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Vishay General Semiconductor - Diodes Division P6SMB9.1CA-M3/52
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- Part No.:
- P6SMB9.1CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB9.1CA-M3/52.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,205
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Product details
Overview
P6SMB9.1CA-M3/52 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 9.1 V breakdown voltage (VBR = 8.65–9.55 V at IT = 1.0 mA), 13.4 V maximum clamping voltage (VC) at 44.8 A peak pulse current (IPPM), and 600 W peak pulse power capability with a 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P6SMB9.1CA-M3/52 datasheet, P6SMB9.1CA-M3/52 pinout, P6SMB9.1CA-M3/52 application, or P6SMB9.1CA-M3/52 equivalent, key selection criteria include bidirectional clamping symmetry, low clamping ratio (VC/VBR ≈ 1.47), halogen-free RoHS compliance (M3 suffix), and compatibility with automated SMT placement on standard PCB pads per J-STD-002.
Technical Context
The P6SMB9.1CA-M3/52 operates as a bidirectional avalanche diode, providing symmetrical clamping in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), enabling suppression of ESD and inductive switching transients before sensitive downstream circuitry is damaged.
Thermally, it exhibits RθJA = 100 °C/W and RθJL = 20 °C/W, with a maximum junction temperature of +150 °C and MSL Level 1 rating (peak reflow ≤260 °C). It delivers 600 W peak pulse power under 10/1000 µs waveform at TA = 25 °C, derating linearly above that ambient per Figure 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 8.65–9.55 V at 1.0 mA test current - defines precise voltage threshold where avalanche conduction begins in both directions |
| Clamping Voltage VC | 13.4 V at 44.8 A IPPM - maximum voltage seen by protected circuit during worst-case 10/1000 µs surge |
| Peak Pulse Power PPPM | 600 W (10/1000 µs waveform) - determines transient energy absorption capacity without failure |
| Stand-off Voltage VWM | 7.78 V - maximum continuous reverse working voltage before leakage exceeds 50 µA |
| Package | SMB (DO-214AA), 0.220" × 0.130" footprint - compatible with standard SMT pick-and-place and reflow profiles (MSL 1) |
| Construction | Halogen-free, RoHS-compliant, matte tin-plated leads - meets JESD 201 Class 2 whisker resistance and J-STD-002 solderability |
| Operating Temperature | −65 °C to +150 °C - supports extended-range operation in automotive under-hood and industrial control environments |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional device with no polarity marking. Cathode/anode terminals are symmetric; both ends function identically under reverse or forward bias during transient events.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient conduction path | Either terminal serves as input/output for clamping - no orientation required during placement |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against high-energy inductive load switching surges in motor drives and power supplies |
| Low clamping ratio (VC/VBR ≈ 1.47) | Minimizes overvoltage stress on protected ICs while maintaining margin above VWM |
| Glass-passivated junction | Ensures long-term stability of breakdown voltage and leakage performance across temperature and lifetime |
| MSL Level 1, 260 °C peak reflow | Supports single-pass lead-free reflow without preconditioning or special handling |
| Halogen-free, RoHS-compliant (M3 suffix) | Fulfills environmental compliance requirements for industrial and automotive end equipment |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector interface or IC pin to shunt transients before propagation. Use Value: Maintains signal integrity below 13.4 V during 44.8 A surges, preventing latch-up or damage to 5 V/3.3 V interface ICs. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Primary transient suppressor across input terminals, operating in parallel with optocoupler input stages. Use Value: Absorbs 600 W pulses without degradation, ensuring >100,000 surge cycles per IEC 61000-4-5 Level 4 compliance. |
| Consumer Power Adapter Protection | Telecom Line Interface Protection |
Use Scenario: Clamping induced transients on secondary-side DC outputs of AC/DC adapters powering USB-C PD or display interfaces. IC Role / Device Role / Timing Role: Secondary-side TVS placed between VOUT and GND to clamp output overvoltage events. Use Value: Fast <1 ns response limits overshoot to ≤13.4 V, protecting downstream USB PD controllers rated for 20 V max. |
Use Scenario: Protecting Ethernet PHY or DSL line drivers from lightning-induced surges entering via RJ-45 jacks. IC Role / Device Role / Timing Role: First-stage protection on differential pairs, paired with common-mode chokes and GDTs. Use Value: Symmetrical bidirectional clamping ensures equal protection on both conductors without polarity concerns. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A-E3/52 | Unidirectional; VBR = 10.0–11.1 V; VC = 14.4 V at 41.7 A; same SMB package | Requires correct polarity orientation; not suitable for AC-coupled or floating signal lines | Select when unidirectional clamping suffices and board layout allows cathode alignment |
| 1.5SMC9.1CA | Same VBR/VC specs but in larger SMC (DO-214AB) package; 1.5 kW rating; higher thermal mass | Occupies 30% more PCB area; better suited for high-repetition surge environments | Choose for higher reliability in harsh industrial settings where space permits larger footprint |
Compared with SMAJ9.0A-E3/52 and 1.5SMC9.1CA, the P6SMB9.1CA-M3/52 offers optimal balance of bidirectional functionality, compact SMB size, halogen-free compliance, and cost-effective 600 W surge handling - ideal for space-constrained consumer and automotive modules requiring polarity-agnostic protection.
Availability
P6SMB9.1CA-M3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and consumer power adapter designs requiring stable component supply, consistent M3-grade environmental compliance, and verified 600 W transient suppression performance.
Supply support for P6SMB9.1CA-M3/52 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, precision, and application-specific optimization.
The P6SMB Series is engineered for high-energy transient suppression in space-constrained surface-mount applications, targeting automotive, industrial, and telecom systems where robustness, repeatability, and regulatory compliance are critical.
FAQ
What is the clamping voltage of the P6SMB9.1CA-M3/52 under a 10/1000 µs surge?
The P6SMB9.1CA-M3/52 has a maximum clamping voltage (VC) of 13.4 V at 44.8 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and reflects the upper limit of voltage imposed on protected circuitry during worst-case transient events - critical for ensuring compatibility with 5 V or 3.3 V logic interfaces downstream of the P6SMB9.1CA-M3/52.
Is the P6SMB9.1CA-M3/52 suitable for automotive applications?
Yes, the P6SMB9.1CA-M3/52 is qualified to AEC-Q101 when ordered with HE3 or HM3 suffixes (e.g., P6SMB9.1CAHM3_B); however, the M3/52 variant itself is commercial-grade and not AEC-Q101 certified. For non-safety-critical automotive subsystems like infotainment or body electronics, the P6SMB9.1CA-M3/52 remains widely deployed due to its −65 °C to +150 °C operating range, MSL Level 1 reflow rating, and proven performance in load-dump and ESD testing per ISO 10605 and ISO 7637-2 - provided system-level validation confirms suitability for the specific P6SMB9.1CA-M3/52 implementation.
How does the bidirectional design of the P6SMB9.1CA-M3/52 affect PCB layout?
The P6SMB9.1CA-M3/52 has no polarity marking and functions identically in both directions, eliminating orientation constraints during PCB layout and automated assembly. Unlike unidirectional TVS diodes such as SMAJ9.0A, the P6SMB9.1CA-M3/52 can be placed across AC-coupled lines, differential pairs, or floating sensors without risk of reverse-bias misconnection - reducing design review cycles and assembly errors. Its SMB footprint (0.220" × 0.130") also aligns with standard IPC-7351B land patterns for DO-214AA.
What is the maximum steady-state power dissipation of the P6SMB9.1CA-M3/52?
The P6SMB9.1CA-M3/52 has a maximum steady-state power dissipation (PD) of 5.0 W at TA = 50 °C on an infinite heatsink. In typical PCB conditions (0.2" × 0.2" copper pads per terminal), derating applies above 25 °C ambient - e.g., ~4.0 W at 70 °C. This rating governs continuous leakage-related heating and must be considered alongside transient duty cycle; the P6SMB9.1CA-M3/52 is not intended for sustained DC power dissipation but rather for infrequent surge events with ≤0.01% duty cycle.
Does the P6SMB9.1CA-M3/52 meet lead-free and halogen-free compliance standards?
Yes, the "M3" suffix in P6SMB9.1CA-M3/52 explicitly denotes halogen-free, RoHS-compliant construction per JEDEC JS709 and IPC-1752. The device uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and passes JESD 201 Class 2 whisker testing. It satisfies major environmental mandates including EU RoHS Directive 2011/65/EU and China RoHS II, making the P6SMB9.1CA-M3/52 suitable for export-controlled and green-electronics programs.
P6SMB9.1CA-M3/52 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):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 44.8A
- 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)
P6SMB9.1CA-M3/52 FAQ
1.How can I place an order for P6SMB9.1CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB9.1CA-M3/52 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 P6SMB9.1CA-M3/52 reliable?
The price and inventory of P6SMB9.1CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB9.1CA-M3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB9.1CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB9.1CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB9.1CA-M3/52?
P6SMB9.1CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB9.1CA-M3/52 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 P6SMB9.1CA-M3/52?
For technical support, including P6SMB9.1CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB9.1CA-M3/52 requirements.
6.How does Aetrix verify that P6SMB9.1CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB9.1CA-M3/52 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 P6SMB9.1CA-M3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB9.1CA-M3/52?
All P6SMB9.1CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB9.1CA-M3/52, 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 P6SMB9.1CA-M3/52 part is unused and in its original packaging.
Return procedure for P6SMB9.1CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB9.1CA-M3/52 Tags
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