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Vishay General Semiconductor - Diodes Division P6SMB68AHE3_A/I
- Part No.:
- P6SMB68AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB68AHE3_A/I.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,632
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Product details
Overview
P6SMB68AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for robust overvoltage protection of sensitive electronics. It features a 68 V breakdown voltage (VBR = 64.6–71.4 V at 1 mA), 58.1 V stand-off voltage (VWM), and clamps transients to ≤92.0 V at 6.5 A peak pulse current (IPPM) under 10/1000 µs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the P6SMB68AHE3_A/I datasheet, P6SMB68AHE3_A/I pinout, P6SMB68AHE3_A/I application, or P6SMB68AHE3_A/I equivalent, this device delivers AEC-Q101 qualification, 600 W peak pulse power handling, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for high-reliability automotive and industrial designs requiring validated transient immunity without layout redesign.
Technical Context
This unidirectional TVS diode operates as a voltage-clamping protection element placed in parallel with protected circuitry. Its glass-passivated junction enables fast response (<1 ns), low leakage (<1 µA at VWM), and stable clamping performance across -65 °C to +150 °C operating junction temperature.
The device uses a standard SMB (DO-214AA) package with cathode band marking, optimized for automated SMT placement and compliant with J-STD-002 solderability standards. Thermal resistance is RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), supporting reliable power dissipation up to 5.0 W continuous at 50 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 64.6–71.4 V at 1 mA test current - defines precise clamping onset threshold for overvoltage events |
| Stand-off Voltage VWM | 58.1 V maximum - ensures no conduction during normal 58 V system operation |
| Clamping Voltage VC | ≤92.0 V at 6.5 A IPPM (10/1000 µs) - limits downstream voltage stress during surge |
| Peak Pulse Power PPPM | 600 W - sustains high-energy transients such as ISO 7637-2 pulse 1/2a/5a in automotive environments |
| Operating Temperature | -65 °C to +150 °C - supports under-hood automotive and wide-temperature industrial deployments |
| AEC-Q101 Qualified | Yes - certified for automotive-grade reliability per stress test requirements including HTOL, TCT, and ESD |
| Package | SMB (DO-214AA) - industry-standard 2-pin SMD footprint with 5.59 mm × 4.06 mm outline and 2.20 mm height |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and halogen-free (HM3 variant), MSL Level 1 rated (peak reflow 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to ground or low-side reference | Provides low-impedance path to ground during reverse-transient clamping; must be routed with minimal inductance |
| Cathode | Protected line connection; marked by band on package body | Connected to the line being protected (e.g., 48 V supply rail); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables compliance with ISO 7637-2 and IEC 61000-4-5 surge immunity requirements for automotive and industrial systems |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure |
| AEC-Q101 qualified (HE3/HM3 suffix) | Validates reliability for automotive applications including engine control, ADAS sensors, and body electronics |
| Low clamping ratio (VC/VBR ≈ 1.33) | Minimizes voltage overshoot during transients, protecting downstream MOSFETs and ICs with tight VDS or VIN margins |
| MSL Level 1, 260 °C peak reflow | Eliminates pre-baking requirement and supports standard lead-free SMT assembly processes |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 48 V battery-fed control modules against load dump and alternator surge transients per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between power input and ground, activated within <1 ns of overvoltage event. Use Value: Limits voltage to ≤92.0 V during 600 W surges, preventing damage to DC-DC controllers and microcontrollers rated for 65 V absolute max. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) of pressure/temperature sensors from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Parallel-connected transient suppressor on signal line, absorbing ±8 kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity with <1 µA leakage at 58.1 V, avoiding offset errors in precision 24-bit ADC front-ends. |
| Telecom DC Power Input Protection | Consumer Device USB Power Path Protection |
Use Scenario: Safeguarding PoE-powered network switches and base stations against lightning-induced surges on 48 V DC input. IC Role / Device Role / Timing Role: Primary clamping device on main DC bus, coordinated with upstream fuses and secondary filtering. Use Value: Withstands repetitive 10/1000 µs surges at 0.01% duty cycle, enabling >100,000 surge events over product lifetime. |
Use Scenario: Adding robustness to USB-C PD power delivery paths in portable medical monitors and smart home hubs. IC Role / Device Role / Timing Role: Secondary-level TVS on VBUS line, triggered after primary OVP but before buck converter input. Use Value: Clamps 15 kV air discharge to <92 V within nanoseconds, preventing latch-up in USB PD controllers like FUSB302. |
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 = 110 V at 3.7 A | Not AEC-Q101 qualified; intended for commercial-grade consumer/industrial use only | Select when cost sensitivity outweighs automotive qualification and 600 W surge margin is unnecessary |
| 1.5SMC68A | Identical electrical specs but in larger SMC (DO-214AB) package (7.11 mm × 6.22 mm), RθJA = 60 °C/W | Requires PCB area increase (~2.5× footprint); better thermal performance but incompatible with dense SMB layouts | Choose only if thermal derating demands lower junction temperature rise under sustained surge conditions |
Compared with SMAJ68A-E3/5B and 1.5SMC68A, P6SMB68AHE3_A/I uniquely combines AEC-Q101 qualification, SMB footprint compatibility, and full 600 W surge rating - making it the optimal choice for space-constrained, automotive-grade 48–60 V system protection where reliability and board real estate are both critical.
Availability
P6SMB68AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power inputs requiring stable component supply with guaranteed long-term lifecycle support.
Supply support for P6SMB68AHE3_A/I 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 optimization.
The P6SMB Series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where AEC-Q101 compliance, compact SMB packaging, and repeatable 600 W clamping performance are mandatory.
FAQ
What is the clamping voltage of P6SMB68AHE3_A/I at its rated peak pulse current?
The P6SMB68AHE3_A/I clamps to a maximum of 92.0 V at its specified peak pulse current of 6.5 A under the standard 10/1000 µs waveform. This value is measured at TA = 25 °C and reflects worst-case device behavior across manufacturing lot and temperature extremes - critical for validating safe operating margins of downstream ICs and MOSFETs in the protected circuit.
Is P6SMB68AHE3_A/I qualified for automotive applications?
Yes, P6SMB68AHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and Vishay documentation. It undergoes stress testing including high-temperature operating life (HTOL), temperature cycling (TCT), and ESD per JS-001, making it suitable for under-hood and chassis-mounted automotive modules where reliability under thermal and mechanical stress is non-negotiable.
What does the "_A/I" suffix indicate in P6SMB68AHE3_A/I?
The "_A/I" suffix in P6SMB68AHE3_A/I denotes tape-and-reel packaging: "I" specifies 13-inch diameter reels containing 3200 units, while "A" identifies the revision level per Vishay's internal change control. This packaging format ensures compatibility with high-speed pick-and-place equipment and supports JIT manufacturing workflows without manual handling.
How does P6SMB68AHE3_A/I differ from bidirectional variants like P6SMB68CA?
P6SMB68AHE3_A/I is unidirectional and features polarity marking (cathode band), allowing it to conduct only during reverse overvoltage events - ideal for DC power rail protection. In contrast, P6SMB68CA is bidirectional with no polarity marking and symmetric clamping in both directions, suited for AC signal lines or differential buses where voltage polarity reverses during normal operation.
What is the maximum steady-state power dissipation for P6SMB68AHE3_A/I?
P6SMB68AHE3_A/I has a maximum steady-state power dissipation (PD) of 5.0 W at TA = 50 °C with infinite heatsink conditions. Derating applies above 50 °C at 40 mW/°C, limiting usable continuous power to ~3.0 W at 100 °C ambient - a key constraint when designing for sustained fault conditions or high-temperature enclosures.
P6SMB68AHE3_A/I 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:
- Obsolete
- 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_A/I FAQ
1.How can I place an order for P6SMB68AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB68AHE3_A/I 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_A/I reliable?
The price and inventory of P6SMB68AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB68AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB68AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB68AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB68AHE3_A/I?
P6SMB68AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB68AHE3_A/I 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_A/I?
For technical support, including P6SMB68AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB68AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB68AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB68AHE3_A/I 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_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB68AHE3_A/I?
All P6SMB68AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB68AHE3_A/I, 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_A/I part is unused and in its original packaging.
Return procedure for P6SMB68AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB68AHE3_A/I Tags
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