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Vishay General Semiconductor - Diodes Division P6SMB47CA-M3/5B
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- Part No.:
- P6SMB47CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB47CA-M3/5B.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,197
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Product details
Overview
P6SMB47CA-M3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 40.2 V stand-off voltage (VWM), 44.7–49.4 V breakdown voltage (VBR) at 1 mA test current, 64.8 V maximum clamping voltage (VC) at 9.3 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 µs waveform - used in automotive sensor interfaces, industrial I/O protection, and telecom line surge suppression.
For engineers reviewing the P6SMB47CA-M3/5B datasheet, P6SMB47CA-M3/5B pinout, P6SMB47CA-M3/5B application, or P6SMB47CA-M3/5B equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, thermal derating curves, AEC-Q101 qualification status, and halogen-free RoHS-compliant construction per M3 suffix - critical for ESD/surge co-design in safety-critical embedded systems.
Technical Context
The P6SMB47CA-M3/5B operates as a symmetrical bidirectional TVS, with identical clamping characteristics in both polarities - no cathode/anode marking required. Its glass-passivated junction enables fast response time (<1 ns) and low incremental surge resistance, supporting repetitive transient suppression at 0.01% duty cycle.
Thermal performance is defined by RθJA = 100 °C/W (junction-to-ambient, typical) and RθJL = 20 °C/W (junction-to-lead), with maximum operating junction temperature of +150 °C. It meets J-STD-020 MSL Level 1 and withstands 260 °C lead-free reflow peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 40.2 V - maximum continuous reverse voltage before significant leakage; defines safe operating window for protected circuitry |
| VBR (Breakdown) | 44.7–49.4 V at 1 mA - sharp avalanche onset ensures predictable clamping initiation across production lot |
| VC (Clamping) | 64.8 V at 9.3 A (10/1000 µs) - limits transient voltage seen by downstream ICs to within safe margin of their absolute max ratings |
| PPPM | 600 W - peak transient energy absorption capacity under standardized surge waveform; enables robustness against IEC 61000-4-5 Level 3/4 surges |
| IPPM | 9.3 A - peak surge current handled at rated clamping voltage; derived from 600 W / 64.8 V calculation and confirmed in datasheet table |
| TJ max | +150 °C - maximum junction temperature rating; supports operation in under-hood automotive and industrial ambient environments |
| Package | SMB (DO-214AA) - surface-mount outline with 5.59 mm × 4.06 mm footprint; optimized for automated placement and 0.2" × 0.2" copper pad thermal relief |
Pinout & Package
SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, UL 94 V-0 flammability rating, and J-STD-002/JESD 22-B102 solderability compliance. Bidirectional configuration has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (symmetrical) | Bidirectional conduction path - either terminal serves as anode or cathode depending on transient polarity; no functional distinction |
| Terminal 2 | Anode / Cathode (symmetrical) | Identical to Terminal 1; device functions identically regardless of orientation in PCB layout |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection against high-energy surges per IEC 61000-4-5 without external series impedance |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for automotive and industrial end equipment without compromising surge robustness |
| AEC-Q101 qualified (with _B revision) | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - applicable to P6SMB47CA-M3/5B per ordering note |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for sensitive 3.3 V or 5 V logic interfaces |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT assembly without moisture sensitivity concerns or baking requirements |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before it reaches interface ICs. Use Value: Maintains signal integrity during 12 V/24 V system transients while meeting AEC-Q101 stress test requirements. |
Use Scenario: Safeguarding PLC digital input modules against induced surges from relay coil switching and motor drive noise. IC Role / Device Role / Timing Role: Fast-acting voltage clamp on 24 V DC input lines, operating in parallel with optocoupler input stages. Use Value: Prevents false triggering and latch-up in microcontroller GPIOs by limiting transient overvoltage to ≤64.8 V. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Surge suppression on Ethernet PHY magnetics secondary side or RS-485 data lines exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary transient suppressor on differential pair, coordinated with common-mode chokes for balanced protection. Use Value: Delivers <65 V clamping at 9.3 A while maintaining low capacitance (<100 pF at 0 V) to preserve signal rise/fall times. |
Use Scenario: Secondary-side overvoltage protection on 5 V/9 V USB-C adapter output rails against capacitor discharge events and hot-plug transients. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after DC-DC converter output filter to absorb residual ripple-induced spikes. Use Value: Ensures downstream USB PD controllers remain within 6.5 V absolute maximum rating during transient conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ45CA | 45 V VWM, 49.9–55.1 V VBR, 73 V VC at 8.2 A, SMA package (smaller footprint, lower thermal mass) | Lower peak power (400 W), higher clamping voltage - less margin for 5 V rail protection but suitable for space-constrained layouts | Select when board area is constrained and 73 V clamping is acceptable for protected IC's voltage rating |
| 1.5KE47CA | 47 V VWM, 52.2–57.7 V VBR, 77 V VC at 7.8 A, DO-201 package (through-hole, higher thermal inertia) | Higher VC and larger form factor - better for high-reliability through-hole assemblies but incompatible with SMT-only processes | Choose for legacy through-hole designs or where higher thermal mass improves long-duration surge handling |
Compared with SMAJ45CA and 1.5KE47CA, the P6SMB47CA-M3/5B offers superior clamping ratio (64.8 V / 40.2 V = 1.61), halogen-free compliance, and AEC-Q101 qualification - making it optimal for new automotive and industrial SMT designs requiring validated reliability and precise voltage limiting.
Availability
P6SMB47CA-M3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial digital I/O protection, and telecom line surge suppression requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification.
Supply support for P6SMB47CA-M3/5B 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 is engineered for high-power transient suppression in automotive, industrial, and telecom systems - delivering consistent clamping performance, AEC-Q101 validation, and surface-mount scalability across 6.8 V to 540 V standoff voltages.
FAQ
What does the "CA" suffix indicate in P6SMB47CA-M3/5B?
The "CA" suffix denotes a bidirectional configuration - meaning the P6SMB47CA-M3/5B provides symmetrical transient suppression in both polarities, with identical VBR, VC, and IPPM characteristics regardless of voltage polarity. This eliminates polarity marking on the SMB package and simplifies layout for AC-coupled or differential signal lines. The P6SMB47CA-M3/5B is not polarity-sensitive, unlike unidirectional variants such as P6SMB47A-M3/5B.
Is P6SMB47CA-M3/5B AEC-Q101 qualified?
Yes - the P6SMB47CA-M3/5B is AEC-Q101 qualified when ordered with the "_B" revision code (e.g., P6SMB47CA-M3/5B_B), as confirmed in the Vishay datasheet footnote: "_B is available for P6SMB6.8(C)A to P6SMB220(C)A, AEC-Q101 qualified." The M3/5B tape-and-reel packaging supports this qualification, and the device meets stress tests including HTGB, H3TRB, and surge endurance per AEC-Q101 Rev D.
What is the maximum clamping voltage of P6SMB47CA-M3/5B and at what current is it specified?
The maximum clamping voltage (VC) of the P6SMB47CA-M3/5B is 64.8 V, measured at a peak pulse current (IPPM) of 9.3 A using the standardized 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range and reflects worst-case clamping performance under surge conditions - critical for ensuring downstream ICs remain within their absolute maximum voltage ratings.
How does the M3 suffix differ from E3 in P6SMB47CA-M3/5B?
The M3 suffix in P6SMB47CA-M3/5B indicates halogen-free, RoHS-compliant construction with whisker-resistant matte tin plating, meeting JESD 201 Class 2. In contrast, the E3 suffix denotes standard RoHS compliance without halogen-free assurance. Both meet commercial-grade reliability, but M3 is required for automotive and green-electronics programs where brominated flame retardants and halogen content are restricted - the P6SMB47CA-M3/5B satisfies both environmental and performance requirements.
Can P6SMB47CA-M3/5B be used in place of a unidirectional TVS like P6SMB47A-M3/5B?
No - the P6SMB47CA-M3/5B is strictly bidirectional and cannot replace unidirectional types like P6SMB47A-M3/5B in DC-biased circuits where forward conduction must be blocked. While both share identical VWM (40.2 V) and VBR range, the unidirectional variant conducts only in reverse bias and blocks forward current, whereas the CA version conducts symmetrically. Substitution requires verifying circuit topology: use P6SMB47CA-M3/5B only for AC, differential, or floating-node protection.
P6SMB47CA-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.8V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- 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 (SMBJ)
P6SMB47CA-M3/5B FAQ
1.How can I place an order for P6SMB47CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB47CA-M3/5B 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 P6SMB47CA-M3/5B reliable?
The price and inventory of P6SMB47CA-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB47CA-M3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB47CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB47CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB47CA-M3/5B?
P6SMB47CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB47CA-M3/5B 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 P6SMB47CA-M3/5B?
For technical support, including P6SMB47CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB47CA-M3/5B requirements.
6.How does Aetrix verify that P6SMB47CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB47CA-M3/5B 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 P6SMB47CA-M3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB47CA-M3/5B?
All P6SMB47CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB47CA-M3/5B, 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 P6SMB47CA-M3/5B part is unused and in its original packaging.
Return procedure for P6SMB47CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB47CA-M3/5B Tags
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