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Vishay General Semiconductor - Diodes Division P6SMB12CAHE3_A/I
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- Part No.:
- P6SMB12CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB12CAHE3_A/I.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,510
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Product details
Overview
P6SMB12CAHE3_A/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 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 a 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/I datasheet, P6SMB12CAHE3_A/I pinout, P6SMB12CAHE3_A/I application, or P6SMB12CAHE3_A/I equivalent, key selection criteria include bidirectional clamping performance, AEC-Q101 qualification for automotive use, SMB (DO-214AA) package compatibility, and thermal resistance (RθJA = 100 °C/W) under standard PCB pad layout.
Technical Context
This device 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 (<5.0 μA at 10.2 V), while its low incremental surge resistance enables fast response to ESD and inductive switching events.
The P6SMB12CAHE3_A/I is rated for 150 °C maximum junction temperature and meets J-STD-020 MSL Level 1 (260 °C reflow peak), with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102. It is AEC-Q101 qualified (automotive grade), distinguishing it from commercial-grade variants like P6SMB12CA-E3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 10.2 V - Maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown. |
| VBR (Breakdown) | 11.4–12.6 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping) | 16.7 V at 35.9 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; critical for downstream IC voltage tolerance. |
| PPPM | 600 W - Sustains high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure when mounted per recommended 0.2" × 0.2" copper pads. |
| IPPM | 35.9 A - Peak surge current capability; determines protection level against lightning-induced surges or inductive kickback. |
| TJ max. | 150 °C - Enables reliable operation in under-hood automotive environments and industrial enclosures without derating. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; requires minimum 5.0 mm × 5.0 mm copper pad per terminal for full power rating. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical two-terminal construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals function identically; conducts in either direction once VWM is exceeded - eliminates orientation concerns during placement. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces - supports PPAP and long-term reliability requirements. |
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy transients per ISO 7637-2 and IEC 61000-4-5 without degradation - suitable for 12 V and 24 V vehicle electrical systems. |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage stress on protected devices - improves margin for 3.3 V/5 V logic and automotive-grade microcontrollers. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles - no pre-baking required, reducing manufacturing complexity and cost. |
| Glass-passivated junction | Ensures stable leakage current (<5.0 μA) and consistent breakdown voltage across temperature and lifetime - critical for safety-critical systems. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller GPIOs from load dump and alternator ripple in body electronics. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt transients before reaching sensitive ICs. Use Value: Maintains signal integrity during 12 V system surges up to 600 W, enabling compliance with ISO 16750-2 and reducing need for additional filtering stages. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers exposed to relay coil flyback and field wiring noise. IC Role / Device Role / Timing Role: Fast-response transient suppressor located between terminal block and optocoupler input stage. Use Value: Limits clamped voltage to 16.7 V, ensuring optocoupler LED remains within safe forward voltage range and preventing false triggering. |
| Automotive Camera Sensor Interface | Telecom Power Supply Rail |
Use Scenario: Shielding MIPI CSI-2 data lines and power rails of rear-view cameras from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ < 200 pF at 0 V) placed adjacent to connector to minimize signal distortion. Use Value: Provides sub-1 ns response time and bidirectional protection without degrading high-speed video signal integrity. |
Use Scenario: Secondary overvoltage protection on 48 V telecom power distribution boards subject to lightning-induced surges. IC Role / Device Role / Timing Role: Standby clamping device parallel to primary DC-DC converter output, activated only during fault conditions. Use Value: Absorbs up to 600 W transient energy without latch-up, preserving system uptime and avoiding costly board-level resets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12CA | Same VWM (10.2 V) and VC (16.7 V), but lower PPPM (400 W); SMA package (smaller footprint, higher RθJA). | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); not AEC-Q101 qualified. | Select when space-constrained and automotive qualification is unnecessary. |
| SMCJ12CA | Higher PPPM (1500 W), same VWM/VC, larger SMC (DO-214AB) package; identical AEC-Q101 qualification. | Supports heavier-duty surge standards (e.g., ISO 7637-2 Pulse 5b); requires larger PCB area and thermal relief. | Select when system-level testing demands >600 W surge handling or extended lifetime under repetitive stress. |
Compared with SMAJ12CA and SMCJ12CA, the P6SMB12CAHE3_A/I delivers optimal balance of automotive qualification, 600 W surge capacity, and SMB footprint - making it ideal for space-limited yet mission-critical automotive and industrial modules where AEC-Q101 compliance and standardized reflow are mandatory.
Availability
P6SMB12CAHE3_A/I is available at Aetrix Electronics and suitable for automotive body control units, industrial PLC inputs, camera sensor interfaces, and telecom power supply rails requiring stable component supply with full traceability and lifecycle support.
Supply support for P6SMB12CAHE3_A/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The P6SMB series is engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 qualification, high surge immunity, and surface-mount manufacturability are essential.
FAQ
What does the "HE3_A/I" suffix mean in P6SMB12CAHE3_A/I?
The "HE3" denotes RoHS-compliant and AEC-Q101 qualified packaging; "A" indicates the revision code per Vishay's internal documentation; "I" specifies 3200-unit tape-and-reel delivery on 13-inch reels. This distinguishes P6SMB12CAHE3_A/I from commercial variants like P6SMB12CA-E3 and confirms its suitability for automotive production environments where qualification and traceability are mandatory.
Is P6SMB12CAHE3_A/I unidirectional or bidirectional?
P6SMB12CAHE3_A/I is a bidirectional TVS diode, as confirmed by the "CA" suffix and absence of cathode band marking. It provides symmetrical clamping for both positive and negative transients - essential for protecting AC-coupled signal lines, differential buses, and floating power domains where polarity cannot be assumed.
What is the maximum clamping voltage of P6SMB12CAHE3_A/I under surge conditions?
The maximum clamping voltage of P6SMB12CAHE3_A/I is 16.7 V at 35.9 A peak pulse current with a 10/1000 μs waveform, measured per Figure 1 in Vishay document 88370. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events and must be verified against downstream IC absolute maximum ratings.
Can P6SMB12CAHE3_A/I replace P6SMB12A in an existing design?
No - P6SMB12CAHE3_A/I is bidirectional while P6SMB12A is unidirectional; they differ in polarity marking, leakage behavior, and circuit integration. Substituting P6SMB12CAHE3_A/I for P6SMB12A would eliminate cathode orientation requirements but may alter leakage paths and require layout review. Always validate clamping symmetry and system-level surge response before replacement.
Does P6SMB12CAHE3_A/I meet automotive qualification standards?
Yes - P6SMB12CAHE3_A/I is explicitly AEC-Q101 qualified per Vishay's ordering information and mechanical data tables. This certification covers stress tests including temperature cycling, humidity bias, and high-temperature operating life, confirming its fitness for under-hood and chassis-mounted automotive electronics.
P6SMB12CAHE3_A/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:
- 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/I FAQ
1.How can I place an order for P6SMB12CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB12CAHE3_A/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_A/I reliable?
The price and inventory of P6SMB12CAHE3_A/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_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB12CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB12CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB12CAHE3_A/I?
P6SMB12CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB12CAHE3_A/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_A/I?
For technical support, including P6SMB12CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB12CAHE3_A/I requirements.
6.How does Aetrix verify that P6SMB12CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB12CAHE3_A/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_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB12CAHE3_A/I?
All P6SMB12CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB12CAHE3_A/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_A/I part is unused and in its original packaging.
Return procedure for P6SMB12CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB12CAHE3_A/I Tags
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