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Vishay General Semiconductor - Diodes Division P6SMB30CA-E3/52
- Part No.:
- P6SMB30CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30CA-E3/52.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB30CA-E3/52 from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 30 V standoff voltage (VWM), 33.3 V minimum breakdown voltage (VBR), 41.4 V maximum clamping voltage (VC) at 14.5 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs waveform). It protects MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P6SMB30CA-E3/52 datasheet, P6SMB30CA-E3/52 pinout, P6SMB30CA-E3/52 application, or P6SMB30CA-E3/52 equivalent, key selection considerations include bidirectional clamping capability, 41.4 V clamping voltage at rated surge current, RoHS-compliant matte tin-plated terminals, MSL Level 1 moisture sensitivity, and AEC-Q101 qualification availability in related variants.
Technical Context
This bidirectional TVS diode operates symmetrically across both polarities, enabling transient suppression without polarity constraints on AC-coupled or differential signal paths. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while low incremental surge resistance supports effective energy diversion during ESD or inductive switching events.
The device is rated for 150 °C maximum junction temperature and derates linearly above 25 °C ambient per Figure 2 in the datasheet. Thermal resistance from junction to ambient is 100 °C/W on standard 0.2" × 0.2" copper pads, and its SMB package meets UL 94 V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 30 V - Maximum continuous reverse voltage before significant conduction begins; defines operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 33.3–36.8 V at 1 mA - Voltage at which device enters avalanche breakdown; ensures reliable triggering above normal operating voltage. |
| VC (Clamping Voltage) | 41.4 V at 14.5 A (10/1000 μs) - Peak voltage seen by protected circuit during surge; determines stress level on downstream components. |
| IPPM (Peak Pulse Current) | 14.5 A - Maximum non-repetitive surge current the device can safely shunt without degradation. |
| PPPM (Peak Pulse Power) | 600 W - Energy-handling capacity under standardized 10/1000 μs waveform; enables robust protection against lightning and load dump. |
| ID (Max Reverse Leakage) | 1.0 μA at 30 V - Low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJmax | 150 °C - Maximum junction temperature rating; supports operation in under-hood automotive and industrial environments. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with 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 / Cathode (symmetrical) | Bidirectional terminal pair | Either terminal serves as anode or cathode depending on transient polarity; no DC bias dependency required. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges without cascaded staging. |
| Low clamping ratio (VC/VBR ≈ 1.24) | Minimizes overvoltage stress on protected ICs-critical for 3.3 V and 5 V logic interfaces. |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without pre-baking or special handling. |
| Glass-passivated junction | Ensures long-term stability of leakage current and breakdown voltage across temperature and life cycles. |
| UL 94 V-0 molding compound | Meets flame-retardancy requirements for industrial control panels and automotive ECUs. |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Analog Input Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed at connector entry point to divert transients before reaching signal conditioning circuitry. Use Value: Maintains signal fidelity under 12 V/24 V system surges up to ±100 V, with clamping voltage below 42 V to prevent damage to 3.3 V/5 V ADC front-ends. |
Use Scenario: Safeguarding 4–20 mA current loop and 0–10 V analog inputs in programmable logic controllers against field wiring faults and EFT bursts. IC Role / Device Role / Timing Role: Primary transient suppressor on input terminals, coordinated with series current-limiting resistors and filtering capacitors. Use Value: Limits induced voltage to ≤41.4 V during 1 kV/500 A surge events, preserving accuracy and longevity of precision op-amps and isolators. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Shielding Ethernet PHYs, DSL line drivers, and PoE injectors from lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: First-line bidirectional TVS on differential pairs (e.g., TX+/TX−), placed before common-mode chokes. Use Value: Clamps common-mode transients to <42 V while maintaining <0.5 pF junction capacitance at 0 V bias-preserving signal integrity up to 100 MHz. |
Use Scenario: Suppressing inductive kickback from brushed DC motors and solenoids in washing machines, HVAC actuators, and power tools. IC Role / Device Role / Timing Role: Parallel-connected TVS across motor terminals or H-bridge outputs to clamp flyback voltage spikes. Use Value: Absorbs 600 W peak energy from 100 ms inductive turn-off events, preventing gate oxide rupture in MOSFETs rated ≤50 V. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30CA | Same VWM (30 V), lower PPPM (400 W), SMA package (higher RθJA = 150 °C/W) | Limited to lower-energy transients; less suitable for automotive load dump or industrial 2 kV surges. | Select when board space is constrained and surge energy is ≤400 W; verify thermal margin with layout. |
| 1.5SMC33CA | Higher PPPM (1500 W), larger SMC package, VWM = 33 V, VC = 53.3 V at 28.3 A | Provides higher surge margin but increases clamping voltage-may exceed safe limits for 3.3 V logic rails. | Choose for heavy-duty industrial mains input protection where 53.3 V clamping is acceptable and PCB area allows SMC footprint. |
Compared with SMAJ30CA and 1.5SMC33CA, P6SMB30CA-E3/52 delivers optimal balance of 600 W surge capacity, 41.4 V clamping, and SMB footprint-making it preferred for space-constrained, medium-energy protection in automotive and industrial signal paths.
Availability
P6SMB30CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC analog inputs, telecom line card surge protection, and consumer appliance motor drive circuits requiring stable component supply and RoHS-compliant sourcing.
Supply support for P6SMB30CA-E3/52 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 P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems, delivering standardized 600 W surge capability in compact SMB packages with AEC-Q101 qualification options.
FAQ
What is the clamping voltage of P6SMB30CA-E3/52 at its rated peak pulse current?
The P6SMB30CA-E3/52 has a maximum clamping voltage (VC) of 41.4 V at 14.5 A peak pulse current (IPPM) under the 10/1000 μs waveform condition. This value is measured per the test method defined in Figure 1 of Vishay document 88370 and represents the upper voltage limit imposed on protected circuitry during a standardized surge event. The P6SMB30CA-E3/52 maintains this clamping performance consistently across its qualified operating temperature range.
Is P6SMB30CA-E3/52 suitable for automotive applications?
P6SMB30CA-E3/52 itself is RoHS-compliant and commercial-grade; however, the P6SMB30CA-HE3 variant (with AEC-Q101 qualification) is explicitly certified for automotive use. While P6SMB30CA-E3/52 shares identical electrical characteristics and SMB packaging, it lacks the extended temperature cycling, humidity testing, and failure rate validation required for AEC-Q101. For automotive designs, engineers should specify P6SMB30CA-HE3 or confirm qualification status with Vishay prior to release. The P6SMB30CA-E3/52 remains appropriate for industrial and consumer applications meeting its 150 °C TJmax rating.
What does the "CA" suffix indicate in P6SMB30CA-E3/52?
The "CA" suffix in P6SMB30CA-E3/52 denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., P6SMB30A), the CA version has no cathode marking and functions identically regardless of polarity applied across its terminals. This makes P6SMB30CA-E3/52 ideal for protecting AC-coupled signals, differential buses like RS-485 or CAN, and any circuit where transient polarity cannot be predetermined. The clamping behavior and all electrical specs apply equally in both directions.
How does the SMB package of P6SMB30CA-E3/52 compare to SMA or SMC in thermal performance?
The SMB (DO-214AA) package of P6SMB30CA-E3/52 offers a thermal resistance of 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads-lower than SMA's typical 150 °C/W but higher than SMC's ~60 °C/W. This positions P6SMB30CA-E3/52 for moderate-power surge handling where board space is limited but thermal dissipation must exceed SMA capabilities. Its SMB footprint also enables automated placement compatibility and better power density than SMA, while remaining smaller than SMC. Engineers using P6SMB30CA-E3/52 should ensure minimum pad dimensions per Vishay's recommended layout to achieve rated thermal performance.
What is the maximum reverse leakage current for P6SMB30CA-E3/52 at its rated standoff voltage?
The P6SMB30CA-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 μA at its rated standoff voltage of 30 V (VWM), measured at 25 °C ambient. This low leakage ensures minimal impact on high-impedance sensor circuits and battery-powered systems, preserving signal accuracy and extending operational life. Leakage remains within specification up to 125 °C, with gradual increase per temperature coefficient data in the P6SMB series datasheet. The P6SMB30CA-E3/52 achieves this performance via glass passivation of its silicon junction, contributing to long-term stability in harsh environments.
P6SMB30CA-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, 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):
- 14.5A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMB)
P6SMB30CA-E3/52 FAQ
1.How can I place an order for P6SMB30CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30CA-E3/52 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 P6SMB30CA-E3/52 reliable?
The price and inventory of P6SMB30CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB30CA-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB30CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30CA-E3/52?
P6SMB30CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30CA-E3/52 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 P6SMB30CA-E3/52?
For technical support, including P6SMB30CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30CA-E3/52 requirements.
6.How does Aetrix verify that P6SMB30CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB30CA-E3/52 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 P6SMB30CA-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB30CA-E3/52?
All P6SMB30CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30CA-E3/52, 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 P6SMB30CA-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB30CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30CA-E3/52 Tags
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