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Vishay General Semiconductor - Diodes Division P4SMA7.5A-E3/5A
- Part No.:
- P4SMA7.5A-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA7.5A-E3/5A.pdf
- Description:
- TVS DIODE 6.4VWM 11.3VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,703
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Product details
Overview
P4SMA7.5A-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 7.13 V minimum breakdown voltage (VBR), 6.40 V standoff voltage (VWM), 11.3 V maximum clamping voltage at 35.4 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 power supplies.
For engineers reviewing the P4SMA7.5A-E3/5A datasheet, P4SMA7.5A-E3/5A pinout, P4SMA7.5A-E3/5A application, or P4SMA7.5A-E3/5A equivalent, key selection considerations include its unidirectional polarity, 150 °C max junction temperature, RoHS-compliant matte tin-plated terminals, MSL Level 1 moisture sensitivity, and suitability for automated SMT placement in high-reliability consumer and telecom surge protection circuits.
Technical Context
The P4SMA7.5A-E3/5A operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its 7.13–7.88 V breakdown range at 10 mA test current. Its low incremental surge resistance and fast response time enable effective suppression of ESD and inductive switching transients before downstream components are damaged.
It delivers 400 W peak pulse power (derated above 25 °C per Fig. 2) with 35.4 A IPPM under 10/1000 µs waveform, clamping to ≤11.3 V while maintaining 500 µA max reverse leakage at 6.40 V standoff. Thermal resistance is 120 °C/W junction-to-ambient on standard 5.0 mm × 5.0 mm copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.13 V / 7.88 V at 10 mA - defines precise avalanche onset threshold for reliable overvoltage triggering |
| VWM | 6.40 V - maximum continuous reverse operating voltage without significant leakage |
| IPPM | 35.4 A (10/1000 µs) - peak transient current it safely shunts before clamping voltage rises beyond 11.3 V |
| VC | 11.3 V - clamped voltage across device during 35.4 A transient, limiting stress on protected circuitry |
| PPPM | 400 W - peak pulse power handling capability under standardized surge waveform |
| TJ max | 150 °C - maximum junction temperature enabling operation in hot industrial environments |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 5.28 mm length and 2.79 mm height |
Pinout & Package
Package: SMA (DO-214AC), molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; cathode indicated by band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration |
| Cathode | Avalanche conduction terminal | Marked with band; connected to protected line (e.g., VIN, signal trace) 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 (4 kV/2 Ω) on 12 V rails |
| Low clamping ratio (VC/VBR ≈ 1.59) | Minimizes overvoltage overshoot during transient events, preserving margin for 5 V or 3.3 V logic |
| MSL Level 1, 260 °C reflow compatible | Supports lead-free assembly without preconditioning or special handling requirements |
| RoHS-compliant, commercial-grade E3 suffix | Meets global environmental compliance mandates with no halogen restrictions or exemptions |
| 150 °C maximum junction temperature | Allows deployment in enclosed enclosures or near heat-generating components without derating |
Applications
| Industrial Power Supply Protection | Automotive Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V input rails in programmable logic controllers (PLCs) against load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and ground to clamp transients before they reach DC-DC converters and microcontrollers. Use Value: Limits voltage to ≤11.3 V during 35.4 A surges, preventing latch-up or gate oxide damage in downstream 12 V tolerant ICs. |
Use Scenario: Safeguarding CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control units. IC Role / Device Role / Timing Role: Standoff-connected TVS on signal lines to absorb ESD (IEC 61000-4-2 ±8 kV contact) and ISO 7637-2 pulse 1/2a transients. Use Value: Maintains 6.40 V working voltage while clamping to 11.3 V, ensuring signal integrity remains within transceiver common-mode range. |
| Telecom Line Card Surge Protection | Consumer USB Power Delivery Protection |
Use Scenario: Front-end protection on AC/DC adapter inputs and Ethernet PoE injectors exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC outputs to suppress coupled transients from primary-side isolation gaps. Use Value: Withstands repetitive 400 W pulses at 0.01% duty cycle, supporting long-term reliability in outdoor telecom infrastructure. |
Use Scenario: Input-stage transient suppression on USB-C PD port VBUS lines (5–20 V) in portable monitors and docking stations. IC Role / Device Role / Timing Role: Unidirectional clamping device between VBUS and GND to limit overvoltage during hot-plug or cable fault events. Use Value: 7.13 V VBR ensures activation before USB PD 5 V nominal exceeds safe thresholds, while 11.3 V VC stays below 15 V OVP limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ7.0A | Higher 7.0 V VWM, 7.78 V VBR min, 12.5 V VC at 32.1 A; SMB package (larger footprint, higher thermal mass) | Lower clamping ratio but larger PCB area required; better for higher-energy transients where layout allows | Select SMBJ7.0A if board space permits and higher thermal dissipation is needed for sustained surge duty cycles |
| 1.5SMC7.5A | Same VWM/VBR/VC specs but in larger SMC (DO-214AB) package; 1500 W peak power rating | Over-specified for 400 W needs; suited for legacy designs requiring backward-compatible footprint upgrade | Choose 1.5SMC7.5A only when upgrading from older SMC-based designs or when higher surge margin is explicitly required |
Compared with SMBJ7.0A and 1.5SMC7.5A, the P4SMA7.5A-E3/5A offers optimal balance of compact SMA footprint, precise 6.40 V standoff, and verified 400 W surge capability - making it ideal for space-constrained, high-volume SMT applications where thermal and electrical margins align with IEC 61000-4-5 Class B requirements.
Availability
P4SMA7.5A-E3/5A is available at Aetrix Electronics and suitable for industrial power supply protection, automotive sensor interface hardening, and telecom line card surge suppression requiring stable component supply, full traceability, and consistent RoHS-compliant manufacturing.
Supply support for P4SMA7.5A-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 P4SMA7.5A-E3/5A belongs to Vishay's TRANSZORB® TVS family, engineered specifically for high-speed, high-energy transient suppression in surface-mount power and signal line protection across automotive, industrial, and communications systems.
FAQ
What is the maximum clamping voltage of the P4SMA7.5A-E3/5A under standard test conditions?
The P4SMA7.5A-E3/5A has a maximum clamping voltage (VC) of 11.3 V when subjected to its rated peak pulse current of 35.4 A using the 10/1000 µs waveform. This value is measured at TA = 25 °C with devices mounted on 0.2" × 0.2" copper pads per JEDEC standards. The P4SMA7.5A-E3/5A maintains this clamping performance across its specified operating temperature range, ensuring predictable overvoltage protection in real-world deployments.
Is the P4SMA7.5A-E3/5A suitable for automotive applications?
The P4SMA7.5A-E3/5A is RoHS-compliant and qualified to AEC-Q101 when ordered with HE3 or HM3 suffixes (e.g., P4SMA7.5AHE3_A). The base P4SMA7.5A-E3/5A variant is commercial-grade and not AEC-Q101 certified. For automotive use, specify the HE3 suffix version - the P4SMA7.5A-E3/5A itself does not carry automotive qualification unless explicitly ordered with the appropriate suffix and revision code.
What is the standoff voltage (VWM) of the P4SMA7.5A-E3/5A, and how does it relate to system operating voltage?
The P4SMA7.5A-E3/5A has a standoff voltage (VWM) of 6.40 V, meaning it remains non-conductive up to this reverse voltage level with ≤500 µA leakage current. This allows safe integration on 5 V systems where normal operating voltage must stay below VWM to avoid standby power loss or false triggering. The P4SMA7.5A-E3/5A is therefore well-suited for protecting 5 V logic rails, USB interfaces, and low-voltage sensor outputs.
Does the P4SMA7.5A-E3/5A have bidirectional capability?
No, the P4SMA7.5A-E3/5A is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. Bidirectional variants use the "CA" suffix (e.g., P4SMA7.5CA). The P4SMA7.5A-E3/5A conducts only during positive transients on its cathode terminal relative to anode - it does not suppress negative-going surges on the same node. For AC or bipolar signal line protection, a bidirectional part must be selected instead.
What packaging format is used for the P4SMA7.5A-E3/5A, and what is the reel quantity?
The P4SMA7.5A-E3/5A is supplied in 13-inch diameter plastic tape and reel format with a standard quantity of 7500 pieces per reel, designated by the "/5A" suffix in the ordering code. This packaging supports high-speed automated pick-and-place assembly and is compatible with industry-standard SMT feeders. The P4SMA7.5A-E3/5A uses matte tin-plated leads and meets J-STD-002 solderability requirements.
P4SMA7.5A-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):
- 6.4V
- Voltage - Breakdown (Min):
- 7.13V
- Voltage - Clamping (Max) @ Ipp:
- 11.3V
- Current - Peak Pulse (10/1000µs):
- 35.4A
- 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)
P4SMA7.5A-E3/5A FAQ
1.How can I place an order for P4SMA7.5A-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA7.5A-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 P4SMA7.5A-E3/5A reliable?
The price and inventory of P4SMA7.5A-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 P4SMA7.5A-E3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA7.5A-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA7.5A-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA7.5A-E3/5A?
P4SMA7.5A-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA7.5A-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 P4SMA7.5A-E3/5A?
For technical support, including P4SMA7.5A-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA7.5A-E3/5A requirements.
6.How does Aetrix verify that P4SMA7.5A-E3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA7.5A-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 P4SMA7.5A-E3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA7.5A-E3/5A?
All P4SMA7.5A-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA7.5A-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 P4SMA7.5A-E3/5A part is unused and in its original packaging.
Return procedure for P4SMA7.5A-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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