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Vishay General Semiconductor - Diodes Division P4SMA300CA-E3/61
- Part No.:
- P4SMA300CA-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA300CA-E3/61.pdf
- Description:
- TVS DIODE 256VWM 414VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,709
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Product details
Overview
P4SMA300CA-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 or power lines. It features a 300 V standoff voltage (VWM), 330 V minimum breakdown voltage (VBR), 400 W peak pulse power (10/1000 µs), 1.2 A maximum clamping current (IPPM), and 482 V maximum clamping voltage (VC) - deployed in industrial sensor interfaces and telecom line protection.
For engineers reviewing the P4SMA300CA-E3/61 datasheet, P4SMA300CA-E3/61 pinout, P4SMA300CA-E3/61 application, or P4SMA300CA-E3/61 equivalent, key selection criteria include bidirectional clamping capability, 300 V working voltage rating, RoHS-compliant E3 termination, MSL Level 1 moisture sensitivity, and AEC-Q101 qualification status (B revision).
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical electrical characteristics in forward and reverse directions. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1 µA at VWM), while the low incremental surge resistance enables precise voltage clamping during fast transients.
The device delivers 400 W peak pulse power under standardized 10/1000 µs waveform conditions when mounted on 5.0 mm × 5.0 mm copper pads, derating to 300 W above 91 V. Thermal resistance is 120 °C/W (junction-to-ambient) and 30 °C/W (junction-to-lead), supporting reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 300 V - maximum continuous DC or RMS voltage the device blocks without clamping |
| VBR (Breakdown Voltage) | 330–370 V at 1 mA - voltage at which device transitions from high-impedance to low-impedance conduction |
| VC (Clamping Voltage) | 482 V at IPPM = 1.2 A - maximum voltage seen by protected circuit during 10/1000 µs transient |
| PPPM (Peak Pulse Power) | 400 W - transient energy handling capacity under standard 10/1000 µs waveform |
| ID (Reverse Leakage) | <1 µA at 300 V - minimal standby current draw, critical for low-power sensor circuits |
| TJ max. | 150 °C - maximum junction temperature enabling use in high-ambient industrial environments |
| Package | SMA (DO-214AC) - industry-standard surface-mount outline compatible with automated placement and reflow |
Pinout & Package
Package: SMA (DO-214AC), molded epoxy case meeting UL 94 V-0 flammability rating; matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive half-cycle) | One terminal of symmetrical junction; conducts during positive overvoltage events |
| Anode | Transient current exit (negative half-cycle) | Same physical terminal serves as cathode during negative transients due to bidirectional symmetry |
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 | Withstands IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 50 Ω source impedance lines |
| MSL Level 1 rating | Allows unlimited floor life and standard reflow without baking, reducing manufacturing overhead |
| AEC-Q101 qualified (B revision) | Validated for automotive subsystems including body electronics and infotainment power rails |
| Glass passivated junction | Ensures stable VBR tolerance (±5 %) and low leakage over temperature and lifetime |
Applications
| Industrial Sensor Interface Protection | Telecom Line Surge Suppression |
|---|---|
Use Scenario: Protecting 4–20 mA current-loop sensors in factory automation against inductive switching transients and ESD. IC Role / Device Role / Timing Role: Bidirectional TVS placed across sensor input terminals to clamp ±2 kV contact ESD and 1 kV surge pulses. Use Value: Prevents damage to precision op-amps and ADC front-ends while maintaining <1 µA leakage at 300 V common-mode offset. |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on differential bus lines, coordinated with GDT secondary protection. Use Value: Limits clamped voltage to 482 V, staying below 500 V absolute maximum ratings of ISO1176 and MAX13442E transceivers. |
| Automotive Body Control Module (BCM) | Power Supply Input Filtering |
Use Scenario: Safeguarding LIN bus nodes and LED driver ICs in door modules against load dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional suppressor on 12 V supply rail upstream of LDO regulators. Use Value: Survives AEC-Q101 stress tests and clamps 300 V transients to 482 V within 1 ns response time. |
Use Scenario: Secondary-side transient suppression on 24 V DC-DC converter outputs feeding PLC I/O cards. IC Role / Device Role / Timing Role: Final-stage TVS after bulk capacitance, absorbing residual ringback energy. Use Value: 300 V VWM aligns with 24 V system derated to 300 V peak, avoiding false triggering during normal ripple. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ300CA | Higher 600 W PPPM rating; SMB package (DO-214AA), 1.6 mm taller, same 300 V VWM | Better suited for higher-energy surges but requires larger PCB footprint and different thermal pad layout | Select when surge immunity must exceed IEC 61000-4-5 Level 4 or when board space allows larger package |
| 1.5KE300CA | Through-hole TO-218 package; 1500 W PPPM; higher VF and slower response than P4SMA series | Used in legacy power supplies where manual assembly or high-energy clamping dominates over speed | Choose only for retrofit designs requiring through-hole mounting or >1 kW transient handling |
Compared with SMBJ300CA and 1.5KE300CA, the P4SMA300CA-E3/61 offers optimal balance of compact SMA footprint, 400 W surge rating, sub-nanosecond response, and AEC-Q101 qualification - making it preferred for new SMT-based industrial and automotive modules where board area and reliability are constrained.
Availability
P4SMA300CA-E3/61 is available at Aetrix Electronics and suitable for industrial sensor interfaces, telecom line protection, automotive body control modules, and DC-DC converter output filtering requiring stable component supply and RoHS-compliant sourcing.
Supply support for P4SMA300CA-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 targets cost-sensitive, high-volume transient protection needs in consumer, industrial, telecom, and automotive systems - delivering standardized TVS performance in compact surface-mount packages with AEC-Q101 and RoHS compliance.
FAQ
What does the "CA" suffix indicate in P4SMA300CA-E3/61?
The "CA" suffix in P4SMA300CA-E3/61 denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage suppression in both polarities. Unlike unidirectional variants (e.g., P4SMA300A), this part has no cathode marking and exhibits identical VBR, VC, and leakage characteristics for positive and negative transients - essential for protecting AC-coupled or floating signal paths.
Is P4SMA300CA-E3/61 qualified for automotive applications?
Yes, P4SMA300CA-E3/61 is AEC-Q101 qualified under revision B, as confirmed in Vishay's ordering information table. This qualification covers stress testing for temperature cycling, humidity, mechanical shock, and surge robustness - validating its suitability for non-safety-critical automotive subsystems such as body control modules, lighting drivers, and infotainment power rails.
What is the maximum clamping voltage of P4SMA300CA-E3/61 under surge conditions?
The maximum clamping voltage (VC) of P4SMA300CA-E3/61 is 482 V at a peak pulse current (IPPM) of 1.2 A, measured using the standardized 10/1000 µs waveform. This value represents the highest voltage imposed on the protected circuit during worst-case transient events and is critical for ensuring downstream ICs remain within their absolute maximum voltage ratings.
Does P4SMA300CA-E3/61 require special PCB layout considerations?
Yes - for optimal thermal and electrical performance, P4SMA300CA-E3/61 must be mounted on minimum 5.0 mm × 5.0 mm copper pads per terminal, as specified in Vishay's datasheet Figure 1. Smaller pads reduce heat dissipation and may cause premature failure under repetitive surges; additionally, short, wide traces minimize inductance and preserve sub-nanosecond response time.
How does the E3/61 suffix affect P4SMA300CA-E3/61's compliance and packaging?
The "E3" suffix indicates RoHS-compliant, commercial-grade construction with matte tin-plated leads, while "/61" specifies packaging in 7-inch plastic tape-and-reel format with 1800 units per reel. This configuration meets J-STD-002 solderability standards and MSL Level 1 requirements - enabling direct placement into standard SMT lines without pre-baking or special handling.
P4SMA300CA-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 256V
- Voltage - Breakdown (Min):
- 285V
- Voltage - Clamping (Max) @ Ipp:
- 414V
- Current - Peak Pulse (10/1000µs):
- 730mA
- 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)
P4SMA300CA-E3/61 FAQ
1.How can I place an order for P4SMA300CA-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA300CA-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 P4SMA300CA-E3/61 reliable?
The price and inventory of P4SMA300CA-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 P4SMA300CA-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA300CA-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA300CA-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA300CA-E3/61?
P4SMA300CA-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA300CA-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 P4SMA300CA-E3/61?
For technical support, including P4SMA300CA-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA300CA-E3/61 requirements.
6.How does Aetrix verify that P4SMA300CA-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA300CA-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 P4SMA300CA-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA300CA-E3/61?
All P4SMA300CA-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA300CA-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 P4SMA300CA-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA300CA-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA300CA-E3/61 Tags
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