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Vishay General Semiconductor - Diodes Division SMA5J16AHE3/61
- Part No.:
- SMA5J16AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
SMA5J16AHE3/61.pdf
- Description:
- TVS DIODE 16VWM 26VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,424
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Product details
Overview
SMA5J16AHE3/61 from Vishay General Semiconductor is a unidirectional 500 W Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, with 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR), and 26.0 V clamping voltage (VC) at 19.2 A peak pulse current (IPPM). It protects MOSFETs and ICs against inductive switching transients in automotive power electronics.
For engineers reviewing the SMA5J16AHE3/61 datasheet, SMA5J16AHE3/61 pinout, SMA5J16AHE3/61 application, or SMA5J16AHE3/61 equivalent, key selection criteria include clamping performance under 10/1000 µs 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 avalanche clamp, triggered when reverse voltage exceeds its VBR range (17.8–19.7 V at 1 mA). Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 µA at 16 V).
Designed for high-energy transient suppression, it delivers 500 W peak pulse power (10/1000 µs waveform) with fast response time and low incremental surge resistance. Thermal performance is defined by RθJA = 80 °C/W and RθJL = 25 °C/W, supporting operation from –55 °C to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal line bias margin. |
| VBR min/max | 17.8 V / 19.7 V at 1 mA - Confirmed breakdown threshold range; ensures reliable turn-on above VWM with design margin. |
| VC @ IPPM | 26.0 V at 19.2 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on protected downstream IC. |
| PPPM | 500 W - Peak pulse power handling capability; validates suitability for automotive load-dump and ISO 7637-2 pulse 5a events. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive environments with minimal derating. |
| RθJA | 80 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" pads; informs PCB copper area requirements for thermal management. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to ground or low-side return path; conducts during forward surge (e.g., reverse polarity protection). |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., 12 V rail); avalanches into conduction when transient exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; supports OEM production without requalification. |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments. |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns or baking requirements. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 16750-2 pulse 1), improving clamping fidelity. |
Applications
| Automotive Power Distribution | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Suppressing load-dump transients on 12 V battery-fed ECUs in passenger vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and DC-DC input stage. Use Value: Limits voltage to ≤26.0 V during 500 W surges, preventing damage to buck controller ICs rated for 36 V absolute max. |
Use Scenario: Protecting gate drivers and microcontrollers from inductive kickback in 24 V PLC output modules. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor across relay coil or MOSFET drain-source. Use Value: Clamps 10/1000 µs spikes within 1 ns response time, avoiding false triggering of logic-level inputs. |
| Automotive Sensor Interface | Telecom Power Input Stage |
Use Scenario: Safeguarding LIN bus transceivers and analog sensor front-ends against ESD and cable discharge. IC Role / Device Role / Timing Role: Line-side TVS on VBAT-supplied sensor harness entry point. Use Value: Withstands ±30 kV contact ESD (IEC 61000-4-2) and maintains <1.0 µA leakage at 16 V for signal integrity. |
Use Scenario: Front-end surge protection for PoE-powered network switches operating from 48 V DC input. IC Role / Device Role / Timing Role: Primary clamping device on secondary-side 48 V rail before DC-DC isolation stage. Use Value: Delivers 500 W pulse rating with 80 °C/W thermal resistance, enabling compact layout without forced air cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA5J16A-E3/61 | Commercial-grade version; not AEC-Q101 qualified; identical electrical specs and package. | Limited to non-automotive industrial or consumer use where automotive qualification is not required. | Select SMA5J16AHE3/61 when AEC-Q101 compliance is mandatory for vehicle integration. |
| SMA5J16CAHE3/61 | Bidirectional variant; symmetric VBR (17.8–19.7 V) in both directions; same VWM, VC, and PPPM. | Required for AC-coupled or dual-polarity signal lines (e.g., CAN bus, RS-485) where reverse polarity transients occur. | Choose SMA5J16CAHE3/61 only if bidirectional clamping is needed; SMA5J16AHE3/61 is optimal for DC rails with defined polarity. |
Compared with SMA5J16A-E3/61, the SMA5J16AHE3/61 adds automotive qualification without sacrificing electrical performance; versus SMA5J16CAHE3/61, it provides lower cost and simpler layout for unidirectional DC protection, eliminating unnecessary bidirectional capability.
Availability
SMA5J16AHE3/61 is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive protection, and telecom power input stage designs requiring stable component supply and AEC-Q101 assurance.
Supply support for SMA5J16AHE3/61 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, and protection devices with emphasis on reliability and automotive-grade validation.
The SMA5J series was engineered specifically for high-power-density transient suppression in space-constrained automotive and industrial systems, balancing 500 W surge capability with DO-214AC footprint efficiency.
FAQ
What is the clamping voltage of the SMA5J16AHE3/61 under a 10/1000 µs surge?
The SMA5J16AHE3/61 clamps to 26.0 V at its rated peak pulse current of 19.2 A under a 10/1000 µs waveform. This value is measured per IEC 61000-4-5 test conditions and defines the maximum voltage seen by downstream circuitry during standardized surge events. The SMA5J16AHE3/61 maintains this clamping performance across its full operating temperature range.
Is the SMA5J16AHE3/61 qualified for automotive applications?
Yes, the SMA5J16AHE3/61 is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix "HE3". This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, making the SMA5J16AHE3/61 suitable for under-hood and body-control module deployments in passenger vehicles.
What is the thermal resistance of the SMA5J16AHE3/61, and how does it affect PCB layout?
The SMA5J16AHE3/61 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. To maintain TJ ≤ 150 °C during repetitive 500 W surges, the SMA5J16AHE3/61 requires adequate copper pour area and may benefit from thermal vias-especially in enclosed automotive enclosures.
How does the SMA5J16AHE3/61 differ from the SMA5J16CAHE3/61?
The SMA5J16AHE3/61 is unidirectional, with cathode marking and forward conduction capability, while the SMA5J16CAHE3/61 is bidirectional and lacks polarity marking. Both share identical VWM (16 V), VBR (17.8–19.7 V), and PPPM (500 W), but the SMA5J16AHE3/61 is optimized for DC rail protection where polarity is fixed.
What is the maximum reverse leakage current of the SMA5J16AHE3/61 at its stand-off voltage?
The SMA5J16AHE3/61 exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 16 V stand-off voltage (VWM), measured at TA = 25 °C. This low leakage preserves signal integrity and minimizes standby power loss in always-on automotive modules, confirming the SMA5J16AHE3/61's suitability for battery-sensitive applications.
SMA5J16AHE3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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)
SMA5J16AHE3/61 FAQ
1.How can I place an order for SMA5J16AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMA5J16AHE3/61 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 SMA5J16AHE3/61 reliable?
The price and inventory of SMA5J16AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMA5J16AHE3/61 is usually 5 days.
3.What payment methods are accepted for SMA5J16AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMA5J16AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMA5J16AHE3/61?
SMA5J16AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMA5J16AHE3/61 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 SMA5J16AHE3/61?
For technical support, including SMA5J16AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMA5J16AHE3/61 requirements.
6.How does Aetrix verify that SMA5J16AHE3/61 is sourced from the original manufacturer or authorized distributors?
All SMA5J16AHE3/61 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 SMA5J16AHE3/61 meets industry standards.
7.What is the process for return or replacement of SMA5J16AHE3/61?
All SMA5J16AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with SMA5J16AHE3/61, 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 SMA5J16AHE3/61 part is unused and in its original packaging.
Return procedure for SMA5J16AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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