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Vishay General Semiconductor - Diodes Division SMA5J16AHE3_A/I
- Part No.:
- SMA5J16AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J16AHE3_A/I.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,173
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Product details
Overview
SMA5J16AHE3_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 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR), 26.0 V clamping voltage at 19.2 A peak pulse current, and 500 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive power supply rails and industrial sensor interfaces.
For engineers reviewing the SMA5J16AHE3_A/I datasheet, SMA5J16AHE3_A/I pinout, SMA5J16AHE3_A/I application, or SMA5J16AHE3_A/I equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 80 °C/W), polarity marking convention, and real-world use cases in automotive-grade ESD/surge protection circuits.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity identification, optimized for fast response to transients induced by inductive load switching or lightning surges. Its glass-passivated junction ensures stable leakage performance (<1.0 µA at VWM) and low incremental surge resistance under repetitive stress.
Rated for -55 °C to +150 °C junction temperature, it meets MSL Level 1 per J-STD-020 (260 °C reflow peak), supports automated SMT placement, and is qualified to AEC-Q101 - confirming suitability for under-hood automotive electronics where thermal cycling and long-term reliability are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin for protected line. |
| VBR min/max | 17.8 V / 19.7 V at 1 mA - guaranteed breakdown threshold range; ensures consistent turn-on across production lots. |
| VC @ IPPM | 26.0 V at 19.2 A - clamping voltage during 10/1000 µs surge; determines worst-case overvoltage seen by downstream ICs. |
| PPPM | 500 W - peak pulse power handling capability; enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω). |
| RθJA | 80 °C/W - junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; informs board-level thermal design for sustained surge duty. |
| TJ max | +150 °C - maximum allowable junction temperature; supports operation in engine control units and power converters. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode identified by black band at one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path); conducts during forward-biased surge events. |
| Cathode | Reverse-biased clamping terminal | Marked with band; connected to protected line (e.g., 12 V rail); initiates avalanche breakdown above VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including powertrain and body electronics; supports PPAP documentation requirements. |
| Glass-passivated junction | Ensures stable reverse leakage (<1.0 µA at VWM) and long-term reliability under humidity and thermal stress. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving system immunity. |
| MSL Level 1 rating | Enables single-reflow assembly without moisture sensitivity concerns; compatible with standard SMT reflow profiles. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power input and local regulator/LDO. Use Value: Limits transient voltage to ≤26.0 V during 19.2 A surges, preventing damage to MCU power pins and analog front-ends. |
Use Scenario: Safeguarding RS-485 or CAN transceiver inputs against ESD and cable-induced surges in factory automation. IC Role / Device Role / Timing Role: Line-side transient suppressor mounted at connector entry point before signal conditioning circuitry. Use Value: Clamps fast transients within nanoseconds while maintaining <1.0 µA leakage at 16 V, preserving signal integrity. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feed Protection |
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: Standoff-rated TVS on +5 V or +12 V output rail upstream of USB-PD controllers or PMICs. Use Value: Absorbs 500 W pulses without degradation, enabling compliance with UL 62368-1 transient immunity requirements. |
Use Scenario: Protecting PoE-powered equipment (e.g., IP cameras) from surges entering via 48 V DC feed lines. IC Role / Device Role / Timing Role: Primary-stage clamping device on DC input before DC/DC converter and Ethernet PHY. Use Value: Withstands repeated 10/1000 µs surges up to 19.2 A while maintaining 16 V operational margin for stable PoE negotiation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J16AHM3_A/I | Halogen-free variant; identical electrical specs and AEC-Q101 qualification. | No difference in functional use; selected when halogen-free compliance is mandated (e.g., EU automotive Tier 1 specs). | Choose SMA5J16AHM3_A/I if RoHS + halogen-free material declaration is required; otherwise SMA5J16AHE3_A/I suffices. |
| SMCJ16AHE3_A/I | Same VWM/VBR/VC ratings but in larger SMC (DO-214AB) package; higher RθJA (35 °C/W vs. 80 °C/W) and 1500 W PPPM. | Better thermal performance and surge capacity; requires larger PCB footprint and different pad layout. | Choose SMCJ16AHE3_A/I only when >500 W surge energy must be absorbed or board layout allows SMC package. |
Compared with SMA5J16AHE3_A/I, SMA5J16AHM3_A/I offers identical protection performance with halogen-free construction, while SMCJ16AHE3_A/I trades compact size for higher power handling and improved thermal dissipation - making it suitable for more demanding surge environments where space permits.
Availability
SMA5J16AHE3_A/I is available at Aetrix Electronics and suitable for automotive power modules, industrial sensor nodes, consumer adapter designs, and telecom DC feed systems requiring stable component supply with full AEC-Q101 traceability and RoHS compliance.
Supply support for SMA5J16AHE3_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, power density, and automotive qualification.
The SMA5J series was developed specifically for high-power-density transient suppression in space-constrained automotive and industrial applications, balancing 500 W surge capability with SMA package manufacturability and AEC-Q101 compliance.
FAQ
What is the clamping voltage of SMA5J16AHE3_A/I at its rated peak pulse current?
The SMA5J16AHE3_A/I has a maximum clamping voltage (VC) of 26.0 V at its specified peak pulse current (IPPM) of 19.2 A under a 10/1000 µs waveform. This value is measured per JEDEC standards and guarantees the upper voltage limit imposed on protected circuitry during surge events. The SMA5J16AHE3_A/I maintains this clamping performance across its qualified temperature range (-55 °C to +150 °C) and after multiple surge cycles when mounted per recommended pad layout.
Is SMA5J16AHE3_A/I qualified for automotive applications?
Yes, SMA5J16AHE3_A/I is explicitly AEC-Q101 qualified, as confirmed in Vishay's official datasheet revision 09-Jan-2024 (Document Number: 88875). The "HE3" suffix denotes RoHS-compliant and AEC-Q101-qualified construction, validated for use in automotive powertrain, chassis, and body electronics. The SMA5J16AHE3_A/I undergoes stress testing including temperature cycling, HTRB, and surge endurance per AEC-Q101 requirements.
What does the "_A/I" suffix mean in SMA5J16AHE3_A/I?
The "_A/I" suffix in SMA5J16AHE3_A/I indicates packaging configuration: "A" is the revision code (per Vishay's ordering nomenclature), and "I" denotes 13-inch diameter plastic tape and reel with 7500 units per reel. This format complies with EIA-481 standards and supports high-volume SMT assembly. The base part SMA5J16AHE3 remains unchanged - only packaging and reel quantity differ from variants like SMA5J16AHE3_A/H (7-inch reel, 1800 units).
How does SMA5J16AHE3_A/I compare to bidirectional TVS diodes like SMA5J16CA?
SMA5J16AHE3_A/I is unidirectional and intended for DC line protection where polarity is fixed (e.g., +12 V rail to ground), offering forward conduction capability and lower leakage. SMA5J16CA is bidirectional, suited for AC or floating signal lines (e.g., data pairs), with symmetrical clamping in both directions. Their VWM (16 V) and VC (26.0 V) match, but SMA5J16AHE3_A/I supports 40 A IFSM surge current while SMA5J16CA does not specify IFSM due to bidirectional structure.
What is the thermal resistance of SMA5J16AHE3_A/I, and how does it affect layout?
The SMA5J16AHE3_A/I 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, as defined in the Vishay datasheet. This value assumes minimal copper area; increasing pad size or adding thermal vias reduces effective RθJA. For repeated surge duty, designers must ensure average power dissipation stays below derated limits shown in Figure 2 to avoid exceeding the +150 °C TJ max rating.
SMA5J16AHE3_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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 19.2A
- 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)
SMA5J16AHE3_A/I FAQ
1.How can I place an order for SMA5J16AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J16AHE3_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 SMA5J16AHE3_A/I reliable?
The price and inventory of SMA5J16AHE3_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 SMA5J16AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMA5J16AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J16AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J16AHE3_A/I?
SMA5J16AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J16AHE3_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 SMA5J16AHE3_A/I?
For technical support, including SMA5J16AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J16AHE3_A/I requirements.
6.How does Aetrix verify that SMA5J16AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMA5J16AHE3_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 SMA5J16AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMA5J16AHE3_A/I?
All SMA5J16AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J16AHE3_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 SMA5J16AHE3_A/I part is unused and in its original packaging.
Return procedure for SMA5J16AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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