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Vishay General Semiconductor - Diodes Division P6SMB6.8CAHE3/52
- Part No.:
- P6SMB6.8CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB6.8CAHE3/52.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,024
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Product details
Overview
P6SMB6.8CAHE3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 6.8 V breakdown voltage (VBR = 6.45–7.14 V at 10 mA), 10.5 V maximum clamping voltage (VC) at 57.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - used to protect I/O ports of automotive sensor modules and industrial PLC inputs.
For engineers reviewing the P6SMB6.8CAHE3/52 datasheet, P6SMB6.8CAHE3/52 pinout, P6SMB6.8CAHE3/52 application, or P6SMB6.8CAHE3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VBR ≈ 1.55), RoHS-compliant matte tin terminations, and MSL Level 1 moisture sensitivity.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1000 µA leakage at 5.8 V stand-off), but conducts heavily when reverse voltage exceeds its 6.8 V nominal breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and fast response (<1 ns).
The bidirectional configuration enables symmetric protection on AC-coupled or differential lines without polarity constraints. Thermal resistance is RθJA = 100 °C/W (on 0.2" × 0.2" copper pads), supporting operation up to TJ = 150 °C with derating above 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 6.45–7.14 V at 10 mA test current - defines precise clamping onset for overvoltage events |
| Stand-off Voltage VWM | 5.80 V - maximum continuous reverse working voltage before leakage exceeds 1000 µA |
| Clamping Voltage VC | 10.5 V at 57.1 A peak pulse - limits transient voltage seen by protected IC to safe level |
| Peak Pulse Power PPPM | 600 W with 10/1000 µs waveform - sustains single high-energy surges common in automotive load-dump or inductive switching |
| Peak Pulse Current IPPM | 57.1 A - determines minimum trace width and PCB copper area needed for reliable energy dissipation |
| Operating Temperature | -65 to +150 °C - supports under-hood automotive and industrial environments without derating loss |
| AEC-Q101 Qualified | Yes - validated for automotive electronics per stress test requirements including HTOL, TC, and HTRB |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. No polarity marking for bidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (bidirectional) | Conducts during positive or negative overvoltage excursions relative to cathode |
| Cathode | Transient current exit (bidirectional) | Serves as reference node; no band marking distinguishes polarity in CA devices |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables symmetrical protection on AC, differential, or floating signal lines without external polarity management |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 (4 kV) surge events when properly mounted on 5 mm × 5 mm copper pads |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, high-temperature operating life, and unbiased HAST |
| MSL Level 1 rating | Allows unlimited floor life and reflow up to 260 °C peak without baking - simplifies SMT manufacturing |
| Low clamping ratio (VC/VBR) | 1.55 typical - minimizes voltage overshoot during clamping, critical for protecting 3.3 V or 5 V logic interfaces |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Analog Input Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and Hall-effect sensor outputs from load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Shunt TVS placed across signal line and ground to clamp transients before reaching sensitive input circuitry. Use Value: Prevents latch-up or permanent damage to 5 V tolerant receivers during 12 V system surges up to 600 W peak. |
Use Scenario: Safeguarding 4–20 mA current loop inputs against field-wiring induced surges and electrostatic discharge. IC Role / Device Role / Timing Role: Bidirectional clamping element connected between signal terminal and chassis ground. Use Value: Maintains signal integrity below 10.5 V clamping threshold while surviving repeated 10/1000 µs transients per IEC 61000-4-5. |
| Consumer USB Port ESD Protection | Telecom Line Card Surge Suppression |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D− lines downstream of primary polymer-based TVS. IC Role / Device Role / Timing Role: Fast-response voltage clamp limiting transient voltage to <12 V during ±15 kV contact discharge. Use Value: Complements primary protection with sub-nanosecond response and low capacitance (<100 pF at 0 V), preserving signal rise time. |
Use Scenario: Front-end surge suppression on telephone line interface circuits exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary shunt protector across tip/ring terminals before line transformer or codec IC. Use Value: Absorbs up to 600 W of surge energy while maintaining <10.5 V clamping to prevent damage to SLIC or ADSL front-end components. |
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 | Same VBR range (6.45–7.14 V), lower PPPM (400 W), SMA package (DO-214AC), higher RθJA (150 °C/W) | Limited to lower-energy transients; less suitable for automotive load-dump where 600 W is required | Select when board space allows larger SMA footprint and surge energy is ≤400 W |
| 1.5KE6.8CA | Higher PPPM (1500 W), axial leaded DO-201 package, slower thermal response, not surface-mount | Requires through-hole assembly and additional mounting hardware; incompatible with automated SMT lines | Choose only for legacy through-hole designs needing higher surge margin and manual assembly |
Compared with SMAJ6.8CA and 1.5KE6.8CA, P6SMB6.8CAHE3/52 delivers optimal balance of 600 W surge handling, AEC-Q101 compliance, and SMB footprint - making it preferred for new automotive and industrial SMT designs requiring validated reliability and compact layout.
Availability
P6SMB6.8CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC analog inputs, consumer USB port protection, and telecom line card surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB6.8CAHE3/52 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, efficiency, and application-specific validation.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for robustness under repetitive surge stress and qualified to AEC-Q101 for under-hood deployment.
FAQ
What does the "CA" suffix mean in P6SMB6.8CAHE3/52?
The "CA" suffix denotes a bidirectional configuration: P6SMB6.8CAHE3/52 provides symmetrical clamping for both positive and negative voltage transients, unlike unidirectional "A" variants. This eliminates polarity concerns during placement and enables protection on AC-coupled or differential signal paths. The device has no cathode band marking, consistent with bidirectional TVS design.
Is P6SMB6.8CAHE3/52 suitable for automotive applications?
Yes, P6SMB6.8CAHE3/52 is AEC-Q101 qualified (indicated by the "HE3" suffix), having passed stress tests including high-temperature operating life, temperature cycling, and unbiased HAST. It is rated for operation from -65 °C to +150 °C and meets MSL Level 1 - making it appropriate for engine control units, body electronics, and ADAS sensor interfaces.
What is the clamping voltage of P6SMB6.8CAHE3/52 at its rated peak pulse current?
P6SMB6.8CAHE3/52 has a maximum clamping voltage (VC) of 10.5 V at 57.1 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring compatibility with 3.3 V or 5 V logic interfaces.
How does the SMB package of P6SMB6.8CAHE3/52 compare to SMA or SMC alternatives?
The SMB (DO-214AA) package of P6SMB6.8CAHE3/52 offers a 50 % smaller footprint than SMA (DO-214AC) and 70 % smaller than SMC (DO-214AB), enabling denser PCB layouts. Its RθJA of 100 °C/W (on 5 mm × 5 mm pads) balances thermal performance and size - superior to SMA's 150 °C/W, though less than SMC's 60 °C/W. It is optimized for automated placement and reflow up to 260 °C.
What is the maximum reverse leakage current for P6SMB6.8CAHE3/52 at its stand-off voltage?
At its maximum stand-off voltage (VWM) of 5.80 V, P6SMB6.8CAHE3/52 exhibits a maximum reverse leakage current (ID) of 1000 µA at 25 °C. This low leakage ensures minimal power loss and signal distortion in always-on monitoring circuits, such as sensor bias networks or high-impedance analog inputs where standby current budget is constrained.
P6SMB6.8CAHE3/52 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB6.8CAHE3/52 FAQ
1.How can I place an order for P6SMB6.8CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB6.8CAHE3/52 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 P6SMB6.8CAHE3/52 reliable?
The price and inventory of P6SMB6.8CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB6.8CAHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB6.8CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB6.8CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB6.8CAHE3/52?
P6SMB6.8CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB6.8CAHE3/52 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 P6SMB6.8CAHE3/52?
For technical support, including P6SMB6.8CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB6.8CAHE3/52 requirements.
6.How does Aetrix verify that P6SMB6.8CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB6.8CAHE3/52 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 P6SMB6.8CAHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB6.8CAHE3/52?
All P6SMB6.8CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB6.8CAHE3/52, 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 P6SMB6.8CAHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB6.8CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB6.8CAHE3/52 Tags
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