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Vishay General Semiconductor - Diodes Division SA16HE3/54
- Part No.:
- SA16HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
SA16HE3/54.pdf
- Description:
- TVS DIODE 16VWM 28.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,396
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Product details
Overview
SA16HE3/54 from Vishay General Semiconductor is a uni-directional TransZORB® transient voltage suppressor (TVS) diode in DO-204AC (DO-15) package, rated for 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR), 500 W peak pulse power (10/1000 µs), and AEC-Q101 qualified for automotive use. It clamps transients up to 26.0 V at 19.2 A peak pulse current and operates from –55 °C to +175 °C junction temperature.
For engineers reviewing the SA16HE3/54 datasheet, SA16HE3/54 pinout, SA16HE3/54 application, or SA16HE3/54 equivalent, this part serves as a robust, RoHS-compliant, high-reliability TVS for protecting MOSFET gates, sensor signal lines, and power rails against inductive switching surges and ESD in automotive ECUs and industrial controllers.
Technical Context
The SA16HE3/54 employs a glass-passivated silicon junction optimized for fast response (<1 ps) and low incremental surge resistance, enabling effective clamping of fast-rising transients such as ISO 7637-2 pulses and IEC 61000-4-5 surges. Its uni-directional polarity features a cathode band marking and supports DC-biased protection paths.
Designed for repetitive surge handling at 0.01% duty cycle, it delivers 500 W peak pulse power with 10/1000 µs waveform and sustains 70 A non-repetitive forward surge current (IFSM). Thermal performance is validated up to 175 °C TJ max, with derating per Fig. 2 above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; sets protection threshold for 12 V automotive systems. |
| VBR min/max | 17.8 V / 19.7 V at 1.0 mA - Confirmed breakdown range ensures reliable turn-on margin above VWM without premature conduction. |
| VC @ IPPM | 26.0 V at 19.2 A - Clamping voltage under full-rated surge defines maximum stress imposed on protected downstream ICs. |
| PPPM | 500 W (10/1000 µs) - Peak surge energy absorption capability suitable for load-dump and inductive kick events. |
| TJ max | +175 °C - Enables operation in under-hood automotive environments and high-power industrial enclosures. |
| IFSM | 70 A (10 ms half-sine) - Withstands high-current inrush or fault conditions without bond-wire failure. |
| RoHS / AEC-Q101 | RoHS-compliant HE3 suffix; AEC-Q101 qualified - Meets automotive reliability and environmental compliance requirements. |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, molded epoxy case meeting UL 94 V-0; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to ground or low-side reference in uni-directional TVS configurations; enables clamping during positive transients on cathode side. |
| Cathode | Current exit point in forward bias; marked with band | Connected to protected line (e.g., 12 V rail or sensor output); conducts during overvoltage events to shunt surge current to ground. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR and low leakage (<1.0 µA at VWM) across temperature and lifetime, critical for low-power sensor interfaces. |
| 500 W peak pulse rating | Provides sufficient headroom to absorb ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 5a (load dump) without degradation. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control, body electronics, and ADAS sensor modules. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot during clamping-critical for protecting 20 V-rated MOSFETs and 3.3 V/5 V logic interfaces. |
| Solder dip tolerance | Withstands 275 °C for 10 s per JESD 22-B106-compatible with standard wave and reflow assembly processes. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in engine control units against load dump and alternator transients. IC Role / Device Role / Timing Role: Uni-directional TVS placed between VCC and GND to clamp positive overvoltage spikes before they reach LDO regulators or MCU VDD pins. Use Value: Limits peak rail voltage to ≤26.0 V during 10/1000 µs surges, preventing latch-up or permanent damage to 3.3 V/5 V logic cores. |
Use Scenario: Shielding analog outputs of pressure or temperature sensors in factory automation PLCs from ESD and cable-induced transients. IC Role / Device Role / Timing Role: TVS connected across differential or single-ended sensor output lines to ground, suppressing sub-100 ns ESD events per IEC 61000-4-2 Level 4. Use Value: Sub-1 ps response time and <1.0 µA leakage at 16 V ensure minimal signal distortion and no DC offset in precision 4–20 mA loops. |
| Motor Drive Gate Protection | Telecom DC Power Interface |
|
Use Scenario: Safeguarding high-side N-channel MOSFET gate drivers in BLDC motor inverters from Miller-induced voltage spikes during switching. IC Role / Device Role / Timing Role: TVS placed between gate and source to clamp dv/dt-induced overshoot exceeding gate oxide rating (±20 V). Use Value: 26.0 V clamping voltage ensures gate-source voltage stays within safe limits even during 500 W surge events. |
Use Scenario: Protecting PoE-powered Ethernet switches' 48 V DC input stage from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary uni-directional TVS on DC input rail upstream of DC/DC converter, absorbing common-mode transients per IEC 61000-4-5. Use Value: 175 °C max junction temperature supports operation in sealed telecom cabinets with elevated ambient temperatures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ16A-E3/52 (Vishay) | Same VWM (16 V), same DO-214AC (SMA) package; lower PPPM (400 W), higher VF (3.5 V), smaller footprint. | Preferred for space-constrained PCBs where 400 W surge margin suffices; not AEC-Q101 qualified. | Select SMAJ16A-E3/52 only if board area is limited and automotive qualification is not required. |
| 1.5KE16A (ON Semiconductor) | Same VWM (16 V), DO-201AD package; identical 500 W rating but higher VC (25.5 V), no AEC-Q101 qualification. | Used in industrial power supplies where automotive reliability is not mandated; lead-free but not whisker-tested to class 2. | Choose 1.5KE16A when cost sensitivity outweighs AEC-Q101 and JEDEC whisker test requirements. |
Compared with SMAJ16A-E3/52 and 1.5KE16A, SA16HE3/54 provides AEC-Q101 qualification, JESD 201 class 2 whisker resistance, and guaranteed 500 W clamping performance in the rugged DO-15 package-making it the preferred choice for automotive and high-reliability industrial deployments.
Availability
SA16HE3/54 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom power supply designs requiring stable component supply, long-term lifecycle support, and AEC-Q101 compliance.
Supply support for SA16HE3/54 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 TVS devices with emphasis on reliability, efficiency, and application-specific optimization.
The SAxx series is designed specifically for robust transient suppression in harsh environments-including automotive, industrial, and telecom-leveraging glass-passivated junctions and AEC-Q101 validation to ensure field longevity.
FAQ
What is the clamping voltage of SA16HE3/54 at its rated peak pulse current?
The SA16HE3/54 has a maximum clamping voltage (VC) of 26.0 V at its rated peak pulse current (IPPM) of 19.2 A under a 10/1000 µs waveform. This value is measured per Figure 7 in the Vishay datasheet 88378 and defines the upper voltage limit imposed on protected circuitry during full-rated surge events. The SA16HE3/54 maintains this clamping performance across its qualified temperature range.
Is SA16HE3/54 suitable for automotive applications?
Yes, SA16HE3/54 is AEC-Q101 qualified and carries the HE3 suffix indicating compliance with JESD 201 class 2 whisker testing and RoHS requirements. Its 175 °C max junction temperature, 500 W surge rating, and DO-204AC mechanical robustness make it appropriate for under-hood and chassis-mounted automotive modules. The SA16HE3/54 meets key stress tests including temperature cycling and humidity bias.
What does the "HE3" suffix mean in SA16HE3/54?
The "HE3" suffix in SA16HE3/54 denotes two key qualifications: "H" indicates AEC-Q101 qualification for automotive use, and "E3" specifies RoHS-compliant construction with JESD 201 class 2 whisker resistance. This distinguishes it from commercial-grade "E3" variants (e.g., SA16A-E3/54) and confirms suitability for high-reliability applications where long-term solder joint integrity and environmental compliance are mandatory. SA16HE3/54 is fully traceable to Vishay's qualified manufacturing lot flow.
How does SA16HE3/54 differ from bi-directional TVS diodes like SA16CA?
SA16HE3/54 is a uni-directional TVS diode with cathode marking and asymmetric conduction-conducting only in reverse bias above VBR and forward-biased like a standard diode below VF. In contrast, SA16CA is bi-directional, offering symmetrical clamping for AC-coupled or floating lines. SA16HE3/54 is used where DC bias exists (e.g., 12 V rails), while SA16CA suits data lines or transformer-coupled interfaces. Their VWM and VBR values are identical, but SA16HE3/54 supports higher IFSM (70 A vs. none specified for CA types).
What is the thermal derating behavior of SA16HE3/54 above 25 °C ambient?
SA16HE3/54 follows the pulse derating curve in Figure 2 of datasheet 88378: peak pulse power decreases linearly from 100% at 25 °C to ~50% at 125 °C ambient, and further to ~25% at 175 °C. Steady-state power dissipation (PD = 3.0 W) also derates per Figure 5, dropping to zero at TL = 200 °C lead temperature. Designers must apply these curves when sizing heatsinking or estimating surge repetition rates in high-temperature enclosures using SA16HE3/54.
SA16HE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 17.4A
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
SA16HE3/54 FAQ
1.How can I place an order for SA16HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for SA16HE3/54 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 SA16HE3/54 reliable?
The price and inventory of SA16HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SA16HE3/54 is usually 5 days.
3.What payment methods are accepted for SA16HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SA16HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SA16HE3/54?
SA16HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SA16HE3/54 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 SA16HE3/54?
For technical support, including SA16HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SA16HE3/54 requirements.
6.How does Aetrix verify that SA16HE3/54 is sourced from the original manufacturer or authorized distributors?
All SA16HE3/54 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 SA16HE3/54 meets industry standards.
7.What is the process for return or replacement of SA16HE3/54?
All SA16HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with SA16HE3/54, 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 SA16HE3/54 part is unused and in its original packaging.
Return procedure for SA16HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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