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Taiwan Semiconductor Corporation P6KE6.8CA
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- Part No.:
- P6KE6.8CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE6.8CA.pdf
- Description:
- TVS 600W 6.8V DO-15
- Quantity:
- Payment:
- Shipping:
Inventory:6,611
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Product details
Overview
P6KE6.8CA from Taiwan Semiconductor is a bidirectional 600W transient voltage suppressor (TVS) diode designed for clamping high-energy ESD and surge transients across power and signal lines. It features a nominal breakdown voltage of 6.8V, maximum clamping voltage of 10.8V at 58A peak pulse current, and stand-off voltage of 5.5V - enabling robust protection of 5V logic interfaces, USB ports, and automotive sensor inputs.
For engineers reviewing the P6KE6.8CA datasheet, P6KE6.8CA pinout, P6KE6.8CA application, or P6KE6.8CA equivalent, key selection criteria include its bidirectional DO-15 package, 10.8V clamping under 58A 10/1000μs surge, sub-1μA leakage above 10V, AEC-Q101 qualification (H-suffix variants), and compatibility with lighting ballasts, industrial I/O modules, and CAN bus front-end protection circuits.
Technical Context
The P6KE6.8CA implements a silicon avalanche diode structure optimized for fast transient response (<5ns rise time) and low dynamic impedance to minimize voltage overshoot during EFT or lightning-induced surges. Its bidirectional configuration allows symmetrical clamping in AC-coupled or floating systems without polarity constraints.
Rated for 600W non-repetitive peak pulse power per 10/1000μs waveform and operating across –55°C to +175°C junction temperature, it supports high-reliability applications where thermal derating and long-term stability under repeated transients are critical - including automotive body control modules and industrial PLC analog input protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000μs) | 600W - sustains single high-energy surges up to 58A without failure |
| Breakdown Voltage VBR (min/max) | 6.12V / 7.48V - ensures reliable conduction onset before protected circuit damage |
| Stand-Off Voltage VWM | 5.5V - blocks normal 5V rail operation while remaining fully inactive below threshold |
| Maximum Clamping Voltage VC | 10.8V @ 58A - limits downstream voltage stress to safe levels for 5V-tolerant ICs |
| Reverse Leakage ID @ VWM | <1000μA - negligible standby current impact on low-power sensor nodes |
| Junction Temperature Range | –55°C to +175°C - validated for under-hood automotive and industrial ambient extremes |
| Package | DO-204AC (DO-15) - industry-standard through-hole footprint with 0.4g mass and UL 94V-0 molding |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded plastic case with cathode band marking for unidirectional variants; P6KE6.8CA is bidirectional and marked with part-specific code (e.g., "6.8C" or "6.8CA") - no polarity designation required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal serves as input/output - enables placement in AC paths or floating grounds without orientation check |
| Lead 1 / Lead 2 | Current path terminals | Standard tinned copper leads compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (H-suffix) | Validated for automotive electronics per stress test requirements - suitable for BCM, ADAS sensors, and infotainment power rails |
| Clamping ratio (VC/VBR) | 1.77 (10.8V / 6.12V) - among lowest in 600W DO-15 TVS family, minimizing overvoltage margin risk |
| Response time | <5.0ns - faster than typical MOVs or polymer-based protectors, preserving signal integrity in high-speed interfaces |
| UL recognition | File #E-326243 - meets safety standards for end-equipment certification in North America |
| Halogen-free construction | Complies with IEC 61249-2-21 - supports RoHS-compliant manufacturing and environmental compliance programs |
Applications
| Automotive Lighting Control | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting LED driver ICs and microcontrollers from load-dump and inductive kickback in headlight modules. IC Role / Device Role / Timing Role: Bidirectional clamping device placed across 12V supply rail and ground near connector entry point. Use Value: Limits transient voltage to ≤10.8V during 600W surges, preventing latch-up or gate oxide rupture in 12V-rated logic devices. |
Use Scenario: Safeguarding 4–20mA current-loop transmitters and analog-to-digital converters in factory automation equipment. IC Role / Device Role / Timing Role: Parallel-connected TVS across signal and return lines to shunt EFT bursts before reaching precision op-amps. Use Value: Sub-1μA leakage at 5.5V ensures no measurable error in μA-level loop current accuracy. |
| USB 2.0 Port ESD Protection | Smart Meter Communication Interface |
Use Scenario: Secondary-level ESD protection for USB D+/D− lines after primary polymer TVS, meeting IEC 61000-4-2 Level 4. IC Role / Device Role / Timing Role: Low-capacitance (typ. <50pF) bidirectional clamp placed directly at USB connector pins. Use Value: 10.8V clamping prevents damage to 3.3V USB PHY transceivers during ±8kV contact discharge events. |
Use Scenario: Surge suppression on RS-485 or PLC communication lines in residential smart meters exposed to lightning-induced grid transients. IC Role / Device Role / Timing Role: Primary line-to-line and line-to-ground protector mounted at meter's external interface terminal block. Use Value: 600W rating handles 10/1000μs surges up to 58A, exceeding IEC 61000-4-5 Line-Fast Transient 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 6.8V nominal, 600W rating, but SMB surface-mount package (3.5×3.5mm) | Requires PCB re-layout; unsuitable for through-hole legacy designs or high-vibration environments | Select when board space is constrained and automated SMT assembly is available |
| 1.5KE6.8CA | Same DO-15 package and 6.8V rating, but 1500W peak power (1.5kW) and higher clamping voltage (12.7V) | Higher energy handling but looser voltage margin - may exceed 3.3V IC absolute max ratings | Select only when system-level surge tests require >600W capability and clamping margin permits 12.7V |
Compared with SMBJ6.8CA and 1.5KE6.8CA, the P6KE6.8CA offers optimal balance of proven DO-15 reliability, tight 10.8V clamping for 5V systems, and AEC-Q101 availability - making it preferred for cost-sensitive automotive and industrial through-hole designs where 600W surge immunity suffices.
Availability
P6KE6.8CA is available at Aetrix Electronics and suitable for automotive lighting control, industrial sensor interfaces, USB port protection, and smart meter communication requiring stable component supply and long-lifecycle support.
Supply support for P6KE6.8CA 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs - serving automotive, industrial, and consumer markets since 1979.
The P6KE series was developed to deliver AEC-Q101-qualified, high-reliability TVS protection in standard DO-15 packaging for cost-sensitive yet demanding applications including automotive body electronics and industrial fieldbus interfaces.
FAQ
What does the 'CA' suffix indicate in P6KE6.8CA?
The 'CA' suffix in P6KE6.8CA denotes a bidirectional configuration - meaning the device provides symmetrical clamping in both polarities, unlike unidirectional 'A' or base 'P6KE6.8' variants. This makes P6KE6.8CA ideal for AC signal lines, floating grounds, or differential buses where polarity cannot be guaranteed. The P6KE6.8CA achieves this via a back-to-back diode structure within a single DO-15 package.
Is P6KE6.8CA AEC-Q101 qualified?
P6KE6.8CA itself is not AEC-Q101 qualified; only variants with the 'H' suffix (e.g., P6KE6.8CAH) carry that qualification. The base P6KE6.8CA meets all electrical and mechanical specifications of the series but lacks the extended stress testing required for automotive under-hood use. For AEC-Q101 compliance, specify P6KE6.8CAH - which shares identical electrical parameters and DO-15 packaging with P6KE6.8CA.
What is the maximum clamping voltage of P6KE6.8CA and at what current?
The maximum clamping voltage of P6KE6.8CA is 10.8V, measured at a peak pulse current (IPP) of 58A using the standardized 10/1000μs double-exponential surge waveform. This value is guaranteed across the full operating temperature range and represents the upper limit of voltage seen by downstream circuitry during worst-case transient events - critical for ensuring compatibility with 5V logic families' absolute maximum ratings.
Can P6KE6.8CA replace P6KE6.8A in a design?
No - P6KE6.8CA and P6KE6.8A are not interchangeable without verification. P6KE6.8A is unidirectional with cathode marking and 10.5V clamping at 60A, while P6KE6.8CA is bidirectional with symmetric characteristics and 10.8V clamping at 58A. Substituting one for the other risks incorrect polarity installation or inadequate AC-path protection. Always match suffix functionality: 'A' for DC-rail protection, 'CA' for AC/differential or polarity-agnostic use.
What is the standoff voltage (VWM) and why does it matter for P6KE6.8CA?
The standoff voltage (VWM) of P6KE6.8CA is 5.5V - the maximum continuous reverse voltage the device can block without significant leakage. This parameter ensures the P6KE6.8CA remains fully inactive during normal 5V system operation, drawing less than 1000μA leakage current. Exceeding VWM risks premature conduction and power loss; staying below it guarantees reliable protection activation only during actual transients - essential for battery-powered or low-quiescent-current designs.
P6KE6.8CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- P6KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5.8V
- Voltage - Breakdown (Min):
- 6.46V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 60A
- 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 FAQ
1.How can I place an order for P6KE6.8CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE6.8CA 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 reliable?
The price and inventory of P6KE6.8CA 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 is usually 5 days.
3.What payment methods are accepted for P6KE6.8CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE6.8CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE6.8CA?
P6KE6.8CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE6.8CA 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?
For technical support, including P6KE6.8CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE6.8CA requirements.
6.How does Aetrix verify that P6KE6.8CA is sourced from the original manufacturer or authorized distributors?
All P6KE6.8CA 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 meets industry standards.
7.What is the process for return or replacement of P6KE6.8CA?
All P6KE6.8CA units undergo pre-shipment inspection (PSI). If there is an issue with P6KE6.8CA, 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 part is unused and in its original packaging.
Return procedure for P6KE6.8CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE6.8CA Tags
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