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Vishay General Semiconductor - Diodes Division P6SMB12CAHE3_A/H
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- Part No.:
- P6SMB12CAHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB12CAHE3_A/H.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
P6SMB12CAHE3_A/H 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 12 V standoff voltage (VWM), 16.7 V maximum clamping voltage at 35.9 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the P6SMB12CAHE3_A/H datasheet, P6SMB12CAHE3_A/H pinout, P6SMB12CAHE3_A/H application, or P6SMB12CAHE3_A/H equivalent, key selection criteria include bidirectional clamping performance, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT assembly on standard PCB pad layouts.
Technical Context
The P6SMB12CAHE3_A/H operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<5 μA at 10.2 V), while its 150 °C max junction temperature supports operation in under-hood automotive environments.
Designed for repetitive surge suppression, it delivers 600 W peak pulse power per 10/1000 μs waveform at 0.01 % duty cycle, with fast response time (<1.0 ns) and low incremental surge resistance - enabling effective protection against ESD, lightning-induced surges, and inductive switching spikes in DC power rails and analog sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 10.2 V - Maximum continuous reverse voltage before clamping begins; defines safe operating window for protected circuitry. |
| VBR (Breakdown) | 11.4–12.6 V at 1 mA - Verified avalanche onset range; ensures predictable, repeatable clamping threshold. |
| VC (Clamping) | 16.7 V at 35.9 A - Maximum voltage seen by downstream components during worst-case 10/1000 μs surge; critical for IC I/O voltage margining. |
| PPPM | 600 W - Peak transient energy absorption capacity; enables robust protection against IEC 61000-4-5 Level 3/4 surges. |
| ID (Leakage) | <5.0 μA at 10.2 V - Ultra-low reverse leakage preserves signal integrity and battery life in always-on sensor nodes. |
| TJ max | 150 °C - Enables use in AEC-Q101-compliant automotive applications including engine control and body electronics. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; requires minimum 5.0 mm × 5.0 mm copper pads per terminal for rated power handling. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional device with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated terminals, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Identical terminals - bidirectional clamping allows connection across any two points needing overvoltage protection without orientation concern. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock - required for under-hood ECUs and ADAS sensors. |
| 600 W peak pulse power | Supports IEC 61000-4-5 4th edition surge immunity up to 4 kV (open-circuit) on 2 Ω source impedance lines. |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot during transients - critical for protecting 3.3 V or 5 V logic interfaces with tight absolute maximum ratings. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns or baking requirements. |
| Glass passivated junction | Ensures long-term stability of breakdown voltage and leakage current across 15-year automotive service life. |
Applications
| Automotive Body Control Module | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Protecting LIN bus transceiver inputs and microcontroller GPIOs from load-dump and jump-start induced transients in door modules and lighting controllers. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt surge energy before reaching sensitive ASICs. Use Value: Maintains <16.7 V clamping under 35.9 A surge, preserving 5 V rail integrity and preventing latch-up in 32-bit MCUs compliant with ISO 16750-2. |
Use Scenario: Safeguarding 4–20 mA current loop receiver circuits from field wiring surges caused by relay coil switching or nearby motor drives. IC Role / Device Role / Timing Role: Parallel-connected TVS across input terminals to clamp common-mode transients before precision op-amps and ADC front-ends. Use Value: Low 5 μA leakage avoids measurement error in high-impedance current sense paths; 100 °C/W RθJA enables reliable operation in sealed enclosures at 70 °C ambient. |
| Consumer Smart Home Sensor Hub | Telecom Power Supply Input Stage |
Use Scenario: Shielding I²C and UART lines connecting environmental sensors (temperature, humidity) to host MCU from ESD events during handling or cable coupling. IC Role / Device Role / Timing Role: Localized TVS at each sensor interface to limit transient propagation and preserve signal fidelity at 100 kHz–400 kHz data rates. Use Value: Sub-ns response time prevents data corruption; bidirectional symmetry eliminates routing constraints on differential or shared-bus topologies. |
Use Scenario: Secondary-side transient suppression on +12 V DC output rails feeding PoE-powered devices and baseband processors. IC Role / Device Role / Timing Role: Final-stage clamping device after bulk filtering and before LDO regulators to prevent overvoltage damage during AC line disturbances. Use Value: 600 W rating handles repetitive surges from upstream SMPS instability; RoHS-compliant HE3 suffix meets telecom sustainability mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12CA | Same SMB package, 12 V VWM, but lower 400 W PPPM rating and non-AEC-Q101 qualified. | Limited to commercial-grade consumer/industrial equipment without automotive qualification requirements. | Select when cost sensitivity outweighs AEC-Q101 compliance and 600 W surge margin is not required. |
| 1.5KE12CA | Through-hole DO-15 package, same 12 V VWM and 600 W rating, but higher RθJA (75 °C/W) and no MSL Level 1 rating. | Suitable for prototyping or legacy through-hole designs; incompatible with automated SMT lines. | Choose only for manual assembly or where board space permits larger footprint and thermal management differs. |
Compared with SMAJ12CA and 1.5KE12CA, the P6SMB12CAHE3_A/H uniquely combines AEC-Q101 qualification, 600 W SMT-rated surge capability, and MSL Level 1 process compatibility - making it the sole option for production automotive electronics requiring zero rework risk and validated lifetime reliability.
Availability
P6SMB12CAHE3_A/H is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC analog I/O protection, smart home sensor hubs, and telecom DC power supply input stages requiring stable component supply with full traceability and lifecycle continuity.
Supply support for P6SMB12CAHE3_A/H 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 passive components with emphasis on high-reliability, automotive-qualified, and industry-standard solutions.
The P6SMB Series targets robust transient suppression in space-constrained, high-volume applications - engineered specifically for AEC-Q101 compliance, automated SMT assembly, and stable clamping performance across extended temperature ranges.
FAQ
What does the "HE3_A/H" suffix mean in P6SMB12CAHE3_A/H?
The "HE3" denotes RoHS-compliant and AEC-Q101 qualified construction; "_A" indicates revision level A; "/H" specifies packaging in 7" diameter plastic tape and reel with 750 units per reel. This suffix confirms the P6SMB12CAHE3_A/H meets automotive reliability standards and is optimized for high-speed SMT placement.
Is P6SMB12CAHE3_A/H unidirectional or bidirectional?
P6SMB12CAHE3_A/H is a bidirectional TVS diode, as indicated by the "CA" suffix. It provides symmetrical clamping in both polarities with no cathode marking - ideal for protecting AC-coupled signals, differential buses, or DC lines where polarity reversal may occur during fault conditions.
What is the maximum clamping voltage of P6SMB12CAHE3_A/H under surge conditions?
The P6SMB12CAHE3_A/H has a maximum clamping voltage (VC) of 16.7 V at 35.9 A peak pulse current with a 10/1000 μs waveform. This value is guaranteed per datasheet Table on page 2 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Can P6SMB12CAHE3_A/H replace P6SMB12A in a design?
No - P6SMB12A is unidirectional, while P6SMB12CAHE3_A/H is bidirectional. Replacing one with the other changes circuit behavior: the unidirectional version blocks reverse current and conducts only in forward surge direction, whereas the CA version clamps equally in both directions. Direct substitution requires schematic and layout review.
Does P6SMB12CAHE3_A/H require special PCB layout considerations?
Yes - to achieve rated 600 W pulse power, the P6SMB12CAHE3_A/H must be mounted on minimum 5.0 mm × 5.0 mm copper pads per terminal (per datasheet Fig. 6). Narrow traces or insufficient copper reduce thermal dissipation and degrade clamping performance during repetitive surges.
P6SMB12CAHE3_A/H 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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 10.2V
- Voltage - Breakdown (Min):
- 11.4V
- Voltage - Clamping (Max) @ Ipp:
- 16.7V
- Current - Peak Pulse (10/1000µs):
- 35.9A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB12CAHE3_A/H FAQ
1.How can I place an order for P6SMB12CAHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB12CAHE3_A/H 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 P6SMB12CAHE3_A/H reliable?
The price and inventory of P6SMB12CAHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB12CAHE3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB12CAHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB12CAHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB12CAHE3_A/H?
P6SMB12CAHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB12CAHE3_A/H 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 P6SMB12CAHE3_A/H?
For technical support, including P6SMB12CAHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB12CAHE3_A/H requirements.
6.How does Aetrix verify that P6SMB12CAHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB12CAHE3_A/H 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 P6SMB12CAHE3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB12CAHE3_A/H?
All P6SMB12CAHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB12CAHE3_A/H, 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 P6SMB12CAHE3_A/H part is unused and in its original packaging.
Return procedure for P6SMB12CAHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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