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Vishay General Semiconductor - Diodes Division P4SMA150CA-E3/5A
- Part No.:
- P4SMA150CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA150CA-E3/5A.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA150CA-E3/5A from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on signal and power lines. It features a 150 V standoff voltage (VWM), 179 V minimum breakdown voltage (VBR), 207 A peak pulse current (IPPM) at 10/1000 µs, 400 W peak pulse power rating, and operates across -65 °C to +150 °C junction temperature range - deployed in industrial sensor interfaces and telecom line protection.
For engineers reviewing the P4SMA150CA-E3/5A datasheet, P4SMA150CA-E3/5A pinout, P4SMA150CA-E3/5A application, or P4SMA150CA-E3/5A equivalent, key selection criteria include bidirectional clamping capability, 207 A surge handling at 10/1000 µs, 150 V working voltage compatibility with 24–48 V DC systems, low incremental surge resistance, and AEC-Q101 qualification eligibility via HE3/HM3 variants.
Technical Context
This bidirectional TVS diode uses a glass-passivated silicon junction to achieve fast response time (<1 ns) and stable clamping under repetitive transient stress. Its symmetrical I-V characteristic enables identical protection in both polarities without polarity marking.
The device delivers 400 W peak pulse power (10/1000 µs waveform) up to 91 V; above that threshold, derated to 300 W - confirmed for P4SMA150CA per primary characteristics table. Thermal resistance is 120 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads, supporting reliable operation in compact PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 150 V - maximum continuous reverse voltage before clamping begins; defines operating window for 24–48 V DC bus protection. |
| VBR (Breakdown Voltage) | 179–198 V at 1 mA - ensures robust margin above VWM; guarantees conduction onset within specified tolerance during overvoltage events. |
| VC (Clamping Voltage) | 207 V at IPPM - maximum voltage seen by protected circuit during 207 A transient; critical for IC-level ESD/surge survivability. |
| IPPM (Peak Pulse Current) | 207 A (10/1000 µs) - quantifies surge-handling capacity; validates suitability for IEC 61000-4-5 Level 3 (1 kV/42 Ω) compliance. |
| PPPM (Peak Pulse Power) | 400 W - peak dissipation capability under standardized surge waveform; confirms energy absorption without thermal runaway. |
| TJ max | +150 °C - maximum junction temperature; supports operation in high-ambient environments like industrial motor drives and outdoor telecom units. |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline with 5.28 mm length, 4.50 mm width, and 2.29 mm height; compatible with automated pick-and-place. |
Pinout & Package
SMA (DO-214AC) package: molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, MSL level 1 (260 °C reflow peak), and no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal A | One side of symmetrical PN junction; forms bidirectional clamping path with Cathode terminal. |
| Cathode | Terminal K | Other side of symmetrical PN junction; functionally identical to Anode in bidirectional mode; no band marking required. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns - e.g., RS-485, CAN, Ethernet PHY interfaces. |
| 400 W peak pulse power (≤91 V) | Supports high-energy surge suppression in industrial control cabinets exposed to inductive switching transients. |
| Glass passivated chip junction | Ensures long-term reliability and stable leakage performance (<1 µA at VWM) across temperature and humidity stress. |
| AEC-Q101 qualified variants available | HE3/HM3 suffix options meet automotive-grade reliability requirements for body electronics and infotainment power rails. |
| Low profile (2.29 mm height) | Minimizes board space and enables placement near connectors or ICs requiring localized transient suppression. |
Applications
| Industrial Sensor Interface Protection | Telecom Line Surge Suppression |
|---|---|
Use Scenario: Protecting analog output (4–20 mA) and digital I/O lines of pressure/temperature sensors mounted in factory-floor machinery subject to relay coil kickback and EFT. IC Role / Device Role / Timing Role: Bidirectional TVS placed between signal line and ground to clamp ±1 kV transients before reaching ADC or microcontroller GPIO. Use Value: Prevents latch-up or permanent damage to precision op-amps and SAR ADCs while maintaining <1 µA leakage at 150 V system rail. |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in base station remote radio units exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary front-end clamping device on differential pairs, coordinated with GDT or MOV secondary protection stages. Use Value: Limits transient voltage to ≤207 V within nanoseconds, preserving signal integrity and enabling compliance with ITU-T K.21 basic protection level. |
| Automotive Body Control Module (BCM) | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding LIN bus nodes and LED driver ICs in door modules against load dump and jump-start transients in 12 V systems. IC Role / Device Role / Timing Role: Bidirectional TVS on LIN data line and power input, selected for VWM ≥13.5 V and clamping <207 V at 207 A. Use Value: Enables use of AEC-Q101-qualified P4SMA150CA-HE3 variant to meet ISO 7637-2 Pulse 5a requirements without redesign. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to microcontroller-based motor controllers. IC Role / Device Role / Timing Role: Mounted across motor terminals or between H-bridge outputs and ground to absorb inductive energy during PWM switching. Use Value: Withstands 400 W pulses repeatedly at 0.01% duty cycle, preventing MOSFET avalanche failure and reducing need for snubber networks. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150CA | Same VWM (150 V) and bidirectional configuration, but SMB package (DO-214AA); 600 W PPPM rating; higher IPPM (329 A). | Larger footprint (4.57 × 3.94 mm vs. 4.50 × 3.99 mm); better suited for higher-power industrial mains interfaces. | Select when higher surge margin is needed and PCB layout allows larger package; not drop-in due to different pad dimensions. |
| 1.5KE150CA | Through-hole DO-201 package; same VWM and bidirectional function; 1500 W PPPM; 100 A IPPM (10/1000 µs). | Requires through-hole assembly; used where mechanical robustness and heat sinking dominate over board space constraints. | Choose for legacy designs or high-reliability power supply inputs where leaded mounting improves thermal cycling endurance. |
Compared with SMBJ150CA and 1.5KE150CA, P4SMA150CA-E3/5A offers optimal balance of compact SMA footprint, 400 W surge rating, and RoHS-compliant tape-and-reel delivery - ideal for space-constrained, high-volume SMT production targeting industrial and telecom end equipment.
Availability
P4SMA150CA-E3/5A is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line protection, automotive body electronics, and consumer appliance motor drive circuits requiring stable component supply and full traceability.
Supply support for P4SMA150CA-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 optimization.
The P4SMA Series is engineered for high-speed transient suppression in space-constrained surface-mount applications, delivering consistent clamping performance across commercial and automotive temperature ranges with scalable power handling.
FAQ
What is the clamping voltage of P4SMA150CA-E3/5A at its rated peak pulse current?
The clamping voltage (VC) of P4SMA150CA-E3/5A is 207 V measured at its peak pulse current (IPPM) of 207 A under the 10/1000 µs waveform condition. This value is specified in the Electrical Characteristics table on page 2 of the Vishay document 88367 and represents the maximum voltage imposed on the protected circuit during a standardized surge event - directly determining whether downstream ICs remain within safe operating limits.
Is P4SMA150CA-E3/5A unidirectional or bidirectional?
P4SMA150CA-E3/5A is a bidirectional Transient Voltage Suppressor, indicated by the "CA" suffix per Vishay's naming convention. Its electrical characteristics apply identically in both directions, with no cathode band marking required. This makes it suitable for protecting AC-coupled or floating signal paths such as RS-485, CAN, or Ethernet differential pairs without polarity alignment concerns during assembly.
Does P4SMA150CA-E3/5A meet automotive qualification standards?
The base P4SMA150CA-E3/5A is RoHS-compliant and commercial-grade; however, Vishay offers AEC-Q101 qualified versions under ordering codes P4SMA150CAHE3_A and P4SMA150CAHM3_A (with "_A" revision). These variants undergo stress testing per AEC-Q101 and are intended for automotive body electronics applications - the P4SMA150CA-E3/5A itself is not AEC-Q101 qualified unless ordered with HE3 or HM3 suffixes.
What is the thermal resistance of P4SMA150CA-E3/5A, and how does it affect layout design?
P4SMA150CA-E3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as defined in the Thermal Characteristics table. This value guides PCB layout: adequate copper area must be provided to avoid exceeding the 150 °C maximum junction temperature during repetitive surge events - undersized pads will cause premature thermal derating of peak power capability.
How does the 10/1000 µs waveform specification relate to real-world surge threats like IEC 61000-4-5?
The 10/1000 µs waveform used to rate P4SMA150CA-E3/5A's 400 W peak pulse power and 207 A IPPM aligns with the open-circuit voltage waveform defined in IEC 61000-4-5 for surge immunity testing. While actual system-level testing requires coordination with upstream impedance (e.g., 2 Ω or 42 Ω source), this rating confirms P4SMA150CA-E3/5A can clamp transients matching that waveform shape - making it appropriate for Level 3 (1 kV/42 Ω) and Level 4 (2 kV/42 Ω) protection stages in industrial and telecom equipment.
P4SMA150CA-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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA150CA-E3/5A FAQ
1.How can I place an order for P4SMA150CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA150CA-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 P4SMA150CA-E3/5A reliable?
The price and inventory of P4SMA150CA-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 P4SMA150CA-E3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA150CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA150CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA150CA-E3/5A?
P4SMA150CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA150CA-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 P4SMA150CA-E3/5A?
For technical support, including P4SMA150CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA150CA-E3/5A requirements.
6.How does Aetrix verify that P4SMA150CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA150CA-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 P4SMA150CA-E3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA150CA-E3/5A?
All P4SMA150CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA150CA-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 P4SMA150CA-E3/5A part is unused and in its original packaging.
Return procedure for P4SMA150CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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