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Taiwan Semiconductor Corporation P6KE68C
- Part No.:
- P6KE68C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE68C.pdf
- Description:
- 600W, 68V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,664
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Product details
Overview
P6KE68C 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 68 V, maximum clamping voltage of 98 V at 6.4 A peak surge current, 55.1 V stand-off voltage, and low dynamic impedance for fast transient suppression in automotive and industrial electronics.
For engineers reviewing the P6KE68C datasheet, P6KE68C pinout, P6KE68C application, or P6KE68C equivalent, this device is selected for robust ESD and lightning surge protection where precise voltage thresholding, sub-1 ns response time, and AEC-Q101 qualification (in H-suffix variants) are required.
Technical Context
The P6KE68C operates as a silicon avalanche diode with unidirectional polarity, triggered when reverse voltage exceeds its 61.2–74.8 V breakdown range at 1 mA test current. Its clamping action limits transient energy to ≤98 V under 10/1000 µs waveform surges up to 600 W, with junction temperature rated from –55 °C to +175 °C.
It uses a DO-204AC (DO-15) axial package with cathode band marking, pure tin-plated leads compliant with J-STD-002, and meets UL 94V-0 flammability and IEC 61249-2-21 halogen-free standards. Reverse leakage remains below 1 µA at 55.1 V stand-off voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 61.2 V / 74.8 V - defines reliable conduction onset window at 1 mA; ensures consistent clamping start across temperature and unit variance |
| VWM | 55.1 V - maximum continuous reverse operating voltage; sets safe DC rail margin before leakage rises significantly |
| VC @ IPP | 98 V @ 6.4 A - peak clamped voltage during 10/1000 µs surge; determines protected circuit's maximum transient stress level |
| PPK | 600 W - non-repetitive surge power rating; defines single-event energy-handling capability without failure |
| IR @ VWM | <1 µA - ultra-low reverse leakage at rated stand-off; minimizes standby power loss and signal distortion |
| TJ max | +175 °C - maximum junction temperature; enables operation in high-ambient environments like engine compartments |
| Response time | <1.0 ps - time from 0 V to VBR; guarantees suppression before nanosecond-scale ESD events damage downstream ICs |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded case with cathode band marking. Leads are pure tin-plated and solderable per J-STD-002; weight ≈ 0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | DC ground reference terminal | Connected to system ground or low-side return path; completes clamping loop during reverse transient |
| Cathode | Protected line input terminal | Connected to line being protected (e.g., 48 V supply rail); avalanche conduction occurs when cathode-to-anode voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Handles 10/1000 µs transients up to 6.4 A without degradation-sufficient for ISO 7637-2 Pulse 1/2a/5a in 12 V/24 V automotive systems |
| Low dynamic impedance | Enables tight clamping (98 V max) near VBR, reducing voltage overshoot on sensitive 60 V-rated MOSFETs or CAN transceivers |
| AEC-Q101 qualified option | H-suffix variants (e.g., P6KE68CH) meet stress testing for automotive under-hood applications including temperature cycling and humidity bias |
| UL 94V-0 flammability | Epoxy molding compound self-extinguishes within 10 s after flame removal-critical for safety-critical power supplies and lighting ballasts |
| Halogen-free construction | Complies with IEC 61249-2-21; eliminates brominated flame retardants for RoHS-compliant end-of-life recycling |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Suppressing load dump spikes (up to 120 V) on 24 V battery-fed ECUs in commercial vehicles. IC Role / Device Role / Timing Role: Primary clamping element placed between battery feed and DC-DC converter input. Use Value: Limits transient voltage to ≤98 V, preventing overvoltage failure of 100 V-rated input capacitors and controller ICs. | Use Scenario: Protecting 24 V digital input channels of programmable logic controllers against field-wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Front-end TVS on each isolated input channel, upstream of optocoupler or Schmitt trigger. Use Value: Sub-1 ps response captures fast ESD events before they couple into isolation barriers or logic gates. |
| LED Driver Overvoltage Clamp | Telecom DC Feed Protection |
Use Scenario: Safeguarding constant-current LED drivers in streetlight systems exposed to lightning-induced surges on AC mains-derived 48 V DC bus. IC Role / Device Role / Timing Role: Unidirectional shunt clamp across driver output terminals. Use Value: Clamps 600 W surges to 98 V, preserving LED string integrity and avoiding thermal runaway in driver FETs. | Use Scenario: Protecting PoE-powered devices (e.g., IP cameras) from surges entering via 48 V DC feed lines. IC Role / Device Role / Timing Role: Secondary-level TVS on powered device side, downstream of midspan injector. Use Value: Withstands repeated 10/1000 µs surges up to 6.4 A while maintaining <1 µA leakage at 55.1 V operating voltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ68A | Same DO-214AC (SMA) package; 68 V nominal, 98 V clamping at 6.4 A; 400 W rating vs. P6KE68C's 600 W | Lower surge rating suits lower-energy applications; SMA package offers surface-mount compatibility vs. P6KE68C's through-hole DO-15 | Select SMAJ68A for space-constrained PCBs where 400 W surge margin suffices and reflow assembly is preferred. |
| ON Semiconductor 1.5KE68A | Higher 1500 W rating; same 68 V nominal, 100 V clamping at 15 A; DO-201AD (DO-27) package; 1.5 kW vs. P6KE68C's 600 W | Designed for higher-energy transients (e.g., AC mains surges); larger package requires more board area and different mounting | Choose 1.5KE68A when protecting AC-input stages or legacy designs requiring proven 1.5 kW surge immunity. |
Compared with SMAJ68A and 1.5KE68A, the P6KE68C delivers optimal balance of 600 W surge handling, DO-15 through-hole reliability, and cost-effective unidirectional clamping for 24–48 V DC systems-making it ideal for automotive body control modules and industrial sensor interfaces where mechanical robustness and thermal derating stability are prioritized.
Availability
P6KE68C is available at Aetrix Electronics and suitable for automotive power rail protection, industrial PLC input conditioning, LED driver overvoltage clamping, and telecom DC feed protection requiring stable component supply and long-term lifecycle support.
Supply support for P6KE68C 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 global automotive, industrial, and consumer markets since 1979.
The P6KE series belongs to TSC's transient voltage suppressor product line, engineered specifically for high-reliability DC line protection in harsh environments-including under-hood automotive, factory automation, and outdoor lighting-where AEC-Q101 qualification, wide temperature operation, and repeatable clamping performance are mandatory.
FAQ
What is the polarity configuration of the P6KE68C?
The P6KE68C is a unidirectional TVS diode, configured with cathode-marked polarity. It conducts only when reverse-biased above its breakdown voltage (61.2–74.8 V), making it suitable for DC rail clamping where forward conduction must be blocked. This differs from bidirectional variants like P6KE68CA, which protect AC or differential signals.
Does the P6KE68C meet AEC-Q101 qualification?
The base P6KE68C is not AEC-Q101 qualified; however, the P6KE68CH variant-identical in electrical specs but with "H" suffix-is explicitly qualified per AEC-Q101 for automotive use. Always verify the full part number suffix when selecting for automotive applications, as qualification applies only to H-suffix versions per TSC's ordering documentation.
What is the maximum clamping voltage of the P6KE68C under surge conditions?
The P6KE68C has a maximum clamping voltage (VC) of 98 V at 6.4 A peak pulse current (IPP) under the standard 10/1000 µs waveform. This value is guaranteed across temperature and unit variation, and defines the upper voltage limit imposed on protected circuits during transient events.
How does the P6KE68C compare to the P6KE68A variant?
The P6KE68A has tighter breakdown tolerance (64.6–71.4 V vs. P6KE68C's 61.2–74.8 V), lower clamping voltage (92 V vs. 98 V), and same 55.1 V stand-off voltage. Both share identical package and surge rating, but P6KE68A offers improved precision for applications requiring stricter voltage threshold control, such as regulated 68 V auxiliary supplies.
Can the P6KE68C be used in bidirectional signal protection?
No-the P6KE68C is unidirectional and unsuitable for bidirectional signal lines like RS-485 or USB data pairs. For such applications, use the bidirectional P6KE68CA variant, which provides symmetrical clamping in both directions and is explicitly designated for bipolar use per TSC's datasheet notes.
P6KE68C 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:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE68C FAQ
1.How can I place an order for P6KE68C through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE68C 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 P6KE68C reliable?
The price and inventory of P6KE68C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE68C is usually 5 days.
3.What payment methods are accepted for P6KE68C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE68C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE68C?
P6KE68C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE68C 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 P6KE68C?
For technical support, including P6KE68C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE68C requirements.
6.How does Aetrix verify that P6KE68C is sourced from the original manufacturer or authorized distributors?
All P6KE68C 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 P6KE68C meets industry standards.
7.What is the process for return or replacement of P6KE68C?
All P6KE68C units undergo pre-shipment inspection (PSI). If there is an issue with P6KE68C, 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 P6KE68C part is unused and in its original packaging.
Return procedure for P6KE68C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE68C Tags
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