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Vishay General Semiconductor - Diodes Division P4KE6.8CA-E3/54
- Part No.:
- P4KE6.8CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE6.8CA-E3/54.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,155
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Product details
Overview
P4KE6.8CA-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 a 6.8 V breakdown voltage (VBR min = 6.45 V), 5.8 V stand-off voltage (VWM), 10.5 V maximum clamping voltage at 38.1 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial systems.
For engineers reviewing the P4KE6.8CA-E3/54 datasheet, P4KE6.8CA-E3/54 pinout, P4KE6.8CA-E3/54 application, or P4KE6.8CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 mechanical compatibility, AEC-Q101 qualification status, low clamping ratio (VC/VBR ≈ 1.55), and thermal resistance (RθJL = 66 °C/W) for transient energy dissipation in space-constrained PCB layouts.
Technical Context
This device operates as a voltage-clamping protection element in bidirectional configurations, responding to both positive and negative transients without polarity dependence. Its glass-passivated junction enables fast response time (<1 ns), low incremental surge resistance, and stable breakdown characteristics across temperature.
The P4KE6.8CA-E3/54 complies with AEC-Q101 for automotive-grade reliability and supports repetitive surge duty cycles up to 0.01 % with 10/1000 µs waveform. It exhibits a temperature coefficient of +0.057 %/°C for VBR, ensuring predictable voltage drift over its -55 °C to +175 °C operating junction range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA test current - defines precise clamping onset threshold for bidirectional 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 to safe levels |
| PPPM | 400 W - peak pulse power handling per 10/1000 µs waveform, enabling robust ESD and load-dump suppression |
| RθJL | 66 °C/W - thermal resistance from junction to lead, critical for estimating temperature rise under repeated surges |
| TJ max | +175 °C - maximum junction temperature, supporting operation in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive applications including engine control units and body electronics |
Pinout & Package
Package: DO-41 (DO-204AL), molded epoxy case with matte tin-plated leads; RoHS-compliant, UL 94 V-0 rated; lead length 9.5 mm minimum; body diameter 2.0–2.7 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional terminal pair | No polarity marking; identical electrical behavior in both directions - simplifies layout and eliminates orientation errors |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable VBR tolerance (±5 %), low leakage, and long-term reliability under thermal cycling |
| 400 W peak pulse power (10/1000 µs) | Supports ISO 7637-2 Load Dump Pulse 5a (up to 110 V, 100 ms) when combined with series impedance |
| AEC-Q101 qualification | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock per JESD22 standards |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes overvoltage exposure to protected ICs - critical for 5 V logic and microcontroller I/O pins |
| Solderable per J-STD-002/JESD 22-B102 | Compatible with standard reflow and wave soldering processes; withstands 275 °C for 10 s dip |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LIN bus transceivers and MCU power rails against load dump and jump-start transients in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between VCC and GND, absorbing energy before it reaches sensitive analog front-ends. Use Value: Limits peak rail voltage to ≤10.5 V during 38.1 A surge, preventing latch-up or permanent damage to 5 V-rated MCUs and CAN/LIN PHYs. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and RS-485 transceivers in PLC I/O modules exposed to field wiring surges. IC Role / Device Role / Timing Role: Parallel-connected TVS across differential signal pairs or supply rails to shunt induced common-mode transients. Use Value: Clamps fast-rising EFT bursts (IEC 61000-4-4) within <1 ns, maintaining signal integrity while dissipating 400 W peak energy without degradation. |
| Consumer Device USB Port Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Secondary-level protection on USB VBUS lines in set-top boxes and smart displays subjected to hot-plug and ESD events. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 5.8 V) placed after primary polymer PTC, clamping overshoot above 6.45 V. Use Value: Maintains 5 V system compatibility while suppressing ±15 kV contact ESD (IEC 61000-4-2) with sub-10.5 V clamping voltage. |
Use Scenario: Front-end protection of ADSL/VDSL line drivers against lightning-induced surges on twisted-pair telecom lines. IC Role / Device Role / Timing Role: Bidirectional suppressor bridging tip/ring lines to ground, handling asymmetric transients up to 400 W. Use Value: Survives repeated 10/700 µs telecom surges (ITU-T K.21) with no parameter shift due to glass-passivated junction stability. |
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; higher IPPM (64.5 A); same VBR and VC; lower RθJA (50 °C/W) | Better suited for high-volume automated assembly and higher-power surge scenarios requiring surface-mount footprint | Select SMBJ6.8CA when board space allows SMD placement and thermal management via copper pour is available |
| 1.5KE6.8CA | Higher PPPM (1500 W); larger DO-201AD package; same VBR/VC specs; slower response due to higher junction capacitance | Used where single-event surge energy exceeds 400 W, e.g., AC mains input stages or heavy industrial motor drives | Choose 1.5KE6.8CA only when surge threat level demands >1 kW peak power handling and through-hole mounting is acceptable |
Compared with SMBJ6.8CA and 1.5KE6.8CA, the P4KE6.8CA-E3/54 offers optimal balance of compact DO-41 through-hole form factor, AEC-Q101 qualification, and 400 W capability - making it preferred for cost-sensitive, space-constrained automotive and industrial control boards where manual or selective soldering is used.
Availability
P4KE6.8CA-E3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and consumer power interface designs requiring stable component supply, RoHS compliance, and AEC-Q101 validation.
Supply support for P4KE6.8CA-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 performance.
The P4KE6.8CA-E3/54 belongs to Vishay's TRANSZORB® family of TVS diodes, engineered specifically for robust transient suppression in harsh environments including automotive, industrial, and telecom infrastructure.
FAQ
What is the breakdown voltage tolerance for P4KE6.8CA-E3/54?
The P4KE6.8CA-E3/54 has a specified breakdown voltage range of 6.45 V to 7.14 V at 10 mA test current, corresponding to a ±5 % tolerance around the nominal 6.8 V rating. This tight VBR distribution ensures consistent clamping behavior across production lots and supports reliable design margining in 5 V system protection schemes.
Is P4KE6.8CA-E3/54 suitable for automotive applications?
Yes, the P4KE6.8CA-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its -55 °C to +175 °C operating junction temperature range, glass-passivated junction, and validation across temperature cycling, humidity bias, and mechanical shock make it appropriate for engine control units, body electronics, and infotainment power rails.
How does the bidirectional configuration of P4KE6.8CA-E3/54 affect circuit layout?
The P4KE6.8CA-E3/54 has no polarity marking and functions identically in both directions, eliminating orientation constraints during placement. This simplifies PCB layout, reduces assembly errors, and enables symmetric placement across differential lines or ungrounded power domains - unlike unidirectional variants that require cathode alignment.
What is the maximum clamping voltage of P4KE6.8CA-E3/54 under surge conditions?
The P4KE6.8CA-E3/54 clamps to a maximum of 10.5 V at its rated peak pulse current of 38.1 A (10/1000 µs waveform). This low VC ensures protected downstream components - such as 5 V microcontrollers or RS-485 transceivers - remain within absolute maximum ratings during transient events.
Does P4KE6.8CA-E3/54 meet RoHS and lead-free requirements?
Yes, the "E3" suffix in P4KE6.8CA-E3/54 indicates full RoHS compliance and lead-free construction. The matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards, and the device passes JESD 201 Class 1A whisker testing, confirming suitability for lead-free reflow and wave soldering processes.
P4KE6.8CA-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:
- Active
- 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):
- 38.1A
- 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)
P4KE6.8CA-E3/54 FAQ
1.How can I place an order for P4KE6.8CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE6.8CA-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 P4KE6.8CA-E3/54 reliable?
The price and inventory of P4KE6.8CA-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 P4KE6.8CA-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE6.8CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE6.8CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE6.8CA-E3/54?
P4KE6.8CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE6.8CA-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 P4KE6.8CA-E3/54?
For technical support, including P4KE6.8CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE6.8CA-E3/54 requirements.
6.How does Aetrix verify that P4KE6.8CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE6.8CA-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 P4KE6.8CA-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE6.8CA-E3/54?
All P4KE6.8CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE6.8CA-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 P4KE6.8CA-E3/54 part is unused and in its original packaging.
Return procedure for P4KE6.8CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE6.8CA-E3/54 Tags
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