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Vishay General Semiconductor - Diodes Division P4SMA47CA-E3/5A
- Part No.:
- P4SMA47CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA47CA-E3/5A.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,190
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Product details
Overview
P4SMA47CA-E3/5A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 47 V breakdown voltage (VBR = 44.7–49.4 V at IT = 1.0 mA), 64.8 V maximum clamping voltage (VC) at 6.2 A peak pulse current (IPPM), and 400 W peak pulse power (10/1000 µs waveform). It protects signal lines and power rails in sensor interfaces, industrial I/O, and telecom front-ends against ESD and inductive switching transients.
For engineers reviewing the P4SMA47CA-E3/5A datasheet, P4SMA47CA-E3/5A pinout, P4SMA47CA-E3/5A application, or P4SMA47CA-E3/5A equivalent, this device delivers verified bidirectional clamping performance, RoHS-compliant matte tin terminations, MSL Level 1 moisture sensitivity, and AEC-Q101 qualification readiness - critical for automotive-grade transient protection design-in and long-term supply assurance.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR, VWM, and VC specifications in forward and reverse directions. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM = 40.2 V) and fast response time (<1.0 ns), enabling effective suppression of sub-microsecond transients induced by relay switching or ESD events.
The device is rated for 3.3 W steady-state power dissipation at TA = 50 °C and supports junction temperatures from –65 °C to +150 °C. Thermal resistance is RθJA = 120 °C/W (typ.) on minimum recommended pad layout, and it meets UL 94 V-0 flammability requirements in its molded SMA package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 44.7–49.4 V at 1.0 mA test current - defines precise voltage threshold where clamping initiates under transient stress |
| Stand-off Voltage VWM | 40.2 V maximum - ensures no conduction during normal 40 V rail operation, preserving signal integrity |
| Clamping Voltage VC | 64.8 V at 6.2 A IPPM - limits downstream voltage excursion to safe levels for 3.3 V/5 V logic and analog ICs |
| Peak Pulse Power PPPM | 400 W (10/1000 µs waveform) - sustains high-energy surges without failure in industrial surge environments |
| Maximum Leakage ID | <1.0 µA at VWM - minimizes standby power loss and avoids false triggering in low-current sensor circuits |
| Operating Temperature | –65 °C to +150 °C - supports deployment in under-hood automotive, outdoor telecom, and factory-floor industrial settings |
| Package | SMA (DO-214AC) - surface-mount footprint compatible with automated assembly and provides thermal path via copper pads |
Pinout & Package
SMA (DO-214AC) package: 2-terminal, symmetrical bidirectional device with no polarity marking; terminals are matte tin-plated for J-STD-002 solderability and JESD22-B102 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient current path | Either terminal serves as input/output - bidirectional conduction enables single-device protection on AC-coupled or floating lines |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-component protection of AC signals, differential buses (e.g., RS-485), and ungrounded sensor outputs without polarity concerns |
| 400 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) when mounted per recommended 5.0 mm × 5.0 mm copper pads |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage stress on protected ICs - critical for safeguarding 48 V CAN FD or 3.3 V microcontroller I/O |
| AEC-Q101 qualified option | Available as P4SMA47CAHE3_A variant - validated for automotive powertrain and body electronics applications requiring reliability certification |
| MSL Level 1, 260 °C reflow | Supports standard lead-free SMT processes without pre-baking, reducing manufacturing complexity and cost |
Applications
| Industrial Sensor Interface | Automotive Body Control Module |
|---|---|
Use Scenario: Protecting 4–20 mA current-loop sensors and analog voltage outputs from load dump and relay-induced spikes in factory automation cabinets. IC Role / Device Role / Timing Role: Bidirectional TVS placed across sensor output pins to clamp transients before they reach ADC inputs or isolation amplifiers. Use Value: Prevents ADC saturation and firmware lockup by limiting voltage excursions to ≤64.8 V during 400 W surges, maintaining system uptime. |
Use Scenario: Safeguarding LIN bus transceivers and door module microcontrollers against battery reverse connection and jump-start transients. IC Role / Device Role / Timing Role: Placed at LIN physical layer input to absorb ±100 V/500 ms transients defined in ISO 16750-2. Use Value: Enables compliance with automotive electrical stress tests using a single RoHS-compliant, AEC-Q101-ready component. |
| Telecom Line Card Protection | Consumer USB-C Port ESD |
Use Scenario: Shielding Ethernet PHY magnetics and PoE-powered auxiliary ports from lightning-induced surges in outdoor base stations. IC Role / Device Role / Timing Role: Mounted at connector entry point to shunt common-mode transients before reaching Ethernet transformer center taps. Use Value: Delivers 400 W surge handling with <1 ns response, meeting GR-1089-CORE Level 3 requirements for telecom infrastructure. |
Use Scenario: Providing secondary-level ESD protection on USB-C CC and VCONN lines in portable devices exposed to human-body-model discharges. IC Role / Device Role / Timing Role: Positioned after primary polymer-based TVS to handle residual fast-rising ESD pulses (IEC 61000-4-2 ±15 kV). Use Value: Clamps ESD events to <65 V within nanoseconds, preventing gate oxide damage in USB-C controller FETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ47CA | Same VBR range (44.7–49.4 V) but SMB package (DO-214AA); 600 W PPPM rating; higher IPPM (10.3 A) | Requires larger PCB footprint; better suited for higher-energy surge environments (e.g., AC mains input stages) | Select when board space allows and surge energy exceeds 400 W - not drop-in due to different pad layout and thermal profile |
| 1.5KE47CA | Through-hole DO-201 package; same VBR and VC; 1500 W PPPM; higher thermal mass but incompatible with SMT lines | Used in legacy designs or high-reliability power supplies where manual assembly or wave soldering is acceptable | Choose only for through-hole prototyping or repair; not suitable for new SMT production due to assembly incompatibility |
Compared with SMBJ47CA and 1.5KE47CA, the P4SMA47CA-E3/5A offers optimal balance of compact SMA footprint, 400 W surge capability, and full SMT manufacturability - making it the preferred choice for space-constrained industrial and automotive modules requiring automated placement and RoHS compliance.
Availability
P4SMA47CA-E3/5A is available at Aetrix Electronics and suitable for industrial sensor interfaces, automotive body electronics, telecom line cards, and consumer USB-C port protection requiring stable component supply and long-term lifecycle support.
Supply support for P4SMA47CA-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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series is engineered for robust transient suppression in harsh environments - designed to meet industrial, automotive, and telecom surge immunity standards while supporting high-volume automated assembly.
FAQ
What does the "CA" suffix indicate in P4SMA47CA-E3/5A?
The "CA" suffix in P4SMA47CA-E3/5A denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage clamping in both polarities. This eliminates polarity concerns during placement and enables use on AC-coupled lines, differential buses, or floating sensor outputs - unlike unidirectional variants (e.g., P4SMA47A) that require cathode alignment.
Is P4SMA47CA-E3/5A RoHS-compliant and halogen-free?
Yes, P4SMA47CA-E3/5A carries the "E3" suffix, indicating it is RoHS-compliant and manufactured to commercial-grade specifications. It is not halogen-free; for halogen-free compliance, the "M3" variant (e.g., P4SMA47CA-M3/5A) must be selected - both meet JESD201 Class 2 whisker resistance and J-STD-002 solderability standards.
What is the maximum clamping voltage of P4SMA47CA-E3/5A under surge conditions?
The maximum clamping voltage (VC) of P4SMA47CA-E3/5A is 64.8 V at 6.2 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is guaranteed across temperature and represents the upper limit of voltage seen by downstream circuitry during a standardized surge event - critical for ensuring compatibility with 48 V systems and 3.3 V/5 V logic interfaces.
Can P4SMA47CA-E3/5A be used in automotive applications?
P4SMA47CA-E3/5A itself is commercial-grade, but the P4SMA47CAHE3_A variant is AEC-Q101 qualified for automotive use. For body control modules or infotainment systems requiring certified reliability, engineers should specify the HE3 suffix version; the E3/5A part may be used in non-safety-critical automotive prototypes or aftermarket designs pending internal validation.
What is the thermal resistance and power derating behavior of P4SMA47CA-E3/5A?
P4SMA47CA-E3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on minimum recommended 5.0 mm × 5.0 mm copper pads. Its 3.3 W steady-state power dissipation is rated at TA = 50 °C and derates linearly above that temperature - dropping to ~2.0 W at 85 °C ambient - ensuring safe operation in enclosed industrial enclosures without forced airflow.
P4SMA47CA-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.8V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- 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)
P4SMA47CA-E3/5A FAQ
1.How can I place an order for P4SMA47CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA47CA-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 P4SMA47CA-E3/5A reliable?
The price and inventory of P4SMA47CA-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 P4SMA47CA-E3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA47CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA47CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA47CA-E3/5A?
P4SMA47CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA47CA-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 P4SMA47CA-E3/5A?
For technical support, including P4SMA47CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA47CA-E3/5A requirements.
6.How does Aetrix verify that P4SMA47CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA47CA-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 P4SMA47CA-E3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA47CA-E3/5A?
All P4SMA47CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA47CA-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 P4SMA47CA-E3/5A part is unused and in its original packaging.
Return procedure for P4SMA47CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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