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Vishay General Semiconductor - Diodes Division P6SMB12AHE3_A/I
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- Part No.:
- P6SMB12AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB12AHE3_A/I.pdf
- Description:
- TVS DIODE 10.2VWM 16.7VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,120
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Product details
Overview
P6SMB12AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 12 V breakdown voltage (VBR = 11.4–12.6 V at IT = 1.0 mA), 10.2 V stand-off voltage (VWM), and clamps to ≤16.7 V at 35.9 A peak pulse current (10/1000 µs), delivering 600 W peak pulse power for automotive and industrial surge protection.
For engineers reviewing the P6SMB12AHE3_A/I datasheet, P6SMB12AHE3_A/I pinout, P6SMB12AHE3_A/I application, or P6SMB12AHE3_A/I equivalent, this AEC-Q101 qualified TVS offers validated transient immunity for 12 V rail protection, low incremental surge resistance, and RoHS-compliant matte tin-plated leads suitable for J-STD-002 soldering and automated placement.
Technical Context
This unidirectional TVS operates with a cathode-band polarity marking and exhibits fast response time (<1 ns), low clamping ratio (VC/VBR ≈ 1.38), and thermal resistance of RθJA = 100 °C/W. Its glass passivated junction ensures stable breakdown characteristics under repetitive surge stress.
The device is rated for TJ = –65 to +150 °C operation, supports 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), and meets MSL Level 1 per J-STD-020 with 260 °C peak reflow profile - confirming suitability for high-reliability surface-mount assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 11.4 V / 12.6 V at 1.0 mA test current - defines precise clamping onset threshold for 12 V systems |
| VWM | 10.2 V - maximum continuous reverse operating voltage before leakage exceeds 5.0 µA |
| VC @ IPPM | ≤16.7 V at 35.9 A (10/1000 µs) - actual clamped voltage seen by protected circuit during surge |
| PPPM | 600 W - peak transient energy absorption capability without failure under standardized waveform |
| IFSM | 100 A (8.3 ms half-sine) - withstands inrush or load-dump surges common in automotive 12 V networks |
| TJ max. | +150 °C - enables operation in under-hood or industrial environments with elevated ambient temperatures |
| Package | SMB (DO-214AA) - industry-standard 2-pin surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal (reverse-biased operation) | Connected to protected line; conducts only during overvoltage events to shunt surge to ground |
| Cathode | Current exit terminal (reverse-biased operation) | Connected to system ground or lower-potential reference; forms clamping path with anode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance per stress test plan |
| Glass passivated junction | Ensures stable VBR tolerance and low leakage drift across lifetime and temperature extremes |
| 600 W peak pulse rating (10/1000 µs) | Provides robust immunity against ISO 7637-2 Pulse 1, 2a, 3a/b, and IEC 61000-4-5 surge events |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture sensitivity concerns or baking requirements |
| Low clamping voltage (16.7 V) | Protects 12 V logic and power ICs (e.g., MCUs, CAN transceivers, PMICs) without exceeding absolute maximum ratings |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppresses load dump and alternator ripple transients on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp surges before they reach downstream regulators and microcontrollers. Use Value: Limits voltage excursion to ≤16.7 V during 35.9 A transients, preventing latch-up or gate oxide damage in 12 V-rated ICs. |
Use Scenario: Shields analog and digital signal lines (e.g., 4–20 mA loops, RS-485, LIN) from ESD and inductive switching noise in factory automation sensors. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to divert fast transients away from precision ADCs, op-amps, and interface ICs. Use Value: Sub-1 ns response and 16.7 V clamping prevent data corruption and false triggering in noise-sensitive measurement circuits. |
| Consumer Power Adapter Input Protection | Telecom DC Power Feed Protection |
Use Scenario: Protects AC/DC adapter primary-side rectifier and secondary-side DC bus from lightning-induced surges and hot-plug transients. IC Role / Device Role / Timing Role: Placed across input capacitor terminals to clamp differential-mode surges before reaching PWM controllers and MOSFETs. Use Value: 600 W rating absorbs multiple 10/1000 µs pulses without degradation, extending adapter field life in unstable grid environments. |
Use Scenario: Safeguards PoE-powered equipment (e.g., IP cameras, wireless APs) from surges entering via 48 V DC feed lines. IC Role / Device Role / Timing Role: TVS connected between DC+ and DC− lines to suppress common-mode transients induced by nearby lightning or switching noise. Use Value: 10.2 V VWM allows safe operation at nominal 48 V (with margin), while 16.7 V clamping protects 60 V-rated DC-DC converters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A | Same SMB package, identical VBR (11.4–12.6 V), but rated for 400 W PPPM and not AEC-Q101 qualified | Limited to commercial-grade consumer/industrial use; lacks automotive stress validation | Select SMAJ12A only when AEC-Q101 compliance is unnecessary and 400 W surge capacity suffices |
| 1.5SMC12A | Higher-power SMC package (7.11 mm × 6.22 mm), same VBR range, 1500 W PPPM, AEC-Q101 available in HE3 variant | Requires larger PCB area; suited for higher-energy transients where 600 W is marginal | Choose 1.5SMC12AHE3 when system-level surge testing exceeds IEC 61000-4-5 Level 4 or ISO 7637-2 Pulse 5a |
Compared with SMAJ12A and 1.5SMC12A, the P6SMB12AHE3_A/I delivers optimal balance of AEC-Q101 reliability, compact SMB footprint, and 600 W surge handling - making it the preferred choice for space-constrained automotive and industrial 12 V rail protection where qualification and form factor are critical.
Availability
P6SMB12AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom DC power feed applications requiring stable component supply, long-term lifecycle support, and AEC-Q101 traceability.
Supply support for P6SMB12AHE3_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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The P6SMB Series is engineered for high-energy transient suppression in automotive, industrial, and communications systems - delivering consistent clamping behavior, AEC-Q101 qualification, and robust surface-mount packaging for demanding environments.
FAQ
What is the clamping voltage of the P6SMB12AHE3_A/I under maximum surge conditions?
The P6SMB12AHE3_A/I clamps to a maximum of 16.7 V when subjected to its rated peak pulse current of 35.9 A (10/1000 µs waveform). This value is measured at the device terminals under standard test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads) and represents the upper limit of voltage imposed on the protected circuit during a transient event. The P6SMB12AHE3_A/I maintains this clamping performance across its specified junction temperature range.
Is the P6SMB12AHE3_A/I suitable for automotive applications?
Yes, the P6SMB12AHE3_A/I is AEC-Q101 qualified and explicitly designated for automotive use with the "HE3" suffix indicating RoHS-compliant and AEC-Q101 qualified construction. It has passed stress tests including temperature cycling, high-temperature reverse bias, and surge endurance per the AEC-Q101 standard. The P6SMB12AHE3_A/I is commonly deployed in body control modules, infotainment power supplies, and ADAS sensor interfaces where 12 V rail protection is required.
What does the "_A/I" suffix mean in P6SMB12AHE3_A/I?
The "_A/I" suffix in P6SMB12AHE3_A/I indicates packaging configuration: "A" denotes the base part revision level, and "I" specifies 13-inch diameter plastic tape and reel delivery with 3200 units per reel. This format complies with EIA-481 standards and is optimized for high-volume automated pick-and-place assembly. The P6SMB12AHE3_A/I is distinct from the "H" variant (7-inch reel, 750 units) and shares identical electrical and mechanical specifications.
How does the P6SMB12AHE3_A/I compare to bidirectional TVS diodes like P6SMB12CA?
The P6SMB12AHE3_A/I is unidirectional and intended for DC line protection where polarity is fixed (e.g., VBAT to GND), offering lower leakage and tighter VBR tolerance than bidirectional variants. In contrast, P6SMB12CA provides symmetrical clamping for AC or floating signal lines but exhibits higher reverse leakage above VWM. The P6SMB12AHE3_A/I is not interchangeable with P6SMB12CA without verifying circuit polarity and leakage constraints.
What is the thermal resistance and power derating behavior of the P6SMB12AHE3_A/I?
The P6SMB12AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended pad layout. Its peak pulse power must be derated linearly above TA = 25 °C - for example, at 85 °C ambient, maximum allowable PPPM drops to approximately 360 W. Continuous power dissipation (PD) is rated at 5.0 W at TA = 50 °C on infinite heatsink. These values are confirmed in the official Vishay P6SMB datasheet (Document Number: 88370).
P6SMB12AHE3_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:
- 1
- Bidirectional Channels:
- -
- 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)
P6SMB12AHE3_A/I FAQ
1.How can I place an order for P6SMB12AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB12AHE3_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 P6SMB12AHE3_A/I reliable?
The price and inventory of P6SMB12AHE3_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 P6SMB12AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB12AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB12AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB12AHE3_A/I?
P6SMB12AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB12AHE3_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 P6SMB12AHE3_A/I?
For technical support, including P6SMB12AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB12AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB12AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB12AHE3_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 P6SMB12AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB12AHE3_A/I?
All P6SMB12AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB12AHE3_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 P6SMB12AHE3_A/I part is unused and in its original packaging.
Return procedure for P6SMB12AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB12AHE3_A/I Tags
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