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Vishay General Semiconductor - Diodes Division P6SMB12CAHE3_B/I
- Part No.:
- P6SMB12CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB12CAHE3_B/I.pdf
- Description:
- 600W,12V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,882
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Product details
Overview
P6SMB12CAHE3_B/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or 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 a 10/1000 μs waveform. It is AEC-Q101 qualified and used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial electronics.
For engineers reviewing the P6SMB12CAHE3_B/I datasheet, P6SMB12CAHE3_B/I pinout, P6SMB12CAHE3_B/I application, or P6SMB12CAHE3_B/I equivalent, key selection criteria include bidirectional clamping behavior, 12 V working voltage, SMB (DO-214AA) package compatibility, AEC-Q101 qualification status, and 600 W surge handling under standardized transient conditions.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping positive and negative transients above its breakdown voltage range of 13.3–14.7 V at 1 mA test current. Its low incremental surge resistance and fast response time ensure effective suppression of ESD and inductive switching spikes without significant voltage overshoot.
The P6SMB12CAHE3_B/I uses a glass-passivated junction and is rated for 150 °C maximum junction temperature. It meets MSL Level 1 per J-STD-020 with a 260 °C reflow peak, and its matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 12 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin for protected circuitry. |
| VBR (Breakdown Voltage) | 13.3–14.7 V at 1 mA - Voltage at which avalanche conduction initiates; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 16.7 V at 35.9 A IPPM - Maximum voltage seen by downstream circuit during 10/1000 μs surge; limits stress on sensitive components. |
| PPPM (Peak Pulse Power) | 600 W - Surge energy handling capacity under standard 10/1000 μs waveform; supports robust protection in harsh environments. |
| Package | SMB (DO-214AA) - Surface-mount outline with 0.220" × 0.130" footprint; compatible with automated placement and IPC-7351B land patterns. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per AEC specification. |
| Thermal Resistance | RθJA = 100 °C/W - Junction-to-ambient thermal performance on standard 0.2" × 0.2" copper pads; informs derating above 25 °C ambient. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminal configuration with cathode/anode terminals interchangeable for AC transient suppression.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Provides low-impedance path for negative-going surges; electrically identical to cathode in bidirectional operation. |
| Cathode | Transient return path (bidirectional) | Provides low-impedance path for positive-going surges; functionally indistinguishable from anode due to symmetrical construction. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 600 W peak pulse power (10/1000 μs) | Supports high-energy surge events common in automotive load-dump and industrial motor-switching environments. |
| AEC-Q101 qualification | Confirms suitability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking; simplifies SMT manufacturing flow. |
| Glass-passivated junction | Enhances long-term reliability and stability under thermal cycling and humidity exposure. |
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 ESD and load-dump transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed across differential signal pair or supply rail to limit transient overvoltage. Use Value: Prevents latch-up or permanent damage to 12 V-rated transceivers while maintaining signal integrity below 16.7 V clamping threshold. |
Use Scenario: Safeguarding digital input/output channels of programmable logic controllers against inductive kickback from solenoids and relays. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on 24 V DC I/O lines to absorb repetitive 600 W surges without degradation. Use Value: Extends field service life by eliminating false triggering and component failure caused by >1 kV transients. |
| Consumer Power Adapter Input | Telecom Line Interface |
Use Scenario: Input-stage surge protection for AC-DC adapters subjected to lightning-induced surges on mains-connected secondary-side circuits. IC Role / Device Role / Timing Role: Secondary-side clamping device across DC output rails to suppress coupled transients entering from primary side. Use Value: Maintains UL/IEC compliance by limiting output overvoltage to <17 V during 10/1000 μs surges, preventing downstream capacitor overstress. |
Use Scenario: Protection of Ethernet PHY interfaces and DSL line drivers against induced surges on twisted-pair telecom lines. IC Role / Device Role / Timing Role: Bidirectional TVS mounted across differential data pairs to clamp common-mode transients without distorting signal waveform. Use Value: Preserves signal fidelity up to 100 MHz by minimizing junction capacitance (<100 pF at 0 V) while delivering 600 W surge immunity. |
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 12 V VWM and bidirectional configuration, but lower 400 W PPPM rating and SMA package (smaller thermal mass). | Less suitable for high-repetition-rate industrial surges; preferred where board space is constrained and surge energy is ≤400 W. | Select SMAJ12CA only when PCB area is critical and peak surge energy remains within 400 W limits. |
| 1.5KE12CA | Through-hole TO-204AA (DO-15) package, same 12 V VWM and 600 W rating, but higher RθJA (~50 °C/W on larger pads) and no AEC-Q101 qualification. | Not suitable for automotive production; acceptable for prototyping or non-automotive industrial use where manual assembly is acceptable. | Choose 1.5KE12CA for cost-sensitive, non-automotive applications requiring identical electrical specs but tolerating through-hole assembly. |
Compared with SMAJ12CA and 1.5KE12CA, the P6SMB12CAHE3_B/I uniquely combines AEC-Q101 qualification, SMB surface-mount compatibility, and full 600 W surge capability-making it the only option qualified for volume automotive SMT production without derating or layout compromise.
Availability
P6SMB12CAHE3_B/I is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O modules, and telecom line interface protection requiring stable component supply, AEC-Q101 compliance, and consistent SMB package form factor.
Supply support for P6SMB12CAHE3_B/I 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, and protection devices with emphasis on reliability, precision, and automotive-grade validation.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems, with design focus on standardized surge immunity (IEC 61000-4-5), AEC-Q101 qualification, and seamless SMT integration.
FAQ
What is the clamping voltage of P6SMB12CAHE3_B/I at its rated peak pulse current?
The P6SMB12CAHE3_B/I has a maximum clamping voltage (VC) of 16.7 V at 35.9 A peak pulse current (IPPM), measured under the standard 10/1000 μs waveform. This value ensures downstream components rated for 16 V or higher remain within safe operating limits during transient events. The clamping performance is verified per Figure 1 and Table on page 2 of Vishay document 88370.
Is P6SMB12CAHE3_B/I suitable for automotive applications?
Yes, P6SMB12CAHE3_B/I is AEC-Q101 qualified, as confirmed by the "HE3_B" suffix and documentation on page 3 of Vishay's P6SMB datasheet (88370). It undergoes stress testing for temperature cycling, humidity bias, and mechanical shock required for automotive under-hood and body electronics. Its SMB package and MSL Level 1 rating further support reflow-compatible automotive manufacturing.
How does the bidirectional configuration of P6SMB12CAHE3_B/I affect its circuit placement?
The bidirectional configuration of P6SMB12CAHE3_B/I means it has no polarity marking and can be placed across any two nodes requiring symmetrical overvoltage protection-such as differential signal lines, AC power rails, or floating sensor outputs. Unlike unidirectional TVS diodes, P6SMB12CAHE3_B/I does not require orientation verification during placement, reducing SMT programming and inspection overhead.
What is the thermal resistance of P6SMB12CAHE3_B/I, and how does it impact power derating?
P6SMB12CAHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads per Figure 2 in the datasheet. This value requires linear derating of its 5.0 W steady-state power dissipation above 25 °C ambient-e.g., to ~3.5 W at 65 °C ambient-ensuring safe operation in enclosed industrial enclosures or under-hood automotive locations.
Does P6SMB12CAHE3_B/I meet RoHS and halogen-free requirements?
Yes, P6SMB12CAHE3_B/I carries the "HE3" suffix, indicating it is RoHS-compliant and AEC-Q101 qualified. Per page 1 of the datasheet, "Base P/NHE3_X" denotes RoHS-compliant and AEC-Q101 qualified parts. It is not halogen-free; for halogen-free + AEC-Q101, the "HM3" variant (e.g., P6SMB12CAHM3_B/I) would be required.
P6SMB12CAHE3_B/I 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):
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB12CAHE3_B/I FAQ
1.How can I place an order for P6SMB12CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB12CAHE3_B/I 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_B/I reliable?
The price and inventory of P6SMB12CAHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB12CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB12CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB12CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB12CAHE3_B/I?
P6SMB12CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB12CAHE3_B/I 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_B/I?
For technical support, including P6SMB12CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB12CAHE3_B/I requirements.
6.How does Aetrix verify that P6SMB12CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB12CAHE3_B/I 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_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB12CAHE3_B/I?
All P6SMB12CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB12CAHE3_B/I, 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_B/I part is unused and in its original packaging.
Return procedure for P6SMB12CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB12CAHE3_B/I Tags
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