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Vishay General Semiconductor - Diodes Division P4SMA30AHE3/61
- Part No.:
- P4SMA30AHE3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA30AHE3/61.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA30AHE3/61 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 30 V standoff voltage (VWM), 31.5 V maximum breakdown voltage (VBR), 41.4 V clamping voltage at 9.7 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 automotive and industrial control systems.
For engineers reviewing the P4SMA30AHE3/61 datasheet, P4SMA30AHE3/61 pinout, P4SMA30AHE3/61 application, or P4SMA30AHE3/61 equivalent, key selection criteria include clamping performance under 10/1000 µs surge, AEC-Q101 qualification status, thermal resistance (RθJA = 120 °C/W), unidirectional polarity marking, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
The P4SMA30AHE3/61 operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its 28.5–31.5 V breakdown range at 1 mA test current. Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, critical for suppressing ESD and inductive switching spikes.
It is rated for 400 W peak pulse power (derated to 300 W above 91 V), 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. The device meets MSL Level 1 per J-STD-020 and is AEC-Q101 qualified for automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 25.6 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 28.5 V min / 31.5 V max at 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transients |
| VC (Clamping Voltage) | 41.4 V at 9.7 A IPPM - Peak voltage seen by protected circuit during 10/1000 µs surge; determines downstream component stress |
| PPPM (Peak Pulse Power) | 400 W - Energy-handling capability under standard 10/1000 µs waveform; validates protection against IEC 61000-4-5 surges |
| ID (Reverse Leakage) | 1.0 µA max at 25.6 V - Low leakage preserves system efficiency and prevents false triggering in high-impedance circuits |
| TJ max | +150 °C - Enables reliable operation in under-hood automotive and industrial environments without derating |
| RθJA | 120 °C/W - Thermal resistance from junction to ambient; informs PCB pad layout (0.2" × 0.2" Cu required for full rating) |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads; cathode indicated by band on body; RoHS-compliant and AEC-Q101 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge (e.g., reverse battery protection) |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side; initiates reverse-biased clamping when transient exceeds VWM |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress requirements |
| 400 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV) surges on 50 Ω source impedance without degradation |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift in harsh environments |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C peak without moisture-induced popcorning or delamination |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage exposure to protected ICs compared to competing TVS devices with higher ratios |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting microcontroller GPIOs and CAN transceiver power rails from load-dump and jump-start transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12 V supply and ground, clamping spikes within nanoseconds to limit voltage to <42 V. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic ICs while maintaining AEC-Q101 compliance for OEM production. |
Use Scenario: Shielding 24 V DC digital input channels from inductive kickback caused by solenoid or relay coil de-energization. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to shunt >100 V transients before reaching optocoupler or Schmitt trigger input stage. Use Value: Eliminates need for external RC snubbers; reduces BOM count and improves long-term reliability in factory automation equipment. |
| Consumer Appliance Motor Drive Board | Telecom Base Station Sensor Interface |
Use Scenario: Safeguarding MCU analog inputs monitoring motor current feedback against commutation noise and ESD events. IC Role / Device Role / Timing Role: Low-capacitance TVS mounted directly at connector entry point to suppress sub-100 ns ESD pulses before reaching ADC front-end. Use Value: Maintains signal integrity in 12-bit current sensing while meeting IEC 61000-4-2 Level 4 (8 kV contact) immunity requirements. |
Use Scenario: Protecting RS-485 transceiver data lines and auxiliary 5 V bias rails from lightning-induced surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Unidirectional TVS deployed on both VCC and differential bus lines to clamp common-mode and differential transients simultaneously. Use Value: Enables single-device protection architecture compliant with ITU-T K.20/21 standards without compromising data rate or signal rise time. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A-E3/61 | Same SMA package, 400 W PPPM, but VBR = 33.3–36.8 V; higher clamping voltage (48.4 V) and 10× higher ID (10 µA) | Less suitable for low-voltage tolerant circuits due to higher VC; better for higher-energy surges where tighter VBR tolerance is not critical | Select P4SMA30AHE3/61 when precise 30 V standoff and lower clamping (41.4 V) are required for 3.3 V/5 V rail protection |
| 1.5SMC33A | Higher-power SMC package (1500 W), same VWM (28.2 V); larger footprint, RθJA = 15 °C/W, no AEC-Q101 qualification | Used in non-automotive industrial power supplies where board space allows and automotive qualification is unnecessary | Choose P4SMA30AHE3/61 for space-constrained automotive modules requiring AEC-Q101 and SMT compatibility |
Compared with SMAJ30A-E3/61 and 1.5SMC33A, the P4SMA30AHE3/61 delivers tighter VBR tolerance (±5%), lower clamping voltage, and automotive qualification in a compact SMA package - making it optimal for cost-sensitive, high-volume automotive electronics where PCB real estate and qualification compliance are decisive.
Availability
P4SMA30AHE3/61 is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and consumer appliance motor control systems requiring stable component supply and AEC-Q101 traceability.
Supply support for P4SMA30AHE3/61 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, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series targets high-volume transient suppression in automotive, industrial, and consumer applications, combining AEC-Q101 qualification, low-profile packaging, and consistent clamping performance across voltage grades.
FAQ
What is the clamping voltage of the P4SMA30AHE3/61 at its rated peak pulse current?
The P4SMA30AHE3/61 has a maximum clamping voltage (VC) of 41.4 V at 9.7 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88367 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is the P4SMA30AHE3/61 qualified for automotive applications?
Yes, the P4SMA30AHE3/61 is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's P4SMA Series datasheet (Rev. 09-Jan-2024). This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, making the P4SMA30AHE3/61 suitable for under-hood and body-control module deployments in passenger vehicles and commercial fleets.
What does the "HE3" suffix indicate in P4SMA30AHE3/61?
The "HE3" suffix in P4SMA30AHE3/61 denotes RoHS-compliant construction with AEC-Q101 qualification and matte tin-plated leads meeting J-STD-002 solderability standards. It distinguishes this variant from commercial-grade "E3" parts and halogen-free "HM3" versions - confirming that the P4SMA30AHE3/61 meets automotive reliability and environmental compliance requirements out of the box.
Can the P4SMA30AHE3/61 be used in bidirectional configurations?
No, the P4SMA30AHE3/61 is a unidirectional TVS diode, as indicated by the "A" (not "CA") suffix and absence of bidirectional electrical characteristics in its row of the Vishay datasheet table. For bidirectional protection, engineers must select a part with "CA" suffix (e.g., P4SMA30CA), which exhibits symmetrical clamping in both polarities - the P4SMA30AHE3/61 only clamps in reverse bias and conducts forward current like a standard diode.
What PCB pad layout is required to achieve the full 400 W peak pulse power rating for the P4SMA30AHE3/61?
To achieve the full 400 W peak pulse power rating, the P4SMA30AHE3/61 must be mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in Note (2) of the Maximum Ratings table and Figure 1 of the Vishay datasheet. Smaller pads result in thermal derating - for example, at 75 °C ambient, the device delivers only ~250 W unless adequate copper area and thermal vias are implemented to manage junction temperature rise.
P4SMA30AHE3/61 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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 9.7A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA30AHE3/61 FAQ
1.How can I place an order for P4SMA30AHE3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA30AHE3/61 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 P4SMA30AHE3/61 reliable?
The price and inventory of P4SMA30AHE3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA30AHE3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA30AHE3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA30AHE3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA30AHE3/61?
P4SMA30AHE3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA30AHE3/61 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 P4SMA30AHE3/61?
For technical support, including P4SMA30AHE3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA30AHE3/61 requirements.
6.How does Aetrix verify that P4SMA30AHE3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA30AHE3/61 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 P4SMA30AHE3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA30AHE3/61?
All P4SMA30AHE3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA30AHE3/61, 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 P4SMA30AHE3/61 part is unused and in its original packaging.
Return procedure for P4SMA30AHE3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA30AHE3/61 Tags
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