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Vishay General Semiconductor - Diodes Division P4KE6.8C-E3/54
- Part No.:
- P4KE6.8C-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE6.8C-E3/54.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,276
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Product details
Overview
P4KE6.8C-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal and power lines. It features 6.8 V nominal breakdown voltage (VBR), 400 W peak pulse power (10/1000 μs), 10.5 V maximum clamping voltage at 38.1 A peak pulse current, and operates across –55 °C to +175 °C junction temperature range. It protects MOSFETs and ICs in automotive sensor interfaces against inductive switching surges.
For engineers reviewing the P4KE6.8C-E3/54 datasheet, P4KE6.8C-E3/54 pinout, P4KE6.8C-E3/54 application, or P4KE6.8C-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 mechanical compatibility, AEC-Q101 qualification status, low 0.057 %/°C VBR temperature coefficient, and 1000 μA maximum reverse leakage at 5.8 V stand-off voltage.
Technical Context
This device implements a glass-passivated silicon junction optimized for fast transient response (<1 ps typical) and low incremental surge resistance. Its bidirectional architecture enables symmetrical clamping without polarity dependency, supporting protection of AC-coupled or differential signal paths such as CAN bus receivers and RS-485 transceivers.
The P4KE6.8C-E3/54 complies with AEC-Q101 stress test requirements and meets UL 94 V-0 flammability rating via molded epoxy encapsulation. Its thermal resistance (RθJL = 66 °C/W) and 1.5 W steady-state power dissipation support reliable operation under sustained leakage conditions in industrial control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA - defines precise clamping onset threshold for overvoltage events |
| VWM | 5.8 V - maximum continuous reverse working voltage before leakage exceeds 1000 μA |
| VC @ IPPM | 10.5 V at 38.1 A - clamped voltage during 400 W transient, limiting downstream stress |
| PPPM | 400 W (10/1000 μs waveform) - peak surge energy handling capacity per IEC 61000-4-5 |
| TJ max. | +175 °C - enables deployment in under-hood automotive environments and high-temperature industrial enclosures |
| Package | DO-41 (DO-204AL) - industry-standard axial leaded package compatible with through-hole assembly and manual repair |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
DO-41 (DO-204AL) package: axial-leaded, molded epoxy body with glass-passivated chip junction; matte tin-plated leads compliant with J-STD-002 solderability; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal serves as cathode or anode depending on transient polarity - no orientation required during placement |
| Lead 1 | Current path input/output | Conducts surge current in either direction; requires ≥10 mm lead length for specified RθJA = 100 °C/W |
| Lead 2 | Current path input/output | Completes bidirectional conduction path; same electrical function as Lead 1 - interchangeable in layout |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5 %) and long-term leakage stability under thermal cycling |
| 400 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements for industrial and automotive ports |
| AEC-Q101 qualification | Validates suitability for automotive powertrain and body electronics where field failure risk must be minimized |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed systems - required for automotive cabin and industrial control cabinets |
| 0.057 %/°C VBR tempco | Minimizes clamping voltage drift across –40 °C to +125 °C ambient, critical for precision sensor front-ends |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of engine coolant temperature sensors exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between sensor output and microcontroller ADC input. Use Value: Limits transient excursions to ≤10.5 V, preventing ADC saturation and protecting internal ESD structures of automotive-grade MCUs. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers subjected to relay coil flyback. IC Role / Device Role / Timing Role: Primary surge suppression device across input terminals before optocoupler isolation stage. Use Value: Absorbs 400 W surges without degradation, maintaining channel integrity over >100,000 switching cycles in factory automation. |
| Consumer Power Adapter Interface | Telecom Line Card Surge Protection |
Use Scenario: Clamping induced transients on USB-C CC line during hot-plug events with legacy chargers. IC Role / Device Role / Timing Role: Fast-response TVS placed directly at connector to shunt ESD and contact bounce energy. Use Value: Responds in <1 ps to 8 kV HBM ESD, holding line voltage below 10.5 V to prevent USB PD controller latch-up. |
Use Scenario: Protecting RS-485 transceiver pins on telecom base station line cards from lightning-induced surges. IC Role / Device Role / Timing Role: First-line defense on differential bus lines, operating symmetrically across A/B terminals. Use Value: Maintains signal integrity by clamping common-mode transients to ≤10.5 V while preserving DC bias point for receiver thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8CA | DO-214AA package; 600 W PPPM; lower RθJA (50 °C/W); higher VC = 11.2 V | Suitable for surface-mount designs requiring higher surge margin and automated assembly | Select SMBJ6.8CA when board space is constrained and SMT reflow compatibility is mandatory. |
| 1.5KE6.8CA | DO-201AD package; 1500 W PPPM; larger footprint; VC = 11.5 V; non-AEC-Q101 | Used in high-energy industrial motor drives where 400 W is insufficient | Choose 1.5KE6.8CA only for non-automotive applications needing >1 kW surge handling. |
Compared with SMBJ6.8CA and 1.5KE6.8CA, the P4KE6.8C-E3/54 offers AEC-Q101 qualification and DO-41 through-hole compatibility at 400 W rating - making it optimal for cost-sensitive, repairable, and automotive-qualified designs where moderate surge levels prevail.
Availability
P4KE6.8C-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer power adapter protection, and telecom line card surge suppression requiring stable component supply and long-lifecycle support.
Supply support for P4KE6.8C-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 and automotive qualification.
The P4KE6.8C-E3/54 belongs to Vishay's TRANSZORB® family - engineered specifically for robust, standardized transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What does the "C" suffix indicate in P4KE6.8C-E3/54?
The "C" in P4KE6.8C-E3/54 denotes bidirectional configuration, meaning the device provides symmetrical clamping for both positive and negative transients without polarity sensitivity. Unlike unidirectional variants (e.g., P4KE6.8A), the P4KE6.8C-E3/54 has no cathode marking and functions identically regardless of terminal orientation - essential for protecting AC-coupled or differential signal paths in the P4KE6.8C-E3/54 application space.
Is P4KE6.8C-E3/54 qualified for automotive use?
Yes, P4KE6.8C-E3/54 is AEC-Q101 qualified when ordered with the HE3 suffix (e.g., P4KE6.8CHE3/54). The standard P4KE6.8C-E3/54 variant is commercial grade but shares identical electrical and thermal specifications; for automotive production, specify the HE3 version to ensure full qualification documentation and lot-level traceability required for P4KE6.8C-E3/54 deployment in vehicle systems.
What is the maximum clamping voltage of P4KE6.8C-E3/54 under surge conditions?
The P4KE6.8C-E3/54 exhibits a maximum clamping voltage (VC) of 10.5 V at its rated peak pulse current (IPPM) of 38.1 A, measured using the standardized 10/1000 μs double-exponential waveform. This value ensures downstream components - such as automotive microcontrollers or RS-485 transceivers - remain within safe operating voltage limits during transient events, directly defining the protective margin of the P4KE6.8C-E3/54 in circuit design.
How does the DO-41 package affect thermal performance of P4KE6.8C-E3/54?
The DO-41 package of P4KE6.8C-E3/54 delivers a junction-to-lead thermal resistance (RθJL) of 66 °C/W and junction-to-ambient resistance (RθJA) of 100 °C/W when leads are trimmed to 10 mm. This allows the P4KE6.8C-E3/54 to sustain 1.5 W continuous power dissipation at TL = 75 °C, supporting reliable operation in sealed enclosures or high-ambient industrial settings without forced airflow or heatsinking.
Can P4KE6.8C-E3/54 replace P4KE6.8A in existing designs?
No - P4KE6.8C-E3/54 is bidirectional while P4KE6.8A is unidirectional; substituting them without circuit review risks improper clamping during negative transients. The P4KE6.8C-E3/54 lacks a cathode band and conducts equally in both directions, whereas P4KE6.8A requires correct polarity alignment. Use P4KE6.8C-E3/54 only where bidirectional protection is explicitly intended - verify layout and system-level surge directionality before adopting the P4KE6.8C-E3/54 as a replacement.
P4KE6.8C-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5.5V
- Voltage - Breakdown (Min):
- 6.12V
- Voltage - Clamping (Max) @ Ipp:
- 10.8V
- Current - Peak Pulse (10/1000µs):
- 37A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
P4KE6.8C-E3/54 FAQ
1.How can I place an order for P4KE6.8C-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE6.8C-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 P4KE6.8C-E3/54 reliable?
The price and inventory of P4KE6.8C-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 P4KE6.8C-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE6.8C-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE6.8C-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE6.8C-E3/54?
P4KE6.8C-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE6.8C-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 P4KE6.8C-E3/54?
For technical support, including P4KE6.8C-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE6.8C-E3/54 requirements.
6.How does Aetrix verify that P4KE6.8C-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE6.8C-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 P4KE6.8C-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE6.8C-E3/54?
All P4KE6.8C-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE6.8C-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 P4KE6.8C-E3/54 part is unused and in its original packaging.
Return procedure for P4KE6.8C-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE6.8C-E3/54 Tags
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