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Vishay General Semiconductor - Diodes Division P6SMB12AHE3_B/I
- Part No.:
- P6SMB12AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB12AHE3_B/I.pdf
- Description:
- 600W,12V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:3,955
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Product details
Overview
P6SMB12AHE3_B/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 12 V breakdown voltage (VBR = 11.4–12.6 V at IT = 1.0 mA), 16.7 V maximum clamping voltage at 35.9 A peak pulse current, and 600 W peak pulse power with 10/1000 μs waveform. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in automotive and industrial power rails.
For engineers reviewing the P6SMB12AHE3_B/I datasheet, P6SMB12AHE3_B/I pinout, P6SMB12AHE3_B/I application, or P6SMB12AHE3_B/I equivalent, this AEC-Q101 qualified TVS offers verified unidirectional clamping performance, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive PCB designs requiring robust overvoltage protection without layout redesign.
Technical Context
This device operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold (VBR = 11.4–12.6 V), then clamping transient energy to ≤16.7 V at 35.9 A. Its glass-passivated junction ensures stable leakage (<5.0 μA at VWM = 10.2 V) and fast response time (<1.0 ns).
Designed for surface-mount assembly on standard 0.2" × 0.2" copper pads, it delivers 600 W peak pulse power under repetitive 0.01% duty cycle conditions and supports operating junction temperatures from –65 °C to +150 °C. The matte tin-plated leads comply with J-STD-002 and JESD 22-B102 solderability standards.
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 avalanche initiation window for repeatable clamping onset |
| VWM | 10.2 V - maximum continuous reverse working voltage before leakage rises above 5.0 μA |
| VC @ IPPM | 16.7 V at 35.9 A - clamped voltage during 600 W transient, limiting downstream stress on protected ICs |
| PPPM | 600 W with 10/1000 μs waveform - sustains high-energy surges common in automotive load-dump and inductive kick scenarios |
| TJ max | +150 °C - enables operation in under-hood automotive environments and industrial enclosures without derating |
| Package | SMB (DO-214AA) - industry-standard SMD outline with 0.220" × 0.130" footprint, compatible with automated pick-and-place |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity indicated by cathode band. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); mounting pad layout per Vishay spec: 5.59 mm × 5.0 mm copper area per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path (cathode-banded end is negative) | Connected to system ground or low-side return; completes clamping path during overvoltage events |
| Cathode | Avalanche conduction terminal | Connected to protected line (e.g., 12 V rail); conducts reverse current when VIN > VBR, shunting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Handles automotive load-dump transients up to ISO 7637-2 Pulse 5a without failure |
| AEC-Q101 qualification | Validated for automotive electronics including engine control units and body modules |
| Glass passivated junction | Ensures stable VBR tolerance (±5%) and low leakage (<5 μA) across temperature and lifetime |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking |
| Low clamping ratio (VC/VBR ≈ 1.4) | Minimizes voltage overshoot during clamping, protecting 12 V-rated logic and analog ICs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump transients (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 12 V. Use Value: Limits peak voltage to 16.7 V during 35.9 A transients, preventing damage to microcontrollers and CAN transceivers. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between signal line and ground, preserving signal integrity up to 1 MHz. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) within <1 ns while adding <1 pF parasitic capacitance. |
| Consumer Power Adapter Input Stage | Telecom DC Power Interface |
Use Scenario: Safeguarding AC/DC adapter primary-side rectifier outputs against lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Secondary-side TVS on DC output rail, absorbing residual transients passing through Y-capacitors and MOVs. Use Value: Absorbs 600 W pulses without degradation, maintaining regulated 12 V output during EN 61000-4-5 2 kV surge tests. |
Use Scenario: Protecting -48 V telecom power feeds from induced surges on long-distance distribution lines. IC Role / Device Role / Timing Role: Unidirectional TVS mounted at board edge, clamping positive-going transients on negative supply rail. Use Value: Withstands repeated 10/1000 μs surges up to 600 W while maintaining VWM = 10.2 V for reliable -48 V rail holdoff. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A-E3/5B | Same VBR range (11.4–12.6 V), but lower PPPM = 400 W and higher VC = 19.9 V at 20.1 A | Limited to lower-energy transients; not suitable for automotive load-dump compliance | Select P6SMB12AHE3_B/I when 600 W surge handling and AEC-Q101 qualification are required |
| 1.5SMC12A | Same VBR and PPPM, but larger SMC (DO-214AB) package (7.11 mm × 6.22 mm) and non-AEC-Q101 rated | Requires PCB layout change; lacks automotive qualification and MSL Level 1 reflow compatibility | Choose P6SMB12AHE3_B/I for space-constrained automotive PCBs needing drop-in AEC-Q101 compliance |
Compared with SMAJ12A-E3/5B and 1.5SMC12A, P6SMB12AHE3_B/I uniquely combines 600 W surge capability, AEC-Q101 qualification, SMB footprint, and MSL Level 1 - enabling direct use in high-volume automotive production without derating or layout revision.
Availability
P6SMB12AHE3_B/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power systems requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB12AHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The P6SMB Series targets high-energy transient suppression in harsh environments, with design focus on AEC-Q101 compliance, low clamping voltage, and robust surge handling for 12 V and 24 V automotive and industrial power systems.
FAQ
What is the maximum clamping voltage of P6SMB12AHE3_B/I at its rated peak pulse current?
The P6SMB12AHE3_B/I has a maximum clamping voltage (VC) of 16.7 V at its rated peak pulse current (IPPM) of 35.9 A, measured under the standard 10/1000 μs waveform. This value ensures protected downstream components experience minimal overvoltage stress during transient events, making P6SMB12AHE3_B/I suitable for safeguarding 12 V logic and analog circuits in automotive and industrial applications.
Is P6SMB12AHE3_B/I qualified for automotive applications?
Yes, P6SMB12AHE3_B/I is AEC-Q101 qualified, as confirmed by Vishay's ordering code suffix "HE3_B", where "_B" denotes AEC-Q101 qualification for the P6SMB6.8A–P6SMB220A range. This qualification covers stress tests including temperature cycling, high-temperature operating life, and ESD, validating P6SMB12AHE3_B/I for use in engine control units, body electronics, and ADAS modules.
What does the "HE3_B/I" suffix mean in P6SMB12AHE3_B/I?
In P6SMB12AHE3_B/I, "HE3" indicates RoHS-compliant and AEC-Q101 qualified construction, "_B" specifies AEC-Q101 qualification level for the 6.8 V–220 V range, and "/I" denotes packaging in 13-inch diameter plastic tape and reel with 3200 units per reel. This full suffix confirms automotive-grade reliability, environmental compliance, and logistics readiness for high-volume SMT production.
How does the SMB (DO-214AA) package of P6SMB12AHE3_B/I compare to SMA (DO-214AC) in thermal performance?
The SMB package of P6SMB12AHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, versus ~125 °C/W for SMA packages under identical 0.2" × 0.2" pad layouts. This 20% lower RθJA allows P6SMB12AHE3_B/I to sustain higher average power dissipation in compact layouts, supporting longer surge duty cycles in space-constrained automotive modules without thermal runaway.
Can P6SMB12AHE3_B/I be used in bidirectional configurations?
No, P6SMB12AHE3_B/I is strictly unidirectional, as indicated by its "A" suffix and cathode band marking. For bidirectional operation, Vishay specifies the "CA" variant (e.g., P6SMB12CA). Using P6SMB12AHE3_B/I in reverse-biased configurations risks forward conduction and failure; always verify polarity alignment during PCB layout to ensure the cathode connects to the protected line.
P6SMB12AHE3_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:
- 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:
- 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)
P6SMB12AHE3_B/I FAQ
1.How can I place an order for P6SMB12AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB12AHE3_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 P6SMB12AHE3_B/I reliable?
The price and inventory of P6SMB12AHE3_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 P6SMB12AHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB12AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB12AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB12AHE3_B/I?
P6SMB12AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB12AHE3_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 P6SMB12AHE3_B/I?
For technical support, including P6SMB12AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB12AHE3_B/I requirements.
6.How does Aetrix verify that P6SMB12AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB12AHE3_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 P6SMB12AHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB12AHE3_B/I?
All P6SMB12AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB12AHE3_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 P6SMB12AHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB12AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB12AHE3_B/I Tags
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