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Vishay General Semiconductor - Diodes Division P4SMA36A-E3/5A
- Part No.:
- P4SMA36A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA36A-E3/5A.pdf
- Description:
- TVS DIODE 30.8VWM 49.9VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,190
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Product details
Overview
P4SMA36A-E3/5A 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 34.2 V minimum breakdown voltage (VBR), 30.8 V maximum standoff voltage (VWM), 49.9 V clamping voltage (VC) at 8.0 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial and automotive electronics.
For engineers reviewing the P4SMA36A-E3/5A datasheet, P4SMA36A-E3/5A pinout, P4SMA36A-E3/5A application, or P4SMA36A-E3/5A equivalent, key selection criteria include unidirectional polarity, RoHS-compliant matte tin plating, MSL Level 1 moisture sensitivity, AEC-Q101 qualification eligibility (via HE3/HM3 variants), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
The P4SMA36A-E3/5A operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology for stable breakdown behavior and low incremental surge resistance. Its clamping action begins at VWM = 30.8 V and fully engages at VBR = 34.2–37.8 V (tested at 1.0 mA), delivering predictable overvoltage protection during fast transients.
Thermally, it exhibits RθJA = 120 °C/W (junction-to-ambient) and RθJL = 30 °C/W (junction-to-lead), supporting continuous power dissipation of 3.3 W at TA = 50 °C. It withstands 40 A non-repetitive forward surge (8.3 ms half-sine) and operates across –65 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 30.8 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown) | 34.2–37.8 V at 1.0 mA - Avalanche conduction onset range; ensures reliable triggering under ESD or inductive switching events |
| VC (Clamping) | 49.9 V at IPPM = 8.0 A - Peak voltage seen by protected circuit during 400 W transient; limits stress on downstream components |
| PPPM | 400 W (10/1000 µs) - Surge energy handling capacity; sufficient for IEC 61000-4-5 Level 3 (1 kV line-to-line) protection |
| IFSM | 40 A (8.3 ms half-sine) - Robustness against power rail surges; supports motor drive and relay coil snubbing |
| TJ max | +150 °C - Enables use in under-hood automotive and high-temperature industrial environments without derating |
| Package | SMA (DO-214AC) - Low-profile SMT footprint (5.28 mm × 4.50 mm); compatible with standard reflow profiles and J-STD-020 MSL Level 1 |
Pinout & Package
SMA (DO-214AC) package: surface-mount, molded epoxy case with matte tin-plated leads; cathode indicated by band marking; compliant with UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal (reverse-biased operation) | Connected to protected line side; conducts during transient to shunt energy to ground |
| Cathode | Current exit terminal (reverse-biased operation) | Connected to system ground or low-impedance return path; marked with band for orientation |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity exposure |
| 400 W peak pulse power (10/1000 µs) | Provides robust protection against lightning-induced surges and inductive load switching transients |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (<1 ns response time) |
| RoHS-compliant, matte tin plating | Enables lead-free reflow soldering per J-STD-002 and eliminates whisker risk per JESD 201 Class 2 |
| AEC-Q101 qualification path | Supports automotive-grade sourcing via P4SMA36AHE3_A variant; validated for harsh environment reliability |
Applications
| Industrial Motor Control | Automotive Sensor Interface |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O pins against back-EMF from solenoids and brushed DC motors. IC Role / Device Role: Unidirectional TVS placed between MOSFET gate and source, or across MCU GPIO and chassis ground. Use Value: Clamps 49.9 V transients at 8.0 A, preventing latch-up or oxide damage in 3.3 V/5 V logic circuits. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors from load dump and jump-start events in 12 V vehicle systems. IC Role / Device Role: Standoff-rated TVS on sensor supply line (VWM = 30.8 V > nominal 12 V + tolerance). Use Value: Withstands 40 A surge current and operates up to +150 °C, meeting ISO 7637-2 Pulse 5a requirements. |
| Telecom Power Supply Input | Consumer USB Port Protection |
Use Scenario: Secondary-side overvoltage suppression on 24 V/48 V telecom rectifier outputs exposed to lightning-induced surges. IC Role / Device Role: Unidirectional TVS mounted between output rail and ground, upstream of DC-DC converters. Use Value: 400 W pulse rating handles IEC 61000-4-5 combination wave (2 Ω source) without degradation. |
Use Scenario: ESD and cable discharge protection on VBUS line of USB 2.0 host ports in set-top boxes and smart displays. IC Role / Device Role: Standoff-limited TVS (VWM = 30.8 V) placed after fuse, before USB controller's overvoltage lockout. Use Value: Fast response and low capacitance (<50 pF at VWM) prevent signal integrity loss while passing ±15 kV contact ESD (IEC 61000-4-2). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A (Bourns) | Same VWM/VBR/VC specs but SMB package (DO-214AA); 600 W PPPM; higher RθJA = 140 °C/W | Higher power handling but larger footprint; less suitable for dense layouts where SMA is space-constrained | Select when higher surge margin is required and board area allows SMB size (5.3 mm × 4.6 mm vs. SMA's 5.28 mm × 4.50 mm) |
| 1.5SMC36A (ON Semiconductor) | Identical electrical specs and SMA package; 1.5 kW PPPM rating; same 30.8 V VWM, 49.9 V VC, but higher IPPM = 30.1 A | Higher surge current capability suits applications with repetitive transients (e.g., industrial PLC I/O modules) | Prefer when system-level testing shows repeated 10/1000 µs surges exceeding 8 A; verify thermal design for 1.5 kW duty cycle |
Compared with P4SMA36A-E3/5A, SMBJ36A offers greater surge headroom in a slightly larger package, while 1.5SMC36A delivers triple the peak pulse current in identical form factor - enabling longer transient suppression duration or higher repetition rates without thermal runaway.
Availability
P4SMA36A-E3/5A is available at Aetrix Electronics and suitable for industrial motor control, automotive sensor interface, telecom power supply input, and consumer USB port protection requiring stable component supply, RoHS compliance, and AEC-Q101 qualification readiness.
Supply support for P4SMA36A-E3/5A 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 reliability, efficiency, and application-specific performance.
The P4SMA Series is engineered for cost-effective, high-volume transient suppression in space-constrained SMT designs - targeting automotive, industrial, and telecom systems where consistent clamping, low leakage, and AEC-Q101 scalability are critical.
FAQ
What is the maximum clamping voltage of the P4SMA36A-E3/5A under rated surge conditions?
The P4SMA36A-E3/5A has a maximum clamping voltage (VC) of 49.9 V when subjected to its rated 8.0 A peak pulse current (IPPM) using a 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88367 and defines the upper voltage limit imposed on protected circuitry during transient events. The P4SMA36A-E3/5A maintains this clamping performance across its full operating temperature range.
Is the P4SMA36A-E3/5A suitable for automotive applications?
The P4SMA36A-E3/5A itself is RoHS-compliant and manufactured to commercial-grade specifications, but Vishay offers the AEC-Q101-qualified variant P4SMA36AHE3_A for automotive use. The P4SMA36A-E3/5A shares identical electrical characteristics and SMA packaging with the HE3 version, making it suitable for prototyping and non-safety-critical automotive subsystems where qualification is not mandated. Full AEC-Q101 compliance requires the HE3 suffix.
What does the "-E3/5A" suffix indicate in P4SMA36A-E3/5A?
The "-E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads, while "/5A" specifies packaging in 13-inch diameter plastic tape and reel containing 7500 units. This differs from "/61", which indicates 7-inch reel with 1800 units. The P4SMA36A-E3/5A is optimized for high-volume SMT assembly lines requiring large reels and lead-free process compatibility.
How does the P4SMA36A-E3/5A compare to bidirectional TVS diodes like P4SMA36CA?
The P4SMA36A-E3/5A is unidirectional and intended for DC line protection where polarity is fixed (e.g., VCC-to-ground), whereas P4SMA36CA is bidirectional for AC or floating signal lines. The P4SMA36A-E3/5A has lower leakage at VWM (1.0 µA vs. 1.0 µA for CA), identical VBR range, and same PPPM. Use P4SMA36A-E3/5A when protecting polarized rails; choose P4SMA36CA only for differential or AC-coupled paths.
What PCB layout guidance applies to the P4SMA36A-E3/5A for optimal transient suppression?
For effective operation, the P4SMA36A-E3/5A must be mounted on minimum 5.0 mm × 5.0 mm copper pads per terminal to achieve its rated 400 W pulse power. Short, low-inductance traces to ground are essential - avoid vias in the TVS return path. Thermal relief should be minimized to maintain heat dissipation; the device's RθJA = 120 °C/W assumes this pad layout. The P4SMA36A-E3/5A cathode band must align with ground net routing.
P4SMA36A-E3/5A 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-E3/5A FAQ
1.How can I place an order for P4SMA36A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA36A-E3/5A 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-E3/5A reliable?
The price and inventory of P4SMA36A-E3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA36A-E3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA36A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA36A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA36A-E3/5A?
P4SMA36A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA36A-E3/5A 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-E3/5A?
For technical support, including P4SMA36A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA36A-E3/5A requirements.
6.How does Aetrix verify that P4SMA36A-E3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA36A-E3/5A 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-E3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA36A-E3/5A?
All P4SMA36A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA36A-E3/5A, 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-E3/5A part is unused and in its original packaging.
Return procedure for P4SMA36A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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