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Taiwan Semiconductor Corporation P6KE68AH
- Part No.:
- P6KE68AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE68AH.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,757
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Product details
Overview
P6KE68AH 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 ≤92.0 V at 6.8 A peak surge current, and delivers <1 μA reverse leakage at 58.1 V standoff voltage - enabling robust ESD and lightning surge protection in automotive body electronics and industrial control I/O modules.
For engineers reviewing the P6KE68AH datasheet, P6KE68AH pinout, P6KE68AH application, or P6KE68AH equivalent, key selection criteria include its AEC-Q101 qualification, DO-15 package compatibility with high-density PCB layouts, 10/1000 µs surge rating, and precise clamping performance under repetitive transient stress in 12 V–48 V systems.
Technical Context
The P6KE68AH operates as a silicon avalanche diode with unidirectional polarity, triggered when reverse voltage exceeds its minimum breakdown threshold of 64.6 V. Its low dynamic impedance ensures rapid energy diversion during fast-rising transients, while its junction temperature rating of –55°C to +175°C supports operation in under-hood automotive environments.
Designed for single-pulse and limited repetitive surge events, it complies with ANSI/IEEE C62.35 waveform standards and exhibits a temperature coefficient of VBR of 0.104 %/°C - enabling predictable voltage drift across operating temperature ranges without external compensation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 68 V - defines rated clamping level for 12 V–48 V DC system protection |
| Breakdown Voltage (VBR) | 64.6–71.4 V @ 1 mA - ensures reliable turn-on before downstream IC damage thresholds |
| Standoff Voltage (VWM) | 58.1 V - maximum continuous reverse voltage without significant leakage |
| Peak Pulse Power (PPK) | 600 W @ 10/1000 µs - sustains automotive load-dump and ISO 7637-2 Pulse 5a events |
| Clamping Voltage (VC) | 92.0 V @ 6.8 A - limits voltage seen by protected circuit during full-rated surge |
| Reverse Leakage (ID) | <1 µA @ 58.1 V - avoids quiescent power loss in battery-powered systems |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with 0.400 g mass and UL 94V-0 molding |
Pinout & Package
DO-204AC (DO-15) package with axial leads: cathode indicated by band-marked end; anode is unmarked lead. Designed for through-hole mounting on FR-4 PCBs with 5 × 5 mm copper pads per terminal for thermal derating compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked lead) | Current entry point during forward conduction | Connected to ground or low-impedance return path in unidirectional TVS configuration |
| Cathode (banded lead) | Protected line connection point | Connected to input rail or signal line requiring transient suppression; reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and mechanical shock per JESD22 |
| Fast response time | <1.0 ps rise-to-VBR enables suppression of ESD events per IEC 61000-4-2 Level 4 (15 kV air) |
| Low dynamic impedance | Ensures minimal voltage overshoot during high-di/dt surges such as inductive switch-off in solenoid drivers |
| UL recognition | File #E-326243 confirms flammability and safety compliance for end-equipment certification |
| Halogen-free construction | Meets IEC 61249-2-21, supporting RoHS-compliant manufacturing and environmental compliance |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting 12 V sensor supply lines against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp placed between fused 12 V rail and LDO input. Use Value: Limits voltage to ≤92.0 V during 100 V/400 ms load dump pulses, preventing LDO destruction and maintaining MCU uptime. |
Use Scenario: Safeguarding 24 V digital input channels from field-wiring induced surges and EFT bursts. IC Role / Device Role / Timing Role: Front-end transient absorber before optocoupler or Schmitt-trigger input stage. Use Value: Clamps 4 kV EFT bursts to sub-100 V levels within nanoseconds, eliminating false triggering and input latch-up. |
| LED Driver Power Stage | Telecom Power Interface |
Use Scenario: Shielding buck controller feedback and enable pins from inductive kickback during LED string switching. IC Role / Device Role / Timing Role: Localized TVS adjacent to IC pins with shortest possible trace length. Use Value: Sub-1 ns response prevents >68 V excursions that would exceed absolute maximum ratings of precision feedback resistors and gate drivers. |
Use Scenario: Protecting 48 V PoE-powered equipment front-end from lightning-induced surges on Ethernet pairs. IC Role / Device Role / Timing Role: Secondary-stage clamp after gas discharge tube (GDT) and series impedance. Use Value: Provides low-clamping secondary protection with 92.0 V ceiling, ensuring downstream DC-DC converter survival under ITU-T K.21 severe surge conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ64A | DO-214AA package; 64 V standoff; 100 W peak power; lower surge rating | Better suited for space-constrained SMT designs but lacks AEC-Q101 qualification | Select SMBJ64A only if board area is critical and automotive qualification is not required |
| 1.5KE68A | Same DO-15 package; 68 V nominal; 1500 W peak power; higher clamping voltage (100 V) | Higher energy handling for infrequent, high-energy events; less precise clamping | Choose 1.5KE68A when protecting against lightning surges where clamping voltage margin is acceptable |
Compared with SMBJ64A and 1.5KE68A, the P6KE68AH uniquely balances AEC-Q101 compliance, 600 W surge capability, and tight 92.0 V clamping in a legacy-compatible DO-15 footprint - making it optimal for cost-sensitive, high-reliability automotive and industrial replacements.
Availability
P6KE68AH is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, LED driver power stages, and telecom power interface circuits requiring stable component supply across multi-year production cycles.
Supply support for P6KE68AH 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, specializing in power management, protection, and signal conditioning devices.
The P6KE series belongs to TSC's AEC-Q101-qualified TVS portfolio, engineered specifically for robust transient immunity in automotive and harsh-environment industrial applications where reliability under thermal and electrical stress is non-negotiable.
FAQ
What is the key difference between P6KE68AH and standard P6KE68A?
The P6KE68AH is identical to P6KE68A in electrical specifications - including 64.6–71.4 V breakdown, 58.1 V standoff, and 92.0 V clamping - but adds AEC-Q101 qualification for automotive use. This includes extended temperature cycling, high-temperature reverse bias testing, and mechanical robustness validation beyond industrial-grade requirements. The "H" suffix explicitly denotes this automotive qualification tier for P6KE68AH.
Does P6KE68AH support bidirectional transient suppression?
No, P6KE68AH is a unidirectional TVS diode, intended for DC rail protection where polarity is fixed. Its cathode band marks the protected line connection, and it conducts only during reverse overvoltage events. For bidirectional AC or data-line protection, TSC offers P6KE68CA variants - which are functionally distinct parts with symmetrical breakdown in both directions and no "H" suffix for AEC-Q101.
What is the maximum allowable ambient temperature for continuous operation of P6KE68AH?
P6KE68AH has a junction temperature limit of +175°C and is rated for continuous operation up to +75°C ambient when mounted on 5 × 5 mm copper pads per lead. Derating is required above 25°C per Figure 2 in the datasheet: at +75°C ambient, its peak pulse power drops to 5 W steady-state dissipation, though transient surge capability remains intact for short-duration events.
Can P6KE68AH be used in parallel for higher surge current handling?
No - P6KE68AH should not be paralleled due to mismatch in VBR tolerance (±5% typical) and dynamic impedance, leading to uneven current sharing and potential thermal runaway. For higher surge capacity, select a higher-power TVS like 1.5KE68A or implement staged protection with upstream GDTs and downstream low-capacitance TVS arrays instead of paralleling P6KE68AH units.
Is P6KE68AH compliant with RoHS and halogen-free standards?
Yes, P6KE68AH is RoHS compliant and halogen-free per IEC 61249-2-21. Its molding compound contains no brominated flame retardants or chlorine-based additives, and lead content meets EU Directive 2011/65/EU limits. Tin-plated leads conform to J-STD-002 for solderability, and whisker resistance is validated to JESD201 Class 2.
P6KE68AH 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):
- 58.1V
- Voltage - Breakdown (Min):
- 64.6V
- Voltage - Clamping (Max) @ Ipp:
- 92V
- Current - Peak Pulse (10/1000µs):
- 6.8A
- 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)
P6KE68AH FAQ
1.How can I place an order for P6KE68AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE68AH 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 P6KE68AH reliable?
The price and inventory of P6KE68AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE68AH is usually 5 days.
3.What payment methods are accepted for P6KE68AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE68AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE68AH?
P6KE68AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE68AH 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 P6KE68AH?
For technical support, including P6KE68AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE68AH requirements.
6.How does Aetrix verify that P6KE68AH is sourced from the original manufacturer or authorized distributors?
All P6KE68AH 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 P6KE68AH meets industry standards.
7.What is the process for return or replacement of P6KE68AH?
All P6KE68AH units undergo pre-shipment inspection (PSI). If there is an issue with P6KE68AH, 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 P6KE68AH part is unused and in its original packaging.
Return procedure for P6KE68AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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