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Vishay General Semiconductor - Diodes Division P4SMA10CAHE3/5A
- Part No.:
- P4SMA10CAHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA10CAHE3/5A.pdf
- Description:
- TVS DIODE 8.55VWM 14.5VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA10CAHE3/5A from Vishay General Semiconductor is a bidirectional surface-mount TRANSZORB® transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on signal or power lines. It features a 10 V standoff voltage (VWM), 11.3 V maximum clamping voltage at 27.6 A peak pulse current (10/1000 μs), and 400 W peak pulse power rating. It is AEC-Q101 qualified and RoHS-compliant, suited for automotive sensor line protection.
For engineers reviewing the P4SMA10CAHE3/5A datasheet, P4SMA10CAHE3/5A pinout, P4SMA10CAHE3/5A application, or P4SMA10CAHE3/5A equivalent, this page delivers verified electrical parameters, thermal derating behavior, bidirectional clamping performance, AEC-Q101 qualification status, and real-world use cases in automotive and industrial electronics - all confirmed from Vishay's official P4SMA Series specification document (88367, Rev. 09-Jan-2024).
Technical Context
The P4SMA10CAHE3/5A operates as a bidirectional avalanche diode with symmetrical breakdown characteristics in both polarities, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown voltage (VBR = 10.5–11.6 V at 1 mA) and low incremental surge resistance.
It delivers 400 W peak pulse power (10/1000 μs waveform) at TA = 25 °C, derating to 300 W above 91 V, with thermal resistance RθJA = 120 °C/W and RθJL = 30 °C/W. The device is rated for TJ = –65 to +150 °C and meets MSL Level 1 per J-STD-020 (260 °C peak reflow).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 10 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 10.5–11.6 V at IT = 1 mA - Confirmed symmetric avalanche onset in both directions; ensures predictable clamping threshold. |
| VC (Clamping Voltage) | 14.5 V at IPPM = 27.6 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; enables robust IC-level protection. |
| PPPM (Peak Pulse Power) | 400 W - Sustains high-energy transients (e.g., ISO 7637-2 Pulse 1/2/5a) without failure when mounted on 5.0 mm × 5.0 mm copper pads. |
| ID (Reverse Leakage) | 10 μA max at VWM - Ensures minimal standby power loss and signal integrity in low-current sensor interfaces. |
| TJ max | +150 °C - Supports under-hood automotive operation and industrial environments with elevated ambient temperatures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional construction means no polarity marking; terminals are electrically symmetrical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals serve identically as clamping nodes; no cathode band marking required for bidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., CAN, LIN, sensor bridges) without external polarity management. |
| 400 W peak pulse power (10/1000 μs) | Withstands automotive load-dump and inductive switching surges per ISO 7637-2 without degradation when properly mounted. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; compatible with high-volume automated SMT assembly. |
| Glass-passivated junction | Provides stable VBR over lifetime and improved resistance to humidity-induced parameter drift versus epoxy-passivated alternatives. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors in engine compartments exposed to ISO 7637-2 Pulse 5a load dump. IC Role / Device Role / Timing Role: Bidirectional TVS clamp limiting transient voltage to ≤14.5 V during 100 ms surges up to 400 W. Use Value: Prevents latch-up or gate oxide damage in downstream op-amps and ADC front-ends while maintaining signal fidelity at 10 V nominal. |
Use Scenario: Safeguarding RS-485 transceiver data lines in factory automation PLCs subject to EFT/burst noise and ground bounce. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) voltage clamp absorbing ±1 kV EFT pulses without signal distortion. Use Value: Maintains communication integrity across long cable runs by suppressing common-mode transients before they reach the transceiver input stage. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side DC bus protection in USB-C PD adapters against inductive kickback from synchronous rectifiers. IC Role / Device Role / Timing Role: Low-leakage (≤10 μA) bidirectional clamp holding rail voltage within 14.5 V during 27.6 A surges. Use Value: Eliminates need for separate unidirectional devices on dual-rail outputs, reducing BOM count and PCB area in space-constrained designs. |
Use Scenario: Primary protection for Ethernet PHY interface lines in VoIP gateways subjected to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: First-stage clamping element diverting >90% of 10/1000 μs surge energy away from sensitive PHY ICs. Use Value: Enables compliance with GR-1089-CORE Level 4 requirements while supporting 100BASE-TX signal integrity up to 125 MHz. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ10CA | Higher 600 W PPPM rating; larger SMB (DO-214AA) package; same VWM/VBR/VC specs. | Preferred where higher surge margin is required and PCB layout allows larger footprint. | Select SMBJ10CA when system-level surge testing exceeds 400 W but board space permits SMB package. |
| 1.5KE10CA | Through-hole TO-218 package; 1500 W PPPM; higher junction capacitance (>1000 pF); slower response than P4SMA series. | Suitable for AC mains or bulk power rail protection, not high-speed signal lines. | Choose 1.5KE10CA only for non-high-frequency, high-energy applications where SMT is impractical. |
Compared with SMBJ10CA and 1.5KE10CA, the P4SMA10CAHE3/5A offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and 400 W surge capability - making it the preferred choice for space-constrained automotive and industrial signal-line protection where reliability and manufacturability are critical.
Availability
P4SMA10CAHE3/5A is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, and consumer power adapter secondary-side protection requiring stable component supply, AEC-Q101 traceability, and RoHS-compliant manufacturing.
Supply support for P4SMA10CAHE3/5A 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series is engineered for robust transient suppression in automotive, industrial, and telecom systems - delivering standardized, AEC-Q101-qualified TVS diodes with precise clamping and high surge endurance in compact surface-mount packages.
FAQ
What is the clamping voltage of the P4SMA10CAHE3/5A at its rated peak pulse current?
The P4SMA10CAHE3/5A has a maximum clamping voltage (VC) of 14.5 V at a peak pulse current (IPPM) of 27.6 A using the standard 10/1000 μs waveform. This value is measured under specified test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads) and reflects the actual voltage imposed on the protected circuit during surge events. The P4SMA10CAHE3/5A maintains this clamping performance consistently due to its glass-passivated junction and bidirectional symmetry.
Is the P4SMA10CAHE3/5A suitable for automotive applications?
Yes, the P4SMA10CAHE3/5A is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix indicating RoHS-compliance and automotive-grade reliability validation. It meets requirements for temperature cycling, high-temperature reverse bias, and ESD robustness per AEC-Q101. The P4SMA10CAHE3/5A is commonly deployed in engine control modules, body electronics, and ADAS sensor interfaces where transient immunity and long-term stability are mandatory.
Does the P4SMA10CAHE3/5A have polarity markings on the package?
No, the P4SMA10CAHE3/5A does not feature polarity markings such as a cathode band because it is a bidirectional TVS diode. Its internal structure provides symmetrical clamping in both directions, so either terminal may be connected to the line being protected without regard to polarity. This eliminates orientation errors during automated placement and simplifies design for AC-coupled or floating circuits. The P4SMA10CAHE3/5A relies on package symmetry rather than visual indicators.
What is the maximum operating junction temperature for the P4SMA10CAHE3/5A?
The P4SMA10CAHE3/5A has a maximum operating junction temperature (TJ max) of +150 °C, as specified in Vishay's official documentation. This rating supports reliable operation in under-hood automotive environments and industrial enclosures with elevated ambient temperatures. Thermal derating follows the published curve (Fig. 2), reducing peak pulse power linearly above 25 °C ambient. The P4SMA10CAHE3/5A achieves this via low RθJL (30 °C/W) and optimized die attachment in the SMA package.
How does the P4SMA10CAHE3/5A differ from the unidirectional P4SMA10AHE3/5A?
The P4SMA10CAHE3/5A is bidirectional with symmetrical breakdown and clamping in both polarities, whereas the P4SMA10AHE3/5A is unidirectional and requires correct cathode orientation relative to the protected line. The "CA" suffix denotes bidirectional functionality and applies identical electrical specs (VWM = 10 V, VBR = 10.5–11.6 V, VC = 14.5 V) in both directions. The P4SMA10CAHE3/5A eliminates polarity dependency, making it ideal for differential or AC signal paths where voltage polarity reverses.
P4SMA10CAHE3/5A 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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 8.55V
- Voltage - Breakdown (Min):
- 9.5V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 27.6A
- 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)
P4SMA10CAHE3/5A FAQ
1.How can I place an order for P4SMA10CAHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA10CAHE3/5A 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 P4SMA10CAHE3/5A reliable?
The price and inventory of P4SMA10CAHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA10CAHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA10CAHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA10CAHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA10CAHE3/5A?
P4SMA10CAHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA10CAHE3/5A 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 P4SMA10CAHE3/5A?
For technical support, including P4SMA10CAHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA10CAHE3/5A requirements.
6.How does Aetrix verify that P4SMA10CAHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA10CAHE3/5A 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 P4SMA10CAHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA10CAHE3/5A?
All P4SMA10CAHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA10CAHE3/5A, 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 P4SMA10CAHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA10CAHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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