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Vishay General Semiconductor - Diodes Division P6SMB6.8AHM3/H
- Part No.:
- P6SMB6.8AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB6.8AHM3/H.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,015
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Product details
Overview
P6SMB6.8AHM3/H 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 6.45 V minimum breakdown voltage (VBR), 5.80 V maximum stand-off voltage (VWM), 10.5 V 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 MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB6.8AHM3/H datasheet, P6SMB6.8AHM3/H pinout, P6SMB6.8AHM3/H application, or P6SMB6.8AHM3/H equivalent, this device is selected for robust ESD and surge protection where low clamping voltage, fast response (<1 ns), and AEC-Q101 qualification (via HM3 suffix) are required in space-constrained PCB layouts.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche performance and low incremental surge resistance. Its thermal resistance (RθJA = 100 °C/W) and 150 °C max junction temperature support operation under repetitive surge conditions when mounted on 5.0 mm × 5.0 mm copper pads.
The device delivers 100 A non-repetitive forward surge current (IFSM) and maintains <1000 μA reverse leakage at VWM, enabling reliable protection of 5 V logic rails and 12 V automotive subsystems without false triggering during normal operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min) | 6.45 V - ensures reliable avalanche conduction above nominal 5 V rail without premature clamping |
| VWM | 5.80 V - maximum continuous reverse voltage before leakage exceeds 1000 μA; compatible with 5 V systems |
| VC @ IPPM | 10.5 V - clamping voltage at 57.1 A peak pulse; limits downstream IC stress to safe levels during surge events |
| PPPM | 600 W - peak pulse power handling with 10/1000 μs waveform supports IEC 61000-4-5 Level 4 compliance |
| IPPM | 57.1 A - peak pulse current capability enables protection against high-energy transients like load dump |
| TJ max | +150 °C - extended junction temperature rating supports under-hood automotive use with HM3 qualification |
| Package | SMB (DO-214AA) - standardized surface-mount footprint with 0.220" × 0.130" body; compatible with automated placement |
Pinout & Package
SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL level 1 (260 °C peak reflow), dimensions 3.94 mm × 2.20 mm × 1.52 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-side reference; completes clamping loop during transient events |
| Cathode | Avalanche conduction terminal | Marked with band; connected to protected line (e.g., 5 V rail); conducts when VIN > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 surge test Level 4 (4 kV, 2 Ω source impedance) without degradation |
| Glass passivated chip junction | Ensures stable VBR tolerance (±5%) and long-term reliability under thermal cycling |
| Low clamping ratio (VC/VBR ≈ 1.63) | Minimizes overvoltage stress on protected ICs compared to higher-ratio TVS devices |
| Halogen-free & RoHS-compliant (HM3) | Meets automotive environmental requirements and JESD201 Class 2 whisker resistance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V microcontroller supply lines in vehicle body control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between VCC and GND, responding within <1 ns to suppress transients exceeding 5.8 V. Use Value: Limits voltage seen by MCU to ≤10.5 V during 57.1 A surges, preventing latch-up or gate oxide damage. |
Use Scenario: Safeguarding analog output lines of pressure sensors in factory automation PLCs subject to inductive switching noise. IC Role / Device Role / Timing Role: Standoff-rated TVS on 4–20 mA current loop outputs, conducting only during >6.45 V excursions. Use Value: Maintains signal integrity below 5.8 V while clamping fast EFT bursts (IEC 61000-4-4) to safe levels. |
| Consumer USB Port ESD Protection | Telecom DC Power Input Protection |
Use Scenario: Secondary-level ESD protection on VBUS line of USB 2.0 ports in set-top boxes and smart displays. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed after primary fuse, triggered by ±8 kV contact discharge (IEC 61000-4-2). Use Value: Clamps ESD events to ≤10.5 V within nanoseconds, preserving USB PHY functionality without data corruption. |
Use Scenario: Front-end surge suppression on 12 V DC input of VoIP gateways installed in telecom cabinets. IC Role / Device Role / Timing Role: Primary transient limiter on DC input before DC/DC converter, absorbing 600 W surges per IEC 61000-4-5. Use Value: Prevents shutdown or damage to upstream regulators during lightning-induced surges on building wiring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8A | Same VBR (6.45–7.14 V), but lower PPPM (400 W) and higher VC (11.5 V); SMA package (smaller thermal mass) | Limited to lower-energy transients; not AEC-Q101 qualified | Select when cost or board area is critical and surge energy stays below 400 W |
| 1.5SMC6.8A | Higher PPPM (1500 W), larger SMC package, same VBR/VC specs; no AEC-Q101 option | Better for heavy industrial environments but requires 2× PCB area and lacks automotive qualification | Choose for high-reliability industrial power supplies where footprint is less constrained |
Compared with SMAJ6.8A and 1.5SMC6.8A, P6SMB6.8AHM3/H uniquely balances 600 W surge capacity, AEC-Q101 qualification, and SMB footprint - making it optimal for automotive and space-limited industrial designs requiring certified reliability.
Availability
P6SMB6.8AHM3/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, and consumer power interface protection requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for P6SMB6.8AHM3/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, efficiency, and automotive-grade qualification.
The P6SMB Series targets high-energy transient suppression in compact surface-mount form factors, specifically engineered for automotive, industrial, and telecom applications demanding AEC-Q101 compliance and robust 10/1000 μs surge handling.
FAQ
What is the clamping voltage of P6SMB6.8AHM3/H at its rated peak pulse current?
The P6SMB6.8AHM3/H has a maximum clamping voltage (VC) of 10.5 V at its rated peak pulse current (IPPM) of 57.1 A, measured using a 10/1000 μs waveform. This value ensures downstream components see limited overvoltage during surge events, and is confirmed in the Vishay P6SMB datasheet revision 09-Jan-2024, page 2. The P6SMB6.8AHM3/H achieves this with low incremental surge resistance and fast avalanche response.
Is P6SMB6.8AHM3/H qualified for automotive applications?
Yes, P6SMB6.8AHM3/H is AEC-Q101 qualified, as indicated by the "HM3" suffix (halogen-free, RoHS-compliant, and AEC-Q101 qualified). The "_B" revision code in the ordering part number confirms automotive qualification per the Vishay P6SMB datasheet, page 3. This makes P6SMB6.8AHM3/H suitable for under-hood and chassis-mounted automotive electronics requiring validated reliability.
What does the "H" in P6SMB6.8AHM3/H signify?
The "H" in P6SMB6.8AHM3/H denotes the packaging configuration: 7-inch diameter plastic tape and reel, with 750 units per reel. This is specified in the Ordering Information table on page 3 of the Vishay P6SMB datasheet. The "HM3" portion confirms halogen-free, RoHS-compliant, and AEC-Q101 qualified construction, while "H" exclusively refers to reel size and quantity - not electrical or thermal characteristics.
How does P6SMB6.8AHM3/H differ from the standard P6SMB6.8A-E3?
P6SMB6.8AHM3/H differs from P6SMB6.8A-E3 in three key ways: it uses halogen-free molding compound (vs. standard RoHS), carries AEC-Q101 qualification (vs. commercial grade only), and ships in 7" tape-and-reel (H) versus the E3 variant's unspecified reel format. Electrically and thermally, both share identical VBR, VWM, VC, and PPPM specs per the Vishay datasheet - the P6SMB6.8AHM3/H is an automotive-enhanced version of the base P6SMB6.8A platform.
What is the maximum operating junction temperature for P6SMB6.8AHM3/H?
The maximum operating junction temperature (TJ max) for P6SMB6.8AHM3/H is +150 °C, as stated in the Maximum Ratings table on page 1 of the Vishay P6SMB datasheet. This rating applies across its full operating range and supports sustained operation in high-ambient environments such as automotive engine compartments or industrial enclosures. Derating begins above 25 °C ambient per Figure 2 in the same document.
P6SMB6.8AHM3/H 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):
- 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)
P6SMB6.8AHM3/H FAQ
1.How can I place an order for P6SMB6.8AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB6.8AHM3/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 P6SMB6.8AHM3/H reliable?
The price and inventory of P6SMB6.8AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB6.8AHM3/H is usually 5 days.
3.What payment methods are accepted for P6SMB6.8AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB6.8AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB6.8AHM3/H?
P6SMB6.8AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB6.8AHM3/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 P6SMB6.8AHM3/H?
For technical support, including P6SMB6.8AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB6.8AHM3/H requirements.
6.How does Aetrix verify that P6SMB6.8AHM3/H is sourced from the original manufacturer or authorized distributors?
All P6SMB6.8AHM3/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 P6SMB6.8AHM3/H meets industry standards.
7.What is the process for return or replacement of P6SMB6.8AHM3/H?
All P6SMB6.8AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB6.8AHM3/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 P6SMB6.8AHM3/H part is unused and in its original packaging.
Return procedure for P6SMB6.8AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB6.8AHM3/H Tags
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