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Vishay General Semiconductor - Diodes Division P4SMA30A-E3/61
- Part No.:
- P4SMA30A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA30A-E3/61.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:136
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Product details
Overview
P4SMA30A-E3/61 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 breakdown voltage (VBR = 28.5–31.5 V at 1 mA), 41.4 V maximum clamping voltage (VC) 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 industrial and automotive electronics.
For engineers reviewing the P4SMA30A-E3/61 datasheet, P4SMA30A-E3/61 pinout, P4SMA30A-E3/61 application, or P4SMA30A-E3/61 equivalent, this device delivers verified transient suppression performance with AEC-Q101 qualification (via HE3/HM3 variants), RoHS-compliant matte tin plating, and MSL Level 1 moisture sensitivity - critical for high-reliability board-level ESD and surge protection design.
Technical Context
The P4SMA30A-E3/61 operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology for stable reverse breakdown and fast response (<1 ns). Its clamping action begins at VWM = 25.6 V (stand-off voltage), with <1 µA leakage at rated VWM, enabling low-power system compatibility.
Thermal performance is defined by RθJA = 120 °C/W (junction-to-ambient) and RθJL = 30 °C/W (junction-to-lead), supporting operation up to TJ = 150 °C. The device sustains 40 A non-repetitive forward surge (8.3 ms half-sine) and meets UL 94 V-0 flammability requirements in its molded SMA package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V at IT = 1 mA - defines precise avalanche onset window for predictable clamping threshold |
| VWM | 25.6 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 41.4 V at 9.7 A - clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 400 W - peak transient power handling capability under standard 10/1000 µs waveform |
| IPPM | 9.7 A - maximum non-repetitive peak pulse current the device safely conducts |
| TJ max. | 150 °C - maximum junction temperature, enabling use in under-hood automotive and industrial environments |
| Package | SMA (DO-214AC) - industry-standard SMD outline with 5.0 mm × 5.0 mm copper pad thermal requirement |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded epoxy case with matte tin-plated leads; cathode indicated by band marking; compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to circuit ground or lower-potential node in unidirectional TVS configuration |
| Cathode | Avalanche clamping terminal | Connected to protected line (e.g., VIN, signal trace); band-marked end carries transient energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without derating in standard layouts |
| Glass passivated junction | Ensures stable VBR tolerance (±5%), low leakage (<1 µA), and long-term reliability under thermal cycling |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without preconditioning or baking |
| AEC-Q101 qualified variants available | HE3/HM3 suffix versions meet automotive-grade stress testing for engine control, ADAS, and body electronics |
| UL 94 V-0 flammability rating | Validates safety-critical use in enclosed industrial enclosures and consumer power supplies |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and microcontroller I/O pins against inductive kickback from relay and solenoid switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed between MCU GPIO and external load interface to clamp transients before they reach silicon. Use Value: Limits voltage excursion to ≤41.4 V during 9.7 A surge, preventing latch-up or oxide damage in 3.3 V/5 V logic interfaces. |
Use Scenario: Surge suppression on LIN bus lines and sensor supply rails exposed to battery dump and load-dump events. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing 400 W pulses while maintaining <1 µA leakage at 25.6 V system rail. Use Value: Enables compliance with ISO 7637-2 Pulse 1/2a/5a without additional filtering, reducing BOM count. |
| Telecom Power Input Stages | Consumer Appliance Control Boards |
Use Scenario: Secondary-side overvoltage protection on 24 V DC input rails feeding PoE-powered equipment or base stations. IC Role / Device Role / Timing Role: Fast-clamping TVS shunting surge energy to chassis ground during lightning-induced coupling. Use Value: Sub-1 ns response ensures clamping occurs before transient propagates into DC-DC controllers or PMICs. |
Use Scenario: ESD and EFT protection on user-interface buttons, display backlight controls, and AC mains sensing circuits. IC Role / Device Role / Timing Role: Low-capacitance (typ. <100 pF at VWM) TVS preserving signal integrity on 10 kHz–1 MHz control lines. Use Value: Prevents false triggering or reset events caused by 8 kV contact ESD per 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 |
|---|---|---|---|
| SMBJ30A (Vishay) | Higher 600 W PPPM, larger SMB (DO-214AA) package, same VBR/VC specs | Requires larger PCB footprint; preferred where higher surge margin or legacy SMB layout exists | Select when >400 W surge headroom is required and board space permits 2.5 mm height increase |
| 1.5SMC33A (ON Semiconductor) | Same 400 W rating, identical VBR (28.5–31.5 V), but SMC (DO-214AB) package with 2.54 mm lead pitch | Not drop-in compatible due to different pad layout and thermal resistance (RθJA = 110 °C/W) | Choose for cost-sensitive industrial designs where SMC footprint is standardized and thermal margin allows |
Compared with SMBJ30A and 1.5SMC33A, the P4SMA30A-E3/61 offers optimal balance of compact SMA footprint, verified AEC-Q101 readiness via HE3 variants, and precise 25.6 V stand-off for 24 V nominal systems - making it ideal for space-constrained automotive and industrial modules requiring production-grade reliability.
Availability
P4SMA30A-E3/61 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power inputs, and consumer appliance control boards requiring stable component supply, RoHS compliance, and consistent surge performance across production batches.
Supply support for P4SMA30A-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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series was developed to deliver high-power transient suppression in ultra-compact surface-mount packages for automotive, industrial, and telecom applications where board space, thermal constraints, and AEC-Q101 compliance are critical.
FAQ
What is the maximum clamping voltage of the P4SMA30A-E3/61 under a 10/1000 µs surge?
The P4SMA30A-E3/61 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 Vishay document 88367 and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream components remain within safe operating area.
Is the P4SMA30A-E3/61 suitable for automotive applications?
The P4SMA30A-E3/61 itself is commercial-grade (E3 suffix), but Vishay offers AEC-Q101-qualified versions under HE3 and HM3 suffixes (e.g., P4SMA30AHE3_A). These variants undergo full automotive stress testing including temperature cycling, HTRB, and ESD - making them suitable for body electronics and infotainment systems. For automotive use, specify the HE3/HM3 variant rather than P4SMA30A-E3/61 directly.
What is the standoff voltage (VWM) of the P4SMA30A-E3/61, and why does it matter?
The P4SMA30A-E3/61 has a standoff voltage (VWM) of 25.6 V, meaning it remains in high-impedance state below this reverse voltage with leakage <1 µA. This parameter ensures minimal power loss and no interference with normal 24 V system operation while still allowing rapid transition to low-impedance clamping above 28.5 V breakdown - essential for protecting sensitive 3.3 V or 5 V logic powered from 24 V rails.
Does the P4SMA30A-E3/61 require special PCB layout considerations?
Yes - the P4SMA30A-E3/61 must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve its rated 400 W peak pulse power. Smaller pads cause thermal derating and reduced surge capability. Additionally, short, direct traces to ground plane and minimized loop area are required to preserve sub-1 ns response time and avoid inductive overshoot during clamping.
How does the P4SMA30A-E3/61 compare to bidirectional TVS diodes like P4SMA30CA?
The P4SMA30A-E3/61 is unidirectional and intended for DC line protection with polarity-aware placement (cathode to protected line), whereas P4SMA30CA is bidirectional and used on AC or floating signals. The P4SMA30A-E3/61 offers tighter VBR tolerance (±5%) and lower leakage at VWM versus bidirectional variants, but cannot suppress negative-going transients on positive rails without additional circuitry - selection depends strictly on signal polarity and topology.
P4SMA30A-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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA30A-E3/61 FAQ
1.How can I place an order for P4SMA30A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA30A-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 P4SMA30A-E3/61 reliable?
The price and inventory of P4SMA30A-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 P4SMA30A-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA30A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA30A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA30A-E3/61?
P4SMA30A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA30A-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 P4SMA30A-E3/61?
For technical support, including P4SMA30A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA30A-E3/61 requirements.
6.How does Aetrix verify that P4SMA30A-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA30A-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 P4SMA30A-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA30A-E3/61?
All P4SMA30A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA30A-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 P4SMA30A-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA30A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA30A-E3/61 Tags
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