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Vishay General Semiconductor - Diodes Division P4SMA16A-M3/5A
- Part No.:
- P4SMA16A-M3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA16A-M3/5A.pdf
- Description:
- TVS DIODE 13.6VWM 22.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,523
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Product details
Overview
P4SMA16A-M3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 16 V breakdown voltage (VBR = 15.2–16.8 V at IT = 1.0 mA), 13.6 V stand-off voltage (VWM), and clamps to ≤22.5 V at 17.8 A peak pulse current (10/1000 µs), delivering 400 W peak pulse power for protection of MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the P4SMA16A-M3/5A datasheet, P4SMA16A-M3/5A pinout, P4SMA16A-M3/5A application, or P4SMA16A-M3/5A equivalent, this page delivers verified electrical parameters, thermal behavior under surge conditions, halogen-free RoHS compliance (M3 suffix), AEC-Q101 qualification status, and real-world clamping performance data - all critical for ESD and lightning transient design validation.
Technical Context
This TVS operates as a unidirectional avalanche diode with glass-passivated junction, optimized for fast response (<1 ns) and low incremental surge resistance. Its clamping action begins at VWM = 13.6 V and limits transient energy by diverting surge current away from protected circuitry when voltage exceeds VBR = 15.2–16.8 V.
Thermal performance is defined by RθJA = 120 °C/W (junction-to-ambient, typical) and RθJL = 30 °C/W (junction-to-lead), enabling reliable operation up to TJ = +150 °C. The device meets MSL Level 1 per J-STD-020 and supports reflow soldering at peak temperature 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 15.2 V / 16.8 V at IT = 1.0 mA - defines precise avalanche onset threshold for predictable clamping initiation |
| VWM | 13.6 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 µA; sets safe DC bias margin |
| VC @ IPPM | ≤22.5 V at 17.8 A (10/1000 µs) - actual clamped voltage seen by downstream circuit during worst-case surge |
| PPPM | 400 W - peak transient power handling capability under standard 10/1000 µs waveform; derates above 25 °C |
| IFSM | 40 A (8.3 ms half-sine) - single-event forward surge rating; validates robustness against inductive turn-off spikes |
| TJ max. | +150 °C - maximum junction temperature; enables use in under-hood automotive and high-ambient industrial environments |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 5.0 mm × 5.0 mm copper pad requirement for thermal management |
Pinout & Package
SMA (DO-214AC) package: molded plastic case with matte tin-plated leads, cathode indicated by band marking; compatible with automated placement and J-STD-002 soldering standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path (unidirectional) | Connected to ground or low-side reference; completes clamping loop during transient events |
| Cathode | Reverse-biased terminal / Clamping node | Connected to protected line (e.g., 12 V rail or signal trace); conducts avalanche current when V > VBR |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12 V systems without external series impedance |
| AEC-Q101 qualified (M3 suffix) | Validated for automotive powertrain and body electronics applications requiring zero defect reliability over temperature cycling and humidity exposure |
| Halogen-free & RoHS-compliant (M3) | Meets EU Directive 2011/65/EU and IPC-1752A material declarations; supports green manufacturing and end-of-life recycling |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving system-level immunity margin |
| MSL Level 1 (260 °C peak) | Allows single-reflow assembly without moisture sensitivity concerns; eliminates bake-out step in SMT line |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load dump and alternator ripple in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between supply rail and ground, clamping transients before they reach sensitive analog front-ends. Use Value: Limits clamped voltage to ≤22.5 V at 17.8 A, ensuring downstream 3.3 V/5 V logic remains within absolute maximum ratings during 100 V/50 ms load dump events. |
Use Scenario: Safeguarding 4–20 mA current-loop sensors and RS-485 nodes in factory automation against ESD and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; this unidirectional part protects DC-powered sensor supply lines where polarity is fixed. Use Value: With VWM = 13.6 V and VC = 22.5 V, it preserves signal integrity while absorbing ±30 A transients induced by relay coil de-energization per IEC 61000-4-4. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeding Protection |
|
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters powering USB-C PD controllers and PMICs. IC Role / Device Role / Timing Role: Standoff-rated TVS across +5 V/+9 V/+12 V outputs to clamp flyback transformer leakage spikes and rectifier reverse recovery overshoot. Use Value: 400 W peak power rating handles repetitive 10/1000 µs surges from poor-quality mains input, extending adapter lifetime beyond 50,000 cycles. |
Use Scenario: Protecting PoE (Power over Ethernet) midspan injectors and PSE controllers from cable discharge events and lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional clamping on 48 V DC feed lines upstream of DC/DC converters and Ethernet PHYs. Use Value: Clamping to ≤22.5 V ensures PoE controller ICs (e.g., MAX5969B) remain within 28 V absolute max rating during 100 V/1000 µs common-mode surges per IEEE 802.3bt. |
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-E3/5A | Same SMA package, identical VBR/VC, but rated for 400 W only up to 91 V; P4SMA16A-M3/5A maintains full 400 W rating at 16 V | Not AEC-Q101 qualified; limited to commercial-grade industrial use | Select SMAJ16A-E3/5A only if AEC-Q101 is not required and cost optimization is prioritized |
| 1.5SMC16A | Higher-power SMC package (1500 W), larger footprint (7.11 mm × 6.22 mm), VC = 26.0 V at 62.2 A - less precise clamping for low-voltage rails | Used where higher surge repetition rate or multi-kW threat levels exist (e.g., AC mains input) | Choose 1.5SMC16A only when board space allows and system requires >400 W single-pulse handling |
Compared with SMAJ16A-E3/5A and 1.5SMC16A, P4SMA16A-M3/5A uniquely combines AEC-Q101 qualification, halogen-free compliance, and tight 22.5 V clamping in the compact SMA footprint - making it optimal for space-constrained automotive and industrial modules needing certified reliability without sacrificing precision.
Availability
P4SMA16A-M3/5A is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface, consumer power adapter, telecom PoE feeding, and embedded control system designs requiring stable component supply and long-term lifecycle assurance.
Supply support for P4SMA16A-M3/5A 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 high-reliability, high-efficiency solutions.
The P4SMA Series was developed to deliver standardized, high-power TVS protection in compact surface-mount packages for automotive, industrial, and computing applications demanding AEC-Q101 qualification and halogen-free compliance.
FAQ
What is the maximum clamping voltage of P4SMA16A-M3/5A under a 10/1000 µs surge?
The P4SMA16A-M3/5A clamps to a maximum of 22.5 V when subjected to its rated peak pulse current of 17.8 A under the standard 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88367 and represents the upper limit of voltage seen by protected circuitry during transient events - critical for ensuring downstream ICs remain within their absolute maximum voltage ratings. The P4SMA16A-M3/5A achieves this with minimal overshoot due to low incremental surge resistance.
Is P4SMA16A-M3/5A qualified for automotive applications?
Yes, P4SMA16A-M3/5A is AEC-Q101 qualified, as confirmed by Vishay's ordering code structure (M3 suffix denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified variants). It has passed stress tests including temperature cycling, humidity bias HAST, and mechanical shock - validating suitability for under-hood and chassis-mounted automotive electronics. The P4SMA16A-M3/5A is explicitly listed in the "AEC-Q101 qualified" section of the datasheet revision 09-Jan-2024.
What does the "M3/5A" suffix mean in P4SMA16A-M3/5A?
The "M3" suffix indicates halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance, while "/5A" specifies packaging in 13-inch diameter plastic tape and reel containing 7500 units. This differs from "/61", which denotes 7-inch reels of 1800 units. The M3 grade ensures compliance with automotive and green electronics directives, and the /5A format supports high-volume SMT assembly lines requiring extended reel lengths.
How does P4SMA16A-M3/5A compare to bidirectional TVS diodes like P4SMA16CA?
P4SMA16A-M3/5A is unidirectional and intended for DC line protection where polarity is fixed (e.g., +12 V rail to ground), offering tighter VBR tolerance and lower leakage at VWM. In contrast, P4SMA16CA is bidirectional and suited for AC-coupled or floating signal lines (e.g., RS-485, CAN), with symmetrical clamping in both directions. The P4SMA16A-M3/5A cannot replace P4SMA16CA in AC applications due to polarity dependence and lack of reverse-direction breakdown specification.
What is the thermal resistance of P4SMA16A-M3/5A, and how does it affect PCB layout?
P4SMA16A-M3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead (RθJL) of 30 °C/W. To maintain TJ ≤ 150 °C under 400 W pulses, the PCB must use minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per Vishay's mounting recommendation. Reducing pad size increases RθJA, risking thermal runaway during repetitive surges - a key constraint reflected in the P4SMA16A-M3/5A layout guidelines.
P4SMA16A-M3/5A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 13.6V
- Voltage - Breakdown (Min):
- 15.2V
- Voltage - Clamping (Max) @ Ipp:
- 22.5V
- Current - Peak Pulse (10/1000µs):
- 17.8A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA16A-M3/5A FAQ
1.How can I place an order for P4SMA16A-M3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA16A-M3/5A 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 P4SMA16A-M3/5A reliable?
The price and inventory of P4SMA16A-M3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA16A-M3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA16A-M3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA16A-M3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA16A-M3/5A?
P4SMA16A-M3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA16A-M3/5A 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 P4SMA16A-M3/5A?
For technical support, including P4SMA16A-M3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA16A-M3/5A requirements.
6.How does Aetrix verify that P4SMA16A-M3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA16A-M3/5A 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 P4SMA16A-M3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA16A-M3/5A?
All P4SMA16A-M3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA16A-M3/5A, 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 P4SMA16A-M3/5A part is unused and in its original packaging.
Return procedure for P4SMA16A-M3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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