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Vishay General Semiconductor - Diodes Division P4SMA36A-E3/61
- Part No.:
- P4SMA36A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA36A-E3/61.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:264
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Product details
Overview
P4SMA36A-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for clamping inductive switching transients and ESD events on power rails and signal lines. It features a 36 V breakdown voltage (VBR = 34.2–37.8 V at 1 mA), 30.8 V standoff voltage (VWM), 49.9 V maximum clamping voltage at 8.0 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the P4SMA36A-E3/61 datasheet, P4SMA36A-E3/61 pinout, P4SMA36A-E3/61 application, or P4SMA36A-E3/61 equivalent, key selection criteria include unidirectional polarity, SMA (DO-214AC) package compatibility, clamping performance under 8.0 A transient surge, thermal resistance (RθJA = 120 °C/W), and AEC-Q101 qualification status for automotive-grade reliability.
Technical Context
The P4SMA36A-E3/61 operates as a unidirectional avalanche diode with glass-passivated junction, enabling fast response (<1 ns) to voltage transients and low incremental surge resistance. Its clamping action begins at VWM = 30.8 V and limits voltage to ≤49.9 V at IPPM = 8.0 A under standardized 10/1000 µs surge conditions.
It is rated for continuous power dissipation of 3.3 W at 50 °C on infinite heatsink, supports 40 A non-repetitive forward surge current (8.3 ms half-sine), and maintains operation across -65 °C to +150 °C junction temperature range - validated per J-STD-020 MSL Level 1 and RoHS-compliant (E3 suffix).
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 reliable overvoltage triggering |
| VWM | 30.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| VC @ IPPM | 49.9 V at 8.0 A - clamped voltage during 10/1000 µs transient, limiting downstream IC stress |
| PPPM | 400 W - peak surge power handling capability with standard lightning/surge waveform |
| IFSM | 40 A - single half-sine surge current rating (8.3 ms), supporting motor driver and relay coil suppression |
| RθJA | 120 °C/W - thermal resistance from junction to ambient, guiding PCB copper pad sizing for thermal management |
| TJ max | +150 °C - maximum junction temperature, enabling use in under-hood automotive environments |
Pinout & Package
Package: SMA (DO-214AC) - surface-mount, low-profile plastic case with matte tin-plated leads, UL 94 V-0 rated molding compound, and cathode band marking for polarity identification.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration |
| Cathode | Current exit terminal in forward bias; high-impedance terminal in reverse standby | Marked with band; connected to protected line (e.g., 36 V rail or CAN_H) to clamp positive transients |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges without derating below 91 V |
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| AEC-Q101 qualified (via HE3/HM3 variants) | Validated for automotive electronics including body control modules and ADAS sensor interfaces |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., inductive kickback from solenoids) |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting 3.3 V or 5 V analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output line and ground to clamp positive transients above VWM. Use Value: Limits voltage to ≤49.9 V during 8.0 A surge, preventing damage to ADC inputs and op-amps while maintaining signal integrity. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced surges and contact bounce. IC Role / Device Role / Timing Role: Standoff-rated TVS on input line to absorb repetitive 10/1000 µs transients from relay coils and solenoid drivers. Use Value: Withstands 400 W peak power and 40 A surge current, extending input circuit lifetime in factory automation environments. |
| Telecom Line Interface | Consumer Power Adapter Input |
|
Use Scenario: Secondary-side transient suppression on Ethernet PHY power rails (e.g., 3.3 V bias supply) exposed to ESD and crosstalk. IC Role / Device Role / Timing Role: Fast-response clamping device shunting surge energy to ground before it reaches sensitive PHY ICs. Use Value: Sub-1 ns response time and 49.9 V clamping ensure compliance with IEC 61000-4-2 Level 4 (±15 kV air) without signal distortion. |
Use Scenario: Input-stage overvoltage protection in AC/DC adapters for smart home devices, guarding against mains overvoltage and capacitor discharge spikes. IC Role / Device Role / Timing Role: Primary-side unidirectional TVS on DC bus (e.g., post-bridge rectifier) to limit transient propagation to controller ICs. Use Value: 30.8 V VWM aligns with 24–36 V adapter output ranges; 400 W rating handles sustained surge events per UL 1449. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A (Bourns) | Same VWM (30.8 V), higher PPPM (600 W), SMB package (DO-214AA) - larger footprint, lower RθJA (85 °C/W) | Better thermal performance in high-duty-cycle surge environments; requires PCB layout change | Select when higher surge margin or improved thermal derating is required and board space permits SMB footprint |
| 1.5SMC36A (ON Semiconductor) | Identical VBR/VWM/VC, same SMA package, but rated at 1500 W PPPM (10/1000 µs) - higher surge capacity with identical mounting | Supports more severe surge profiles (e.g., IEC 61000-4-5 Level 5); no layout change needed | Choose for enhanced surge immunity where existing SMA layout must be retained and higher PPPM is critical |
Compared with SMBJ36A and 1.5SMC36A, the P4SMA36A-E3/61 offers optimized cost-performance balance for mid-tier surge protection in space-constrained designs, with verified AEC-Q101 qualification path via HE3 suffix and industry-standard SMA footprint compatibility.
Availability
P4SMA36A-E3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply, RoHS compliance, and traceable sourcing.
Supply support for P4SMA36A-E3/61 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA series is part of Vishay's TRANSZORB® TVS portfolio, engineered for high-energy transient suppression in automotive, industrial, and communications systems where precision clamping and AEC-Q101 qualification are essential.
FAQ
What is the breakdown voltage tolerance of the P4SMA36A-E3/61?
The P4SMA36A-E3/61 has a specified breakdown voltage range of 34.2 V to 37.8 V at 1 mA test current, representing ±5% tolerance around the nominal 36 V rating. This tight VBR window ensures consistent clamping behavior across production lots and enables predictable system-level overvoltage protection design for the P4SMA36A-E3/61.
Is the P4SMA36A-E3/61 suitable for automotive applications?
Yes - while the base P4SMA36A-E3/61 is commercial-grade, Vishay offers AEC-Q101 qualified versions under ordering codes P4SMA36AHE3_A and P4SMA36AHM3_A. These variants undergo rigorous stress testing for automotive use, including temperature cycling, humidity bias, and surge endurance - making them appropriate for engine control, body electronics, and ADAS subsystems where the P4SMA36A-E3/61 serves as the foundational TVS reference.
What is the maximum clamping voltage of the P4SMA36A-E3/61 under surge conditions?
The P4SMA36A-E3/61 exhibits a maximum clamping voltage (VC) of 49.9 V at 8.0 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during transient events - a critical parameter for ensuring downstream ICs like microcontrollers and transceivers remain within absolute maximum ratings when using the P4SMA36A-E3/61.
Does the P4SMA36A-E3/61 have bidirectional capability?
No - the P4SMA36A-E3/61 is strictly unidirectional, indicated by the "A" suffix and cathode band marking. Bidirectional variants use the "CA" suffix (e.g., P4SMA36CA). The unidirectional configuration allows the P4SMA36A-E3/61 to provide lower leakage and sharper knee characteristics in DC-biased applications such as power rail protection, whereas bidirectional types are reserved for AC-coupled or floating signal lines.
What is the thermal resistance of the P4SMA36A-E3/61, and how does it affect PCB layout?
The P4SMA36A-E3/61 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. This value guides minimum copper area requirements: reducing thermal resistance requires increasing pad size or adding internal ground planes. For high-reliability applications, designers should verify junction temperature rise under worst-case power dissipation (3.3 W) to ensure the P4SMA36A-E3/61 stays within its 150 °C TJ limit.
P4SMA36A-E3/61 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-E3/61 FAQ
1.How can I place an order for P4SMA36A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA36A-E3/61 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 P4SMA36A-E3/61 reliable?
The price and inventory of P4SMA36A-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA36A-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA36A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA36A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA36A-E3/61?
P4SMA36A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA36A-E3/61 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 P4SMA36A-E3/61?
For technical support, including P4SMA36A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA36A-E3/61 requirements.
6.How does Aetrix verify that P4SMA36A-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA36A-E3/61 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 P4SMA36A-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA36A-E3/61?
All P4SMA36A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA36A-E3/61, 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 P4SMA36A-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA36A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA36A-E3/61 Tags
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