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Vishay General Semiconductor - Diodes Division P4SMA30CA-E3/5A
- Part No.:
- P4SMA30CA-E3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA30CA-E3/5A.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,029
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Product details
Overview
P4SMA30CA-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 30 V standoff voltage (VWM), 33.3 V minimum breakdown voltage (VBR), 41.4 V maximum clamping voltage at 9.7 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, sensor interfaces, and communication lines in industrial and automotive electronics.
For engineers reviewing the P4SMA30CA-E3/5A datasheet, P4SMA30CA-E3/5A pinout, P4SMA30CA-E3/5A application, or P4SMA30CA-E3/5A equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.24), AEC-Q101 qualification eligibility (via HE3/HM3 variants), RoHS-compliant matte tin plating, and compatibility with automated SMT placement on standard 0.2" × 0.2" copper pads.
Technical Context
The P4SMA30CA-E3/5A operates as a symmetrical avalanche diode, conducting equally in both directions above its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5% min/max), low incremental surge resistance, and fast response time (<1 ns) to transient events such as ESD, inductive switching spikes, and lightning surges.
Thermally, it exhibits RθJA = 120 °C/W and RθJL = 30 °C/W, enabling reliable operation up to TJ = +150 °C. Derating applies above TA = 25 °C per Figure 2; peak pulse power drops to 300 W for devices rated above 91 V - not applicable here, confirming full 400 W rating remains valid for P4SMA30CA-E3/5A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 30 V - Maximum continuous reverse working voltage before conduction begins; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 33.3 V min / 37.1 V max at IT = 1 mA - Avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 41.4 V max at IPPM = 9.7 A - Peak voltage seen by protected circuit during 10/1000 µs surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 400 W - Energy-handling capacity under standardized 10/1000 µs waveform; supports robust protection in harsh environments. |
| ID (Reverse Leakage) | 1.0 µA max at VWM = 30 V - Minimal standby current leakage; preserves signal integrity and battery life in low-power systems. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive and high-ambient industrial settings. |
| Package | SMA (DO-214AC) - Surface-mount outline with 5.0 mm × 5.0 mm thermal pad footprint; compatible with IPC-7351B standard land patterns. |
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 return path (bidirectional) | Conducts surge current in either direction; connects to protected line or ground reference depending on layout. |
| Cathode | Transient return path (bidirectional) | Electrically identical to Anode in CA-type devices; forms symmetrical clamping pair across differential or single-ended lines. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables protection against high-energy transients like ISO 7637-2 Pulse 1/2a/5a without derating - critical for automotive ECUs and motor drives. |
| AEC-Q101 qualification path | Available via HE3/HM3 suffix variants; supports functional safety requirements in automotive applications where TVS reliability is mission-critical. |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage over temperature and lifetime; eliminates risk of parametric drift in harsh environments. |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow assembly without moisture sensitivity concerns; eliminates bake requirements pre-SMT. |
| Low clamping ratio (VC/VBR ≈ 1.24) | Minimizes overvoltage exposure during clamping; protects sensitive 3.3 V or 5 V logic interfaces without additional series impedance. |
Applications
| Automotive Sensor Interface Protection | Industrial CAN Bus Line Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) from load dump and alternator ripple in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping device placed between sensor signal line and chassis ground to shunt transients before reaching ADC input. Use Value: Maintains signal fidelity under ISO 16750-2 transient conditions while surviving >1000 surge cycles due to low incremental resistance and stable VBR. |
Use Scenario: Safeguarding CAN_H/CAN_L differential pair against ESD and inductive kickback in factory automation controllers. IC Role / Device Role / Timing Role: Dual-channel TVS configured as back-to-back diodes across bus lines to clamp common-mode and differential surges symmetrically. Use Value: Limits bus voltage excursion to < ±45 V during 8 kV contact ESD (IEC 61000-4-2), preserving CAN transceiver functionality without signal distortion. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Adding secondary-level ESD protection on USB 2.0 D+/D− lines behind primary polymer TVS in portable media devices. IC Role / Device Role / Timing Role: Fast-response bidirectional suppressor absorbing sub-100 ns HBM/CDM events before they reach USB PHY IC. Use Value: Achieves < 100 ps response time and < 0.5 pF junction capacitance (per Fig. 4 at VWM), preventing data corruption at 480 Mbps. |
Use Scenario: Front-end protection of ADSL/VDSL line interface circuits exposed to lightning-induced surges on outdoor copper pairs. IC Role / Device Role / Timing Role: Primary surge diverter mounted at PCB entry point, clamping longitudinal mode transients before hybrid transformer input. Use Value: Handles 10/700 µs telecom surges per ITU-T K.21 Basic Level with 400 W rating, reducing need for bulky gas discharge tubes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33CA | Higher PPPM (600 W), larger SMB package (DO-214AA), higher VC (53.3 V at 12.3 A) | Better suited for higher-energy threats; requires larger PCB area and different thermal pad layout | Select when system-level surge testing exceeds IEC 61000-4-5 Level 3 (1 kV/2 kV) |
| 1.5KE33CA | Through-hole TO-218 package, same VWM/VC specs but lower surge cycle endurance and no MSL-1 rating | Limited to non-automated production; unsuitable for high-volume SMT lines or automotive reflow profiles | Choose only for legacy board redesigns where through-hole mounting is mandated |
Compared with SMBJ33CA and 1.5KE33CA, P4SMA30CA-E3/5A offers optimal balance of compact SMA footprint, AEC-Q101 readiness, and 400 W surge handling - making it preferred for space-constrained, high-reliability SMT designs requiring repeatable automated assembly.
Availability
P4SMA30CA-E3/5A is available at Aetrix Electronics and suitable for automotive sensor modules, industrial CAN nodes, consumer USB peripherals, and telecom line cards requiring stable component supply with full traceability and volume scalability.
Supply support for P4SMA30CA-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series targets cost-sensitive, high-volume transient suppression needs in automotive, industrial, and communications equipment - delivering standardized TVS performance in compact surface-mount packages with qualified manufacturing consistency.
FAQ
What is the clamping voltage of P4SMA30CA-E3/5A at its rated peak pulse current?
The P4SMA30CA-E3/5A has a maximum clamping voltage (VC) of 41.4 V at 9.7 A peak pulse current (IPPM) under the 10/1000 µs waveform condition. This value is measured per Figure 1 and Table on page 2 of the Vishay datasheet 88367, ensuring predictable overvoltage limiting during surge events without exceeding safe margins for 3.3 V or 5 V logic interfaces.
Is P4SMA30CA-E3/5A suitable for automotive applications?
Yes, P4SMA30CA-E3/5A is eligible for automotive use via Vishay's AEC-Q101 qualified variants (e.g., P4SMA30CAHE3_A), though the E3/5A suffix itself denotes RoHS-compliant commercial grade. Its glass-passivated junction, -65 °C to +150 °C operating range, and MSL Level 1 rating make P4SMA30CA-E3/5A a robust foundation for automotive-grade designs when paired with appropriate qualification suffixes.
How does the bidirectional configuration of P4SMA30CA-E3/5A affect circuit layout?
The bidirectional nature of P4SMA30CA-E3/5A means no polarity marking is present, and both terminals function identically - simplifying layout by eliminating orientation constraints. Engineers place it across protected lines (e.g., between signal and ground, or across differential pairs), relying on symmetrical clamping behavior to handle transients regardless of voltage polarity, which reduces design iteration time and assembly errors.
What is the thermal resistance of P4SMA30CA-E3/5A, and how does it impact PCB design?
P4SMA30CA-E3/5A has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead (RθJL) of 30 °C/W. To maintain TJ ≤ 150 °C under worst-case 400 W pulse conditions, designers must use minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - as specified in the "Mounting Pad Layout" diagram on page 5 of datasheet 88367.
Does P4SMA30CA-E3/5A meet any international safety or flammability standards?
Yes, P4SMA30CA-E3/5A's molding compound meets UL 94 V-0 flammability rating, and the device carries Underwriters Laboratory Recognition (QVGQ2) under UL 497B for protector classification, with file number E136766. These certifications validate its suitability for end-equipment requiring certified surge protection in consumer, industrial, and telecom applications.
P4SMA30CA-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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 9.7A
- 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)
P4SMA30CA-E3/5A FAQ
1.How can I place an order for P4SMA30CA-E3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA30CA-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 P4SMA30CA-E3/5A reliable?
The price and inventory of P4SMA30CA-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 P4SMA30CA-E3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA30CA-E3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA30CA-E3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA30CA-E3/5A?
P4SMA30CA-E3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA30CA-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 P4SMA30CA-E3/5A?
For technical support, including P4SMA30CA-E3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA30CA-E3/5A requirements.
6.How does Aetrix verify that P4SMA30CA-E3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA30CA-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 P4SMA30CA-E3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA30CA-E3/5A?
All P4SMA30CA-E3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA30CA-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 P4SMA30CA-E3/5A part is unused and in its original packaging.
Return procedure for P4SMA30CA-E3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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