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Taiwan Semiconductor Corporation P6KE68H
- Part No.:
- P6KE68H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE68H.pdf
- Description:
- 600W, 68V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,988
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Product details
Overview
P6KE68H from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-level overvoltage protection in DC power rails and signal lines. It features a nominal breakdown voltage of 68 V, clamps transients to ≤98.0 V at 6.4 A peak surge current, and delivers sub-nanosecond response time (<1.0 ps from 0 V to VBR). It is AEC-Q101 qualified and housed in a DO-204AC (DO-15) package for automotive and industrial power supply protection.
For engineers reviewing the P6KE68H datasheet, P6KE68H pinout, P6KE68H application, or P6KE68H equivalent, key selection criteria include its 55.1 V standoff voltage, <1 μA leakage at rated VWM, 0.104 %/°C VBR temperature coefficient, and compliance with ANSI/IEEE C62.35 surge waveforms - critical for ESD, EFT, and inductive switching immunity design.
Technical Context
The P6KE68H operates as a unidirectional avalanche diode, leveraging silicon PN-junction clamping to divert high-energy transients away from downstream circuitry. Its 10/1000 µs surge rating of 600 W and maximum clamping voltage of 98.0 V at 6.4 A define its energy-handling capability under standardized lightning/surge conditions.
With a junction temperature range of –55 °C to +175 °C and low dynamic impedance, it maintains stable clamping performance across automotive under-hood and industrial ambient environments. The device exhibits <1.0 ps response latency from zero bias to breakdown, enabling effective suppression of fast-rising ESD events before sensitive ICs are stressed.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 55.1 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 48 V or 60 V systems. |
| VBR (min/max) | 61.2 V / 74.8 V at 1 mA - Confirmed breakdown window ensures reliable turn-on without premature conduction during normal operation. |
| VC @ IPP | 98.0 V at 6.4 A - Clamping voltage under 10/1000 µs surge; determines maximum stress imposed on protected ICs or MOSFETs. |
| IR @ VWM | <1 µA - Ultra-low reverse leakage preserves efficiency in battery-powered or high-impedance sensing circuits. |
| PPK | 600 W - Peak pulse power handling per 10/1000 µs waveform; supports IEC 61000-4-5 Level 3/4 surge immunity testing. |
| TJ max | +175 °C - Enables placement near hot components (e.g., power MOSFETs, inductors) without thermal derating concerns. |
| Package | DO-204AC (DO-15) - Industry-standard axial-leaded package with tin-plated leads compliant to J-STD-002 solderability. |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with cathode band marking. Leads are pure tin-plated, RoHS-compliant, and meet JESD201 Class 2 whisker resistance. Weight ≈ 0.400 g.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / Surge return node | Connected to system ground or low-side reference; completes clamping path during transient events. |
| Cathode | Protected line connection / High-side clamp input | Connected to the line being protected (e.g., 48 V rail, CAN-H); conducts avalanche current when VAK exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS power domains. |
| 600 W 10/1000 µs surge rating | Meets IEC 61000-4-5 surge immunity requirements for industrial and transportation equipment. |
| <1.0 ps response time (0 V → VBR) | Enables suppression of nanosecond-scale ESD events before propagation into microcontrollers or transceivers. |
| <1 µA leakage at 55.1 V | Minimizes standby power loss and avoids false triggering in high-impedance monitoring circuits. |
| UL 94V-0 flammability rating | Ensures flame-retardant encapsulation integrity under fault-induced overheating conditions. |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role: Primary clamping element placed between power rail and ground, upstream of DC/DC converters and MCU power inputs. Use Value: Limits transient voltage to ≤98.0 V, preventing damage to 100 V-rated MOSFETs and 5 V LDOs downstream. |
Use Scenario: Shielding 24 V digital input modules from inductive kickback in solenoid/relay control circuits. IC Role / Device Role: Standoff protector across optocoupler input terminals or Schmitt-trigger inputs. Use Value: Absorbs up to 600 W surge energy while maintaining <1 µA leakage, preserving signal integrity and logic threshold stability. |
| LED Driver Overvoltage Clamp | RS-485 Transceiver Line Protection |
Use Scenario: Safeguarding constant-current LED drivers in streetlight systems exposed to lightning-induced surges. IC Role / Device Role: Parallel-connected TVS on output side of buck controller, clamping output overvoltage spikes. Use Value: Withstands repeated 10/1000 µs surges without degradation, extending driver lifetime in outdoor deployments. |
Use Scenario: Protecting RS-485 transceivers (e.g., THVD1550) on long cable runs in factory automation networks. IC Role / Device Role: Bidirectional-capable variant not applicable; P6KE68H used in unidirectional configuration on VCC-to-ground or common-mode line-to-ground paths. Use Value: Provides robust common-mode surge suppression with 98.0 V clamping, preventing latch-up or permanent failure of half-duplex transceivers. |
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 package; 68 V nominal, 98.0 V clamping at 6.4 A; ±5% VBR tolerance vs. P6KE68H's ±10%. | Higher precision VBR enables tighter margin design in regulated 60 V systems; identical surge rating and thermal specs. | Select SMAJ68A when tighter breakdown voltage tolerance is required for safety-critical clamping thresholds. |
| ON Semiconductor 1.5KE68A | Higher 1500 W peak power rating; larger DO-201AD package; 98.0 V clamping at 15.3 A; same VWM/VBR range. | Supports higher-energy surges but requires PCB layout change due to larger footprint and lead spacing. | Choose 1.5KE68A only when system-level surge testing exceeds 600 W requirements and board space allows DO-201AD mounting. |
Compared with SMAJ68A and 1.5KE68A, the P6KE68H offers AEC-Q101 qualification in the compact DO-15 package - making it optimal for space-constrained automotive modules where 600 W surge immunity suffices and automotive reliability certification is mandatory.
Availability
P6KE68H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC input conditioning, and LED driver overvoltage safeguarding requiring stable component supply and AEC-Q101 compliance.
Supply support for P6KE68H 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 targets cost-sensitive, high-reliability transient suppression needs in automotive power systems and industrial controls - emphasizing AEC-Q101 validation, tight thermal stability, and standardized DO-15 compatibility.
FAQ
What is the clamping voltage of P6KE68H under a 10/1000 µs surge?
The P6KE68H clamps to a maximum of 98.0 V when subjected to a 10/1000 µs surge waveform at its rated peak pulse current of 6.4 A. This value is measured per ANSI/IEEE C62.35 standards and represents the upper limit of voltage seen by downstream components during transient events - a critical parameter for ensuring safe operation of 100 V-rated FETs or 5 V regulators protected by the P6KE68H.
Is P6KE68H bidirectional or unidirectional?
P6KE68H is a unidirectional TVS diode, indicated by its single cathode band marking and specification table listing only VBR(uni-directional). It conducts avalanche current only when the cathode is positive relative to the anode. For bidirectional protection, TSC offers the P6KE68CA variant - the P6KE68H must be oriented correctly in-circuit with cathode toward the protected line and anode to ground.
Does P6KE68H meet automotive qualification standards?
Yes, P6KE68H is explicitly AEC-Q101 qualified per the manufacturer's ordering code suffix "H", as confirmed in the P6KE Series Ordering Information table. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD - validating its suitability for under-hood and chassis-mounted automotive electronics where reliability under thermal and electrical stress is mandatory.
What is the maximum steady-state power dissipation of P6KE68H at 75°C ambient?
The P6KE68H has a steady-state power dissipation rating of 5 W at TA = 75°C with 9.5 mm lead lengths, as specified in the Absolute Maximum Ratings table. This value reflects continuous DC power handling capability - distinct from its 600 W transient rating - and must be considered when designing for sustained overvoltage conditions or elevated ambient temperatures in enclosed enclosures.
How does the temperature coefficient affect P6KE68H's breakdown voltage?
The P6KE68H has a maximum VBR temperature coefficient of 0.104 %/°C, meaning its breakdown voltage increases by up to 0.071 V per °C rise from 25°C. At 125°C junction temperature, VBR may shift upward by ~10.4 V - a critical consideration when setting safety margins for systems operating across wide temperature ranges, such as automotive battery management or outdoor industrial controllers using the P6KE68H.
P6KE68H 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 55.1V
- Voltage - Breakdown (Min):
- 61.2V
- Voltage - Clamping (Max) @ Ipp:
- 98V
- Current - Peak Pulse (10/1000µs):
- 6.4A
- 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)
P6KE68H FAQ
1.How can I place an order for P6KE68H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE68H 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 P6KE68H reliable?
The price and inventory of P6KE68H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE68H is usually 5 days.
3.What payment methods are accepted for P6KE68H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE68H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE68H?
P6KE68H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE68H 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 P6KE68H?
For technical support, including P6KE68H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE68H requirements.
6.How does Aetrix verify that P6KE68H is sourced from the original manufacturer or authorized distributors?
All P6KE68H 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 P6KE68H meets industry standards.
7.What is the process for return or replacement of P6KE68H?
All P6KE68H units undergo pre-shipment inspection (PSI). If there is an issue with P6KE68H, 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 P6KE68H part is unused and in its original packaging.
Return procedure for P6KE68H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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