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Vishay General Semiconductor - Diodes Division P6SMB68AHE3/5B
- Part No.:
- P6SMB68AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB68AHE3/5B.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,408
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Product details
Overview
P6SMB68AHE3/5B from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 68 V breakdown voltage (VBR = 64.6–71.4 V at IT = 1.0 mA), 58.1 V stand-off voltage (VWM), and 92.0 V maximum clamping voltage (VC) at 6.5 A peak pulse current (IPPM), delivering 600 W peak pulse power with 10/1000 µs waveform - used in automotive sensor protection and industrial DC power rail surge suppression.
For engineers reviewing the P6SMB68AHE3/5B datasheet, P6SMB68AHE3/5B pinout, P6SMB68AHE3/5B application, or P6SMB68AHE3/5B equivalent, this AEC-Q101 qualified TVS offers validated transient immunity for 12 V/24 V automotive subsystems, robust ESD/inductive-spike suppression in motor control interfaces, and RoHS-compliant, halogen-free construction with matte tin-plated leads solderable per J-STD-002.
Technical Context
This unidirectional TVS operates by avalanche breakdown to clamp overvoltage events before downstream ICs or MOSFETs are damaged. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low incremental surge resistance, enabling fast response (<1 ns) and repeatable clamping performance under repetitive 0.01 % duty cycle surges.
The device is rated for TJ = –65 °C to +150 °C operation, with thermal resistance RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), supporting reliable operation on standard 0.2" × 0.2" copper pads. Its polarity marking (cathode band) and DO-214AA footprint ensure compatibility with automated SMT placement and reflow profiles up to 260 °C peak (MSL Level 1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 64.6–71.4 V at 1.0 mA test current - defines precise avalanche initiation threshold for repeatable clamping onset |
| Stand-off Voltage VWM | 58.1 V - maximum continuous reverse working voltage without significant leakage (≤1.0 µA) |
| Clamping Voltage VC | 92.0 V at 6.5 A IPPM - limits transient voltage seen by protected circuit during 10/1000 µs surge |
| Peak Pulse Power PPPM | 600 W - sustains high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure |
| Peak Pulse Current IPPM | 6.5 A - maximum non-repetitive surge current capability under standardized 10/1000 µs waveform |
| Operating Temperature Range | –65 °C to +150 °C - supports under-hood automotive and industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads. Cathode indicated by a single band on the body; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts avalanche current to ground during overvoltage event |
| Anode (unbanded end) | Reference node | Typically tied to system ground or lower-potential rail; completes clamping path |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Withstands automotive load-dump and inductive switching surges without degradation |
| AEC-Q101 qualification (HE3 suffix) | Validated for automotive electronics per stress-test requirements including HTGB and TCT |
| Glass passivated junction | Ensures stable VBR, low leakage (<1 µA at VWM), and long-term reliability in humid environments |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
| RoHS-compliant & halogen-free (HE3) | Fulfills EU RoHS Directive 2011/65/EU and JEDEC JS709E material restrictions |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting microcontroller GPIO and CAN transceiver power rails from battery reverse-connection and load-dump transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between VCC and GND, triggered within <1 ns to limit voltage to ≤92 V. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V logic supplies during ISO 16750-2 Pulse 5a (75 V/350 ms) events. |
Use Scenario: Shielding 24 V digital input channels from inductive kickback when solenoids or relays de-energize. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to clamp transients before optocoupler or Schmitt trigger input stage. Use Value: Maintains functional safety integrity by limiting input voltage to <92 V during 100 V/100 ms surges per IEC 61000-4-5 Level 3. |
| Automotive HVAC Blower Motor Driver | Telecom Power Supply Input Stage |
Use Scenario: Safeguarding N-channel MOSFET gate drivers and sense resistors from back-EMF spikes during PWM commutation of brushed DC motors. IC Role / Device Role / Timing Role: TVS placed across motor supply rail (VBAT–GND) to absorb energy from L·di/dt transients. Use Value: Enables use of cost-effective discrete FETs instead of integrated smart drivers by absorbing ≥600 W pulses without derating. |
Use Scenario: Front-end protection for AC/DC adapter inputs against lightning-induced surges on telecom site power feeds. IC Role / Device Role / Timing Role: First-stage unidirectional suppressor on primary-side rectifier output, coordinated with MOV and fuse. Use Value: Provides precise 58.1 V clamping threshold to avoid nuisance tripping while ensuring downstream capacitor voltage stays below 100 V rating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ68A-E3/5B | Same VBR range (64.6–71.4 V), but lower PPPM (400 W) and higher VC (113 V at 3.5 A); SMA package (DO-214AC), smaller footprint | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a compliance | Select when board space is constrained and surge energy is ≤400 W |
| 1.5SMC68A | Same electrical specs (VBR, VWM, VC, PPPM), but larger SMC (DO-214AB) package; higher thermal mass improves power handling margin | Better thermal performance in high-ambient or high-duty-cycle environments; requires larger PCB area | Choose for industrial power supplies where sustained surge repetition occurs |
Compared with SMAJ68A-E3/5B, P6SMB68AHE3/5B delivers 50 % higher peak pulse power and tighter clamping, making it suitable for automotive-grade surge immunity; versus 1.5SMC68A, it reduces PCB area by ~30 % while maintaining full 600 W capability - ideal for space-constrained AEC-Q101 designs.
Availability
P6SMB68AHE3/5B is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and telecom power input stages requiring stable component supply, AEC-Q101 validation, and RoHS/halogen-free compliance.
Supply support for P6SMB68AHE3/5B 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, and protection devices with emphasis on reliability, precision, and automotive qualification.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for consistent clamping performance, low leakage, and MSL Level 1 manufacturability.
FAQ
What is the clamping voltage of P6SMB68AHE3/5B at its rated peak pulse current?
The P6SMB68AHE3/5B has a maximum clamping voltage (VC) of 92.0 V at 6.5 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per Figure 1 in Vishay Document 88370 and defines the upper voltage limit imposed on protected circuits during surge events. The P6SMB68AHE3/5B maintains this clamping performance across its full operating temperature range.
Is P6SMB68AHE3/5B suitable for automotive applications?
Yes, P6SMB68AHE3/5B is AEC-Q101 qualified (denoted by the HE3 suffix) and specifically tested for automotive reliability including temperature cycling, high-temperature reverse bias, and ESD. Its 600 W peak pulse power, 58.1 V stand-off voltage, and –65 °C to +150 °C operating range make P6SMB68AHE3/5B appropriate for BCM, HVAC, and ADAS subsystems exposed to ISO 7637-2 and ISO 16750-2 transients.
What does the "HE3/5B" suffix indicate in P6SMB68AHE3/5B?
The "HE3" suffix denotes RoHS-compliant, halogen-free, and AEC-Q101 qualified construction; "5B" specifies packaging in 13-inch diameter plastic tape and reel with 3200 units per reel. This differs from "52" (7-inch reel, 750 units) and confirms P6SMB68AHE3/5B meets automotive supply chain traceability and environmental requirements per Vishay's ordering matrix in Document 88370.
How does P6SMB68AHE3/5B compare to bidirectional variants like P6SMB68CA?
P6SMB68AHE3/5B is unidirectional with cathode marking and optimized for DC rail protection; P6SMB68CA is bidirectional, lacking polarity marking and intended for AC line or differential signal protection. Their VBR and VC values differ: P6SMB68CA has symmetric breakdown (64.6–71.4 V in both directions) but higher VC (103 V). P6SMB68AHE3/5B cannot substitute for P6SMB68CA in AC-coupled applications due to polarity dependence.
What is the thermal resistance of P6SMB68AHE3/5B, and how does it affect layout design?
P6SMB68AHE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W, measured on 0.2" × 0.2" copper pads. To maintain safe junction temperatures during repetitive surges, PCB layout must provide adequate copper area per Vishay's recommended pad dimensions (0.086" × 0.060" minimum). Reducing trace length and increasing copper weight lowers effective RθJA and improves P6SMB68AHE3/5B reliability.
P6SMB68AHE3/5B 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:
- 1
- Bidirectional Channels:
- -
- 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)
P6SMB68AHE3/5B FAQ
1.How can I place an order for P6SMB68AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB68AHE3/5B 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 P6SMB68AHE3/5B reliable?
The price and inventory of P6SMB68AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB68AHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB68AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB68AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB68AHE3/5B?
P6SMB68AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB68AHE3/5B 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 P6SMB68AHE3/5B?
For technical support, including P6SMB68AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB68AHE3/5B requirements.
6.How does Aetrix verify that P6SMB68AHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB68AHE3/5B 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 P6SMB68AHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB68AHE3/5B?
All P6SMB68AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB68AHE3/5B, 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 P6SMB68AHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB68AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB68AHE3/5B Tags
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