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Vishay General Semiconductor - Diodes Division P6SMB8.2AHM3/I
- Part No.:
- P6SMB8.2AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2AHM3/I.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,371
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Product details
Overview
P6SMB8.2AHM3/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 8.2 V standoff voltage (VWM), 12.1 V maximum clamping voltage at 49.6 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - deployed in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the P6SMB8.2AHM3/I datasheet, P6SMB8.2AHM3/I pinout, P6SMB8.2AHM3/I application, or P6SMB8.2AHM3/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 7.79–8.61 V breakdown voltage range at 10 mA test current, thermal resistance (RθJA = 100 °C/W), and halogen-free RoHS compliance per HM3 suffix.
Technical Context
This TVS diode operates as a fast-acting shunt clamp during overvoltage events, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response time. Its unidirectional configuration enables integration into DC-biased lines where reverse conduction must be blocked until clamping threshold is exceeded.
Rated for 150 °C maximum junction temperature and MSL Level 1 moisture sensitivity, the device sustains repetitive 0.01% duty-cycle surges when mounted on 5.0 mm × 5.0 mm copper pads. The HM3 suffix confirms halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance and 260 °C lead-free reflow compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 7.02 V - maximum continuous reverse voltage before leakage exceeds 200 μA; defines operating margin below clamping onset |
| VBR (Breakdown Voltage) | 7.79–8.61 V at 10 mA - guaranteed conduction onset range; ensures predictable turn-on under transient stress |
| VC (Clamping Voltage) | 12.1 V at 49.6 A IPPM - peak voltage seen by protected circuit during 10/1000 μs surge; critical for IC-level survivability |
| PPPM (Peak Pulse Power) | 600 W - energy-handling capacity for standardized 10/1000 μs waveform; supports IEC 61000-4-5 Level 3/4 immunity |
| TJ max. | 150 °C - maximum junction temperature rating; enables operation in under-hood automotive environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient; informs derating requirements on standard PCB layouts |
| Package | SMB (DO-214AA) - 3.94 mm × 2.20 mm footprint; compatible with automated SMT placement and reflow profiles up to 260 °C |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity with cathode band marking. Dimensions: 3.94 mm × 2.20 mm × 1.52 mm (L × W × H). Matte tin-plated leads, solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts only during forward surge or bias conditions |
| Cathode | Reverse-biased clamping terminal | Marked with band; connects to higher-potential side; initiates avalanche breakdown when VAK ≥ VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| 600 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges up to 4 kV (line-to-earth) without degradation |
| Glass passivated junction | Ensures stable leakage performance (<200 μA at VWM) and long-term reliability under thermal cycling |
| Halogen-free & RoHS compliant (HM3) | Meets automotive OEM material restrictions and supports lead-free manufacturing with 260 °C peak reflow |
| MSL Level 1 rating | Zero floor life limitation; no dry-pack or baking required prior to assembly |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between signal line and ground, activated within <1 ns upon exceeding VWM. Use Value: Limits transient voltage to ≤12.1 V, preserving integrity of 5 V or 3.3 V logic interfaces downstream of the protected node. |
Use Scenario: Safeguarding digital input channels on programmable logic controllers exposed to 24 V DC field wiring with high inductance. IC Role / Device Role / Timing Role: Standoff-clamp TVS connected across input terminals to absorb 600 W surges induced by relay coil de-energization. Use Value: Prevents false triggering and latch-up in optocoupler input stages by clamping transients before they exceed 12.1 V. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side DC output protection in wall adapters and USB PD chargers against ESD and capacitive discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +VOUT and GND to suppress fast-rising transients from cable coupling or hot-plug events. Use Value: Maintains output regulation by limiting voltage excursions to 12.1 V, avoiding overvoltage shutdown in downstream DC-DC controllers. |
Use Scenario: Front-end protection for Ethernet PHY interfaces and analog line cards subjected to lightning-induced surges on twisted-pair cables. IC Role / Device Role / Timing Role: Primary-stage clamp on low-voltage auxiliary rails (e.g., 3.3 V bias supplies) feeding sensitive transceiver ICs. Use Value: Enables compliance with GR-1089-CORE Level 3 surge immunity while occupying minimal board area in dense line card layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Lower VWM (6.4 V), higher VC (12.5 V at 48.2 A), same SMB package and 600 W rating | Marginally tighter VWM tolerance but reduced clamping efficiency; less suitable for 8.2 V nominal rail protection | Select when design requires lower standoff with acceptable clamping trade-off; verify system-level margin against 12.5 V VC |
| 1.5SMC8.2A | Same VWM (7.02 V) and VC (12.1 V), but larger SMC (DO-214AB) package (7.11 mm × 6.22 mm) | Higher thermal mass allows better sustained power handling but incompatible with space-constrained SMB footprints | Choose only if PCB layout permits larger footprint and enhanced thermal dissipation is prioritized over miniaturization |
Compared with SMAJ8.0A and 1.5SMC8.2A, the P6SMB8.2AHM3/I delivers optimal balance of precise 7.02 V standoff, industry-leading 12.1 V clamping, AEC-Q101 qualification, and compact SMB packaging - making it the preferred choice for automotive and high-density industrial designs requiring halogen-free compliance.
Availability
P6SMB8.2AHM3/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line card protection requiring stable component supply, AEC-Q101 validation, and halogen-free manufacturing compliance.
Supply support for P6SMB8.2AHM3/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, MOSFETs, and protection devices with emphasis on reliability, power efficiency, and automotive-grade qualification.
The P6SMB Series targets robust transient suppression in harsh environments, engineered specifically for AEC-Q101 compliance, high pulse power density, and seamless integration into automated SMT production lines.
FAQ
What is the breakdown voltage range for P6SMB8.2AHM3/I?
The P6SMB8.2AHM3/I has a guaranteed breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA test current, measured per ANSI/IEEE C62.35 standards. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable design margining for 8.2 V nominal systems. The value is confirmed in Vishay's official datasheet revision 09-Jan-2024, Document Number 88370.
Is P6SMB8.2AHM3/I AEC-Q101 qualified?
Yes, P6SMB8.2AHM3/I is AEC-Q101 qualified - indicated by the "HM3" suffix and "_B" revision code in the ordering nomenclature. It meets stress test requirements for automotive applications including temperature cycling, humidity bias, and mechanical shock. Qualification applies specifically to the P6SMB8.2AHM3/I variant, not the base P6SMB8.2A family.
What does the "HM3" suffix mean on P6SMB8.2AHM3/I?
The "HM3" suffix on P6SMB8.2AHM3/I denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance and compatibility with lead-free reflow up to 260 °C. It also signifies AEC-Q101 qualification when paired with the "_B" revision code, distinguishing it from commercial-grade "M3" variants.
What is the maximum clamping voltage of P6SMB8.2AHM3/I under surge conditions?
The maximum clamping voltage (VC) of P6SMB8.2AHM3/I is 12.1 V at 49.6 A peak pulse current (IPPM), tested with a 10/1000 μs waveform. This value represents the highest voltage imposed on the protected circuit during standardized surge events and is critical for ensuring downstream ICs remain within absolute maximum ratings.
Can P6SMB8.2AHM3/I be used in bidirectional configurations?
No, P6SMB8.2AHM3/I is strictly unidirectional, as confirmed by its part number suffix "A" and cathode-band marking. Bidirectional variants use "CA" suffixes (e.g., P6SMB8.2CA). Using P6SMB8.2AHM3/I in bidirectional applications would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
P6SMB8.2AHM3/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:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 49.6A
- 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)
P6SMB8.2AHM3/I FAQ
1.How can I place an order for P6SMB8.2AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2AHM3/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 P6SMB8.2AHM3/I reliable?
The price and inventory of P6SMB8.2AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB8.2AHM3/I is usually 5 days.
3.What payment methods are accepted for P6SMB8.2AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2AHM3/I?
P6SMB8.2AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2AHM3/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 P6SMB8.2AHM3/I?
For technical support, including P6SMB8.2AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2AHM3/I requirements.
6.How does Aetrix verify that P6SMB8.2AHM3/I is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2AHM3/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 P6SMB8.2AHM3/I meets industry standards.
7.What is the process for return or replacement of P6SMB8.2AHM3/I?
All P6SMB8.2AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2AHM3/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 P6SMB8.2AHM3/I part is unused and in its original packaging.
Return procedure for P6SMB8.2AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2AHM3/I Tags
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