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Vishay General Semiconductor - Diodes Division P6SMB9.1AHE3_A/I
- Part No.:
- P6SMB9.1AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB9.1AHE3_A/I.pdf
- Description:
- TVS DIODE 7.78VWM 13.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,771
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Product details
Overview
P6SMB9.1AHE3_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 9.1 V breakdown voltage (VBR = 8.65–9.55 V at IT = 1.0 mA), 7.78 V stand-off voltage (VWM), 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_A/I datasheet, P6SMB9.1AHE3_A/I pinout, P6SMB9.1AHE3_A/I application, or P6SMB9.1AHE3_A/I equivalent, this AEC-Q101 qualified TVS diode offers verified transient suppression performance, RoHS-compliant matte tin-plated leads, MSL Level 1 reflow compatibility (260 °C peak), and validated clamping behavior under repetitive surge conditions per JEDEC standards.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown to limit transient overvoltages before they damage downstream circuitry. Its low incremental surge resistance and fast response time (<1 ns) enable effective suppression of ESD, lightning-induced surges, and inductive switching spikes on DC rails and low-speed signal paths.
The device is rated for 150 °C maximum junction temperature, exhibits +0.068 %/°C temperature coefficient of VBR, and delivers 13.4 V clamping at 44.8 A IPPM - confirming stable protection margin across operating temperature range when mounted on 5.0 mm × 5.0 mm copper pads per JEDEC test condition.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 8.65 V / 9.55 V at 1.0 mA test current - defines precise avalanche onset threshold for reliable overvoltage triggering |
| VWM | 7.78 V - maximum continuous reverse operating voltage before leakage exceeds 50 μA |
| VC @ IPPM | 13.4 V at 44.8 A - clamped voltage during 600 W 10/1000 μs transient, determining protected circuit's worst-case stress level |
| PPPM | 600 W - peak pulse power handling capability under standardized surge waveform, enabling robust surge immunity |
| IPPM | 44.8 A - maximum non-repetitive peak pulse current supported without degradation |
| TJ max. | 150 °C - maximum junction temperature, supporting operation in under-hood automotive and industrial environments |
| MSL Level | Level 1 per J-STD-020 - allows unlimited floor life and standard reflow profile up to 260 °C peak |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads; polarity indicated by cathode band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; enables unidirectional clamping from cathode to anode |
| Cathode | Avalanche breakdown terminal | Marked with band; connected to higher-potential side (e.g., VCC rail); conducts surge current to ground during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated reliability for automotive powertrain and body electronics applications requiring zero defect rates |
| Glass passivated junction | Ensures stable VBR tolerance and long-term leakage stability under thermal cycling and humidity stress |
| 600 W peak pulse power | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-earth) in properly designed PCB layouts |
| Low clamping ratio (VC/VBR ≈ 1.47) | Minimizes voltage overshoot during clamping, reducing stress on protected ICs and MOSFETs |
| MSL Level 1 rating | Enables direct placement into high-volume SMT lines without dry-pack or baking requirements |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp surges above 13.4 V. Use Value: Prevents latch-up or permanent damage to microcontrollers and CAN transceivers during ISO 7637-2 Pulse 5a events. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and cable discharge. IC Role / Device Role / Timing Role: TVS connected from signal line to ground to absorb ±8 kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity below 13.4 V clamping level while adding <1 pF junction capacitance to avoid bandwidth degradation. |
| DC-DC Converter Input Stage | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Safeguarding buck converter input stage against inductive kickback from upstream relays or solenoids. IC Role / Device Role / Timing Role: Placed across input capacitor to clamp transients before they reach controller IC and MOSFET gate drivers. Use Value: Limits input rail overshoot to ≤13.4 V, preventing overvoltage shutdown or gate oxide rupture in 20 V-rated controllers. |
Use Scenario: Suppressing commutation spikes on brushed motor terminals in washing machines or HVAC blowers. IC Role / Device Role / Timing Role: Mounted across motor terminals to divert inductive energy away from driver ICs and MCU GPIOs. Use Value: Handles 44.8 A peak pulses without degradation, extending system lifetime under repeated motor start-stop cycles. |
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 | Same SMB package, slightly lower VBR (8.55–9.45 V), identical 600 W rating, but not AEC-Q101 qualified | Limited to commercial-grade consumer/industrial use; lacks automotive qualification documentation and traceability | Select when AEC-Q101 compliance is unnecessary and cost sensitivity outweighs qualification requirements |
| 1.5SMC9.1A | Higher-power SMC package (1500 W), same VBR range, larger footprint (7.11 × 6.22 mm vs. 4.57 × 3.94 mm), higher thermal mass | Used where board space permits and higher single-event surge margin is required beyond 600 W | Choose only if layout allows larger SMC footprint and system-level testing confirms need for >600 W rating |
Compared with SMAJ9.0A and 1.5SMC9.1A, P6SMB9.1AHE3_A/I uniquely combines AEC-Q101 qualification, SMB footprint efficiency, and precisely characterized 13.4 V clamping - making it optimal for space-constrained automotive modules where qualification and repeatability are mandatory.
Availability
P6SMB9.1AHE3_A/I is available at Aetrix Electronics and suitable for automotive power supply protection, industrial sensor interface hardening, and DC-DC converter input stage surge mitigation requiring stable component supply, full traceability, and AEC-Q101 compliance.
Supply support for P6SMB9.1AHE3_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, precision, and automotive-grade validation.
The P6SMB Series was engineered specifically for high-reliability transient suppression in automotive and industrial environments, balancing compact SMB packaging with 600 W surge capability and AEC-Q101 qualification.
FAQ
What is the clamping voltage of P6SMB9.1AHE3_A/I at its rated peak pulse current?
The P6SMB9.1AHE3_A/I has a maximum clamping voltage (VC) of 13.4 V at 44.8 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions with 0.2" × 0.2" copper pads and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is P6SMB9.1AHE3_A/I qualified for automotive applications?
Yes, P6SMB9.1AHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and Vishay documentation. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, validating its suitability for automotive powertrain, body control, and infotainment systems where reliability under harsh thermal and electrical conditions is mandatory.
What does the "_A/I" suffix in P6SMB9.1AHE3_A/I indicate?
The "_A/I" suffix in P6SMB9.1AHE3_A/I specifies packaging and reel configuration: "A" denotes the revision code per Vishay's internal documentation, and "I" indicates 13-inch diameter plastic tape and reel with 3200 units per reel - optimized for high-volume SMT assembly lines requiring extended reel life and reduced changeover frequency.
How does the thermal resistance of P6SMB9.1AHE3_A/I affect its power dissipation capability?
P6SMB9.1AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W. At ambient temperatures above 25 °C, its 5.0 W steady-state power dissipation (PD) must be derated linearly - for example, at 75 °C ambient, maximum continuous power drops to 2.5 W. This directly impacts sustained leakage current handling but does not affect its 600 W transient capability, which relies on short-duration energy absorption.
Can P6SMB9.1AHE3_A/I be used in bidirectional configurations?
No, P6SMB9.1AHE3_A/I is a unidirectional TVS diode, as indicated by the "A" (not "CA") suffix and cathode band marking. Bidirectional operation requires a "CA" variant such as P6SMB9.1CAHE3_A/I. Using this part in reverse-biased configurations risks permanent failure due to lack of symmetrical avalanche structure - always verify polarity alignment during PCB layout.
P6SMB9.1AHE3_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):
- 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:
- -
- 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_A/I FAQ
1.How can I place an order for P6SMB9.1AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB9.1AHE3_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 P6SMB9.1AHE3_A/I reliable?
The price and inventory of P6SMB9.1AHE3_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 P6SMB9.1AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB9.1AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB9.1AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB9.1AHE3_A/I?
P6SMB9.1AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB9.1AHE3_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 P6SMB9.1AHE3_A/I?
For technical support, including P6SMB9.1AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB9.1AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB9.1AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB9.1AHE3_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 P6SMB9.1AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB9.1AHE3_A/I?
All P6SMB9.1AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB9.1AHE3_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 P6SMB9.1AHE3_A/I part is unused and in its original packaging.
Return procedure for P6SMB9.1AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB9.1AHE3_A/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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