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Vishay General Semiconductor - Diodes Division P4SMA15CA-E3/61
- Part No.:
- P4SMA15CA-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA15CA-E3/61.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,720
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Product details
Overview
P4SMA15CA-E3/61 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 15 V standoff voltage (VWM), 17.1 V minimum breakdown voltage (VBR), 21.2 V maximum clamping voltage (VC) at 18.9 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P4SMA15CA-E3/61 datasheet, P4SMA15CA-E3/61 pinout, P4SMA15CA-E3/61 application, or P4SMA15CA-E3/61 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.24), AEC-Q101 qualification status, thermal resistance (RθJA = 120 °C/W), and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
The P4SMA15CA-E3/61 operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while low incremental surge resistance enables effective energy diversion during ESD or inductive switching events.
Rated for 400 W peak pulse power (10/1000 µs) and 3.3 W steady-state power dissipation, it supports operation from −65 °C to +150 °C junction temperature. The device meets MSL Level 1 per J-STD-020 and is RoHS-compliant with matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 15 V - Maximum continuous reverse working voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 17.1–18.9 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 21.2 V at 18.9 A IPPM - Peak voltage seen by protected circuit under full-rated surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 400 W (10/1000 µs) - Energy-handling capacity for standardized surge waveforms; derates above 25 °C ambient. |
| RθJA | 120 °C/W - Thermal resistance from junction to ambient; requires adequate PCB copper area (0.2" × 0.2") for rated power handling. |
| TJ max | +150 °C - Maximum junction temperature; sets upper limit for thermal design in enclosed or high-ambient environments. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic case meeting UL 94 V-0 flammability rating. Dimensions: 4.50 mm × 3.99 mm × 2.29 mm (L × W × H); cathode band absent (bidirectional type).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point (negative polarity) | One terminal of symmetrical avalanche junction; connects to line being protected without polarity constraint. |
| Cathode | Transient current entry point (positive polarity) | Second terminal of symmetrical junction; functionally identical to anode in bidirectional configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 400 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV, 2 Ω source) when properly mounted on 5 mm × 5 mm copper pads. |
| Low clamping ratio (VC/VBR ≈ 1.24) | Minimizes overvoltage exposure to downstream ICs compared to higher-ratio TVS devices. |
| AEC-Q101 qualified | Validated for automotive subsystems including body control modules, infotainment interfaces, and sensor harnesses. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and reflow at 260 °C peak without baking - compatible with standard SMT assembly. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential or single-ended signal lines upstream of interface ICs. Use Value: Limits transient voltage to ≤21.2 V during 18.9 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V automotive microcontrollers. |
Use Scenario: Shielding digital input/output channels in programmable logic controllers against inductive kickback from solenoids and relays. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on 24 V DC I/O rails, absorbing repetitive switching energy. Use Value: Withstands 400 W pulses at 0.01% duty cycle, enabling reliable operation in factory automation environments with frequent actuator cycling. |
| Consumer USB Port ESD Protection | Telecom Line Interface Protection |
Use Scenario: Safeguarding USB 2.0 data lines (D+/D−) and VBUS against human-body-model (HBM) and IEC 61000-4-2 contact discharge. IC Role / Device Role / Timing Role: Low-capacitance bidirectional TVS placed directly at connector entry point before USB transceiver. Use Value: Sub-1 ns response time clamps ESD events before propagation, while 21.2 V VC avoids violating USB 2.0 3.3 V signaling margins. |
Use Scenario: Protecting Ethernet PHY interfaces and analog telephone line drivers from lightning-induced surges and AC power cross-talk. IC Role / Device Role / Timing Role: Primary-level surge suppression on twisted-pair telecom lines prior to isolation transformers or line drivers. Use Value: 400 W rating handles telecom-specific surge standards (GR-1089-CORE), and bidirectional symmetry matches AC-coupled line architecture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15CA | Same VWM (15 V) and bidirectional structure, but SMB package (DO-214AA) - larger footprint (4.57 mm × 3.94 mm) and higher RθJA (100 °C/W). | Lower power density; better suited for lower-duty-cycle or less space-constrained layouts. | Select SMBJ15CA when board real estate allows larger package and thermal management via heatsinking is preferred. |
| 1.5SMC15CA | Same electrical specs but SMC (DO-214AB) package - 7.11 mm × 6.22 mm, higher PPPM (1500 W), RθJA = 40 °C/W. | Higher surge robustness and thermal performance; requires more PCB area and heavier copper. | Choose 1.5SMC15CA for mission-critical industrial or telecom systems requiring >1000 W surge margin and extended thermal lifetime. |
Compared with SMBJ15CA and 1.5SMC15CA, the P4SMA15CA-E3/61 delivers optimal balance of compact SMA footprint, AEC-Q101 qualification, and 400 W surge capability - making it ideal for space-limited automotive and consumer designs where MSL Level 1 and automated placement are mandatory.
Availability
P4SMA15CA-E3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer USB port protection, and telecom line driver circuits requiring stable component supply, RoHS compliance, and AEC-Q101 validation.
Supply support for P4SMA15CA-E3/61 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 targets cost-sensitive, high-volume transient protection needs across automotive, industrial, and consumer markets - engineered for automated SMT assembly, low-profile integration, and consistent clamping performance under repetitive surge conditions.
FAQ
What is the clamping voltage of P4SMA15CA-E3/61 at its rated peak pulse current?
The P4SMA15CA-E3/61 has a maximum clamping voltage (VC) of 21.2 V at 18.9 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per the test conditions specified in Vishay's datasheet document 88367 and reflects the worst-case voltage imposed on protected circuitry during full-rated surge events. The P4SMA15CA-E3/61 maintains this clamping performance across its operational temperature range when mounted per recommended pad layout.
Is P4SMA15CA-E3/61 suitable for automotive applications?
Yes, the P4SMA15CA-E3/61 is AEC-Q101 qualified, having passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per the AEC standard. Its bidirectional clamping, 150 °C maximum junction temperature, and MSL Level 1 rating make it appropriate for under-hood and cabin-mounted automotive electronics such as sensor interfaces and body control modules. The P4SMA15CA-E3/61 is explicitly listed in Vishay's automotive ordering codes with HE3/HM3 suffix variants.
How does the P4SMA15CA-E3/61 differ from unidirectional P4SMA15A-E3/61?
The P4SMA15CA-E3/61 is bidirectional with symmetrical clamping in both polarities and no polarity marking, whereas the P4SMA15A-E3/61 is unidirectional and marked with a cathode band. Their VWM (15 V), VBR (17.1–18.9 V), and VC (21.2 V) values are identical, but the unidirectional version conducts forward current up to 40 A IFSM and exhibits forward voltage drop (~3.5 V at 25 A), while the P4SMA15CA-E3/61 does not specify forward conduction parameters. The P4SMA15CA-E3/61 is selected for AC or floating-line protection; the unidirectional variant suits DC rail protection with defined polarity.
What is the thermal resistance of P4SMA15CA-E3/61, and how does it affect layout?
The P4SMA15CA-E3/61 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. This value assumes minimal PCB copper; reducing pad size increases thermal impedance and limits sustained power dissipation. To maintain reliability at 3.3 W steady-state power, designers must allocate sufficient copper area and consider airflow or adjacent heat sources. The P4SMA15CA-E3/61's RθJA directly governs allowable ambient temperature rise under continuous operation.
Does P4SMA15CA-E3/61 meet RoHS and halogen-free requirements?
Yes, the P4SMA15CA-E3/61 carries the "E3" suffix, indicating RoHS-compliant construction per EU Directive 2011/65/EU and exemption 7a. It uses matte tin-plated leads and halogen-free molding compound meeting IEC 61249-2-21. Vishay confirms material compliance via document 99912, and the P4SMA15CA-E3/61 is certified for use in environmentally regulated markets including the EU, China, and South Korea without restriction.
P4SMA15CA-E3/61 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):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 18.9A
- 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)
P4SMA15CA-E3/61 FAQ
1.How can I place an order for P4SMA15CA-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA15CA-E3/61 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 P4SMA15CA-E3/61 reliable?
The price and inventory of P4SMA15CA-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA15CA-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA15CA-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA15CA-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA15CA-E3/61?
P4SMA15CA-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA15CA-E3/61 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 P4SMA15CA-E3/61?
For technical support, including P4SMA15CA-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA15CA-E3/61 requirements.
6.How does Aetrix verify that P4SMA15CA-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA15CA-E3/61 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 P4SMA15CA-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA15CA-E3/61?
All P4SMA15CA-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA15CA-E3/61, 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 P4SMA15CA-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA15CA-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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