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Vishay General Semiconductor - Diodes Division P6SMB68AHE3/52
- Part No.:
- P6SMB68AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB68AHE3/52.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB68AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 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). It delivers 600 W peak pulse power with 10/1000 μs waveform and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the P6SMB68AHE3/52 datasheet, P6SMB68AHE3/52 pinout, P6SMB68AHE3/52 application, or P6SMB68AHE3/52 equivalent, key selection criteria include clamping performance under 6.5 A surge, unidirectional polarity with cathode band marking, RoHS-compliant AEC-Q101 qualification, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a shunt-clamping device that diverts transient energy to ground when reverse voltage exceeds VWM = 58.1 V, entering avalanche breakdown at VBR = 64.6–71.4 V and limiting downstream voltage to ≤92.0 V at IPPM = 6.5 A. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1 ns).
Thermal design relies on RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), with derating above TA = 25 °C per Fig. 2. The device supports repetitive surges at 0.01% duty cycle and withstands peak forward surge current (IFSM) up to 100 A (8.3 ms half-sine) in unidirectional configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 64.6 V / 71.4 V at 1.0 mA test current - defines precise avalanche onset range for reliable overvoltage triggering |
| VWM | 58.1 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 92.0 V at 6.5 A - clamped voltage during 10/1000 μs transient, limiting stress on protected ICs |
| PPPM | 600 W - peak pulse power handling capability under standardized 10/1000 μs waveform |
| IPPM | 6.5 A - maximum non-repetitive peak pulse current the device safely clamps without failure |
| TJ max. | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMB (DO-214AA) - low-profile surface-mount outline with 0.220" × 0.130" footprint and matte tin-plated leads |
Pinout & Package
Package: SMB (DO-214AA), case code per JEDEC DO-214AA standard; dimensions 0.220" × 0.130" (5.59 mm × 3.30 mm); cathode indicated by band on body; terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground or low-side reference | Provides return path for clamped surge current; must be routed to low-impedance ground plane |
| Cathode | Current exit terminal in forward bias; marked by band; reverse-biased during clamping | Connected to protected line (e.g., CAN_H, USB_VBUS); avalanche conduction occurs here during transients |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per JESD47 |
| 600 W peak pulse power | Withstands high-energy transients such as ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 Level 4 surges |
| Glass passivated junction | Ensures stable VBR tolerance (±5%), low leakage (<1.0 μA), and long-term parameter stability |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60% RH; compatible with standard reflow profiles up to 260 °C peak |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., EFT bursts), improving protection margin |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump (ISO 7637-2 Pulse 5a) and alternator switching transients. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between power rail and chassis ground, responding within <1 ns to limit voltage to ≤92.0 V. Use Value: Prevents damage to MCU power inputs and PMICs by clamping 600 W surges while maintaining VWM = 58.1 V for normal operation. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in factory automation systems exposed to relay-induced inductive spikes. IC Role / Device Role / Timing Role: Unidirectional TVS on signal lines referenced to local ground, suppressing ±1 kV EFT bursts per IEC 61000-4-4. Use Value: Maintains signal integrity below 92.0 V clamp level while adding only 0.5 pF junction capacitance at zero bias, avoiding bandwidth degradation. |
| Telecom DC Power Input Protection | Consumer USB Port Surge Suppression |
Use Scenario: Securing 48 V PoE-powered network switches against lightning-induced surges on DC input rails. IC Role / Device Role / Timing Role: Primary TVS on main DC bus, coordinated with upstream fuses and secondary filtering to meet UL 60950-1 surge requirements. Use Value: Handles 6.5 A peak pulses with 92.0 V clamping, reducing stress on downstream DC/DC converters and enabling compact board layout. |
Use Scenario: Adding robustness to USB Type-A power delivery paths in portable monitors against hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS on VBUS line, positioned adjacent to connector to minimize inductance and maximize clamping speed. Use Value: Achieves <1 ns response with 58.1 V stand-off, ensuring safe operation during 5 V nominal charging while blocking false triggers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ68A-E3/52 | Same VBR (64.6–71.4 V), but lower PPPM = 400 W and higher VC = 110 V at 3.6 A; SMA package (smaller footprint, higher RθJA = 140 °C/W) | Limited to lower-energy transients (e.g., IEC 61000-4-2 contact discharge); unsuitable for ISO 7637-2 Pulse 5a | Select when board space is constrained and surge energy is ≤400 W; verify thermal margin due to higher junction temperature rise |
| 1.5SMC68A | Same electrical specs (VBR, VWM, VC, PPPM), but larger SMC (DO-214AB) package with 0.295" × 0.230" footprint and RθJA = 60 °C/W | Better thermal performance for high-duty-cycle environments; not suitable for ultra-thin or dense PCBs | Choose for industrial power supplies requiring enhanced thermal headroom or legacy SMC-compatible layouts |
Compared with SMAJ68A-E3/52, P6SMB68AHE3/52 offers 50% higher surge power handling and tighter clamping; versus 1.5SMC68A, it reduces board area by ~40% while maintaining full 600 W capability-critical for space-constrained automotive modules.
Availability
P6SMB68AHE3/52 is available at Aetrix Electronics and suitable for automotive control units, industrial sensor interfaces, telecom power inputs, and consumer USB power delivery systems requiring stable component supply with AEC-Q101 qualification and RoHS compliance.
Supply support for P6SMB68AHE3/52 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 optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems, designed to replace older SMB-style TVS families with improved surge robustness, tighter parametric control, and extended AEC-Q101 qualification coverage.
FAQ
What is the clamping voltage of P6SMB68AHE3/52 at its rated peak pulse current?
The P6SMB68AHE3/52 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 the Vishay datasheet 88370 and defines the upper voltage limit imposed on protected circuitry during transient events. The P6SMB68AHE3/52 maintains this clamping performance across its qualified operating temperature range.
Is P6SMB68AHE3/52 suitable for automotive applications?
Yes, P6SMB68AHE3/52 is AEC-Q101 qualified (indicated by the "HE3" suffix), making it suitable for automotive applications including engine control units, body electronics, and infotainment power rails. It meets stress tests for temperature cycling, high-temperature reverse bias, and mechanical shock per AEC-Q101 Rev D. The P6SMB68AHE3/52 also complies with RoHS and JESD201 Class 2 whisker resistance requirements.
What does the "HE3" suffix mean in P6SMB68AHE3/52?
The "HE3" suffix in P6SMB68AHE3/52 denotes RoHS-compliant construction with AEC-Q101 qualification and matte tin-plated leads meeting J-STD-002 solderability standards. It distinguishes this variant from commercial-grade "E3" parts and halogen-free "HM3" versions. The P6SMB68AHE3/52 is specifically intended for automotive and high-reliability industrial use where qualification evidence is mandatory.
How does P6SMB68AHE3/52 compare to bidirectional TVS diodes like P6SMB68CA?
P6SMB68AHE3/52 is unidirectional and features a cathode band for polarity-sensitive placement, whereas P6SMB68CA is bidirectional with no polarity marking and symmetric clamping in both directions. The P6SMB68AHE3/52 offers lower leakage (<1.0 μA at VWM) and is preferred for DC power rail protection; P6SMB68CA suits AC-coupled or differential signal lines where polarity reversal may occur.
What is the thermal resistance of P6SMB68AHE3/52, and how does it affect layout?
P6SMB68AHE3/52 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 per datasheet conditions. To maintain reliability, PCB layout must provide adequate copper area for heat dissipation-especially under repetitive surge conditions-and avoid routing high-current traces near the P6SMB68AHE3/52's anode/cathode terminals.
P6SMB68AHE3/52 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:
- 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)
P6SMB68AHE3/52 FAQ
1.How can I place an order for P6SMB68AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB68AHE3/52 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 P6SMB68AHE3/52 reliable?
The price and inventory of P6SMB68AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB68AHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB68AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB68AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB68AHE3/52?
P6SMB68AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB68AHE3/52 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 P6SMB68AHE3/52?
For technical support, including P6SMB68AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB68AHE3/52 requirements.
6.How does Aetrix verify that P6SMB68AHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB68AHE3/52 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 P6SMB68AHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB68AHE3/52?
All P6SMB68AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB68AHE3/52, 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 P6SMB68AHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB68AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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