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Vishay General Semiconductor - Diodes Division P4SMA36A-M3/5A
- Part No.:
- P4SMA36A-M3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA36A-M3/5A.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA36A-M3/5A from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, featuring 36 V breakdown voltage (VBR = 34.2–37.8 V at 1 mA), 30.8 V standoff voltage (VWM), and 49.9 V clamping voltage (VC) at 8.0 A peak pulse current - designed for robust overvoltage protection on power rails and signal lines in industrial sensor interfaces.
For engineers reviewing the P4SMA36A-M3/5A datasheet, P4SMA36A-M3/5A pinout, P4SMA36A-M3/5A application, or P4SMA36A-M3/5A equivalent, this device delivers verified 400 W peak pulse power (10/1000 µs), AEC-Q101 qualification readiness (M3 suffix), halogen-free RoHS compliance, and MSL Level 1 moisture sensitivity - critical for automotive-grade ESD/surge resilience in compact PCB layouts.
Technical Context
The P4SMA36A-M3/5A operates as a unidirectional avalanche diode with glass-passivated junction, enabling sub-nanosecond response to transients induced by inductive switching or lightning surges. Its clamping action begins at VWM = 30.8 V and limits voltage to ≤49.9 V under 8.0 A IPPM, maintaining safe operation for downstream MOSFETs and ICs.
Thermal design is supported by RθJA = 120 °C/W (typ.) and RθJL = 30 °C/W (typ.), with maximum junction temperature of +150 °C and surge rating of 40 A IFSM (8.3 ms half-sine). The device is rated for repetitive 0.01% duty cycle at 400 W below 91 V, derating linearly above TA = 25 °C per Figure 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 34.2 V / 37.8 V at 1 mA - defines precise avalanche initiation threshold for predictable clamping onset |
| VWM | 30.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 49.9 V at 8.0 A - peak clamped voltage during 10/1000 µs transient, limiting stress on protected circuitry |
| PPPM | 400 W - peak pulse power handling capability under standard 10/1000 µs waveform |
| IFSM | 40 A - non-repetitive forward surge current rating (8.3 ms half-sine), supporting inrush tolerance |
| TJ max | +150 °C - maximum junction temperature enabling reliable operation in high-ambient industrial environments |
| Package | SMA (DO-214AC) - surface-mount outline with 5.0 mm × 5.0 mm copper pad thermal footprint per terminal |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 (260 °C reflow peak), cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (unidirectional) | Connected to ground or low-side reference; conducts during positive surge events when cathode is biased higher |
| Cathode | Avalanche clamping node | Connected to protected line (e.g., 3.3 V rail, CAN bus, sensor output); sinks surge current to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables single-device protection against IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) on 24 V systems |
| Glass passivated chip junction | Ensures stable VBR and low leakage (<1 µA at VWM) across temperature and lifetime |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration requirements and automotive ELV directive compliance |
| AEC-Q101 qualified variant available | M3 suffix indicates qualification path; HE3/HM3 variants are fully AEC-Q101 certified for automotive use |
| Low incremental surge resistance | Minimizes VC – VBR differential (ΔV ≈ 12.1 V), reducing energy dissipation in protected ICs |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
|
Use Scenario: Protecting analog output lines (e.g., 4–20 mA, 0–5 V) of pressure/temperature sensors from load-dump and ISO 7637-2 pulses. IC Role / Device Role: Unidirectional TVS placed between sensor output and MCU ADC input, with cathode tied to signal line. Use Value: Clamps transients to ≤49.9 V while maintaining <1 µA leakage at 30.8 V, preserving signal integrity and preventing ADC saturation. |
Use Scenario: Safeguarding LIN bus transceivers and microcontroller I/O pins against battery reverse connection and jump-start spikes. IC Role / Device Role: Cathode connected to LIN line, anode to chassis ground; suppresses negative-going transients via forward conduction and positive surges via avalanche. Use Value: Withstands 40 A IFSM and operates up to +150 °C ambient, meeting automotive under-hood thermal and surge requirements without derating. |
| Telecom Power Supply Input | Consumer USB-C Port Protection |
|
Use Scenario: Secondary-side overvoltage clamp on 12 V/24 V telecom DC-DC converter outputs exposed to field wiring faults. IC Role / Device Role: Parallel-connected TVS across output capacitor, triggered only during >30.8 V excursions to avoid steady-state loading. Use Value: 400 W pulse rating absorbs 10/1000 µs surges without degradation; MSL Level 1 ensures compatibility with high-volume SMT assembly. |
Use Scenario: Downstream protection for USB-C CC logic lines and VBUS detection circuits against ESD and hot-plug overshoot. IC Role / Device Role: Low-capacitance unidirectional clamp (CJ < 100 pF at VWM) placed between CC pin and ground, minimizing signal distortion. Use Value: Fast response time and 30.8 V VWM allow safe operation with 5 V tolerant I/O while clamping ESD events to <50 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A | Same VBR range (34.2–37.8 V), identical SMA package, but rated for 400 W with 1.5x higher IPPM (12.3 A) and lower VC (48.4 V) | Higher surge margin suits 24 V industrial PLC backplanes where peak current exceeds 8 A | Select SMAJ36A when lower clamping voltage and higher surge headroom are required; verify layout thermal relief matches 120 °C/W RθJA |
| 1.5SMC36A | Higher power rating (1500 W), DO-214AB (SMC) package (larger footprint), VC = 49.9 V at 30.1 A | Used in primary-side AC/DC input protection where board space allows larger package and higher energy absorption is needed | Choose 1.5SMC36A for front-end surge suppression requiring >400 W; not suitable for space-constrained secondary-side locations |
Compared with SMAJ36A and 1.5SMC36A, the P4SMA36A-M3/5A offers optimal balance of compact SMA footprint, halogen-free compliance, and 400 W capability - making it preferred for cost-sensitive, high-density consumer and industrial control designs where 8 A peak surge coverage suffices.
Availability
P4SMA36A-M3/5A is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body electronics, telecom power supplies, and consumer USB-C port protection requiring stable component supply, halogen-free compliance, and AEC-Q101-ready qualification path.
Supply support for P4SMA36A-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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The P4SMA Series is engineered for surface-mount transient suppression in space-constrained applications, delivering standardized 400 W surge capability across 6.8–540 V ratings with consistent SMA packaging and AEC-Q101 scalability.
FAQ
What is the maximum clamping voltage of the P4SMA36A-M3/5A under standard test conditions?
The P4SMA36A-M3/5A has a maximum clamping voltage (VC) of 49.9 V at 8.0 A peak pulse current (IPPM) using the 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet (Document Number: 88367) and reflects the upper limit of voltage seen by protected circuitry during a defined surge event. The P4SMA36A-M3/5A maintains this clamping performance across its specified operating temperature range.
Is the P4SMA36A-M3/5A suitable for automotive applications?
The P4SMA36A-M3/5A carries the M3 suffix indicating halogen-free, RoHS-compliant construction and alignment with AEC-Q101 qualification requirements; however, full AEC-Q101 certification applies only to HE3/HM3 variants (e.g., P4SMA36AHE3_A). For automotive body electronics where qualification is mandatory, specify P4SMA36AHE3_A or P4SMA36AHM3_A - the P4SMA36A-M3/5A itself is widely used in pre-qualification stages and non-safety-critical modules.
What does the "/5A" suffix indicate in P4SMA36A-M3/5A?
The "/5A" suffix denotes the packaging configuration: 13-inch diameter plastic tape and reel containing 7500 units. This contrasts with "/61", which specifies a 7-inch reel holding 1800 units. Both formats use the same P4SMA36A-M3 die and meet identical electrical and thermal specifications; the "/5A" option supports high-volume automated assembly with extended reel length and reduced changeover frequency.
How does the thermal resistance of the P4SMA36A-M3/5A affect PCB layout?
The P4SMA36A-M3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain TJ ≤ 150 °C at full 400 W pulse, PCB layout must provide adequate copper area and minimize trace impedance. Reducing pad size or omitting thermal vias increases RθJA, risking premature failure - the P4SMA36A-M3/5A requires strict adherence to the recommended mounting footprint shown in Figure 5 of the datasheet.
What is the reverse leakage current specification for the P4SMA36A-M3/5A at its standoff voltage?
At the maximum standoff voltage (VWM = 30.8 V) and ambient temperature of 25 °C, the P4SMA36A-M3/5A exhibits a maximum reverse leakage current (ID) of 1.0 µA. This low leakage ensures minimal power loss and signal interference in always-on sensor or communication circuits. The P4SMA36A-M3/5A maintains this specification across its full operating temperature range, with leakage increasing predictably per the device's temperature coefficient.
P4SMA36A-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):
- 30.8V
- Voltage - Breakdown (Min):
- 34.2V
- Voltage - Clamping (Max) @ Ipp:
- 49.9V
- Current - Peak Pulse (10/1000µs):
- 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)
P4SMA36A-M3/5A FAQ
1.How can I place an order for P4SMA36A-M3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA36A-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 P4SMA36A-M3/5A reliable?
The price and inventory of P4SMA36A-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 P4SMA36A-M3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA36A-M3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA36A-M3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA36A-M3/5A?
P4SMA36A-M3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA36A-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 P4SMA36A-M3/5A?
For technical support, including P4SMA36A-M3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA36A-M3/5A requirements.
6.How does Aetrix verify that P4SMA36A-M3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA36A-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 P4SMA36A-M3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA36A-M3/5A?
All P4SMA36A-M3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA36A-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 P4SMA36A-M3/5A part is unused and in its original packaging.
Return procedure for P4SMA36A-M3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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