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Taiwan Semiconductor Corporation P6KE6.8CH
- Part No.:
- P6KE6.8CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE6.8CH.pdf
- Description:
- 600W, 6.8V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,684
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Product details
Overview
P6KE6.8CH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-side overvoltage clamping in DC power rails and signal lines. It features a nominal breakdown voltage of 6.8V, clamps transients to ≤10.8V at 58A peak surge current, and delivers sub-1ps response time from 0V to VBR. It is AEC-Q101 qualified and used in automotive lighting control modules to protect microcontrollers against load-dump and ESD events.
For engineers reviewing the P6KE6.8CH datasheet, P6KE6.8CH pinout, P6KE6.8CH application, or P6KE6.8CH equivalent, key selection criteria include its 5.5V stand-off voltage, 10.8V maximum clamping voltage at 58A, DO-204AC (DO-15) package with cathode band polarity marking, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The P6KE6.8CH operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its 6.12–7.48V breakdown range (tested at 10mA). Its low dynamic impedance ensures stable clamping during 10/1000μs surges up to 600W, with junction temperature rated from –55°C to +175°C.
It exhibits <1μA reverse leakage above 10V, a 0.057%/°C VBR temperature coefficient, and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements. Polarity is marked by a cathode band; no bidirectional operation is supported.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.5 V - Maximum continuous reverse operating voltage before leakage exceeds 1000 μA |
| VBR (min/max) | 6.12 V / 7.48 V - Breakdown occurs within this range at 10 mA test current; defines turn-on threshold |
| VC @ IPP | 10.8 V - Clamps 58 A surge current to ≤10.8 V, limiting downstream IC stress |
| PPK | 600 W - Peak pulse power handling per 10/1000μs waveform, derated above 25°C ambient |
| TJ max | +175 °C - Maximum junction temperature; enables use in under-hood automotive environments |
| Package | DO-204AC (DO-15) - Axial-leaded, 0.400 g body with tin-plated leads compliant to J-STD-002 |
| AEC-Q101 | Qualified - Validated for automotive applications including temperature cycling, HTRB, and ESD testing |
Pinout & Package
DO-204AC (DO-15) axial package with cathode band marking on one end. Leads are pure tin-plated and solderable per J-STD-002. Polarity is unidirectional: anode (unmarked end), cathode (banded end).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked lead) | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in clamping configuration |
| Cathode (banded lead) | Reverse-biased clamping terminal | Connected to protected line (e.g., 5V rail); conducts when transient exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive under-hood use including HTOL, TC, and ESD robustness per JESD47 |
| 600W 10/1000μs surge rating | Withstands ISO 7637-2 Pulse 1/2a/5a transients without degradation in 12V systems |
| Sub-1ps response time (0V → VBR) | Clamps ESD (IEC 61000-4-2) and EFT (IEC 61000-4-4) events before sensitive logic is disturbed |
| Low dynamic impedance | Maintains tight clamping window (VC – VBR = ~3.3 V) across full surge current range |
| UL 94V-0 molding compound | Meets flame-retardancy requirements for enclosed automotive and industrial enclosures |
Applications
| Automotive Lighting Control | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting MCU GPIO and CAN transceiver power rails in LED headlamp drivers subjected to load-dump transients. IC Role / Device Role: Primary clamping device placed directly at connector entry point before LDO input. Use Value: Limits voltage to ≤10.8 V during 35 V/100 ms load-dump events, preventing brownout or latch-up of 5V logic. |
Use Scenario: Safeguarding 24V digital input channels in programmable logic controllers exposed to inductive kickback from solenoid switching. IC Role / Device Role: Front-end TVS on field-side terminals, coordinated with series current-limiting resistor. Use Value: Absorbs 600W surges from 24V relay coils without failure, maintaining channel integrity per IEC 61000-4-5 Level 3. |
| USB Power Delivery Interface | Smart Meter Voltage Monitoring |
|
Use Scenario: Clamping VBUS line against ESD and hot-swap transients in USB-C PD sink applications. IC Role / Device Role: Unidirectional TVS between VBUS and GND, upstream of buck converter input. Use Value: Withstands ±15 kV contact ESD (IEC 61000-4-2) while adding <1 pF junction capacitance-no signal integrity impact. |
Use Scenario: Protecting precision voltage divider and ADC inputs in revenue-grade electricity meters subject to lightning-induced surges. IC Role / Device Role: Secondary protection after gas discharge tube (GDT), absorbing residual energy below 100V. Use Value: Clamps induced transients to <11 V, preserving 16-bit ADC accuracy and preventing reference rail disturbance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8A | 400W rating, SMA package (surface-mount), 11.2V clamping at 38.9A | Lacks AEC-Q101 qualification; not validated for automotive temperature cycling or humidity testing | Select for space-constrained PCBs where 600W surge margin is non-critical and qualification is not required. |
| 1.5KE6.8C | 600W rating, DO-201AD package, bidirectional configuration (±6.8V), 10.5V clamping | Supports AC-coupled or floating signal lines; unsuitable for DC rail clamping requiring polarity control | Choose only when protecting symmetric interfaces (e.g., RS-485) where bidirectional clamping is mandatory. |
Compared with SMAJ6.8A and 1.5KE6.8C, the P6KE6.8CH provides higher surge margin in an AEC-Q101-qualified axial package-critical for automotive power supply inputs where mechanical mounting stability and qualification traceability are mandatory.
Availability
P6KE6.8CH is available at Aetrix Electronics and suitable for automotive lighting control, industrial PLC I/O protection, USB PD interface hardening, and smart meter voltage monitoring requiring stable component supply across extended temperature and qualification-critical programs.
Supply support for P6KE6.8CH 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 analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, serving automotive, industrial, and consumer markets since 1979.
The P6KE series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for high-reliability DC rail protection in automotive power distribution and industrial control systems.
FAQ
What is the clamping voltage of P6KE6.8CH at its rated surge current?
The P6KE6.8CH clamps to a maximum of 10.8 V when subjected to its peak pulse current of 58 A (10/1000μs waveform). This value is measured per ANSI/IEEE C62.35 and guarantees predictable overvoltage limiting for downstream 5V logic circuits. The P6KE6.8CH maintains this clamping performance across its full operating temperature range of –55°C to +175°C.
Is P6KE6.8CH unidirectional or bidirectional?
The P6KE6.8CH is a unidirectional TVS diode, indicated by the "H" suffix and confirmed by its single cathode band marking and electrical specifications referencing only VBR(uni-directional). It conducts only during reverse overvoltage events and must be oriented with the banded end toward the protected line. Bidirectional variants (e.g., P6KE6.8CA) are separate part numbers.
Does P6KE6.8CH meet automotive qualification standards?
Yes, the "H" suffix in P6KE6.8CH explicitly denotes AEC-Q101 qualification per the manufacturer's ordering information. This includes stress testing for high-temperature reverse bias, temperature cycling, and ESD robustness-validating suitability for under-hood automotive applications such as body control modules and lighting drivers.
What is the maximum steady-state power dissipation for P6KE6.8CH?
The P6KE6.8CH has a steady-state power dissipation (PD) of 5 W at TA = 75°C with 9.5 mm lead lengths mounted on 5 × 5 mm copper pads. This rating applies only to continuous DC or low-frequency conditions-not surge events-and is derated linearly to zero at +175°C junction temperature.
How does the junction capacitance of P6KE6.8CH affect high-speed signal lines?
The P6KE6.8CH exhibits typical junction capacitance of <100 pF at 0 V and <5 pF at its 5.5 V stand-off voltage (per Fig.5), making it suitable for DC power rails and low-speed signals (e.g., GPIO, CAN power, sensor supplies). It is not recommended for >10 MHz data lines due to potential signal distortion; for those, smaller-package TVS devices with sub-1 pF CJ should be selected instead of the P6KE6.8CH.
P6KE6.8CH 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):
- 5.5V
- Voltage - Breakdown (Min):
- 6.12V
- Voltage - Clamping (Max) @ Ipp:
- 10.8V
- Current - Peak Pulse (10/1000µs):
- 58A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE6.8CH FAQ
1.How can I place an order for P6KE6.8CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE6.8CH 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 P6KE6.8CH reliable?
The price and inventory of P6KE6.8CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE6.8CH is usually 5 days.
3.What payment methods are accepted for P6KE6.8CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE6.8CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE6.8CH?
P6KE6.8CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE6.8CH 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 P6KE6.8CH?
For technical support, including P6KE6.8CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE6.8CH requirements.
6.How does Aetrix verify that P6KE6.8CH is sourced from the original manufacturer or authorized distributors?
All P6KE6.8CH 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 P6KE6.8CH meets industry standards.
7.What is the process for return or replacement of P6KE6.8CH?
All P6KE6.8CH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE6.8CH, 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 P6KE6.8CH part is unused and in its original packaging.
Return procedure for P6KE6.8CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE6.8CH Tags
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