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Taiwan Semiconductor Corporation P6KE68CH
- Part No.:
- P6KE68CH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE68CH.pdf
- Description:
- 600W, 68V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,845
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Product details
Overview
P6KE68CH from Taiwan Semiconductor is a unidirectional 600W transient voltage suppressor (TVS) diode designed for primary-side overvoltage clamping in power supply input stages and automotive electronics. It features a nominal breakdown voltage of 68 V, maximum clamping voltage of 98.0 V at 6.4 A peak surge current, and stand-off voltage of 55.1 V - enabling robust protection of 48 V DC systems against ISO 7637-2 pulse 1/2a/5a transients. Its DO-204AC (DO-15) package supports high-reliability mounting on industrial PCBs.
For engineers reviewing the P6KE68CH datasheet, P6KE68CH pinout, P6KE68CH application, or P6KE68CH equivalent, key selection criteria include its AEC-Q101 qualification, 10/1000 µs waveform surge rating, low dynamic impedance (<1 Ω typical), sub-1 ps response time from 0 V to VBR, and <1 µA reverse leakage above 10 V - all critical for automotive ECU, battery management, and 48 V rail protection designs.
Technical Context
The P6KE68CH implements a silicon avalanche junction structure optimized for fast clamping under high-energy transients. Its unidirectional configuration provides asymmetric conduction: low forward voltage drop (~1.2 V @ 100 A) during surge events and precise reverse-biased breakdown at 61.2–74.8 V (VBR min/max) with ±5% tolerance at 1 mA test current.
Thermal performance is defined by a 175 °C maximum junction temperature and derated peak pulse power above 25 °C ambient per MIL-STD-750 Method 2074. The device meets UL 94V-0 flammability requirements and JESD201 Class 2 whisker resistance, confirming suitability for automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 61.2 V / 74.8 V at 1 mA - ensures reliable triggering before downstream IC damage in 48 V systems |
| VWM | 55.1 V - allows stable operation across full 48 V nominal range with margin against ripple-induced false triggering |
| VC @ IPP | 98.0 V at 6.4 A - limits protected circuit voltage to safe level during ISO 7637-2 Pulse 5a (10/1000 µs) |
| PPK | 600 W - sustains single-event surges up to 6.4 A × 98.0 V without degradation |
| IR @ VWM | <1 µA - prevents standby power loss in always-on automotive modules |
| TJMAX | 175 °C - enables placement near heat-generating components in engine control units |
| Package | DO-204AC (DO-15) - industry-standard through-hole footprint compatible with legacy automotive PCB layouts |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with cathode band marking. Leads are pure tin-plated, solderable per J-STD-002. Weight ≈ 0.400 g. Polarity indicated by cathode band (cathode = banded end).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (non-banded end) | Forward conduction path | Connects to system ground or low-side return; conducts during positive surge events on cathode side |
| Cathode (banded end) | Clamping node | Connects to protected line (e.g., 48 V rail); avalanches into conduction when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS power rails |
| 600 W peak pulse power (10/1000 µs) | Withstands ISO 7637-2 Pulse 5a surges without parameter shift or failure |
| Fast response time <1.0 ps | Clamps transients before sensitive logic or analog circuits experience overvoltage stress |
| Low dynamic impedance | Minimizes clamping voltage overshoot during high di/dt events like inductive load switching |
| RoHS & halogen-free | Complies with automotive ELV Directive and IEC 61249-2-21 for sustainable manufacturing |
Applications
| Automotive Power Supply Protection | Industrial 48 V DC Distribution |
|---|---|
|
Use Scenario: Protecting microcontroller power inputs in engine control units exposed to ISO 7637-2 Pulse 1 (inductive load dump) and Pulse 5a (alternator load dump). IC Role / Device Role / Timing Role: Primary clamping element placed between 48 V rail and local LDO/regulator input. Use Value: Limits voltage to ≤98.0 V during 100 V/100 ms transients, preventing latch-up or gate oxide rupture in 5 V/3.3 V regulators. |
Use Scenario: Safeguarding programmable logic controllers (PLCs) powered from centralized 48 V DC bus in factory automation systems. IC Role / Device Role / Timing Role: Front-end transient suppressor on main power entry connector. Use Value: Absorbs repetitive 600 W surges from motor drive switching noise while maintaining <1 µA leakage for low-power sleep modes. |
| Telecom Remote Radio Unit (RRU) | EV On-Board Charger (OBC) Input Stage |
|
Use Scenario: Shielding baseband processor power lines in outdoor 4G/5G RRUs subjected to lightning-induced surges via PoE or DC feed lines. IC Role / Device Role / Timing Role: First-line defense before DC-DC converters and signal conditioning ICs. Use Value: Clamps 10/1000 µs transients to 98.0 V within 1 ps, preserving integrity of RF front-end timing references. |
Use Scenario: Protecting AC/DC rectifier output and PFC stage inputs in electric vehicle onboard chargers operating from 48 V auxiliary supplies. IC Role / Device Role / Timing Role: Parallel-connected TVS across bulk capacitor terminals. Use Value: Handles 6.4 A surge currents from regenerative braking feedback without thermal runaway due to 175 °C TJMAX. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ68A | Same DO-214AC package; 68 V nominal, 98.0 V clamping, but rated for 400 W (not 600 W) | Limited to lower-energy transients (e.g., IEC 61000-4-5 Level 3); not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification and 600 W surge headroom |
| ON Semiconductor 1.5KE68A | DO-201AD package; identical 68 V/98.0 V specs but higher 1.5 kW rating; lead-free only | Requires PCB layout change; better suited for high-volume industrial power supplies than space-constrained automotive ECUs | Select when higher surge margin is needed and through-hole DO-201AD footprint is acceptable |
Compared with SMAJ68A and 1.5KE68A, the P6KE68CH uniquely combines AEC-Q101 qualification, 600 W capability in DO-15, and <1 µA leakage - making it optimal for automotive 48 V systems where reliability, footprint, and low standby loss are jointly critical.
Availability
P6KE68CH is available at Aetrix Electronics and suitable for automotive electronic control units, industrial 48 V DC distribution systems, and telecom remote radio units requiring stable component supply with long-term lifecycle assurance.
Supply support for P6KE68CH 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, and rectifiers for automotive, industrial, and consumer markets.
The P6KE series targets high-reliability transient suppression in harsh environments, with design focus on AEC-Q101 compliance, robust surge handling, and compatibility with legacy through-hole assembly processes.
FAQ
What is the clamping voltage of P6KE68CH at its rated peak surge current?
The P6KE68CH has a maximum clamping voltage (VC) of 98.0 V at 6.4 A peak pulse current (IPP) under 10/1000 µs waveform conditions. This value is measured per ANSI/IEEE C62.35 and guarantees that protected circuits will not experience voltages exceeding 98.0 V during standardized surge events - a critical parameter for safeguarding 48 V system ICs with 100 V absolute maximum ratings.
Is P6KE68CH suitable for bidirectional transient protection?
No, P6KE68CH is a unidirectional TVS diode and is not rated for bidirectional operation. Its electrical specifications - including breakdown voltage, clamping behavior, and polarity marking - apply only in reverse-biased mode. For bidirectional protection, Taiwan Semiconductor offers the P6KE68C variant (with 'C' suffix), which features symmetrical characteristics in both directions and uses a center-tap or dual-diode configuration.
Does P6KE68CH meet automotive qualification standards?
Yes, P6KE68CH is explicitly AEC-Q101 qualified, as confirmed in the ordering code suffix 'H' and product documentation. This qualification covers stress tests including high-temperature reverse bias, temperature cycling, and humidity bias, validating its use in automotive powertrain, chassis, and body electronics where reliability under thermal and vibration stress is mandatory.
What is the maximum steady-state power dissipation for P6KE68CH?
The P6KE68CH has a steady-state power dissipation (PD) of 5 W at 75 °C ambient temperature with 9.5 mm lead lengths. This rating applies only to continuous DC or low-frequency operation - not transient suppression. In normal use, the device remains near-zero power until a surge event triggers avalanche conduction, making it ideal for always-on automotive modules with strict quiescent power budgets.
How does the P6KE68CH respond to fast-rising transients?
The P6KE68CH responds in less than 1.0 picosecond from 0 V to VBR under unidirectional surge conditions, per manufacturer characterization. This ultrafast turn-on ensures clamping occurs before transient energy couples into downstream circuitry - especially critical for protecting high-speed interfaces and precision analog sensors in automotive ADAS systems where nanosecond-scale overvoltage can cause latent damage.
P6KE68CH 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):
- 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)
P6KE68CH FAQ
1.How can I place an order for P6KE68CH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE68CH 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 P6KE68CH reliable?
The price and inventory of P6KE68CH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE68CH is usually 5 days.
3.What payment methods are accepted for P6KE68CH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE68CH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE68CH?
P6KE68CH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE68CH 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 P6KE68CH?
For technical support, including P6KE68CH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE68CH requirements.
6.How does Aetrix verify that P6KE68CH is sourced from the original manufacturer or authorized distributors?
All P6KE68CH 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 P6KE68CH meets industry standards.
7.What is the process for return or replacement of P6KE68CH?
All P6KE68CH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE68CH, 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 P6KE68CH part is unused and in its original packaging.
Return procedure for P6KE68CH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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