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Vishay General Semiconductor - Diodes Division P4SMA8.2CA-E3/61
- Part No.:
- P4SMA8.2CA-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA8.2CA-E3/61.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,778
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Product details
Overview
P4SMA8.2CA-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 8.2 V standoff voltage (VWM), 9.1 V minimum breakdown voltage (VBR), 12.1 V maximum clamping voltage (VC) at 33.1 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 P4SMA8.2CA-E3/61 datasheet, P4SMA8.2CA-E3/61 pinout, P4SMA8.2CA-E3/61 application, or P4SMA8.2CA-E3/61 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.33), MSL Level 1 moisture sensitivity, AEC-Q101 qualification eligibility (via HE3/HM3 variants), and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
The P4SMA8.2CA-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 characteristics and fast response time (<1 ns), enabling protection against ESD, inductive switching spikes, and lightning-induced surges.
Thermal performance is defined by RθJA = 120 °C/W and RθJL = 30 °C/W, with derating above TA = 25 °C per Figure 2. It sustains repetitive 10/1000 μs pulses at 0.01% duty cycle (400 W up to 91 V; 300 W above), and meets UL 497B recognition (QVGQ2) for telecom and industrial surge protectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 8.2 V - Maximum continuous reverse working voltage before conduction begins; sets operating margin below breakdown. |
| VBR (Breakdown Voltage) | 7.79–8.61 V at 10 mA - Confirmed avalanche onset range; ensures predictable clamping initiation under transients. |
| VC (Clamping Voltage) | 12.1 V at 33.1 A IPPM - Peak voltage seen by protected circuit during worst-case 10/1000 μs surge; defines protection level. |
| PPPM (Peak Pulse Power) | 400 W - Sustained energy absorption capability for standardized 10/1000 μs waveform; validates robustness vs. IEC 61000-4-5. |
| ID (Reverse Leakage) | 200 μA max at VWM - Low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max | 150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| Package | SMA (DO-214AC) - Standardized surface-mount outline with 5.0 mm × 5.0 mm copper pad requirement; compatible with J-STD-020 reflow profiles. |
Pinout & Package
Package: SMA (DO-214AC), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | One terminal of symmetrical avalanche junction; connects to protected line or ground reference depending on layout. |
| Cathode | Transient return path (bidirectional) | Second terminal of symmetrical junction; no polarity marking - terminals are functionally identical for bidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints. |
| 400 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 3 surge immunity requirements for industrial interfaces. |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes overvoltage stress on downstream ICs while maintaining fast response and low capacitance. |
| AEC-Q101 qualification option (HE3/HM3) | Supports automotive-grade reliability validation for engine control, body electronics, and ADAS sensor interfaces. |
| MSL Level 1, 260 °C peak reflow | Eliminates pre-baking requirement and enables direct placement into standard SMT assembly lines. |
Applications
| Industrial Motor Control | Automotive Sensor Interface |
|---|---|
Use Scenario: Protection of gate drivers and feedback signal lines in variable-frequency drives subjected to inductive kickback from 3-phase motors. IC Role / Device Role / Timing Role: Bidirectional TVS clamps ±1 kV transients induced by contactor switching and regenerative braking events. Use Value: Prevents latch-up or permanent damage to isolated gate drivers (e.g., Si823x) and analog front-end amplifiers without adding series impedance. |
Use Scenario: ESD and load-dump suppression on LIN bus and analog sensor outputs (e.g., pressure, temperature) in passenger compartment modules. IC Role / Device Role / Timing Role: Fast-response voltage clamp absorbing ±8 kV HBM ESD and 12 V/35 V load-dump transients per ISO 7637-2. Use Value: Maintains signal fidelity below 12.1 V clamping threshold while surviving >1000 surge cycles under automotive thermal cycling conditions. |
| Telecom Line Interface | Consumer USB Port Protection |
Use Scenario: Secondary protection stage on Ethernet PHY differential pairs and RS-485 data lines exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional clamping device placed after primary gas discharge tube (GDT), limiting let-through voltage to PHY transceivers. Use Value: Delivers sub-100 ps response and <15 pF junction capacitance (typ.) to avoid signal integrity degradation at 100 Mbps+ data rates. |
Use Scenario: Overvoltage protection on VBUS and D+/D− lines of USB 2.0 ports in smart speakers and portable displays. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing 15 kV air-gap ESD per IEC 61000-4-2 while remaining non-conductive during normal 5 V operation. Use Value: Achieves <200 μA leakage at 5.5 V, ensuring no impact on USB enumeration or battery drain in always-on devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0CA | Higher PPPM (600 W), larger SMB package (DO-214AA), 12.5 V VC at 43.3 A IPPM | Better suited for higher-energy surges; requires larger PCB footprint and different pad layout | Select when system-level surge testing exceeds 400 W or when thermal margin demands lower RθJA |
| 1.5SMC8.2CA | Same VWM/VC specs but in larger SMC (DO-214AB) package; 1500 W PPPM rating | Designed for board-level primary protection; not optimized for dense signal-line placement | Choose for cost-sensitive industrial mains-input protection where space allows larger discrete TVS |
Compared with P4SMA8.2CA-E3/61, SMBJ8.0CA offers higher surge capacity in a slightly larger package, while 1.5SMC8.2CA provides significantly higher power handling in a less compact form factor - making P4SMA8.2CA-E3/61 optimal for space-constrained, high-density signal-line protection where 400 W capability suffices.
Availability
P4SMA8.2CA-E3/61 is available at Aetrix Electronics and suitable for industrial motor control, automotive sensor interface, telecom line protection, and consumer USB port protection requiring stable component supply across production lifecycles.
Supply support for P4SMA8.2CA-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series is engineered for robust transient suppression in space-constrained surface-mount applications, targeting automotive, industrial, and telecom systems where bidirectional clamping, low leakage, and AEC-Q101 readiness are critical design requirements.
FAQ
What is the clamping voltage of P4SMA8.2CA-E3/61 at its rated peak pulse current?
The P4SMA8.2CA-E3/61 has a maximum clamping voltage (VC) of 12.1 V at 33.1 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in the Electrical Characteristics table of Vishay's Document Number 88367. The low VC ensures sensitive downstream components like microcontrollers and analog sensors remain within safe operating limits.
Is P4SMA8.2CA-E3/61 suitable for automotive applications?
P4SMA8.2CA-E3/61 itself is commercial-grade (E3 suffix), but the P4SMA8.2CA-HE3 variant is AEC-Q101 qualified for automotive use. Engineers selecting P4SMA8.2CA-E3/61 for automotive designs must verify whether their application requires formal qualification - if so, P4SMA8.2CA-HE3 or P4SMA8.2CA-HM3 should be specified instead. The base P4SMA8.2CA-E3/61 shares identical electrical specs and thermal ratings, but lacks the extended reliability validation required for under-hood or safety-critical modules.
Does P4SMA8.2CA-E3/61 have polarity markings?
No, P4SMA8.2CA-E3/61 does not have polarity markings because it is a bidirectional TVS diode. Unlike unidirectional variants (e.g., P4SMA8.2A), the CA suffix indicates symmetrical avalanche behavior in both directions, and the device functions identically regardless of terminal orientation. This eliminates risk of incorrect placement during automated assembly and simplifies layout for AC-coupled or floating signal paths.
What is the maximum reverse leakage current for P4SMA8.2CA-E3/61 at its standoff voltage?
The maximum reverse leakage current (ID) for P4SMA8.2CA-E3/61 is 200 μA at the 8.2 V standoff voltage (VWM), tested at TA = 25 °C. This low leakage ensures minimal loading on high-impedance sensor outputs and communication lines, preserving accuracy and reducing standby power consumption - critical for battery-powered IoT nodes and precision analog front ends where signal integrity is paramount.
Can P4SMA8.2CA-E3/61 be used in place of a unidirectional TVS like P4SMA8.2A?
No - P4SMA8.2CA-E3/61 and P4SMA8.2A are not interchangeable without circuit review. The "CA" suffix denotes bidirectional operation with symmetrical clamping, while "A" indicates unidirectional behavior with cathode band marking. Substituting P4SMA8.2CA-E3/61 for P4SMA8.2A in DC-biased circuits may cause unintended conduction during normal operation. Always validate polarity requirements and transient directionality before replacement.
P4SMA8.2CA-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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 33.1A
- 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)
P4SMA8.2CA-E3/61 FAQ
1.How can I place an order for P4SMA8.2CA-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA8.2CA-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 P4SMA8.2CA-E3/61 reliable?
The price and inventory of P4SMA8.2CA-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 P4SMA8.2CA-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA8.2CA-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA8.2CA-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA8.2CA-E3/61?
P4SMA8.2CA-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA8.2CA-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 P4SMA8.2CA-E3/61?
For technical support, including P4SMA8.2CA-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA8.2CA-E3/61 requirements.
6.How does Aetrix verify that P4SMA8.2CA-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA8.2CA-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 P4SMA8.2CA-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA8.2CA-E3/61?
All P4SMA8.2CA-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA8.2CA-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 P4SMA8.2CA-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA8.2CA-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA8.2CA-E3/61 Tags
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