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Vishay General Semiconductor - Diodes Division P6KE6.8AHE3/54
- Part No.:
- P6KE6.8AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE6.8AHE3/54.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,464
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Product details
Overview
P6KE6.8AHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 6.8 V breakdown voltage (VBR), 5.8 V stand-off voltage (VWM), 10.5 V maximum clamping voltage at 57.1 A peak pulse current, 600 W peak pulse power rating (10/1000 µs), and AEC-Q101 qualification for automotive-grade reliability - deployed to protect MOSFETs, ICs, and sensor interfaces against inductive switching transients.
For engineers reviewing the P6KE6.8AHE3/54 datasheet, P6KE6.8AHE3/54 pinout, P6KE6.8AHE3/54 application, or P6KE6.8AHE3/54 equivalent, key selection criteria include verified clamping performance under 10/1000 µs surge, DO-15 package thermal resistance (RθJL = 20 °C/W), unidirectional polarity with cathode band marking, and compliance with JESD 201 Class 2 whisker resistance.
Technical Context
This device operates as a silicon avalanche diode with glass-passivated junction, enabling sub-nanosecond response to voltage transients. Its clamping behavior is defined by a 10.5 V maximum VC at IPPM = 57.1 A, with low incremental surge resistance ensuring stable voltage limiting during repetitive 0.01 % duty cycle surges.
The P6KE6.8AHE3/54 is rated for -55 °C to +175 °C operating junction temperature, supports 100 A non-repetitive forward surge current (IFSM), and exhibits a 0.057 %/°C temperature coefficient of VBR, confirming stable breakdown across automotive thermal environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA test current - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| VWM | 5.8 V - maximum continuous reverse working voltage before leakage exceeds 1000 µA |
| VC @ IPPM | 10.5 V at 57.1 A - clamping voltage under standardized 10/1000 µs surge, directly limiting downstream component stress |
| PPPM | 600 W - peak pulse power handling capability, enabling protection against high-energy transients like ISO 7637-2 Pulse 1/2a |
| RθJL | 20 °C/W - junction-to-lead thermal resistance, supporting 5.0 W steady-state dissipation with proper PCB copper heatsinking |
| TJ max. | +175 °C - maximum junction temperature, validated for under-hood automotive operation without derating loss |
| AEC-Q101 | Qualified - certified for automotive electronics per stress test requirements including HTGB, HTRB, and TCT |
Pinout & Package
Package: DO-15 (DO-204AC) - axial-leaded, molded epoxy case with matte tin-plated leads solderable per J-STD-002; cathode indicated by color band on one end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during positive transient events when used in reverse-biased configuration |
| Cathode | Avalanche clamping terminal | Marked with color band; connected to higher-potential rail (e.g., VCC) to clamp negative transients to ground or suppress positive surges via reverse breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable, repeatable avalanche characteristics and long-term reliability under thermal cycling |
| 600 W peak pulse power (10/1000 µs) | Supports robust protection against common automotive and industrial surge waveforms without degradation |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes overvoltage overshoot during clamping, reducing risk of latch-up or gate oxide damage in protected MOSFETs/ICs |
| UL 94 V-0 molding compound | Ensures flame-retardant enclosure integrity in enclosed automotive and industrial enclosures |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Suppressing load dump and alternator ripple transients on 5 V/12 V microcontroller power rails in body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VCC and GND to clamp negative-going spikes and limit positive surges to ≤10.5 V. Use Value: Prevents brownout resets and permanent damage to 3.3 V/5 V logic supplies during ISO 16750-2 load dump events up to 35 V. |
Use Scenario: Protecting analog output pins of pressure/temperature sensors exposed to ESD and cable discharge events in factory automation. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt fast transients (<1 ns rise time) before reaching precision ADC front-end. Use Value: Maintains sensor accuracy by limiting input voltage excursion to <10.5 V during ±8 kV contact ESD (IEC 61000-4-2), avoiding saturation or latch-up. |
| Consumer USB Port Protection | Telecom Line Card Surge Protection |
|
Use Scenario: Safeguarding USB 2.0 D+/D− lines against ESD and hot-plug induced transients in portable docking stations. IC Role / Device Role / Timing Role: Dual unidirectional TVS (one per line) referenced to local ground, leveraging low capacitance and fast response. Use Value: Preserves signal integrity with <10 pF junction capacitance while clamping ±15 kV air discharge to <12 V per IEC 61000-4-2 Level 4. |
Use Scenario: Front-end protection of Ethernet PHY interface on telecom base station line cards subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping device on DC bias feed line, coordinated with gas discharge tube (GDT) for staged protection. Use Value: Absorbs initial 600 W surge energy (10/1000 µs) before GDT triggers, preventing premature failure of downstream CMOS transceivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.8A | DO-214AA package; 600 W rating; VC = 11.2 V at 53.3 A; RθJA = 40 °C/W vs. 75 °C/W for P6KE6.8AHE3/54 | Surface-mount alternative with higher board density but reduced thermal mass; less suitable for high-ambient under-hood use | Select SMBJ6.8A for space-constrained PCBs where reflow compatibility and automated assembly are prioritized over lead-based thermal relief. |
| 1.5KE6.8A | Same DO-15 package; 1500 W rating; VC = 10.5 V at 143 A; higher IPPM and larger die size increases cost and capacitance | Higher-power variant for systems requiring margin beyond ISO 7637-2 Pulse 5a; not AEC-Q101 qualified | Choose 1.5KE6.8A only when legacy designs demand >1 kW surge headroom and automotive qualification is not required. |
Compared with SMBJ6.8A and 1.5KE6.8A, the P6KE6.8AHE3/54 delivers optimal balance of AEC-Q101 compliance, DO-15 thermal performance (RθJL = 20 °C/W), and cost-effective 600 W protection - making it the preferred choice for production automotive ECUs and industrial controllers where leaded reliability and thermal management are critical.
Availability
P6KE6.8AHE3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, consumer power adapters, and telecom line card designs requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6KE6.8AHE3/54 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6KE series was engineered for cost-sensitive, high-volume transient suppression in automotive, industrial, and consumer systems - delivering AEC-Q101-qualified robustness in the industry-standard DO-15 package.
FAQ
What is the clamping voltage of the P6KE6.8AHE3/54 under maximum surge conditions?
The P6KE6.8AHE3/54 has a maximum clamping voltage (VC) of 10.5 V when subjected to its rated peak pulse current of 57.1 A using the standard 10/1000 µs waveform. This value is measured at the device terminals and reflects worst-case voltage seen by protected circuitry during transient events - a critical parameter for ensuring downstream ICs remain within absolute maximum ratings. The P6KE6.8AHE3/54 maintains this clamping performance across its full operating temperature range.
Is the P6KE6.8AHE3/54 suitable for automotive applications?
Yes, the P6KE6.8AHE3/54 is AEC-Q101 qualified and specifically designed for automotive use, including body control modules, infotainment power supplies, and sensor interfaces. Its -55 °C to +175 °C operating junction temperature range, glass-passivated junction, and DO-15 package with JESD 201 Class 2 whisker resistance meet stringent automotive reliability requirements. The P6KE6.8AHE3/54 is commonly deployed in systems requiring immunity to ISO 7637-2 and ISO 16750-2 transients.
How does the P6KE6.8AHE3/54 differ from the commercial-grade P6KE6.8A-E3/54?
The P6KE6.8AHE3/54 differs from the P6KE6.8A-E3/54 solely in qualification level: the "H" suffix denotes AEC-Q101 qualification, while the base E3 version is commercial grade. Both share identical electrical specifications (VBR, VC, PPPM), DO-15 packaging, and RoHS compliance. The P6KE6.8AHE3/54 undergoes additional stress testing per AEC-Q101, including HTGB, HTRB, and temperature cycling - making it mandatory for automotive production, whereas the P6KE6.8A-E3/54 is restricted to industrial or consumer use.
What is the thermal resistance profile of the P6KE6.8AHE3/54?
The P6KE6.8AHE3/54 has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W and junction-to-ambient resistance (RθJA) of 75 °C/W at TA = 25 °C. This low RθJL enables effective heat transfer through the leads to PCB copper, supporting its 5.0 W steady-state power dissipation rating when mounted with ≥10 mm² of 2 oz copper pour per lead. The P6KE6.8AHE3/54's thermal design allows sustained operation in high-ambient environments such as engine compartments.
Can the P6KE6.8AHE3/54 be used in bidirectional configurations?
No, the P6KE6.8AHE3/54 is a unidirectional TVS diode, identified by the "A" suffix and cathode band marking. Bidirectional variants in the same family use the "CA" suffix (e.g., P6KE6.8CA). Using the P6KE6.8AHE3/54 in a bidirectional application would result in forward conduction during negative transients, causing failure. For AC or dual-polarity signal line protection, the P6KE6.8AHE3/54 must be paired with a second device or replaced with a certified bidirectional part.
P6KE6.8AHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 57.1A
- 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)
P6KE6.8AHE3/54 FAQ
1.How can I place an order for P6KE6.8AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE6.8AHE3/54 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 P6KE6.8AHE3/54 reliable?
The price and inventory of P6KE6.8AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE6.8AHE3/54 is usually 5 days.
3.What payment methods are accepted for P6KE6.8AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE6.8AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE6.8AHE3/54?
P6KE6.8AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE6.8AHE3/54 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 P6KE6.8AHE3/54?
For technical support, including P6KE6.8AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE6.8AHE3/54 requirements.
6.How does Aetrix verify that P6KE6.8AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P6KE6.8AHE3/54 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 P6KE6.8AHE3/54 meets industry standards.
7.What is the process for return or replacement of P6KE6.8AHE3/54?
All P6KE6.8AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE6.8AHE3/54, 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 P6KE6.8AHE3/54 part is unused and in its original packaging.
Return procedure for P6KE6.8AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE6.8AHE3/54 Tags
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