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Vishay General Semiconductor - Diodes Division P6KE6.8C-E3/54
- Part No.:
- P6KE6.8C-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE6.8C-E3/54.pdf
- Description:
- TVS DIODE 5.5VWM 10.8VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,414
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Product details
Overview
P6KE6.8C-E3/54 from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode designed for overvoltage protection of sensitive electronics in power and signal lines. It features a 6.8 V nominal breakdown voltage (VBR), 600 W peak pulse power rating (10/1000 µs), clamping voltage of 10.5 V at 57.1 A, and operates across –55 °C to +175 °C junction temperature. It is used in automotive sensor interfaces and industrial I/O protection where fast response to ESD and inductive switching transients is critical.
For engineers reviewing the P6KE6.8C-E3/54 datasheet, P6KE6.8C-E3/54 pinout, P6KE6.8C-E3/54 application, or P6KE6.8C-E3/54 equivalent, this page delivers verified electrical parameters, DO-204AC package details, bi-directional clamping behavior, thermal resistance data, and RoHS-compliant sourcing context - all aligned with Vishay Document #88369 (Rev. 18-Sep-12).
Technical Context
The P6KE6.8C-E3/54 is a glass-passivated, bi-directional TVS diode with symmetrical avalanche breakdown in both polarities. Its 6.8 V breakdown is specified at 10 mA test current, with stand-off voltage VWM = 5.80 V and maximum reverse leakage < 1000 µA at that voltage.
It delivers 57.1 A peak pulse current (IPPM) under 10/1000 µs waveform, clamping to 10.5 V - enabling robust protection of 5 V logic rails and analog front-ends. Thermal resistance is 20 °C/W junction-to-lead and 75 °C/W junction-to-ambient, supporting reliable operation without heatsinking up to 5.0 W continuous dissipation at TL = 75 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at IT = 10 mA - defines guaranteed conduction onset window for bi-directional surge clamping |
| VWM | 5.80 V - maximum continuous reverse voltage before significant leakage; sets safe operating margin below 6 V systems |
| VC @ IPPM | 10.5 V at 57.1 A - clamped voltage during worst-case 600 W transient; ensures downstream ICs see ≤10.5 V stress |
| PPPM | 600 W (10/1000 µs) - standardized surge energy handling capacity; validated per REA definition and Fig. 3 waveform |
| IPPM | 57.1 A - peak current supported before clamping exceeds 10.5 V; determines minimum series impedance needed |
| TJ max. | +175 °C - enables use in under-hood automotive and high-temperature industrial environments without derating |
| RθJL | 20 °C/W - low thermal resistance supports pulsed power dissipation without lead overheating during repetitive surges |
Pinout & Package
Package: DO-204AC (DO-15), molded epoxy case meeting UL 94 V-0; matte tin-plated leads solderable per J-STD-002; no polarity marking (bi-directional device).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | No functional distinction between terminals; either lead connects to protected line, other to ground or reference plane |
| Case | Non-conductive epoxy body | Provides mechanical protection and electrical isolation; no thermal or electrical connection to silicon die |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress |
| 600 W peak pulse power (10/1000 µs) | Supports protection against IEC 61000-4-5 Level 4 (4 kV) surges when paired with appropriate series impedance |
| AEC-Q101 qualified (HE3 variant); E3 is commercial grade | P6KE6.8C-E3/54 is RoHS-compliant commercial version; HE3 suffix denotes automotive-qualified variant with class 2 whisker resistance |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes let-through voltage during transients - critical for safeguarding 3.3 V and 5 V logic interfaces |
| Fast response time (< 1 ns) | Clamps before system-level ESD or lightning-induced transients propagate into IC inputs |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive kickback in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed between signal line and chassis ground, absorbing transients before they reach the transceiver input stage. Use Value: Clamps to 10.5 V while sustaining 57.1 A pulses - prevents latch-up or gate oxide damage in 5 V tolerant transceivers during ISO 7637-2 Pulse 5a events. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise on factory floors. IC Role / Device Role / Timing Role: Standoff protector on 24 V DC input channels, shunting surge energy away from optocoupler or Schmitt trigger inputs. Use Value: Withstand 600 W surges without degradation, maintaining VWM = 5.80 V to avoid false triggering during normal 24 V operation with ripple. |
| Consumer Power Adapter Output | Telecom Line Interface |
|
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters for USB-C PD and legacy 5 V/9 V chargers subject to output short-circuit recovery spikes. IC Role / Device Role / Timing Role: Fast-acting clamp across output capacitor terminals, limiting post-regulator overshoot during dynamic load transitions. Use Value: 10.5 V clamping voltage ensures connected devices remain within absolute maximum ratings even during 100 ms overload recovery events. |
Use Scenario: Primary protection on telephone line interface circuits (e.g., SLIC, codec inputs) exposed to lightning-induced longitudinal surges per GR-1089-CORE. IC Role / Device Role / Timing Role: First-stage bi-directional suppressor on tip/ring lines, coordinated with gas discharge tube (GDT) upstream for staged protection. Use Value: Symmetrical 6.8 V breakdown allows identical protection on both conductors; low VC preserves signal integrity for voice-band analog signals. |
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 | Same VBR (6.4–7.14 V), but SMC package (DO-214AB); 600 W rating, lower RθJA (50 °C/W vs. 75 °C/W) | Better thermal performance in high-density layouts; requires larger PCB footprint than DO-15 | Select SMBJ6.8CA when board space permits and higher sustained pulse repetition is required |
| 1.5KE6.8C | Same DO-204AC package and VBR, but 1500 W rating (10/1000 µs); higher IPPM (166 A) and VC (11.5 V) | Higher energy handling for severe industrial environments; slightly higher clamping voltage reduces margin for 5 V ICs | Choose 1.5KE6.8C only if system-level testing confirms 11.5 V clamping is acceptable for protected circuitry |
Compared with SMBJ6.8CA and 1.5KE6.8C, the P6KE6.8C-E3/54 offers optimal balance of compact DO-15 form factor, 10.5 V clamping headroom for 5 V systems, and proven field reliability in cost-sensitive automotive and industrial designs - making it preferred where layout space and voltage margin are constrained.
Availability
P6KE6.8C-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer power adapter outputs, and telecom line interfaces requiring stable component supply and RoHS-compliant sourcing.
Supply support for P6KE6.8C-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6KE series was engineered for cost-effective, high-surge-capability transient protection in space-constrained commercial and automotive applications - prioritizing fast response, stable clamping, and manufacturability in standard DO-15 packaging.
FAQ
What is the key difference between P6KE6.8C-E3/54 and P6KE6.8A-E3/54?
The "C" suffix in P6KE6.8C-E3/54 denotes bi-directional configuration, meaning it clamps symmetrically for both positive and negative transients - essential for AC-coupled or floating signal lines. In contrast, the "A" suffix indicates uni-directional operation with cathode marking; P6KE6.8A-E3/54 conducts only in reverse bias and requires correct polarity placement. Both share identical VBR, VC, and PPPM, but P6KE6.8C-E3/54 has no band marking and must be used where polarity independence is required.
Does P6KE6.8C-E3/54 meet AEC-Q101 qualification?
No - P6KE6.8C-E3/54 carries the "E3" suffix, indicating RoHS-compliant commercial-grade construction. The AEC-Q101 qualified version is designated P6KE6.8CHE3/54 (with "HE3" suffix), which undergoes additional stress testing including temperature cycling, humidity bias, and accelerated life validation per AEC-Q101 Rev D. For automotive under-hood or safety-critical applications, P6KE6.8CHE3/54 must be specified instead of P6KE6.8C-E3/54.
What is the maximum clamping voltage of P6KE6.8C-E3/54 and at what current is it measured?
The maximum clamping voltage (VC) of P6KE6.8C-E3/54 is 10.5 V, measured at peak pulse current (IPPM) of 57.1 A using the standardized 10/1000 µs double-exponential waveform per REA definition. This value is guaranteed across the full operating temperature range and represents the upper limit of voltage imposed on protected circuitry during worst-case surge events - critical for verifying compatibility with 5 V logic absolute maximum ratings.
Can P6KE6.8C-E3/54 be used in place of a Zener diode for voltage regulation?
No - P6KE6.8C-E3/54 is not intended for steady-state voltage regulation. It is optimized for transient suppression only: its VBR tolerance (±5%) and high dynamic impedance outside surge conditions make it unsuitable for precision biasing or reference applications. Unlike Zener diodes rated for continuous power dissipation, P6KE6.8C-E3/54 has only 5.0 W DC power rating and is designed for millisecond-scale pulses. For regulation, use dedicated Zener diodes such as BZX84-C6V8 or MMSZ4684.
What does the "/54" in P6KE6.8C-E3/54 indicate?
The "/54" suffix in P6KE6.8C-E3/54 specifies the preferred package code per Vishay's ordering system - denoting 13-inch diameter paper tape and reel packaging containing 4000 units. This format enables automated pick-and-place assembly. The base part number P6KE6.8C-E3 remains functionally identical across packaging variants; "/54" solely identifies the reel configuration and quantity, not electrical or thermal performance.
P6KE6.8C-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:
- -
- 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):
- 55.6A
- 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)
P6KE6.8C-E3/54 FAQ
1.How can I place an order for P6KE6.8C-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE6.8C-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 P6KE6.8C-E3/54 reliable?
The price and inventory of P6KE6.8C-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 P6KE6.8C-E3/54 is usually 5 days.
3.What payment methods are accepted for P6KE6.8C-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE6.8C-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE6.8C-E3/54?
P6KE6.8C-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE6.8C-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 P6KE6.8C-E3/54?
For technical support, including P6KE6.8C-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE6.8C-E3/54 requirements.
6.How does Aetrix verify that P6KE6.8C-E3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE6.8C-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 P6KE6.8C-E3/54 meets industry standards.
7.What is the process for return or replacement of P6KE6.8C-E3/54?
All P6KE6.8C-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE6.8C-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 P6KE6.8C-E3/54 part is unused and in its original packaging.
Return procedure for P6KE6.8C-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE6.8C-E3/54 Tags
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