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Vishay General Semiconductor - Diodes Division P6SMB82CAHE3_B/I
- Part No.:
- P6SMB82CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB82CAHE3_B/I.pdf
- Description:
- 600W,82V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,685
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Product details
Overview
P6SMB82CAHE3_B/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal or power lines. It features a 82 V breakdown voltage (VBR min/max = 77.9 V / 86.1 V), 113 V maximum clamping voltage (VC) at 5.3 A peak pulse current (IPPM), and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line surge suppression.
For engineers reviewing the P6SMB82CAHE3_B/I datasheet, P6SMB82CAHE3_B/I pinout, P6SMB82CAHE3_B/I application, or P6SMB82CAHE3_B/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMB (DO-214AA) package compatibility, and verified 113 V clamping performance under 5.3 A transient stress.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping both positive and negative transients without polarity dependence. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 µA at 70.1 V stand-off), while thermal resistance (RθJA = 100 °C/W) supports operation up to +150 °C junction temperature.
The P6SMB82CAHE3_B/I delivers repeatable 600 W surge handling per JEDEC-standard 10/1000 µs waveform at 0.01% duty cycle. Its low incremental surge resistance enables fast response (<1 ns) and tight clamping ratio (VC/VBR(min) ≈ 1.45), critical for protecting downstream MOSFETs and ICs in automotive-grade systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 77.9 V min / 86.1 V max at 1 mA test current - defines precise voltage threshold where avalanche conduction begins in both directions |
| Stand-off Voltage VWM | 70.1 V - maximum continuous reverse working voltage before significant leakage; sets safe operating margin below VBR |
| Clamping Voltage VC | 113 V at 5.3 A IPPM - actual voltage seen by protected circuit during worst-case 600 W transient event |
| Peak Pulse Power PPPM | 600 W with 10/1000 µs waveform - quantifies single-event surge energy absorption capacity |
| Package | SMB (DO-214AA) - industry-standard surface-mount outline with 5.59 mm × 4.06 mm footprint and J-STD-020 MSL Level 1 rating |
| AEC-Q101 Qualified | Yes - validated for automotive applications including engine control units, ADAS sensors, and body electronics |
| Operating Temperature | -65 °C to +150 °C - enables deployment in under-hood and industrial environments with wide thermal cycling |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminal configuration with cathode/anode indistinguishable in layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional transient path | Either terminal serves as input/output for clamping; no DC polarity dependency - connects across protected line and ground or differential pair |
| Case / Body | Thermal and mechanical interface | Exposed copper pad area (0.2" × 0.2") required per terminal for thermal dissipation; no electrical connection |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without derating in standard PCB layouts |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity testing, and mechanical shock - supports PPAP documentation |
| Glass passivated junction | Ensures long-term stability of VBR and leakage performance over 15+ year service life in harsh environments |
| Low clamping ratio (1.45) | Minimizes overvoltage stress on downstream components - critical for 3.3 V/5 V logic and low-threshold MOSFET gates |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without pre-baking; eliminates moisture-related popcorning risk |
Applications
| Automotive Sensor Interface | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting CAN FD or LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and chassis ground, absorbing transients before they reach sensitive analog front-ends or communication ICs. Use Value: Maintains signal integrity during 12 V/24 V system load dump (ISO 7637-2 Pulse 5a) with <113 V clamped voltage, preventing latch-up or permanent damage to 5 V tolerant receivers. |
Use Scenario: Safeguarding PLC digital input modules against induced surges from relay coil switching and motor drive noise in factory automation cabinets. IC Role / Device Role / Timing Role: Parallel-connected TVS across dry-contact inputs or optocoupler primary side, shunting fast-rising transients (<1 ns rise time) to ground. Use Value: Withstands repetitive 600 W surges at 0.01% duty cycle, enabling reliable operation in high-noise 24 V DC control environments without degradation over 100,000+ cycles. |
| Telecom Line Interface | Power Supply Input Stage |
Use Scenario: Shielding Ethernet PHYs, RS-485 transceivers, and PoE injectors from lightning-induced surges on outdoor cabling in telecom base stations and network switches. IC Role / Device Role / Timing Role: First-stage protection device mounted at connector entry point, coordinated with GDT or polymer PTC for multi-stage clamping. Use Value: Fast 1 ns response and 113 V clamping limit ensure compliance with ITU-T K.21 Basic Protection Level for public network equipment. |
Use Scenario: Secondary overvoltage protection on 24 V or 48 V DC input rails of embedded controllers and edge AI gateways exposed to field wiring faults. IC Role / Device Role / Timing Role: Standby clamping component across bulk capacitor input, activated only during abnormal overvoltage events exceeding normal regulation range. Use Value: Low 1.0 µA leakage at 70.1 V ensures negligible standby power loss, while 150 °C max junction temperature supports operation in sealed, fanless enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ85CA | 85 V VBR (min 80.8 V), 120 V VC at 5.0 A, same SMB package but non-AEC-Q101 rated | Commercial-grade only; not qualified for automotive temperature cycling or reliability testing | Select when cost sensitivity outweighs automotive qualification requirements and clamping voltage margin allows 120 V tolerance |
| SMCJ85CA | Same VBR/VC specs but in larger SMC (DO-214AB) package; 1500 W PPPM rating | Higher power handling requires larger PCB area; thermal performance differs due to RθJA = 35 °C/W vs. 100 °C/W | Choose for higher-energy surge environments (e.g., AC mains coupling) where board space permits larger footprint and enhanced thermal mass |
Compared with SMAJ85CA and SMCJ85CA, the P6SMB82CAHE3_B/I offers tighter clamping (113 V vs. 120 V), automotive qualification, and optimized thermal profile for compact, high-reliability PCB layouts - making it preferred for space-constrained automotive and industrial edge nodes.
Availability
P6SMB82CAHE3_B/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial digital I/O protection, and telecom line surge suppression requiring stable component supply, AEC-Q101 traceability, and consistent SMB (DO-214AA) packaging.
Supply support for P6SMB82CAHE3_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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on reliability, precision, and application-specific performance.
The P6SMB series targets high-energy transient suppression in automotive, industrial, and telecom systems - engineered for AEC-Q101 compliance, low clamping ratios, and robust surge endurance in surface-mount form factors.
FAQ
What is the exact breakdown voltage range for P6SMB82CAHE3_B/I?
The P6SMB82CAHE3_B/I has a guaranteed breakdown voltage (VBR) range of 77.9 V to 86.1 V at 1 mA test current, measured in both directions due to its bidirectional construction. This specification is confirmed in Vishay's official P6SMB datasheet (Document Number: 88370, Rev. 09-Jan-2024) and applies directly to the P6SMB82CAHE3_B/I variant with HE3 automotive qualification suffix.
Is P6SMB82CAHE3_B/I suitable for automotive applications?
Yes, P6SMB82CAHE3_B/I is AEC-Q101 qualified - explicitly stated in the ordering information section of the Vishay datasheet, where "_B" denotes AEC-Q101 qualification for P6SMB6.8(C)A to P6SMB220(C)A devices. The HE3 suffix confirms RoHS-compliant and automotive-grade construction, making P6SMB82CAHE3_B/I appropriate for engine control, ADAS, and body electronics.
What does the "CA" suffix mean in P6SMB82CAHE3_B/I?
The "CA" suffix in P6SMB82CAHE3_B/I indicates a bidirectional configuration - meaning the device clamps voltage transients equally in both polarities, with no anode/cathode distinction. This is distinct from "A"-suffixed unidirectional parts and is confirmed in Vishay's documentation under "DEVICES FOR BIDIRECTION APPLICATIONS".
What is the maximum clamping voltage of P6SMB82CAHE3_B/I under surge conditions?
The maximum clamping voltage (VC) of P6SMB82CAHE3_B/I is 113 V at 5.3 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is specified in the Electrical Characteristics table of the Vishay P6SMB datasheet and represents the worst-case voltage imposed on protected circuitry during standardized surge testing.
Does P6SMB82CAHE3_B/I have a defined polarity marking on the package?
No, P6SMB82CAHE3_B/I has no polarity marking - as a bidirectional TVS, it is symmetrical and functions identically regardless of orientation. The Vishay datasheet explicitly states "no marking on bidirectional types", and the SMB (DO-214AA) package uses identical terminals with no cathode band or other visual indicator.
P6SMB82CAHE3_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:
- -
- Bidirectional Channels:
- 1
- 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)
P6SMB82CAHE3_B/I FAQ
1.How can I place an order for P6SMB82CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB82CAHE3_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 P6SMB82CAHE3_B/I reliable?
The price and inventory of P6SMB82CAHE3_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 P6SMB82CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB82CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB82CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB82CAHE3_B/I?
P6SMB82CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB82CAHE3_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 P6SMB82CAHE3_B/I?
For technical support, including P6SMB82CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB82CAHE3_B/I requirements.
6.How does Aetrix verify that P6SMB82CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB82CAHE3_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 P6SMB82CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB82CAHE3_B/I?
All P6SMB82CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB82CAHE3_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 P6SMB82CAHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB82CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB82CAHE3_B/I Tags
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