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Vishay General Semiconductor - Diodes Division P6SMB68CAHE3/52
- Part No.:
- P6SMB68CAHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB68CAHE3/52.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,146
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Product details
Overview
P6SMB68CAHE3/52 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 and power lines. It features a 68 V breakdown voltage (VBR min/max = 64.6–71.4 V), 600 W peak pulse power (10/1000 µs), and clamps to ≤92.0 V at 6.5 A peak pulse current - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line surge suppression.
For engineers reviewing the P6SMB68CAHE3/52 datasheet, P6SMB68CAHE3/52 pinout, P6SMB68CAHE3/52 application, or P6SMB68CAHE3/52 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, SMB (DO-214AA) package compatibility, and compliance with IEC 61000-4-2/4-4/4-5 transient immunity requirements.
Technical Context
This TVS diode operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 µA at 58.1 V stand-off).
The device delivers 600 W peak pulse power under standardized 10/1000 µs waveform conditions with 0.01% duty cycle, and exhibits fast response time (<1.0 ns) and low dynamic impedance - critical for suppressing ESD, lightning-induced surges, and inductive switching spikes before sensitive downstream circuitry is damaged.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 64.6–71.4 V at 1.0 mA test current - defines precise clamping onset threshold for bidirectional overvoltage events |
| Stand-off Voltage VWM | 58.1 V maximum - ensures no conduction during normal operation up to rated working voltage |
| Clamping Voltage VC | ≤92.0 V at 6.5 A peak pulse - limits transient voltage seen by protected ICs or MOSFETs |
| Peak Pulse Power PPPM | 600 W (10/1000 µs waveform) - sustains high-energy transients common in automotive load-dump or industrial switching |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with automated assembly and meets UL 94 V-0 flammability rating |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock per JESD22 standards |
| Maximum Junction Temperature | 150 °C - supports operation in under-hood or industrial environments with elevated ambient temperatures |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); polarity unmarked for bidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Terminal 1 | One side of symmetrical PN junction - forms bidirectional clamping path with Cathode terminal |
| Cathode | Terminal 2 | Other side of symmetrical PN junction - no band marking; identical electrical role to Anode in bidirectional configuration |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables protection of AC signals, differential buses (e.g., RS-485), and ungrounded lines without polarity constraints |
| 600 W peak pulse power | Withstands high-energy transients such as ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave (10/700 µs) |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, ADAS sensors, and infotainment interfaces |
| Glass passivated junction | Ensures long-term stability of VBR, low leakage (<1 µA), and resistance to moisture-induced degradation |
| MSL Level 1 (260 °C) | Compatible with standard lead-free reflow soldering processes without preconditioning or baking |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus nodes and analog sensor outputs (e.g., pressure, temperature) from ESD and load-dump transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential signal pair or supply rail to limit transient excursions. Use Value: Prevents latch-up or permanent damage to microcontrollers and analog front-ends while maintaining signal integrity below 92.0 V clamping level. |
Use Scenario: Safeguarding RS-485 transceivers in factory automation PLCs against induced surges from motor drives and relay switching. IC Role / Device Role / Timing Role: Low-capacitance (typ. <50 pF) TVS placed between A/B lines and ground to suppress common-mode transients without distorting data rates up to 10 Mbps. Use Value: Maintains communication reliability in noisy industrial environments while meeting IEC 61000-4-4 (EFT) and -4-5 (surge) immunity requirements. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Shielding Ethernet PHYs and DSL line drivers from lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Primary-level surge protector mounted at connector entry point, coordinated with secondary GDT or MOV stages. Use Value: Limits let-through energy to <10 mJ per event, preserving integrity of integrated magnetics and PHY ICs rated for ≤100 V abs max. |
Use Scenario: Input-stage transient suppression in wall-mounted AC/DC adapters for smart home devices exposed to mains-borne surges. IC Role / Device Role / Timing Role: Bidirectional clamp across bridge rectifier output or bulk capacitor to absorb switching spikes and brownout recovery transients. Use Value: Extends electrolytic capacitor lifetime by reducing voltage stress peaks and prevents false triggering of overvoltage protection circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ68CA | Same 68 V bidirectional breakdown but lower 400 W PPPM; SMA package (smaller footprint, higher thermal resistance) | Limited to lower-energy transients (e.g., ESD-only); unsuitable for load-dump or IEC 61000-4-5 Level 3+ | Select when board space is constrained and surge energy is limited to <400 W; verify thermal derating at 100 °C ambient. |
| 1.5KE68CA | Through-hole DO-201 package; same 68 V VBR and 600 W rating but larger size and manual assembly requirement | Used in legacy industrial power supplies where SMT is not feasible; lacks AEC-Q101 qualification | Choose for prototyping or repair scenarios requiring hand-solderable replacement; not recommended for new automotive designs. |
Compared with SMAJ68CA and 1.5KE68CA, P6SMB68CAHE3/52 uniquely combines AEC-Q101 qualification, SMB surface-mount compatibility, and full 600 W surge handling - making it the preferred choice for production automotive and high-reliability industrial PCBs requiring automated assembly and extended temperature operation.
Availability
P6SMB68CAHE3/52 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial RS-485 gateways, and telecom line interface cards requiring stable component supply, AEC-Q101 compliance, and consistent SMB package form factor.
Supply support for P6SMB68CAHE3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific performance.
The P6SMB Series is engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated through proven clamping performance and qualification rigor.
FAQ
What is the clamping voltage of P6SMB68CAHE3/52 at its rated peak pulse current?
The P6SMB68CAHE3/52 clamps to a maximum of 92.0 V at its specified peak pulse current of 6.5 A under the 10/1000 µs waveform condition. This value is measured per JEDEC standards and guarantees that downstream circuitry will not experience voltages exceeding this threshold during transient events, ensuring reliable protection for 3.3 V or 5 V logic interfaces and analog sensors.
Is P6SMB68CAHE3/52 suitable for automotive applications?
Yes, P6SMB68CAHE3/52 is AEC-Q101 qualified and specifically designated for automotive use with the "HE3" suffix indicating RoHS-compliant and AEC-Q101 qualified construction. It has passed stress tests including temperature cycling, humidity bias, and mechanical shock - making it appropriate for engine control units, body electronics, and ADAS sensor modules operating from −40 °C to +125 °C ambient.
How does the bidirectional configuration of P6SMB68CAHE3/52 affect its usage compared to unidirectional variants?
The bidirectional configuration of P6SMB68CAHE3/52 allows it to protect AC-coupled or floating signal lines - such as RS-485 differential pairs or transformer-isolated interfaces - without requiring polarity awareness during placement. Unlike unidirectional versions (e.g., P6SMB68A), it conducts equally in both directions, eliminating risk of incorrect orientation and simplifying layout for symmetric protection schemes.
What is the maximum reverse leakage current for P6SMB68CAHE3/52 at its working voltage?
At its maximum stand-off voltage of 58.1 V, the P6SMB68CAHE3/52 exhibits a maximum reverse leakage current of 1.0 µA at 25 °C. This low leakage ensures minimal power loss and avoids false triggering of monitoring circuits, supporting reliable operation in battery-powered or low-quiescent-current systems where standby current budget is critical.
Does P6SMB68CAHE3/52 require special PCB layout considerations?
Yes - for optimal transient suppression, P6SMB68CAHE3/52 should be placed as close as possible to the protected port or connector with short, wide traces to minimize inductance. The recommended mounting pad layout is 5.0 mm × 5.0 mm copper per terminal per Vishay's datasheet; inadequate copper area reduces effective power dissipation and may cause thermal runaway during repetitive surges.
P6SMB68CAHE3/52 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):
- 58.1V
- Voltage - Breakdown (Min):
- 64.6V
- Voltage - Clamping (Max) @ Ipp:
- 92V
- Current - Peak Pulse (10/1000µs):
- 6.5A
- 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)
P6SMB68CAHE3/52 FAQ
1.How can I place an order for P6SMB68CAHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB68CAHE3/52 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 P6SMB68CAHE3/52 reliable?
The price and inventory of P6SMB68CAHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB68CAHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB68CAHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB68CAHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB68CAHE3/52?
P6SMB68CAHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB68CAHE3/52 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 P6SMB68CAHE3/52?
For technical support, including P6SMB68CAHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB68CAHE3/52 requirements.
6.How does Aetrix verify that P6SMB68CAHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB68CAHE3/52 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 P6SMB68CAHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB68CAHE3/52?
All P6SMB68CAHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB68CAHE3/52, 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 P6SMB68CAHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB68CAHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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