V ±5 % regulation; 150 °C TJ max supports sealed enclosure deployment without thermal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J6.5A-E3/5A | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3 suffix); uses standard tin-lead compatible plating | Preferred for legacy reflow processes or cost-sensitive industrial designs where halogen-free mandate does not apply | Select E3 if halogen-free compliance is not required and lower procurement cost is prioritized |
| SMBJ6.5A-M3 | Higher 600 W rating retained, but SMB (DO-214AA) package offers 20 % larger pad area and 10 % lower RθJA (108 °C/W) | Better suited for high-power density layouts or thermally constrained environments requiring enhanced heat dissipation | Choose SMBJ6.5A-M3 when board space permits and thermal margin is critical; SMA6J6.5A-M3/5A remains optimal for compact designs |
Compared with SMA6J6.5A-E3/5A, the M3 variant adds halogen-free compliance without sacrificing electrical performance; versus SMBJ6.5A-M3, the SMA6J6.5A-M3/5A trades minor thermal advantage for smaller footprint and higher component density - ideal for space-constrained consumer and telecom PCBs.
Availability
SMA6J6.5A-M3/5A is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor signal line protection, and consumer USB port protection requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMA6J6.5A-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, TVS devices, and optoelectronics with emphasis on reliability, precision, and application-specific optimization.
The SMA6J6.5A-M3/5A belongs to Vishay's TRANSZORB® family of transient suppressors, engineered specifically for robust, low-clamping protection of DC power and signal lines in harsh electromagnetic environments.
FAQ
What is the clamping voltage of the SMA6J6.5A-M3/5A under a 10/1000 μs surge?
The SMA6J6.5A-M3/5A has a maximum clamping voltage (VC) of 10.2 V at 58.8 A under the standardized 10/1000 μs waveform. This value is measured at TA = 25 °C with recommended PCB pad layout (5.0 mm × 5.0 mm copper per terminal), and reflects the actual voltage seen by protected circuitry during surge events.
Is the SMA6J6.5A-M3/5A suitable for bidirectional transient protection?
No - the SMA6J6.5A-M3/5A is unidirectional only, as confirmed in the Vishay datasheet. It conducts in reverse avalanche mode above VBR but blocks forward current beyond VF ≈ 3.5 V at 25 A. For bidirectional protection, a symmetric TVS pair or dedicated bidirectional device such as SMBJ6.5CA-M3 must be used instead of SMA6J6.5A-M3/5A.
What does the "M3" suffix indicate in SMA6J6.5A-M3/5A?
The "M3" suffix denotes halogen-free, RoHS-compliant construction with matte tin-plated leads that pass JESD 201 Class 2 whisker testing. It also confirms industrial-grade qualification and compliance with Vishay's material categorization standard (doc# 99912), distinguishing it from the E3 variant which is RoHS-compliant but not halogen-free.
How does the SMA6J6.5A-M3/5A compare to SMA6J6.0A in terms of voltage ratings?
The SMA6J6.5A-M3/5A has a higher stand-off voltage (VWM = 6.5 V vs. 6.0 V) and breakdown range (7.2–7.96 V vs. 6.7–7.41 V) than SMA6J6.0A. Its clamping voltage is 10.2 V (vs. 9.5 V), reflecting tighter design margins for systems operating near 6.5 V nominal rails, such as certain 5 V LDO outputs with ±10 % tolerance.
What is the maximum junction temperature rating for SMA6J6.5A-M3/5A?
The SMA6J6.5A-M3/5A has a maximum junction temperature (TJ max.) of +150 °C, verified per Vishay's thermal characterization data. This enables reliable operation in high-ambient environments like engine compartments, industrial enclosures, and sealed telecom power supplies - provided PCB thermal design meets the specified pad layout requirements.
SMA6J6.5A-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):
- 6.5V
- Voltage - Breakdown (Min):
- 7.2V
- Voltage - Clamping (Max) @ Ipp:
- 10.2V
- Current - Peak Pulse (10/1000µs):
- 58.8A
- Power - Peak Pulse:
- 600W
- 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)
SMA6J6.5A-M3/5A FAQ
1.How can I place an order for SMA6J6.5A-M3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J6.5A-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 SMA6J6.5A-M3/5A reliable?
The price and inventory of SMA6J6.5A-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 SMA6J6.5A-M3/5A is usually 5 days.
3.What payment methods are accepted for SMA6J6.5A-M3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J6.5A-M3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J6.5A-M3/5A?
SMA6J6.5A-M3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J6.5A-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 SMA6J6.5A-M3/5A?
For technical support, including SMA6J6.5A-M3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J6.5A-M3/5A requirements.
6.How does Aetrix verify that SMA6J6.5A-M3/5A is sourced from the original manufacturer or authorized distributors?
All SMA6J6.5A-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 SMA6J6.5A-M3/5A meets industry standards.
7.What is the process for return or replacement of SMA6J6.5A-M3/5A?
All SMA6J6.5A-M3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J6.5A-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 SMA6J6.5A-M3/5A part is unused and in its original packaging.
Return procedure for SMA6J6.5A-M3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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