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Vishay General Semiconductor - Diodes Division P6KE68A-E3/54
- Part No.:
- P6KE68A-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE68A-E3/54.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:518
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Product details
Overview
P6KE68A-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a 68 V breakdown voltage (VBR = 64.6–71.4 V at IT = 1.0 mA), 92.0 V maximum clamping voltage at 6.5 A peak pulse current (10/1000 µs), and 600 W peak pulse power rating - enabling robust surge suppression in automotive power supplies and industrial sensor interfaces.
For engineers reviewing the P6KE68A-E3/54 datasheet, P6KE68A-E3/54 pinout, P6KE68A-E3/54 application, or P6KE68A-E3/54 equivalent, this device delivers verified clamping performance, DO-15 package compatibility with legacy board layouts, AEC-Q101 qualification for automotive-grade reliability, and low leakage (<1.0 µA at 58.1 V stand-off), making it suitable for high-immunity ESD and load-dump protection circuits.
Technical Context
The P6KE68A-E3/54 operates as a silicon avalanche diode with glass-passivated junction, exhibiting fast response time (<1.0 ns) and low incremental surge resistance to limit transient-induced voltage overshoot. Its unidirectional polarity uses a cathode band marking and conducts only during reverse overvoltage events while blocking forward current up to 5.0 W continuous dissipation.
Thermal design relies on RθJL = 20 °C/W (junction-to-lead), supporting operation up to TJ = +175 °C, and derating begins above TA = 25 °C per Figure 2. The device meets UL 497B recognition (QVGQ2) and complies with JESD 22-B106 soldering (275 °C, 10 s).
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 initiation window for repeatable clamping onset |
| VWM | 58.1 V maximum working voltage - sets safe DC operating margin below breakdown |
| VC @ IPPM | 92.0 V at 6.5 A (10/1000 µs) - determines worst-case voltage seen by protected IC during surge |
| PPPM | 600 W peak pulse power - supports single-event transients like ISO 7637-2 Pulse 1/2a/5a in automotive systems |
| IFSM | 100 A non-repetitive surge (8.3 ms half-sine) - enables survival of high-energy inductive switch-offs |
| TJ max. | +175 °C - allows placement near hot components without thermal derating penalties |
| Leakage ID | <1.0 µA at VWM - ensures negligible standby current drain in battery-powered applications |
Pinout & Package
Package: DO-15 (DO-204AC) molded epoxy case with matte tin-plated leads; 0.242–0.258 inch body length, 0.130–0.138 inch diameter; RoHS-compliant, commercial grade (E3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); carries forward current during fault conditions |
| Cathode (banded end) | Avalanche clamping terminal | Connected to protected line (e.g., 48 V rail); initiates conduction when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 600 W peak pulse power (10/1000 µs) | Withstands automotive load-dump surges (ISO 16750-2) without degradation |
| AEC-Q101 qualified (E3 variant is commercial; HE3 is qualified) | P6KE68A-E3/54 is commercial grade; for automotive use, P6KE68AHE3/54 must be selected |
| UL 497B recognized (QVGQ2) | Validated for telecom and industrial surge protection system compliance without additional certification overhead |
| Low clamping ratio (VC/VBR ≈ 1.36) | Minimizes voltage overshoot during transients, reducing stress on downstream MOSFETs or regulators |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting 48 V DC supply lines in ADAS ECUs against ISO 7637-2 load-dump pulses. IC Role / Device Role / Timing Role: Primary clamping element placed upstream of DC-DC converters and microcontrollers. Use Value: Limits transient voltage to ≤92.0 V, preventing latch-up or gate oxide damage in 65 V-rated power stages. |
Use Scenario: Shielding analog input pins of temperature/pressure sensors in PLC modules from field-wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Fast-acting shunt protector located at connector entry point before signal conditioning circuitry. Use Value: Sub-1 ns response captures fast-rising transients before they propagate into precision amplifiers or ADC front-ends. |
| Telecom Line Card Surge Suppression | Consumer Power Adapter Input Stage |
Use Scenario: Secondary-level protection on -48 V telecom distribution boards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Standby TVS in parallel with MOVs to handle fast, low-energy transients missed by slower bulk suppressors. Use Value: 92.0 V clamping ensures protected ASICs remain within absolute maximum ratings during combined surge events. |
Use Scenario: Input-stage overvoltage clamp in USB-C PD adapters handling variable-input AC/DC conversion. IC Role / Device Role / Timing Role: Fail-safe shunt device across bulk capacitor to prevent overvoltage failure during regulator fault conditions. Use Value: 600 W pulse rating absorbs energy from transformer leakage spikes without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | DO-214AA package; 64 V VBR; 600 W rating; lower RθJA (50 °C/W vs. 75 °C/W) | Better thermal performance in surface-mount layouts; requires PCB rework for leaded DO-15 footprint | Select SMBJ64A for new SMT designs prioritizing thermal efficiency and board space savings |
| P6KE68CA | Bidirectional version; same VBR range but symmetrical clamping in both polarities; no cathode band | Required for AC-coupled or floating signal lines where polarity reversal occurs (e.g., RS-485 bus) | Choose P6KE68CA only when bidirectional protection is mandated by signal architecture |
Compared with SMBJ64A and P6KE68CA, the P6KE68A-E3/54 offers drop-in compatibility with existing DO-15 through-hole layouts, lower cost in high-volume tape-and-reel procurement, and proven reliability in legacy automotive harness interfaces - making it optimal for production continuity and repair scenarios.
Availability
P6KE68A-E3/54 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom line card surge suppression requiring stable component supply across multi-year production cycles.
Supply support for P6KE68A-E3/54 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, power handling, and industry-standard qualification.
The P6KE series targets cost-sensitive, high-surge industrial and automotive applications where proven DO-15 form factor, 600 W pulse capability, and broad VBR selection simplify design-in and inventory management.
FAQ
What is the maximum clamping voltage of the P6KE68A-E3/54 under standard test conditions?
The P6KE68A-E3/54 has a maximum clamping voltage (VC) of 92.0 V when subjected to a 10/1000 µs waveform peak pulse current of 6.5 A. This value is measured per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during transient events - critical for ensuring downstream components like 100 V MOSFETs remain within safe operating area.
Is the P6KE68A-E3/54 suitable for automotive applications requiring AEC-Q101 qualification?
No - the P6KE68A-E3/54 carries the E3 suffix, indicating RoHS-compliant commercial grade. For AEC-Q101 qualification, the correct variant is P6KE68AHE3/54 (HE3 suffix). Using P6KE68A-E3/54 in automotive environments without formal qualification may violate functional safety requirements and void system-level certifications.
How does the P6KE68A-E3/54 differ from the bidirectional P6KE68CA in terms of electrical behavior?
The P6KE68A-E3/54 is unidirectional and blocks forward current while clamping reverse overvoltages above ~68 V; it features a cathode band. The P6KE68CA is bidirectional, clamping symmetrically in both directions with identical VBR and VC characteristics, and has no polarity marking. Their breakdown voltages match, but P6KE68CA is required for AC or polarity-agnostic signal lines.
What is the thermal resistance specification for the P6KE68A-E3/54, and how does it affect layout design?
The P6KE68A-E3/54 has RθJL = 20 °C/W (junction-to-lead) and RθJA = 75 °C/W (junction-to-ambient). Since it uses a DO-15 through-hole package, effective heat dissipation depends on copper pad area and lead length - designers should maintain ≥10 mm² copper pour per lead and minimize lead length to avoid exceeding TJ = +175 °C under sustained 5.0 W dissipation.
Can the P6KE68A-E3/54 be used as a direct replacement for older P6KE68A parts without design changes?
Yes - the P6KE68A-E3/54 maintains identical electrical specifications, DO-15 mechanical dimensions, and soldering profile (JESD 22-B106 compliant) as legacy P6KE68A variants. The E3 suffix denotes RoHS compliance and JESD 201 Class 1A whisker resistance, with no functional or layout impact on existing designs.
P6KE68A-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE68A-E3/54 FAQ
1.How can I place an order for P6KE68A-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE68A-E3/54 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 P6KE68A-E3/54 reliable?
The price and inventory of P6KE68A-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE68A-E3/54 is usually 5 days.
3.What payment methods are accepted for P6KE68A-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE68A-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE68A-E3/54?
P6KE68A-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE68A-E3/54 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 P6KE68A-E3/54?
For technical support, including P6KE68A-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE68A-E3/54 requirements.
6.How does Aetrix verify that P6KE68A-E3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE68A-E3/54 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 P6KE68A-E3/54 meets industry standards.
7.What is the process for return or replacement of P6KE68A-E3/54?
All P6KE68A-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE68A-E3/54, 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 P6KE68A-E3/54 part is unused and in its original packaging.
Return procedure for P6KE68A-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE68A-E3/54 Tags
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