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Vishay General Semiconductor - Diodes Division P6SMB6.8CAHE3_B/H
- Part No.:
- P6SMB6.8CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB6.8CAHE3_B/H.pdf
- Description:
- 600W,6.8V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,052
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Product details
Overview
P6SMB6.8CAHE3_B/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 6.8 V breakdown voltage (VBR min = 6.45 V), 5.8 V stand-off voltage (VWM), 10.5 V maximum clamping voltage at 57.1 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 control systems.
For engineers reviewing the P6SMB6.8CAHE3_B/H datasheet, P6SMB6.8CAHE3_B/H pinout, P6SMB6.8CAHE3_B/H application, or P6SMB6.8CAHE3_B/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping voltage under surge, RoHS-compliant matte tin plating, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This device operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while low incremental surge resistance minimizes voltage overshoot during ESD or lightning-induced surges.
Rated for 150 °C maximum junction temperature and MSL Level 1 (260 °C reflow peak), it supports high-reliability automotive applications when ordered with HE3 suffix and _B revision. Thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling effective power dissipation under repetitive 0.01% duty cycle pulses.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA test current - defines precise avalanche initiation threshold for reliable clamping onset |
| VWM | 5.8 V - maximum continuous reverse operating voltage before leakage exceeds 1000 µA |
| VC @ IPPM | 10.5 V at 57.1 A - clamped voltage during 600 W 10/1000 µs surge, limiting stress on downstream components |
| PPPM | 600 W - peak pulse power handling per single transient, derated above 25 °C ambient per Fig. 2 |
| IPPM | 57.1 A - maximum non-repetitive peak pulse current supported with 10/1000 µs waveform |
| TJ max | 150 °C - enables operation in under-hood automotive environments and industrial enclosures |
| Package | SMB (DO-214AA) - standardized 2-pin surface-mount outline with 0.220" × 0.130" footprint and 0.086" height |
Pinout & Package
Package: SMB (DO-214AA), bidirectional configuration - no polarity marking; symmetrical terminals function as interchangeable anode/cathode pair for AC-coupled or floating-line protection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Interchangeable terminal; forms one side of symmetrical avalanche junction - connects to protected line or ground reference |
| Terminal 2 | Cathode / Anode (bidirectional) | Interchangeable terminal; completes bidirectional clamping path - no cathode band marking required |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - supports under-hood and ADAS sensor protection |
| 600 W peak pulse power | Handles high-energy transients from inductive switching or ISO 7637-2 pulse 1/2a/5a without failure |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage drift across temperature and lifetime |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow profiles without preconditioning or baking |
| Matte tin plated leads | Meets J-STD-002 and JESD 22-B102 solderability standards - supports robust first-pass yield in SMT lines |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and chassis ground to shunt transients before they reach sensitive input stages. Use Value: Clamps 10.5 V at 57.1 A, preserving signal integrity below IC absolute maximum ratings while meeting ISO 16750-2 and ISO 10605 compliance thresholds. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring surges and relay contact bounce. IC Role / Device Role / Timing Role: Standoff protector on dry-contact or optocoupler input lines, absorbing repetitive 600 W pulses without degradation. Use Value: Maintains 5.8 V VWM margin above nominal 24 V supply, ensuring zero false triggering during normal operation while responding in <1 ns. |
| Consumer Power Adapter Output | Telecom Line Interface Protection |
|
Use Scenario: Secondary-side overvoltage suppression on 5 V/12 V USB-C PD and wall adapter outputs exposed to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Final-stage TVS across output rails to prevent damage to connected devices during fault conditions. Use Value: Low 10.5 V clamping voltage limits downstream component stress during 8/20 µs surge events, complementing primary-side MOVs. |
Use Scenario: Protection of Ethernet PHY interface pins and RS-485 transceivers in network switches and base stations against induced lightning surges. IC Role / Device Role / Timing Role: Differential-mode suppressor bridging data pairs (e.g., TX+/TX−) to clamp common-mode transients. Use Value: Symmetrical bidirectional structure enables balanced clamping without polarity concerns on full-duplex communication lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8CA-E3/61 | Same VBR/VC specs but SMA package (smaller footprint, lower thermal mass); 400 W PPPM | Limited to lower-energy transients; less suitable for automotive load dump where 600 W is required | Select when board space is constrained and surge energy remains ≤400 W |
| 1.5KE6.8CA | Through-hole DO-201 package; same 6.8 V bidirectional rating; 1500 W PPPM | Not SMT-compatible; higher mounting height and manual assembly requirement | Choose only for legacy through-hole designs or where higher pulse power margin is critical and reflow is not used |
Compared with SMAJ6.8CA-E3/61 and 1.5KE6.8CA, P6SMB6.8CAHE3_B/H uniquely balances 600 W surge capability, AEC-Q101 qualification, SMB SMT compatibility, and 10.5 V clamping - making it optimal for new automotive and industrial PCB designs requiring automated assembly and validated reliability.
Availability
P6SMB6.8CAHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, consumer power adapters, and telecom line interfaces requiring stable component supply with AEC-Q101 traceability and RoHS compliance.
Supply support for P6SMB6.8CAHE3_B/H 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-surge, surface-mount transient suppression in space-constrained and mission-critical applications - engineered specifically for automotive, industrial, and communications infrastructure where consistent clamping performance and AEC-Q101 compliance are mandatory.
FAQ
What does the "CA" suffix indicate in P6SMB6.8CAHE3_B/H?
The "CA" suffix denotes a bidirectional configuration: the device clamps transient voltages symmetrically in both polarities, with no cathode marking required. This makes P6SMB6.8CAHE3_B/H ideal for AC-coupled lines, differential buses like CAN or RS-485, and floating-ground applications where polarity cannot be assumed - unlike unidirectional "A" variants which require correct orientation during placement.
Is P6SMB6.8CAHE3_B/H suitable for automotive applications?
Yes - P6SMB6.8CAHE3_B/H carries AEC-Q101 qualification (indicated by the "HE3" and "_B" suffixes), confirming it has passed stress tests for temperature cycling, humidity, mechanical shock, and ESD required for automotive electronics. It is rated for −65 °C to +150 °C operation and meets MSL Level 1, supporting use in engine control units, body electronics, and ADAS sensor modules.
What is the maximum clamping voltage of P6SMB6.8CAHE3_B/H under surge conditions?
The maximum clamping voltage (VC) of P6SMB6.8CAHE3_B/H is 10.5 V at 57.1 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value represents the upper limit of voltage seen by protected circuitry during worst-case transient events, ensuring downstream ICs with 12 V absolute maximum ratings remain within safe operating margins.
How does the SMB package of P6SMB6.8CAHE3_B/H compare to SMA or SMC packages?
The SMB (DO-214AA) package of P6SMB6.8CAHE3_B/H offers a 0.220" × 0.130" footprint - larger than SMA (DO-214AC) but smaller than SMC (DO-214AB). This provides better thermal dissipation than SMA (100 °C/W vs. ~125 °C/W) while maintaining compatibility with standard pick-and-place equipment and 7" tape-and-reel delivery (H code). It strikes a balance between surge robustness and board space efficiency.
Does P6SMB6.8CAHE3_B/H require special PCB layout considerations?
Yes - Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 600 W pulse power. Smaller pads increase thermal resistance and reduce surge capability. Additionally, minimize trace inductance between P6SMB6.8CAHE3_B/H and protected node; place it as close as possible to the connector or IC input with short, wide traces to preserve sub-nanosecond response effectiveness.
P6SMB6.8CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 57.1A
- 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)
P6SMB6.8CAHE3_B/H FAQ
1.How can I place an order for P6SMB6.8CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB6.8CAHE3_B/H 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 P6SMB6.8CAHE3_B/H reliable?
The price and inventory of P6SMB6.8CAHE3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB6.8CAHE3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB6.8CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB6.8CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB6.8CAHE3_B/H?
P6SMB6.8CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB6.8CAHE3_B/H 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 P6SMB6.8CAHE3_B/H?
For technical support, including P6SMB6.8CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB6.8CAHE3_B/H requirements.
6.How does Aetrix verify that P6SMB6.8CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB6.8CAHE3_B/H 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 P6SMB6.8CAHE3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB6.8CAHE3_B/H?
All P6SMB6.8CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB6.8CAHE3_B/H, 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 P6SMB6.8CAHE3_B/H part is unused and in its original packaging.
Return procedure for P6SMB6.8CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB6.8CAHE3_B/H Tags
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