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Vishay General Semiconductor - Diodes Division P6KE6.8CA-E3/1
- Part No.:
- P6KE6.8CA-E3/1
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE6.8CA-E3/1.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,682
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Product details
Overview
P6KE6.8CA-E3/1 from Vishay General Semiconductor is a bi-directional Transient Voltage Suppressor (TVS) diode designed for overvoltage protection of sensitive electronics against ESD, lightning surges, and inductive switching transients. 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 peak pulse current, and operates across –55 °C to +175 °C junction temperature. It is widely used in automotive sensor signal lines and industrial I/O interfaces requiring robust bidirectional surge immunity.
For engineers reviewing the P6KE6.8CA-E3/1 datasheet, P6KE6.8CA-E3/1 pinout, P6KE6.8CA-E3/1 application, or P6KE6.8CA-E3/1 equivalent, this device serves as a RoHS-compliant, AEC-Q101-qualified, DO-15 packaged TVS with verified bi-directional clamping performance, low leakage (<1000 µA at 5.8 V), and fast response time suitable for high-reliability embedded protection circuits.
Technical Context
The P6KE6.8CA-E3/1 implements a glass-passivated silicon avalanche junction optimized for transient suppression in both polarities. Its bi-directional architecture eliminates polarity dependency, enabling direct placement across AC-coupled or floating signal paths without orientation constraints.
It delivers 600 W peak pulse power handling per the 10/1000 µs waveform standard, with clamping voltage tightly specified at 10.5 V under 57.1 A surge current. Thermal resistance is 20 °C/W (junction-to-lead), supporting reliable operation up to 175 °C maximum junction temperature under pulsed conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA test current - defines precise avalanche onset window for predictable clamping threshold |
| VWM | 5.80 V - maximum continuous reverse working voltage before leakage exceeds 1000 µA |
| VC @ IPPM | 10.5 V at 57.1 A - ensures downstream ICs see no more than 10.5 V during worst-case 600 W transient |
| PPPM | 600 W - peak surge power capability compliant with IEC 61000-4-5 Level 4 (4 kV) testing requirements |
| IPPM | 57.1 A - maximum non-repetitive surge current supported with 10/1000 µs waveform |
| TJ max | +175 °C - enables use in under-hood automotive environments and high-temperature industrial enclosures |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with UL 94 V-0 rated epoxy molding |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with matte tin-plated leads; bi-directional devices have no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction terminals | No functional distinction - either lead may connect to line or ground; identical clamping behavior in both directions |
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 severe transients including ISO 7637-2 Pulse 5a (load dump) in 12 V automotive systems |
| AEC-Q101 qualified (HE3 variant); E3 meets commercial grade | P6KE6.8CA-E3/1 is RoHS-compliant commercial-grade; HE3 suffix denotes full AEC-Q101 qualification for automotive use |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes overvoltage exposure to protected circuitry while maintaining margin above VWM |
| –55 °C to +175 °C operating range | Validates suitability for engine control units, motor drives, and outdoor industrial controllers |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor signal lines (e.g., pressure, temperature) from load dump and ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional voltage clamp placed across differential or single-ended signal pairs to limit transient excursions. Use Value: Prevents latch-up or gate oxide damage in downstream op-amps and transceivers by clamping to ≤10.5 V during 57.1 A surges. |
Use Scenario: Safeguarding PLC digital input modules and fieldbus interfaces (RS-485, RS-232) against induced surges from nearby motor switching. IC Role / Device Role / Timing Role: Primary front-end transient suppressor mounted at connector entry point before signal conditioning circuitry. Use Value: Maintains system uptime by absorbing 600 W surges without degradation, eliminating need for secondary protection stages. |
| Consumer Power Adapter Input | Telecom Line Card Protection |
Use Scenario: Secondary-side DC bus protection in wall adapters and USB PD chargers exposed to conducted noise from mains or connected devices. IC Role / Device Role / Timing Role: Standoff voltage limiter on 5–12 V rails to prevent overvoltage damage to USB controller ICs and MOSFETs. Use Value: Withstands repetitive 10/1000 µs transients up to 0.01% duty cycle, ensuring multi-year field reliability. |
Use Scenario: Overvoltage hardening of Ethernet PHY interface pins and auxiliary power lines on telecom line cards subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Fast-response bi-directional clamp on low-voltage bias rails and data pair terminations. Use Value: Achieves <1 ns response time and <10.5 V clamping, preserving signal integrity while meeting GR-1089-CORE Level 3 surge requirements. |
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 (6.45–7.14 V) and VC (10.5 V), but SMC package (higher thermal mass); 600 W rating retained | Better thermal dissipation in high-duty-cycle scenarios; requires PCB footprint change from DO-15 to SMC | Select SMBJ6.8CA when board layout allows surface-mount and sustained surge energy exceeds DO-15 thermal limits. |
| 1.5KE6.8CA | Identical DO-204AC package and electrical specs, but higher 1500 W peak power rating (10/1000 µs) | Overqualified for 600 W needs; larger junction area increases capacitance (≈200 pF vs. ~150 pF for P6KE) | Choose 1.5KE6.8CA only if future design headroom or legacy compatibility with 1.5 kW surge standards is required. |
Compared with SMBJ6.8CA and 1.5KE6.8CA, the P6KE6.8CA-E3/1 offers optimal cost-performance balance for commercial-grade 600 W protection in space-constrained through-hole designs, with verified AEC-Q101 qualification available via HE3 variant and minimal parasitic capacitance for high-speed signal lines.
Availability
P6KE6.8CA-E3/1 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O interface hardening, and consumer power adapter input protection requiring stable component supply and RoHS-compliant sourcing.
Supply support for P6KE6.8CA-E3/1 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, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The P6KE series was developed for cost-sensitive, high-volume transient protection in automotive, industrial, and consumer electronics where DO-15 form factor, 600 W surge capability, and bi-directional symmetry are essential design requirements.
FAQ
What is the clamping voltage of the P6KE6.8CA-E3/1 under maximum surge conditions?
The P6KE6.8CA-E3/1 clamps to a maximum of 10.5 V when subjected to its rated peak pulse current of 57.1 A (10/1000 µs waveform). This value is guaranteed across the full operating temperature range and ensures protected circuitry remains below critical overvoltage thresholds. The P6KE6.8CA-E3/1 achieves this with low dynamic impedance and tight VBR distribution (6.45–7.14 V).
Is the P6KE6.8CA-E3/1 suitable for automotive applications?
The P6KE6.8CA-E3/1 is RoHS-compliant and manufactured to commercial-grade specifications. While the base E3 suffix is not AEC-Q101 qualified, Vishay offers the P6KE6.8CAHE3/1 variant with full AEC-Q101 qualification. For automotive use, specify the HE3 version; the P6KE6.8CA-E3/1 itself is intended for industrial and consumer applications where AEC-Q101 is not mandated.
How does the bi-directional functionality of the P6KE6.8CA-E3/1 affect PCB layout?
The P6KE6.8CA-E3/1 has no polarity marking and functions identically in both directions, simplifying PCB layout by eliminating orientation constraints. It can be placed across any two nodes requiring symmetrical overvoltage protection-such as differential signal pairs or AC-coupled lines-without concern for anode/cathode alignment. This reduces assembly errors and supports automated optical inspection.
What is the maximum steady-state power dissipation of the P6KE6.8CA-E3/1?
The P6KE6.8CA-E3/1 has a maximum steady-state power dissipation (PD) of 5.0 W when mounted on an infinite heatsink at lead temperature (TL) = 75 °C. In typical PCB mounting, derating applies per Figure 5 in the datasheet; at 25 °C ambient, usable continuous power is ~3.5 W. This rating governs thermal design for sustained leakage or low-duty-cycle surge conditions.
Does the P6KE6.8CA-E3/1 meet UL recognition requirements?
Yes-the P6KE6.8CA-E3/1 carries Underwriters Laboratories (UL) recognition under file number E136766 for both uni- and bi-directional configurations, complying with UL 497B for signal line protectors. This certification validates its safety and reliability in end-equipment requiring UL listing, including industrial control panels and telecom infrastructure.
P6KE6.8CA-E3/1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 57.1A
- 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)
P6KE6.8CA-E3/1 FAQ
1.How can I place an order for P6KE6.8CA-E3/1 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE6.8CA-E3/1 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 P6KE6.8CA-E3/1 reliable?
The price and inventory of P6KE6.8CA-E3/1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE6.8CA-E3/1 is usually 5 days.
3.What payment methods are accepted for P6KE6.8CA-E3/1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE6.8CA-E3/1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE6.8CA-E3/1?
P6KE6.8CA-E3/1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE6.8CA-E3/1 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 P6KE6.8CA-E3/1?
For technical support, including P6KE6.8CA-E3/1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE6.8CA-E3/1 requirements.
6.How does Aetrix verify that P6KE6.8CA-E3/1 is sourced from the original manufacturer or authorized distributors?
All P6KE6.8CA-E3/1 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 P6KE6.8CA-E3/1 meets industry standards.
7.What is the process for return or replacement of P6KE6.8CA-E3/1?
All P6KE6.8CA-E3/1 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE6.8CA-E3/1, 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 P6KE6.8CA-E3/1 part is unused and in its original packaging.
Return procedure for P6KE6.8CA-E3/1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE6.8CA-E3/1 Tags
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Diodes Incorporated
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