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Vishay General Semiconductor - Diodes Division P6SMB82AHM3_B/I
- Part No.:
- P6SMB82AHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB82AHM3_B/I.pdf
- Description:
- 600W,82V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,911
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Product details
Overview
P6SMB82AHM3_B/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 82 V breakdown voltage (VBR = 77.9–86.1 V at 1 mA), 113 V maximum clamping voltage (VC) at 5.3 A peak pulse current, and 600 W peak pulse power with 10/1000 μs waveform. It protects MOSFETs and signal lines in automotive sensor units against inductive switching transients.
For engineers reviewing the P6SMB82AHM3_B/I datasheet, P6SMB82AHM3_B/I pinout, P6SMB82AHM3_B/I application, or P6SMB82AHM3_B/I equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (−65 to +150 °C), and halogen-free RoHS compliance per ordering code HM3_B/I.
Technical Context
This unidirectional TVS diode operates by avalanche breakdown to clamp transient overvoltages above its stand-off voltage (VWM = 70.1 V) while maintaining low leakage (<1 μA). Its glass-passivated junction ensures stable VBR tolerance (±5%) and fast response time (<1 ns).
Designed for automated SMT placement, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C) and JESD201 Class 2 whisker resistance. The cathode band identifies polarity, and its SMB package provides 5.0 mm × 5.0 mm copper pad thermal dissipation per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 77.9 V / 86.1 V at 1 mA - defines precise avalanche initiation window for reliable overvoltage triggering |
| VWM | 70.1 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 113 V at 5.3 A - clamping voltage limiting downstream IC stress during 10/1000 μs surge |
| PPPM | 600 W - peak transient power handling capability under standardized surge waveform |
| RθJA | 100 °C/W - junction-to-ambient thermal resistance on standard 5.0 mm × 5.0 mm copper pads |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to protected circuit ground reference | Low-impedance path to shunt surge current to ground when VAK exceeds VBR |
| Cathode | Current exit point in forward bias; marked with band; connects to line under protection | Defines polarity-sensitive connection-must be placed between protected node and system ground |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against ISO 7637-2 Pulse 1/2a/5a transients in 12 V automotive systems |
| AEC-Q101 qualified (HM3_B/I suffix) | Validated for automotive electronics including engine control modules and ADAS sensor interfaces |
| Glass passivated junction | Ensures long-term VBR stability and low parameter drift across temperature and life cycles |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without popcorn cracking or delamination during high-volume SMT assembly |
| Halogen-free & RoHS-compliant (HM3) | Meets EU ELV and automotive OEM material declaration requirements for sustainable supply chains |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive kickback in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and chassis ground to clamp transients before they reach the transceiver input stage. Use Value: Limits clamped voltage to 113 V, ensuring transceiver survival under ISO 16750-2 Load Dump (12 V system, 35 V/1 s) and ISO 7637-2 Pulse 5a (75 V/300 ms). |
Use Scenario: Safeguarding digital input terminals of programmable logic controllers exposed to relay coil flyback and motor drive noise in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24 V DC input lines to absorb repetitive 600 W surges without degradation. Use Value: Maintains <1 μA leakage at 70.1 V stand-off, preventing false triggering while clamping 5.3 A transients to ≤113 V within nanoseconds. |
| Telecom Power Supply Surge Clamping | Consumer Appliance Motor Control |
|
Use Scenario: Secondary-side transient suppression on 48 V telecom power rails feeding baseband processors and PHY ICs. IC Role / Device Role / Timing Role: Unidirectional clamping device placed after DC/DC converter output to suppress coupling from primary-side switching noise. Use Value: Delivers 600 W pulse rating with 100 °C/W RθJA, enabling operation up to +85 °C ambient without derating in enclosed power modules. |
Use Scenario: Overvoltage protection for microcontroller GPIOs driving small brushed DC motors in smart home appliances (e.g., vacuum cleaners, blenders). IC Role / Device Role / Timing Role: Localized TVS on motor driver output traces to prevent latch-up or gate oxide damage during commutation spikes. Use Value: Fast <1 ns response and low incremental surge resistance ensure clamping occurs before MCU I/O damage threshold (typically <2 kV HBM) is exceeded. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ82A-E3/5B | Same VBR range (77.9–86.1 V), but SMA package (smaller footprint, higher RθJA = 140 °C/W), non-AEC-Q101, RoHS-compliant only | Limited to commercial-temperature industrial use; unsuitable for under-hood automotive due to lower thermal performance and qualification gap | Select when board space is constrained and automotive qualification is not required |
| 1.5SMC82A-Q | Same electrical specs, but SMC package (larger than SMB), AEC-Q101 qualified, halogen-free, higher PPPM margin (1500 W) | Higher surge margin supports harsher transients (e.g., ISO 7637-2 Pulse 5b); requires larger PCB area and different pad layout | Select when enhanced surge immunity beyond 600 W is needed and layout allows SMC footprint |
Compared with P6SMB82AHM3_B/I, SMAJ82A-E3/5B offers smaller size but lacks automotive qualification and thermal robustness, while 1.5SMC82A-Q provides higher surge headroom and same qualification at the cost of larger board area-making P6SMB82AHM3_B/I the optimal balance of AEC-Q101 compliance, SMB footprint, and 600 W capability.
Availability
P6SMB82AHM3_B/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC inputs, and telecom power supply designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB82AHM3_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, rectifiers, and protection devices with emphasis on reliability, precision, and automotive-grade validation.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems, engineered specifically for AEC-Q101 compliance, automated SMT compatibility, and stable clamping performance across −65 °C to +150 °C.
FAQ
What is the maximum clamping voltage of the P6SMB82AHM3_B/I under a 10/1000 μs surge?
The P6SMB82AHM3_B/I has a maximum clamping voltage (VC) of 113 V at 5.3 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per JEDEC standards and ensures downstream components remain below their absolute maximum voltage ratings during transient events. The P6SMB82AHM3_B/I maintains this clamping performance across its full operating temperature range.
Is the P6SMB82AHM3_B/I qualified for automotive applications?
Yes, the P6SMB82AHM3_B/I is AEC-Q101 qualified, as indicated by the "HM3_B" suffix in its ordering code. It has passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD) per AEC-Q101 Rev D. This makes the P6SMB82AHM3_B/I suitable for under-hood and cabin electronics where reliability under thermal and mechanical stress is critical.
What does the "HM3_B/I" suffix mean in P6SMB82AHM3_B/I?
The "HM3" denotes halogen-free, RoHS-compliant construction with JESD201 Class 2 whisker resistance; "B" indicates AEC-Q101 qualification for the 6.8 V to 220 V voltage range; "I" specifies 3200-unit quantity on 13-inch tape-and-reel packaging. Together, P6SMB82AHM3_B/I confirms the part meets automotive material, reliability, and logistics requirements-distinct from commercial-grade variants like E3 or M3.
How does the P6SMB82AHM3_B/I compare to bidirectional TVS diodes in the same series?
The P6SMB82AHM3_B/I is unidirectional, meaning it conducts only in reverse breakdown and blocks forward current-ideal for DC-biased lines like power rails or single-ended signal paths. Bidirectional variants (e.g., P6SMB82CA) conduct in both directions and are used for AC-coupled or differential lines such as USB or RS-485. The P6SMB82AHM3_B/I's 70.1 V stand-off voltage applies only in reverse; forward voltage drop is ~3.5 V at 50 A, unlike bidirectional types which lack defined forward conduction.
What is the thermal resistance of the P6SMB82AHM3_B/I, and how does it affect PCB layout?
The P6SMB82AHM3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures under repeated surges, PCB layout must replicate this minimum pad area and avoid excessive trace narrowing. Reducing pad size increases RθJA, risking thermal runaway during high-duty-cycle transients-so the P6SMB82AHM3_B/I requires strict adherence to Vishay's recommended land pattern.
P6SMB82AHM3_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):
- 70.1V
- Voltage - Breakdown (Min):
- 77.9V
- Voltage - Clamping (Max) @ Ipp:
- 113V
- Current - Peak Pulse (10/1000µs):
- 5.3A
- 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)
P6SMB82AHM3_B/I FAQ
1.How can I place an order for P6SMB82AHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB82AHM3_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 P6SMB82AHM3_B/I reliable?
The price and inventory of P6SMB82AHM3_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 P6SMB82AHM3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB82AHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB82AHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB82AHM3_B/I?
P6SMB82AHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB82AHM3_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 P6SMB82AHM3_B/I?
For technical support, including P6SMB82AHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB82AHM3_B/I requirements.
6.How does Aetrix verify that P6SMB82AHM3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB82AHM3_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 P6SMB82AHM3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB82AHM3_B/I?
All P6SMB82AHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB82AHM3_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 P6SMB82AHM3_B/I part is unused and in its original packaging.
Return procedure for P6SMB82AHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB82AHM3_B/I Tags
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Diodes Incorporated
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