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Vishay General Semiconductor - Diodes Division SMA5J15-E3/61
- Part No.:
- SMA5J15-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J15-E3/61.pdf
- Description:
- TVS DIODE 15VWM 26.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,938
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Product details
Overview
SMA5J15-E3/61 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in DO-214AC (SMA) package, designed for high-energy surge protection on power and signal lines. It features a 15 V stand-off voltage (VWM), 24.4 V maximum clamping voltage (VC) at 20.5 A peak pulse current (IPPM), and 500 W peak pulse power (10/1000 µs waveform), commonly deployed to protect MOSFETs and sensor interfaces in automotive ECUs.
For engineers reviewing the SMA5J15-E3/61 datasheet, SMA5J15-E3/61 pinout, SMA5J15-E3/61 application, or SMA5J15-E3/61 equivalent, key selection criteria include unidirectional polarity, 16.7–18.5 V breakdown range (VBR), AEC-Q101 qualification, RoHS-compliant E3 termination, and thermal resistance of 80 °C/W (junction-to-ambient).
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 µA leakage at 15 V), but triggers into low-impedance conduction when transient voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance and long-term reliability under repetitive surge stress.
The device is rated for 150 °C maximum junction temperature and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. Its 500 W surge capability is specified with 10/1000 µs waveform on 5.0 mm × 5.0 mm copper pads - critical for thermal management in high-density PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 15 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 16.7 V / 18.5 V - Breakdown occurs within this range at 1 mA test current; defines turn-on threshold |
| VC @ IPPM | 24.4 V - Clamped voltage seen by protected circuit during 20.5 A surge, limiting stress on downstream components |
| PPPM | 500 W - Peak surge power handling (10/1000 µs waveform), determines survivability against lightning or inductive spikes |
| IPPM | 20.5 A - Corresponding peak current at VC; used with PCB trace width and pad thermal design |
| TJ max. | 150 °C - Maximum junction temperature; sets derating envelope above 25 °C ambient |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance; guides heatsinking requirements for sustained surge duty |
Pinout & Package
DO-214AC (SMA) surface-mount package: molded epoxy case with matte tin-plated leads, 0.208" × 0.157" footprint, cathode band marking on one end. Complies with UL 94 V-0 flammability rating and J-STD-002 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional configuration |
| Cathode (banded end) | Reverse-biased blocking terminal | Connected to protected line (e.g., 12 V rail or sensor input); conducts only during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR over temperature and lifetime, minimizing parameter drift in automotive under-hood environments |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per stress test requirements |
| Low incremental surge resistance | Enables tighter clamping (24.4 V at 20.5 A), reducing voltage overshoot on sensitive IC inputs |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning, compatible with high-volume SMT assembly |
| RoHS-compliant E3 termination | Meets JESD201 Class 1A whisker resistance, ensuring long-term solder joint integrity in vibration-prone applications |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power rails from load-dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt TVS placed between VCC and GND, clamping surges before they reach LDO or MCU VDD pins. Use Value: Limits peak rail voltage to ≤24.4 V during 20.5 A transients, preventing latch-up or oxide breakdown in 3.3 V/5 V logic supplies. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors connected to PLC analog input modules. IC Role / Device Role / Timing Role: TVS mounted at sensor connector entry point, suppressing ESD (IEC 61000-4-2) and cable-coupled noise. Use Value: With 1 µA leakage at 15 V, avoids DC offset errors in precision 4–20 mA loops while clamping fast transients below 25 V. |
| DC Motor Drive Flyback Suppression | Telecom Line Card Surge Protection |
Use Scenario: Absorbing inductive kickback from brushed DC motors controlled by N-channel MOSFET H-bridges. IC Role / Device Role / Timing Role: Placed across motor terminals or MOSFET drain-source, conducting flyback energy during PWM turn-off. Use Value: 500 W rating handles repetitive 10/1000 µs surges from motor commutation; 24.4 V clamp prevents MOSFET avalanche failure. | Use Scenario: Protecting Ethernet PHY or RS-485 transceivers on telecom line cards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Front-end unidirectional TVS on differential pairs or power rails, upstream of common-mode chokes. Use Value: Fast response time (<1 ns) and low VC ensure transceiver ICs remain within absolute maximum ratings during 1 kV/0.5 kA threat waveforms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J15AHE3/61 | AEC-Q101 qualified variant with identical electrical specs; HE3 suffix denotes enhanced whisker resistance (JESD201 Class 2) | Required for automotive safety-critical modules where extended whisker reliability is mandated | Select SMA5J15AHE3/61 when AEC-Q101 compliance is contractually required beyond baseline qualification |
| SMC5J15A-E3/73 | Same VWM/VC specs but in larger DO-214AB (SMC) package; higher thermal mass (RθJA = 35 °C/W vs. 80 °C/W) | Better suited for high-duty-cycle surge environments or where board space allows larger footprint | Choose SMC5J15A-E3/73 when thermal performance under repeated surges outweighs size constraints |
Compared with SMA5J15-E3/61, SMA5J15AHE3/61 offers identical protection performance with enhanced process reliability for automotive use, while SMC5J15A-E3/73 trades smaller footprint for superior thermal dissipation - enabling longer surge endurance in industrial motor drives.
Availability
SMA5J15-E3/61 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and DC motor drive systems requiring stable component supply and AEC-Q101-qualified surge protection.
Supply support for SMA5J15-E3/61 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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained automotive and industrial designs, balancing robust surge handling with surface-mount manufacturability and AEC-Q101 compliance.
FAQ
What is the polarity configuration of the SMA5J15-E3/61?
The SMA5J15-E3/61 is a unidirectional TVS diode, with the banded end marking the cathode terminal. It blocks reverse current up to 15 V (VWM) and conducts in forward direction only during overvoltage events on the cathode-connected line. This configuration is distinct from bi-directional variants (e.g., SMA5J15CA) which lack polarity marking and suppress surges in both directions.
Does the SMA5J15-E3/61 meet automotive qualification standards?
Yes, the SMA5J15-E3/61 is AEC-Q101 qualified, confirming its suitability for automotive applications including engine control, body electronics, and ADAS subsystems. The qualification covers stress tests such as temperature cycling, high-temperature operating life, and ESD robustness - all verified per the Vishay qualification report referenced in document 88875.
What is the maximum clamping voltage of the SMA5J15-E3/61 during a surge event?
The SMA5J15-E3/61 has a maximum clamping voltage (VC) of 24.4 V when subjected to its rated peak pulse current of 20.5 A (10/1000 µs waveform). This value is measured under standardized test conditions with 5.0 mm × 5.0 mm copper pads per terminal and defines the upper voltage limit imposed on protected circuits during transient suppression.
How does the SMA5J15-E3/61 differ from the SMA5J15AHE3/61 variant?
The SMA5J15-E3/61 and SMA5J15AHE3/61 share identical electrical specifications including VWM, VBR, VC, and PPPM. The distinction lies in qualification level: SMA5J15AHE3/61 carries full AEC-Q101 certification (denoted by "HE3" suffix), whereas SMA5J15-E3/61 is commercial-grade with AEC-Q101 *tested* but not formally certified - confirmed in Vishay's ordering information table.
What is the thermal resistance of the SMA5J15-E3/61, and how does it affect layout design?
The SMA5J15-E3/61 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 requires careful PCB layout: minimum pad area, internal copper planes, and thermal vias must be implemented to avoid exceeding 150 °C junction temperature during repetitive surge events.
SMA5J15-E3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 26.9V
- Current - Peak Pulse (10/1000µs):
- 18.6A
- 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)
SMA5J15-E3/61 FAQ
1.How can I place an order for SMA5J15-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J15-E3/61 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 SMA5J15-E3/61 reliable?
The price and inventory of SMA5J15-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J15-E3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J15-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J15-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J15-E3/61?
SMA5J15-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J15-E3/61 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 SMA5J15-E3/61?
For technical support, including SMA5J15-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J15-E3/61 requirements.
6.How does Aetrix verify that SMA5J15-E3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J15-E3/61 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 SMA5J15-E3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J15-E3/61?
All SMA5J15-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J15-E3/61, 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 SMA5J15-E3/61 part is unused and in its original packaging.
Return procedure for SMA5J15-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMA5J15-E3/61 Tags
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