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Vishay General Semiconductor - Diodes Division P6SMB82CAHE3/5B
- Part No.:
- P6SMB82CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB82CAHE3/5B.pdf
- Description:
- TVS DIODE 70.1VWM 113VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,653
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Product details
Overview
P6SMB82CAHE3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection on signal and power lines. It features a 70.1 V standoff voltage (VWM), 77.9–86.1 V breakdown voltage (VBR) at 1 mA, 113 V maximum clamping voltage (VC) at 5.3 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 µs waveform - deployed in automotive sensor interfaces, industrial I/O modules, and telecom line protection.
For engineers reviewing the P6SMB82CAHE3/5B datasheet, P6SMB82CAHE3/5B pinout, P6SMB82CAHE3/5B application, or P6SMB82CAHE3/5B equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, SMB (DO-214AA) package compatibility, and verified 150 °C junction temperature operation under repetitive surge conditions.
Technical Context
This TVS operates as a voltage-clamped shunt protector: during transient events exceeding VWM, it avalanches symmetrically in both directions to limit voltage across protected circuitry. Its glass-passivated junction ensures stable leakage (<1 µA at 70.1 V) and fast response (<1 ns), while low incremental surge resistance enables effective energy diversion without thermal runaway.
The device is rated for 600 W peak pulse power (10/1000 µs), derated linearly above 25 °C ambient per Fig. 2, and supports repetitive surges at 0.01 % duty cycle. Thermal resistance is 100 °C/W (junction-to-ambient) on standard 0.2" × 0.2" copper pads, with 20 °C/W junction-to-lead for localized heat sinking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 70.1 V - Maximum continuous reverse voltage before conduction begins in either direction |
| VBR (Breakdown) | 77.9–86.1 V at 1 mA - Confirmed avalanche onset range ensuring predictable clamping threshold |
| VC (Clamping) | 113 V at 5.3 A - Peak voltage seen by protected circuit during full-rated 10/1000 µs transient |
| PPPM | 600 W - Sustained surge energy handling capacity under standardized waveform |
| IPPM | 5.3 A - Corresponding peak pulse current delivering 113 V clamping at 600 W |
| TJ max. | 150 °C - Maximum allowable junction temperature enabling operation in under-hood automotive environments |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | One terminal of symmetrical PN junction; conducts during positive or negative transients relative to cathode |
| Cathode | Transient current exit (bidirectional) | Second terminal of symmetrical PN junction; completes low-impedance path to ground or rail during clamping event |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualification | Validates suitability for automotive applications including engine control units and ADAS sensor interfaces |
| 600 W peak pulse rating | Handles IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) with margin when properly mounted |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes stress on downstream ICs by limiting overshoot during fast transients |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without preconditioning, compatible with standard SMT assembly lines |
Applications
| Automotive Sensor Protection | Industrial Digital I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN FD and LIN bus transceivers from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed directly at connector interface, clamping induced spikes before they reach PHY layer. Use Value: Maintains signal integrity under 12 V/24 V system surges up to 100 V, leveraging 113 V clamping and AEC-Q101 reliability. |
Use Scenario: Safeguarding PLC digital input modules against field-wiring induced transients in factory automation. IC Role / Device Role / Timing Role: Bidirectional clamp on 24 V DC input lines, absorbing inductive kickback from solenoid/relay coils. Use Value: Prevents false triggering and latch-up in microcontroller GPIOs using symmetrical 70.1 V standoff and 600 W surge capacity. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
|
Use Scenario: Shielding Ethernet PHY magnetics and PoE injectors from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side DC lines, coordinated with gas discharge tubes for staged protection. Use Value: Limits voltage to ≤113 V during 10/1000 µs transients, preserving isolation barrier integrity and meeting IEC 61000-4-5 requirements. |
Use Scenario: Adding secondary-side surge immunity to USB-C PD adapters exposed to user-handling ESD and mains coupling. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp on 5–20 V output rails, suppressing contact discharge up to ±15 kV. Use Value: Achieves <1 µA leakage at 70.1 V and sub-ns response, preventing standby current drift and maintaining efficiency certification. |
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 | Higher VWM (72.2 V), higher VC (125 V), same SMB package and 600 W rating | Less margin between VWM and system nominal voltage; tighter fit for 75 V nominal rails | Select when operating voltage approaches 72 V and clamping margin allows 125 V excursion |
| 1.5SMC82CA | Same VWM/VBR/VC specs but in larger SMC (DO-214AB) package; 1.5 kW rating | Requires PCB real estate increase; suited for higher-energy surge environments (e.g., AC mains input) | Choose only if system-level surge testing exceeds 600 W or thermal constraints demand lower RθJA |
Compared with SMAJ85CA and 1.5SMC82CA, P6SMB82CAHE3/5B offers optimal balance of AEC-Q101 qualification, compact SMB footprint, and precise 70.1 V standoff - making it preferred for space-constrained automotive and industrial PCBs where 600 W surge handling suffices.
Availability
P6SMB82CAHE3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter designs requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB82CAHE3/5B 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 high-reliability, automotive-qualified, and industry-standard solutions.
The P6SMB Series targets cost-sensitive yet robust transient suppression needs in automotive, industrial, and telecom systems - engineered for automated SMT placement, high surge survivability, and compliance with AEC-Q101 and RoHS.
FAQ
What is the standoff voltage of P6SMB82CAHE3/5B and how does it relate to system operating voltage?
The P6SMB82CAHE3/5B has a maximum reverse standoff voltage (VWM) of 70.1 V, meaning it remains non-conductive up to this DC or RMS voltage in either direction. This value provides ≥10 % margin above a typical 64 V nominal automotive or industrial rail, ensuring reliable blocking during normal operation while allowing rapid clamping during transients exceeding that threshold. The P6SMB82CAHE3/5B is therefore appropriate for 48 V–72 V systems where sustained overvoltage must be avoided.
Is P6SMB82CAHE3/5B suitable for automotive applications?
Yes, P6SMB82CAHE3/5B is AEC-Q101 qualified (indicated by the "HE3" suffix and revision "B"), having passed stress tests including high-temperature reverse bias, temperature cycling, and ESD per JESD22-A114. Its 150 °C maximum junction temperature, MSL Level 1 rating, and bidirectional clamping make it suitable for under-hood engine control units, ADAS camera modules, and body electronics where transient immunity and long-term reliability are critical. The P6SMB82CAHE3/5B meets automotive-grade manufacturing and traceability requirements.
How does the clamping performance of P6SMB82CAHE3/5B compare to its breakdown voltage?
The P6SMB82CAHE3/5B exhibits a clamping voltage (VC) of 113 V at 5.3 A, measured under a 10/1000 µs surge waveform, while its breakdown voltage (VBR) ranges from 77.9 V to 86.1 V at 1 mA. This yields a clamping ratio (VC/VBR) of approximately 1.45, indicating tight voltage control during surge events. That ratio ensures protected circuits experience minimal overvoltage beyond the avalanche onset - a key advantage of the P6SMB82CAHE3/5B in safeguarding sensitive 75 V-tolerant transceivers and power management ICs.
What is the thermal resistance of P6SMB82CAHE3/5B and how does it affect PCB layout?
P6SMB82CAHE3/5B 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 - as specified in the datasheet's test condition. To maintain safe junction temperatures during repetitive surges, designers must provide adequate copper area and avoid excessive trace length. Reducing pad size or omitting thermal vias increases RθJA, risking thermal runaway; thus, the P6SMB82CAHE3/5B requires adherence to Vishay's recommended mounting layout for rated performance.
Does P6SMB82CAHE3/5B have polarity markings, and how is it oriented on the PCB?
No, P6SMB82CAHE3/5B is a bidirectional TVS and carries no polarity marking - unlike unidirectional variants which feature a cathode band. Its symmetrical internal structure allows installation in either orientation on the PCB without affecting clamping behavior. This simplifies layout and eliminates risk of reverse placement during automated assembly. The absence of marking is consistent across all CA-suffixed P6SMB devices, including the P6SMB82CAHE3/5B, and is explicitly confirmed in the mechanical data section of the Vishay datasheet.
P6SMB82CAHE3/5B 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:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB82CAHE3/5B FAQ
1.How can I place an order for P6SMB82CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB82CAHE3/5B 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 P6SMB82CAHE3/5B reliable?
The price and inventory of P6SMB82CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB82CAHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB82CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB82CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB82CAHE3/5B?
P6SMB82CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB82CAHE3/5B 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 P6SMB82CAHE3/5B?
For technical support, including P6SMB82CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB82CAHE3/5B requirements.
6.How does Aetrix verify that P6SMB82CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB82CAHE3/5B 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 P6SMB82CAHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB82CAHE3/5B?
All P6SMB82CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB82CAHE3/5B, 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 P6SMB82CAHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB82CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB82CAHE3/5B Tags
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