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Vishay General Semiconductor - Diodes Division SMA5J15AHE3_A/I
- Part No.:
- SMA5J15AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J15AHE3_A/I.pdf
- Description:
- TVS DIODE 15VWM 24.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,951
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Product details
Overview
SMA5J15AHE3_A/I 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 15 V stand-off voltage (VWM), 16.7–18.5 V breakdown voltage (VBR), 24.4 V clamping voltage at 20.5 A peak pulse current, and 500 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive ECUs, industrial sensor interfaces, and DC power rails.
For engineers reviewing the SMA5J15AHE3_A/I datasheet, SMA5J15AHE3_A/I pinout, SMA5J15AHE3_A/I application, or SMA5J15AHE3_A/I equivalent, key selection criteria include clamping performance under 20.5 A surge, AEC-Q101 qualification status, 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 unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior. Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of ESD, lightning-induced transients, and inductive switching spikes.
Rated for -55 °C to +150 °C junction temperature, it meets MSL Level 1 (260 °C reflow peak) and is qualified to AEC-Q101 for automotive use. The SMA (DO-214AC) package supports high-power density mounting with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102.
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 - guaranteed avalanche breakdown range at 1 mA test current |
| VC @ IPPM | 24.4 V at 20.5 A - clamped voltage during 10/1000 μs surge, defining worst-case overvoltage seen by protected IC |
| PPPM | 500 W - peak pulse power handling capability under standardized transient waveform |
| TJ max. | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 80 °C/W - thermal resistance from junction to ambient, critical for derating above 25 °C ambient |
| ID @ VWM | 1.0 μA - leakage current at stand-off voltage, ensuring minimal standby power loss |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads; cathode indicated by band marking on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (non-banded end) | Connects to lower-potential side of protected line; conducts during forward surge or bias conditions |
| Cathode | Avalanche clamping terminal (banded end) | Connected to higher-potential rail; initiates controlled breakdown when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock per AEC standard |
| Glass-passivated junction | Ensures stable, repeatable avalanche characteristics and long-term parameter stability under repeated surge stress |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns at 260 °C peak temperature |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients, improving protection margin for downstream ICs |
| 500 W peak pulse power | Supports robust protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges on 12 V/24 V systems |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in engine control units against load dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power rail and ground, absorbing energy before it reaches the LDO or MCU. Use Value: Clamps to 24.4 V at 20.5 A, limiting overvoltage below the 28 V absolute maximum rating of typical automotive MCUs. | Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) of industrial pressure sensors exposed to field wiring surges. IC Role / Device Role / Timing Role: Reverse-biased clamping element across signal and return path, shunting induced transients away from precision DAC/ADC circuitry. Use Value: Sub-1 ns response ensures clamping occurs before transient propagates into sensitive op-amp input stages. |
| DC-DC Converter Input Protection | Consumer USB Power Path Protection |
Use Scenario: Front-end surge suppression on 24 V input of isolated DC-DC modules used in factory automation controllers. IC Role / Device Role / Timing Role: Primary overvoltage clamp on converter primary-side input, coordinated with upstream fuse and common-mode choke. Use Value: 500 W PPPM rating sustains multiple 10/1000 μs surges without degradation, supporting 10-year field life in harsh environments. | Use Scenario: Overvoltage guard on VBUS line of USB-C power delivery circuits in portable medical devices. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between VBUS and GND to prevent damage from hot-plug transients or adapter faults. Use Value: 1.0 μA leakage at 15 V ensures no impact on USB suspend current budget (<500 μA). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J15A-E3/61 | Same electrical specs and SMA package; RoHS-compliant commercial grade, not AEC-Q101 qualified | Lacks automotive qualification; suitable for industrial/commercial designs without AEC requirements | Select when AEC-Q101 is not mandated and cost optimization is prioritized |
| SMA6J15AHE3_A/I | 600 W PPPM rating, identical VWM/VBR/VC, same AEC-Q101 qualification and packaging | Higher surge margin for systems requiring IEC 61000-4-5 Level 5 compliance or extended lifetime under repetitive stress | Choose when system-level surge testing demands >500 W headroom or field failure history shows marginal TVS endurance |
Compared with SMA5J15AHE3_A/I, SMA5J15A-E3/61 offers identical protection performance but lacks automotive qualification, while SMA6J15AHE3_A/I delivers 20 % higher pulse power without changing layout or thermal design - enabling upgrade paths without PCB revision.
Availability
SMA5J15AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning, and DC power supply front-end protection requiring stable component supply and AEC-Q101 traceability.
Supply support for SMA5J15AHE3_A/I 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 application-specific performance.
The SMA5J series is engineered for high-power-density transient suppression in space-constrained, high-reliability applications - particularly targeting automotive, industrial, and telecom infrastructure where surge immunity and long-term parametric stability are critical.
FAQ
What is the clamping voltage of SMA5J15AHE3_A/I at its rated peak pulse current?
The SMA5J15AHE3_A/I has a maximum clamping voltage (VC) of 24.4 V when subjected to its rated peak pulse current (IPPM) of 20.5 A under the standard 10/1000 μs waveform. This value is measured at the device terminals with recommended PCB pad layout (0.2" × 0.2" copper per terminal), and defines the upper voltage limit imposed on protected circuitry during surge events.
Is SMA5J15AHE3_A/I qualified to AEC-Q101, and what does that entail for automotive use?
Yes, SMA5J15AHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's datasheet revision 09-Jan-2024. This qualification verifies performance across temperature cycling, humidity bias, mechanical shock, and surge endurance tests required for automotive under-hood and chassis applications - ensuring reliability in environments up to +150 °C junction temperature.
What is the thermal resistance of SMA5J15AHE3_A/I, and how does it affect layout design?
The SMA5J15AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 80 °C/W when mounted on the minimum recommended 0.2" × 0.2" copper pads per terminal. This value directly impacts derating: at 85 °C ambient, its usable peak pulse power drops to ~350 W. Layout must replicate the specified pad size and thermal relief to achieve published ratings.
Does SMA5J15AHE3_A/I have polarity marking, and how is it identified?
Yes, SMA5J15AHE3_A/I is unidirectional and features a visible cathode band on the SMA (DO-214AC) package body. The banded end corresponds to the cathode terminal, which must be connected toward the higher-potential side of the protected line (e.g., VCC or signal line), while the non-banded end is the anode, connected to ground or return path.
What is the maximum reverse leakage current of SMA5J15AHE3_A/I at its stand-off voltage?
The SMA5J15AHE3_A/I exhibits a maximum reverse leakage current (ID) of 1.0 μA when biased at its 15 V stand-off voltage (VWM) and tested at 25 °C ambient. This ultra-low leakage ensures negligible impact on power budget in always-on systems such as automotive body control modules or IoT sensor nodes operating from battery sources.
SMA5J15AHE3_A/I 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:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 20.5A
- 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)
SMA5J15AHE3_A/I FAQ
1.How can I place an order for SMA5J15AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J15AHE3_A/I 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 SMA5J15AHE3_A/I reliable?
The price and inventory of SMA5J15AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J15AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMA5J15AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J15AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J15AHE3_A/I?
SMA5J15AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J15AHE3_A/I 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 SMA5J15AHE3_A/I?
For technical support, including SMA5J15AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J15AHE3_A/I requirements.
6.How does Aetrix verify that SMA5J15AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMA5J15AHE3_A/I 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 SMA5J15AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMA5J15AHE3_A/I?
All SMA5J15AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J15AHE3_A/I, 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 SMA5J15AHE3_A/I part is unused and in its original packaging.
Return procedure for SMA5J15AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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