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Vishay General Semiconductor - Diodes Division P4SMA150CAHE3/5A
- Part No.:
- P4SMA150CAHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA150CAHE3/5A.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,519
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Product details
Overview
P4SMA150CAHE3/5A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in the P4SMA series, designed for clamping voltage transients on signal or power lines. It features a 150 V standoff voltage (VWM), 165 V minimum breakdown voltage (VBR), 207 V maximum clamping voltage (VC) at 1.4 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) capability with a 10/1000 µs waveform - used in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the P4SMA150CAHE3/5A datasheet, P4SMA150CAHE3/5A pinout, P4SMA150CAHE3/5A application, or P4SMA150CAHE3/5A equivalent, this device serves as an AEC-Q101-qualified, RoHS-compliant bidirectional TVS diode in SMA (DO-214AC) package for robust ESD and surge immunity in harsh environments where polarity-agnostic transient suppression is required.
Technical Context
The P4SMA150CAHE3/5A operates bidirectionally with symmetrical clamping behavior in both polarities, enabling use without polarity awareness on AC-coupled or differential lines. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at VWM), while its MSL Level 1 rating supports lead-free reflow up to 260 °C.
Thermal resistance is 120 °C/W (junction-to-ambient) and 30 °C/W (junction-to-lead), supporting reliable operation under repetitive surge conditions when mounted on recommended 5.0 mm × 5.0 mm copper pads. The device meets UL 497B recognition (QVGQ2) and complies with JESD201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff Voltage) | 150 V - Maximum continuous reverse voltage before conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 165–183 V at 1 mA test current - Ensures consistent turn-on across production lots; min/max range guarantees design headroom. |
| VC (Clamping Voltage) | 207 V at IPPM = 1.4 A (10/1000 µs) - Limits transient voltage seen by downstream ICs; critical for protecting 150 V-rated components. |
| PPPM (Peak Pulse Power) | 400 W - Sustains high-energy surges per IEEE C62.35; derates to 300 W above 91 V per spec. |
| ID (Reverse Leakage) | ≤1.0 µA at VWM - Minimizes standby power loss and avoids false triggering in high-impedance sensing paths. |
| TJ max. | +150 °C - Enables deployment in under-hood automotive and industrial enclosures with elevated ambient temperatures. |
| AEC-Q101 Qualified | Yes - Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD HBM/MM. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. No polarity marking - bidirectional symmetry eliminates cathode/anode orientation concerns during placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals behave identically; connects across protected line and ground (or between differential lines) without polarity constraint. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, RS-485 buses, or ungrounded sensor outputs without polarity planning. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control modules, ADAS sensors, and body electronics. |
| 400 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) on 12 V/24 V systems when properly laid out. |
| MSL Level 1, 260 °C peak | Supports standard lead-free reflow profiles without preconditioning or special handling. |
| UL 497B recognized (QVGQ2) | Meets safety agency requirements for telecom and industrial equipment requiring certified surge protectors. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) in engine compartments exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamp limiting transient voltage to ≤207 V during 10/1000 µs surges. Use Value: Prevents latch-up or permanent damage to 150 V-tolerant signal conditioning ICs while maintaining signal integrity during normal operation. |
Use Scenario: Safeguarding PLC analog input channels (4–20 mA, 0–10 V) against field-induced surges from motor drives or lightning coupling. IC Role / Device Role / Timing Role: Fast-response (sub-nanosecond) voltage clamp placed directly at connector entry point. Use Value: Maintains measurement accuracy by limiting overshoot to <210 V, avoiding ADC saturation or op-amp rail-to-rail clipping. |
| Telecom Line Protection | Consumer Appliance Control Board |
Use Scenario: Shielding Ethernet PHY interfaces or DSL line drivers from ESD (IEC 61000-4-2) and induced surges in outdoor network equipment. IC Role / Device Role / Timing Role: Primary front-end transient suppressor on differential pair or DC bias line. Use Value: Achieves >15 kV contact ESD immunity without degrading 100 MHz signal integrity due to low junction capacitance (~50 pF at 0 V). |
Use Scenario: Securing microcontroller GPIOs and relay driver outputs in washing machines or HVAC controllers subjected to relay coil flyback and power supply transients. IC Role / Device Role / Timing Role: Low-leakage (≤1 µA) bidirectional clamp isolating MCU pins from inductive switching noise. Use Value: Eliminates software resets caused by transient-induced logic upset while consuming negligible quiescent current. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA | Higher 600 W PPPM rating; larger SMB (DO-214AA) package; 224 V VC at 2.2 A IPPM. | Better suited for higher-energy surges but requires larger PCB area and different pad layout. | Select when surge energy exceeds 400 W and board space permits larger footprint. |
| 1.5KE150CA | Through-hole TO-218 package; 1500 W PPPM; 243 V VC at 6.2 A IPPM; higher thermal mass. | Used in legacy designs or high-power industrial supplies where manual assembly or heat sinking is preferred. | Choose only for through-hole prototyping or where existing TO-218 footprint must be retained. |
Compared with SMBJ150CA and 1.5KE150CA, the P4SMA150CAHE3/5A delivers optimal balance of AEC-Q101 compliance, compact SMA footprint, and 400 W surge handling - making it ideal for space-constrained automotive and industrial SMT assemblies where reliability and reflow compatibility are mandatory.
Availability
P4SMA150CAHE3/5A is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and telecom line safeguarding requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P4SMA150CAHE3/5A 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific performance.
The P4SMA series targets cost-sensitive, high-volume transient suppression needs in automotive, industrial, and consumer electronics - delivering AEC-Q101-qualified, surface-mount TVS diodes with consistent clamping and robust surge endurance.
FAQ
What does the "CA" suffix indicate in P4SMA150CAHE3/5A?
The "CA" suffix in P4SMA150CAHE3/5A denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression in both polarities - unlike unidirectional "A" variants that conduct only in reverse bias. This allows direct placement across AC lines or differential pairs without polarity alignment, simplifying layout and reducing BOM complexity.
Is P4SMA150CAHE3/5A qualified for automotive use?
Yes, P4SMA150CAHE3/5A is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code "HE3", which designates RoHS-compliant and automotive-grade qualification. It has passed stress tests including high-temperature operating life, temperature cycling, and ESD, making it suitable for engine control units, ADAS sensors, and body electronics.
What is the maximum clamping voltage of P4SMA150CAHE3/5A under surge conditions?
The maximum clamping voltage (VC) of P4SMA150CAHE3/5A is 207 V at a 10/1000 µs peak pulse current of 1.4 A, as specified in the Vishay datasheet. This value represents the upper limit of voltage imposed on protected circuitry during standardized surge events, ensuring downstream 150 V-rated components remain within safe operating limits.
Does P4SMA150CAHE3/5A require polarity-aware PCB layout?
No, P4SMA150CAHE3/5A does not require polarity-aware layout because it is a bidirectional TVS diode - both terminals are functionally identical. There is no cathode band or marking, and the device clamps equally in either direction, eliminating orientation errors during automated placement and simplifying schematic symbol usage.
What is the thermal resistance of P4SMA150CAHE3/5A, and how does it affect PCB design?
P4SMA150CAHE3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead (RθJL) of 30 °C/W. To maintain reliability under repetitive surges, Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - underscoring the need for adequate copper area to dissipate transient energy without exceeding +150 °C junction temperature.
P4SMA150CAHE3/5A 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):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 1.4A
- Power - Peak Pulse:
- 300W
- 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)
P4SMA150CAHE3/5A FAQ
1.How can I place an order for P4SMA150CAHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA150CAHE3/5A 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 P4SMA150CAHE3/5A reliable?
The price and inventory of P4SMA150CAHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA150CAHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA150CAHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA150CAHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA150CAHE3/5A?
P4SMA150CAHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA150CAHE3/5A 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 P4SMA150CAHE3/5A?
For technical support, including P4SMA150CAHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA150CAHE3/5A requirements.
6.How does Aetrix verify that P4SMA150CAHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA150CAHE3/5A 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 P4SMA150CAHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA150CAHE3/5A?
All P4SMA150CAHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA150CAHE3/5A, 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 P4SMA150CAHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA150CAHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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