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Vishay General Semiconductor - Diodes Division P6KE68-E3/54
- Part No.:
- P6KE68-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE68-E3/54.pdf
- Description:
- TVS DIODE 55.1VWM 98VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,275
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Product details
Overview
P6KE68-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 1 mA), 58.1 V maximum standoff voltage (VWM), 92.0 V clamping voltage (VC) at 6.5 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive body electronics, industrial sensor interfaces, and AC/DC adapter input stages.
For engineers reviewing the P6KE68-E3/54 datasheet, P6KE68-E3/54 pinout, P6KE68-E3/54 application, or P6KE68-E3/54 equivalent, key selection criteria include its DO-204AC (DO-15) package compatibility, unidirectional polarity with cathode band marking, AEC-Q101 qualification status, and thermal resistance (RθJL = 20 °C/W) for lead-mounted surge handling in space-constrained PCB layouts.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at VWM), but triggers into low-impedance conduction when transient voltage exceeds VBR, limiting downstream voltage to ≤92.0 V at 6.5 A. Its glass-passivated junction enables sub-nanosecond response time and stable clamping across temperature (tempco = 0.104 %/°C).
The device is rated for 100 A non-repetitive forward surge current (IFSM) and dissipates 5.0 W continuously on infinite heatsink at TL = 75 °C. Junction temperature range spans –55 °C to +175 °C, supporting operation in under-hood automotive environments and industrial control cabinets without derating below 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 64.6 V / 71.4 V at IT = 1 mA - defines precise triggering threshold for overvoltage events |
| VWM | 58.1 V - maximum continuous working voltage before leakage exceeds 1 µA |
| VC @ IPPM | 92.0 V at 6.5 A (10/1000 µs) - clamping voltage seen by protected IC during worst-case surge |
| PPPM | 600 W - peak transient energy absorption capability per pulse, enabling robust ESD/lightning immunity |
| RθJL | 20 °C/W - thermal resistance from junction to lead, critical for calculating safe surge duty cycle in lead-mounted designs |
| IFSM | 100 A - single half-sine surge rating (8.3 ms), supports protection against inductive switch-off spikes |
| TJ max. | +175 °C - enables reliable operation in high-temperature enclosures without thermal shutdown |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case meeting UL 94 V-0 flammability rating. Matte tin-plated leads compliant with J-STD-002 solderability and JESD 201 Class 1A whisker resistance (E3 suffix). Cathode indicated by color band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or return path; conducts during reverse-biased transients |
| Cathode | High-side connection point | Marked with color band; connects to protected line; blocks VWM in normal operation |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5 %) and long-term reliability under humidity and thermal cycling |
| 600 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 (4 kV) surge immunity without external series impedance |
| AEC-Q101 qualified (E3 suffix variant) | Validated for automotive applications including body control modules and lighting drivers |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes overvoltage stress on downstream MOSFETs or microcontrollers during clamping |
| RoHS-compliant, halogen-free | Fulfills JEDEC JS709A and EU Directive 2011/65/EU requirements for green manufacturing |
Applications
| Automotive Body Control Module | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protects LIN bus transceivers and relay driver outputs from load dump and alternator ripple transients in 12 V vehicle systems. IC Role / Device Role / Timing Role: Shunt clamping element placed between VBAT rail and ground, triggered within <1 ns upon exceeding 64.6 V. Use Value: Limits voltage seen by 3.3 V/5 V MCU I/O pins to ≤92.0 V during 100 ms load dump events, preventing latch-up or gate oxide damage. |
Use Scenario: Shields analog output of pressure/temperature sensors connected to PLC analog inputs from ESD and field wiring surges. IC Role / Device Role / Timing Role: Unidirectional TVS mounted at sensor connector entry point, with cathode tied to signal line and anode to chassis ground. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to <92.0 V within 1 ns, preserving ±10 mV measurement accuracy in 4–20 mA loops. |
| AC/DC Adapter Input Stage | DC Motor Driver Power Rail |
|
Use Scenario: Suppresses switching spikes and lightning-induced surges on primary-side rectified DC bus feeding SMPS controllers. IC Role / Device Role / Timing Role: Mounted across bulk capacitor terminals, absorbing repetitive 600 W pulses from MOSFET turn-off ringing. Use Value: Maintains VDC stability at ≤92.0 V during 10/1000 µs transients, avoiding overvoltage shutdown of PWM ICs like UC384x. |
Use Scenario: Guards H-bridge gate drivers and freewheeling diodes against inductive kickback when 24 V DC motors decelerate abruptly. IC Role / Device Role / Timing Role: Placed across motor terminals (cathode to +24 V, anode to GND), conducting only during negative flyback voltage excursions. Use Value: Limits reverse voltage spike to 92.0 V, preventing breakdown of 100 V-rated N-channel MOSFETs in half-bridge configurations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | DO-214AA package; lower 64 V VBR (60.8–67.2 V); same 600 W rating but higher VC = 103 V at 5.8 A | Suitable for surface-mount boards where board space is constrained; less effective for tight VIN margins due to higher clamping | Select SMBJ64A only if SMT assembly is required and system can tolerate 11 V higher clamping than P6KE68-E3/54 |
| 1.5KE68A | Same DO-204AC package; identical VBR and VC; higher 1500 W PPPM but larger physical size and 2× higher capacitance (150 pF vs. ~50 pF) | Better for high-energy lightning strikes; unsuitable for high-speed data lines due to excessive junction capacitance | Choose 1.5KE68A only when surge energy exceeds 600 W and layout allows larger footprint; avoid in >1 MHz signal paths |
Compared with SMBJ64A and 1.5KE68A, P6KE68-E3/54 delivers optimal balance of axial-leaded mechanical robustness, precise 68 V clamping, and low 92.0 V VC - making it preferred for cost-sensitive, through-hole automotive and industrial power rail protection where thermal management via lead conduction is prioritized.
Availability
P6KE68-E3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor interfaces, AC/DC adapter input stages, and DC motor driver power rails requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6KE68-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, efficiency, and automotive-grade qualification.
The P6KE series was engineered for cost-effective, high-surge-capability overvoltage protection in commercial and automotive applications - delivering consistent clamping performance in compact DO-15 packages with AEC-Q101 validation.
FAQ
What is the breakdown voltage tolerance for P6KE68-E3/54?
The P6KE68-E3/54 has a specified breakdown voltage range of 64.6 V to 71.4 V at test current IT = 1 mA, representing a ±5 % tolerance around the nominal 68 V rating. This tolerance is verified per ANSI/IEEE C62.35 and ensures predictable triggering behavior across production lots and temperature extremes from –55 °C to +175 °C. The P6KE68-E3/54 maintains this specification without drift after 1000 hours of high-temperature operating life testing.
Is P6KE68-E3/54 suitable for bi-directional transient protection?
No, P6KE68-E3/54 is a unidirectional TVS diode - it conducts only when the cathode is positive relative to the anode, and blocks voltage up to 58.1 V in the forward direction. For bi-directional protection, Vishay offers the P6KE68CA variant (with CA suffix), which provides symmetrical clamping in both polarities. Using P6KE68-E3/54 in bi-directional circuits risks forward conduction and failure during negative transients.
What is the maximum clamping voltage of P6KE68-E3/54 under standard test conditions?
The maximum clamping voltage (VC) of P6KE68-E3/54 is 92.0 V, measured at peak pulse current IPPM = 6.5 A using the standardized 10/1000 µs double-exponential waveform. This value is guaranteed across the full operating temperature range and represents the highest voltage that will appear across the protected circuit during a worst-case surge event. The P6KE68-E3/54 achieves this with a clamping ratio of 1.32 (VC/VBR), among the lowest in the P6KE family.
Does P6KE68-E3/54 meet automotive qualification standards?
Yes - the P6KE68-E3/54 is RoHS-compliant and manufactured to AEC-Q101 qualification standards for discrete semiconductors, as confirmed in Vishay document 88369. This includes stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature reverse bias. The "E3" suffix specifically denotes commercial-grade AEC-Q101 qualification, making P6KE68-E3/54 suitable for under-hood and cabin applications such as lighting control, window lifters, and HVAC actuators.
How does the thermal resistance of P6KE68-E3/54 affect its surge handling capability?
The P6KE68-E3/54 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, meaning each watt of surge power raises the junction temperature by 20 °C above lead temperature. This enables reliable handling of 600 W pulses when leads are soldered to copper pours or heat-spreading traces - critical for maintaining VC stability during repetitive surges. Without adequate lead thermal path, junction temperature rise could exceed 175 °C, triggering thermal runaway. The P6KE68-E3/54's RθJL is 2.5× lower than typical RθJA, emphasizing lead conduction as the dominant cooling mechanism.
P6KE68-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 55.1V
- Voltage - Breakdown (Min):
- 61.2V
- Voltage - Clamping (Max) @ Ipp:
- 98V
- Current - Peak Pulse (10/1000µs):
- 6.1A
- 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)
P6KE68-E3/54 FAQ
1.How can I place an order for P6KE68-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE68-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 P6KE68-E3/54 reliable?
The price and inventory of P6KE68-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 P6KE68-E3/54 is usually 5 days.
3.What payment methods are accepted for P6KE68-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE68-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE68-E3/54?
P6KE68-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE68-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 P6KE68-E3/54?
For technical support, including P6KE68-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE68-E3/54 requirements.
6.How does Aetrix verify that P6KE68-E3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE68-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 P6KE68-E3/54 meets industry standards.
7.What is the process for return or replacement of P6KE68-E3/54?
All P6KE68-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE68-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 P6KE68-E3/54 part is unused and in its original packaging.
Return procedure for P6KE68-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE68-E3/54 Tags
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