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Vishay General Semiconductor - Diodes Division P6SMB9.1AHE3_B/I
- Part No.:
- P6SMB9.1AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB9.1AHE3_B/I.pdf
- Description:
- 600W,9.1V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,118
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Product details
Overview
P6SMB9.1AHE3_B/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 7.78 V stand-off voltage (VWM), 8.65–9.55 V breakdown voltage (VBR) at 1.0 mA test current, 13.4 V maximum clamping voltage (VC) at 44.8 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB9.1AHE3_B/I datasheet, P6SMB9.1AHE3_B/I pinout, P6SMB9.1AHE3_B/I application, or P6SMB9.1AHE3_B/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 13.4 V clamping performance under 44.8 A surge, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a fast-acting shunt protector: under normal bias it presents high impedance (< 50 μA leakage at 7.78 V), but triggers into low-impedance conduction when transient voltage exceeds its 8.65–9.55 V breakdown range. Its glass-passivated junction ensures stable VBR tolerance and long-term reliability under repetitive surges.
The device is rated for 600 W peak pulse power (10/1000 μs), derated above 25 °C per Fig. 2, with 150 °C max junction temperature and MSL Level 1 moisture sensitivity. It meets JESD201 Class 2 whisker resistance and is RoHS-compliant with matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 7.78 V - maximum continuous reverse voltage before significant leakage; defines safe operating window for protected circuitry. |
| VBR (Breakdown) | 8.65–9.55 V at 1.0 mA - precise voltage threshold where clamping begins; tight 10% tolerance enables accurate overvoltage margining. |
| VC (Clamping) | 13.4 V at 44.8 A IPPM - maximum voltage seen by downstream components during worst-case 10/1000 μs surge; critical for IC survival. |
| PPPM | 600 W - peak transient energy absorption capability; validates protection against IEC 61000-4-5 Level 4 surges. |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with JEDEC MS-012 and automated pick-and-place. |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing; supports under-hood and ADAS applications. |
| RθJA | 100 °C/W - thermal resistance from junction to ambient; requires minimum 5.0 mm × 5.0 mm copper pad per terminal for full 600 W rating. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by band marking; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-voltage reference; completes clamping path during transient events. |
| Cathode | High-side connection point | Connected to protected line (e.g., 12 V rail or signal trace); carries surge current into ground via anode during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Validates robustness against severe lightning-induced surges and inductive switching spikes in 12 V/24 V systems. |
| 13.4 V clamping voltage at 44.8 A | Ensures downstream 5 V or 3.3 V logic ICs remain below absolute maximum ratings during transient events. |
| Glass passivated junction | Provides stable VBR over time and temperature, minimizing drift in critical protection thresholds across automotive life cycles. |
| AEC-Q101 qualified (HE3 suffix) | Confirms compliance with automotive stress tests including HTGB, TCT, and uHAST - required for Tier-1 supplier BOMs. |
| MSL Level 1 (260 °C reflow) | Enables single-pass lead-free reflow without pre-baking; reduces manufacturing complexity and cost in high-volume SMT lines. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and chassis ground. Use Value: Limits voltage excursion to ≤13.4 V during 44.8 A surges, preventing latch-up or gate oxide damage in MCU power domains. |
Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance overvoltage clamp on differential or single-ended signal traces. Use Value: Maintains signal integrity with <50 μA leakage at 7.78 V while clamping ESD events per IEC 61000-4-2 Level 4. |
| Consumer Power Adapter Input Stage | Telecom DC Power Distribution |
Use Scenario: Secondary-side surge suppression in AC/DC adapters powering USB-C PD devices. IC Role / Device Role / Timing Role: Unidirectional TVS placed after rectifier bridge to absorb line-to-ground transients. Use Value: Withstands 600 W pulses without degradation, extending adapter lifetime in regions with unstable mains infrastructure. |
Use Scenario: Protecting -48 V telecom power distribution boards from hot-swap and cable discharge events. IC Role / Device Role / Timing Role: High-energy clamping device on feed lines to remote radio units and baseband processors. Use Value: Delivers 13.4 V clamping at 44.8 A with 100 °C/W RθJA, enabling compact layout without forced-air cooling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ9.0A | 9.0 V VBR min (vs. 8.65 V), 13.6 V VC at 44.3 A, same SMB package, non-AEC-Q101 | Lacks automotive qualification; suitable for commercial/industrial only | Select when AEC-Q101 is not required and tighter VBR lower limit is acceptable. |
| 1.5SMC9.0A | 9.0 V VBR min, 13.6 V VC at 44.3 A, larger SMC (DO-214AB) package, 1.5 kW rating | Higher power handling but 30% larger footprint; requires PCB redesign | Choose for higher surge margin where board space permits and automotive qualification is unnecessary. |
Compared with SMAJ9.0A and 1.5SMC9.0A, P6SMB9.1AHE3_B/I offers AEC-Q101 qualification in the smallest SMB footprint while maintaining identical clamping performance - making it optimal for space-constrained automotive modules requiring zero-layout change upgrades.
Availability
P6SMB9.1AHE3_B/I is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and telecom power distribution requiring stable component supply with AEC-Q101 assurance, RoHS compliance, and high-volume tape-and-reel delivery.
Supply support for P6SMB9.1AHE3_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 power efficiency.
The P6SMB Series is part of Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-energy transient suppression in automotive, industrial, and communications infrastructure where AEC-Q101 compliance and consistent clamping performance are mandatory.
FAQ
What is the clamping voltage of P6SMB9.1AHE3_B/I at its rated peak pulse current?
The P6SMB9.1AHE3_B/I has a maximum clamping voltage (VC) of 13.4 V at 44.8 A peak pulse current (IPPM), measured using the standard 10/1000 μs waveform. This value is guaranteed across temperature and ensures protected circuits remain within safe operating limits during surge events. The P6SMB9.1AHE3_B/I datasheet specifies this parameter under "Electrical Characteristics" with test conditions fully aligned to IEC 61000-4-5.
Is P6SMB9.1AHE3_B/I qualified for automotive applications?
Yes, P6SMB9.1AHE3_B/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's P6SMB series datasheet (Rev. 09-Jan-2024, Doc. #88370). It undergoes rigorous stress testing including high-temperature reverse bias, temperature cycling, and unbiased highly accelerated stress testing - meeting requirements for engine control units, ADAS sensors, and body electronics.
What does the "_B/I" suffix mean in P6SMB9.1AHE3_B/I?
The "_B" denotes AEC-Q101 qualification for the P6SMB9.1AHE3_B/I series (applicable to 6.8 V–220 V unidirectional/bidirectional variants), while "/I" indicates packaging in 13-inch diameter plastic tape and reel with 3200 units per reel. This format supports high-speed SMT assembly and is traceable per Vishay's lot-control standards.
How does P6SMB9.1AHE3_B/I compare to bidirectional TVS diodes like P6SMB9.1CA?
P6SMB9.1AHE3_B/I is unidirectional and intended for DC line protection with defined polarity (cathode band), whereas P6SMB9.1CA is bidirectional and suited for AC or floating signal lines. The P6SMB9.1AHE3_B/I offers identical VBR and VC specs but adds AEC-Q101 qualification and automotive-grade traceability - making it unsuitable as a drop-in replacement for bidirectional use cases.
What PCB layout guidance applies to P6SMB9.1AHE3_B/I for full 600 W rating?
To achieve the full 600 W peak pulse power rating, P6SMB9.1AHE3_B/I must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. Thermal relief traces should be minimized, and ground planes should be solid beneath the device. The P6SMB9.1AHE3_B/I thermal resistance (RθJA = 100 °C/W) assumes this layout; smaller pads reduce surge capability proportionally.
P6SMB9.1AHE3_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):
- 7.78V
- Voltage - Breakdown (Min):
- 8.65V
- Voltage - Clamping (Max) @ Ipp:
- 13.4V
- Current - Peak Pulse (10/1000µs):
- 44.8A
- 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)
P6SMB9.1AHE3_B/I FAQ
1.How can I place an order for P6SMB9.1AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB9.1AHE3_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 P6SMB9.1AHE3_B/I reliable?
The price and inventory of P6SMB9.1AHE3_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 P6SMB9.1AHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB9.1AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB9.1AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB9.1AHE3_B/I?
P6SMB9.1AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB9.1AHE3_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 P6SMB9.1AHE3_B/I?
For technical support, including P6SMB9.1AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB9.1AHE3_B/I requirements.
6.How does Aetrix verify that P6SMB9.1AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB9.1AHE3_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 P6SMB9.1AHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB9.1AHE3_B/I?
All P6SMB9.1AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB9.1AHE3_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 P6SMB9.1AHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB9.1AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB9.1AHE3_B/I Tags
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