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Vishay General Semiconductor - Diodes Division SMA6J15A-M3/5A
- Part No.:
- SMA6J15A-M3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA6J15A-M3/5A.pdf
- Description:
- TVS DIODE 15VWM 23.6VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,695
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Product details
Overview
SMA6J15A-M3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 15 V stand-off voltage (VWM), 16.7–18.5 V breakdown voltage (VBR at IT = 1 mA), 23.6 V maximum clamping voltage at 25.4 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 SMA6J15A-M3/5A datasheet, SMA6J15A-M3/5A pinout, SMA6J15A-M3/5A application, or SMA6J15A-M3/5A equivalent, this device is selected for robust overvoltage protection in DC power rails, sensor interfaces, and MOSFET gate drivers where low-profile SMT placement, high surge current handling (25.4 A @ 10/1000 μs), and industrial-grade halogen-free compliance are required.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its specified VBR range. Its dynamic resistance (RD = 0.201 Ω) and low clamping ratio (VC/VBR ≈ 1.41) ensure tight voltage limiting during transient events such as inductive load switching or ESD.
Designed for PCB mounting with 5.0 mm × 5.0 mm copper pads per terminal, it delivers 600 W (10/1000 μs) and 4000 W (8/20 μs) peak pulse power dissipation, with thermal resistance RθJA = 120 °C/W and RθJL = 25 °C/W - enabling reliable operation without external heatsinking under typical industrial ambient conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin. |
| VBR (min/max) | 16.7 V / 18.5 V at IT = 1 mA - Confirmed avalanche onset range; ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 23.6 V at 25.4 A (10/1000 μs) - Clamped voltage seen by protected circuit during standardized surge; limits stress on downstream ICs. |
| PPPM (10×1000 μs) | 600 W - Surge energy absorption capability for long-duration transients like load dump or relay bounce. |
| ID @ VWM | ≤ 0.2 μA - Ultra-low leakage preserves battery life and avoids false triggering in high-impedance sensor lines. |
| TJ max. | +150 °C - Enables use in under-hood automotive, industrial motor drives, and enclosed power supplies without derating. |
| Package | SMA (DO-214AC) - Standardized SMT footprint compatible with automated assembly; 0.208" × 0.157" body size. |
Pinout & Package
Two-terminal unidirectional TVS diode in SMA (DO-214AC) package. Cathode identified by molded band; anode and cathode terminals are axially oriented along the body axis. Mounting requires minimum 5.0 mm × 5.0 mm copper pad per terminal for rated power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to lower-potential side of protected line (e.g., GND or return path) | Enables unidirectional clamping from cathode to anode during reverse overvoltage events. |
| Cathode | Current exit point in forward bias; connected to higher-potential side (e.g., VCC or signal line) | Acts as the transient-sensing node; voltage rise above VBR triggers avalanche conduction to shunt surge current to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free, RoHS-compliant construction (M3 suffix) | Meets IEC 61249-2-21 and JESD201 Class 2 whisker resistance; suitable for industrial and green electronics programs. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life before reflow; no baking required prior to standard SMT assembly at 260 °C peak. |
| Low dynamic resistance (RD = 0.201 Ω) | Minimizes voltage overshoot during fast-rising transients; improves clamping precision versus higher-RD alternatives. |
| 150 °C maximum junction temperature | Supports operation in sealed enclosures or near heat-generating components without thermal shutdown risk. |
| UL 94 V-0 molding compound | Prevents flame propagation in fault conditions; required for safety-certified industrial and telecom equipment. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of microcontroller I/O pins and CAN transceiver power rails against load-dump spikes and relay coil flyback. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between 12 V supply and ground, absorbing >600 W surges within microseconds. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic circuits exposed to ISO 7637-2 Pulse 5a (load dump) up to 35 V. |
Use Scenario: Safeguarding LIN bus transceivers and door module sensors from ESD and alternator ripple-induced transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12 V input rail, activated only during overvoltage events while remaining invisible to normal operation. Use Value: Maintains <0.2 μA leakage at 15 V, avoiding signal distortion or battery drain in always-on vehicle subsystems. |
| Consumer Power Adapters | Industrial PLC Input Modules |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters subjected to lightning-induced surges on mains-connected outputs. IC Role / Device Role / Timing Role: Fast-response clamping device placed across DC output terminals before LDO regulators. Use Value: Limits transient voltage to ≤23.6 V during 8/20 μs surges up to 4000 W, protecting downstream USB-PD controllers and PMICs. |
Use Scenario: Input protection for 24 V digital input cards receiving signals from field sensors and limit switches. IC Role / Device Role / Timing Role: Primary transient suppressor on each channel's 24 V supply line, mounted directly at connector entry point. Use Value: Withstands repeated 10/1000 μs surges up to 25.4 A without degradation, ensuring >100,000 surge cycles in factory automation environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J15A-E3/5A | Same electrical specs; RoHS-compliant but not halogen-free; matte tin plating meets J-STD-002, no JESD201 Class 2 whisker test certification. | Approved for commercial-grade industrial designs where halogen-free requirement is not mandated. | Select when cost sensitivity outweighs halogen-free compliance; identical footprint and solder profile. |
| SMCJ15A-M3 | Higher power rating (1500 W @ 10/1000 μs); larger SMC (DO-214AB) package (0.285" × 0.240"); same VWM/VBR/VC specs. | Used where higher surge margin is needed and board space allows larger footprint; better thermal performance due to larger pad area. | Choose for mission-critical 24 V systems requiring >2× surge headroom; requires PCB layout change. |
Compared with SMA6J15A-M3/5A, the E3 variant offers identical protection performance at lower cost for non-halogen-free designs, while the SMCJ15A-M3 provides significantly higher surge capacity in a physically larger package - making SMA6J15A-M3/5A optimal for space-constrained, halogen-free industrial and automotive applications demanding precise 15 V standoff and verified 600 W capability.
Availability
SMA6J15A-M3/5A is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and consumer power adapters requiring stable component supply, halogen-free compliance, and MSL Level 1 assembly readiness.
Supply support for SMA6J15A-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, efficiency, and application-specific optimization.
The SMA6J series is part of Vishay's Transient Voltage Suppressor portfolio, engineered for high-energy surge suppression in compact SMT packages targeting automotive, industrial, and computing applications where consistent clamping and long-term stability are critical.
FAQ
What is the maximum clamping voltage of the SMA6J15A-M3/5A under a 10/1000 μs surge?
The SMA6J15A-M3/5A has a maximum clamping voltage (VC) of 23.6 V when subjected to a 10/1000 μs waveform at 25.4 A peak pulse current. This value is measured per JEDEC standards and confirmed in the Vishay datasheet revision 09-Jan-2024, Document Number 89460. The SMA6J15A-M3/5A maintains this clamping performance across its full operating temperature range.
Does the SMA6J15A-M3/5A meet automotive qualification standards?
The SMA6J15A-M3/5A is not AEC-Q200 qualified, but it is widely used in automotive body electronics (e.g., BCMs, door modules) due to its –55 °C to +150 °C operating range, halogen-free construction, and robust surge ratings. For AEC-Q200-compliant alternatives, consult Vishay's Automotive Grade TVS portfolio; the SMA6J15A-M3/5A itself is industrial-grade with MSL Level 1 and JESD201 Class 2 whisker resistance.
What is the leakage current specification for SMA6J15A-M3/5A at its stand-off voltage?
At the 15 V stand-off voltage (VWM), the SMA6J15A-M3/5A exhibits a maximum reverse leakage current (ID) of 0.2 μA at 25 °C, as specified in the Electrical Characteristics table of the Vishay datasheet. This ultra-low leakage ensures minimal power loss and signal integrity preservation in high-impedance sensor and battery-powered circuits using the SMA6J15A-M3/5A.
Can SMA6J15A-M3/5A be used in bidirectional configurations?
No - the SMA6J15A-M3/5A is a unidirectional TVS diode, intended only for clamping positive transients relative to ground. Bidirectional protection requires either two SMA6J15A-M3/5A devices in series opposition or a dedicated bidirectional part such as SMA6J15CA. Using SMA6J15A-M3/5A in reverse bias beyond its specified parameters risks permanent failure.
What does the "M3" and "5A" suffix mean in SMA6J15A-M3/5A?
The "M3" suffix denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance; "5A" specifies the packaging format: 7500 units per 13-inch diameter plastic tape and reel. This differs from "61"-suffixed variants, which ship in 1800-unit 7-inch reels. Both share identical electrical and thermal characteristics - the SMA6J15A-M3/5A is functionally identical to SMA6J15A-M3/61 except for reel size and quantity.
SMA6J15A-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):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 23.6V
- Current - Peak Pulse (10/1000µs):
- 25.4A
- 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)
SMA6J15A-M3/5A FAQ
1.How can I place an order for SMA6J15A-M3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA6J15A-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 SMA6J15A-M3/5A reliable?
The price and inventory of SMA6J15A-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 SMA6J15A-M3/5A is usually 5 days.
3.What payment methods are accepted for SMA6J15A-M3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA6J15A-M3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA6J15A-M3/5A?
SMA6J15A-M3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA6J15A-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 SMA6J15A-M3/5A?
For technical support, including SMA6J15A-M3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA6J15A-M3/5A requirements.
6.How does Aetrix verify that SMA6J15A-M3/5A is sourced from the original manufacturer or authorized distributors?
All SMA6J15A-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 SMA6J15A-M3/5A meets industry standards.
7.What is the process for return or replacement of SMA6J15A-M3/5A?
All SMA6J15A-M3/5A units undergo pre-shipment inspection (PSI). If there is an issue with SMA6J15A-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 SMA6J15A-M3/5A part is unused and in its original packaging.
Return procedure for SMA6J15A-M3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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