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Vishay General Semiconductor - Diodes Division P6KA6.8AHE3/54
- Part No.:
- P6KA6.8AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KA6.8AHE3/54.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,602
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Product details
Overview
P6KA6.8AHE3/54 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for primary overvoltage protection of DC power rails and signal lines. It features a 6.45 V to 7.14 V breakdown voltage (VBR) at 10 mA, 5.80 V maximum stand-off voltage (VWM), 600 W peak pulse power (10/1000 μs), and AEC-Q101 qualification for automotive-grade reliability in engine control units and body electronics.
For engineers reviewing the P6KA6.8AHE3/54 datasheet, P6KA6.8AHE3/54 pinout, P6KA6.8AHE3/54 application, or P6KA6.8AHE3/54 equivalent, key selection criteria include clamping voltage (10.5 V at 57.1 A), unidirectional polarity, DO-204AC (DO-15) package compatibility, and high-temperature operation up to +185 °C junction.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with optimized junction passivation for stable clamping under repetitive surge stress. Its 10.5 V maximum clamping voltage at 57.1 A IPPM ensures robust protection of downstream MOSFETs and ICs during 10/1000 μs transients.
The device operates across -65 °C to +185 °C junction temperature range and maintains low incremental surge resistance, enabling fast response (<1 ns) and minimal let-through energy. Its 0.057 %/°C VBR temperature coefficient supports predictable performance across automotive thermal profiles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA - defines precise conduction onset for reliable overvoltage triggering |
| VWM | 5.80 V - maximum continuous reverse voltage before leakage exceeds 500 μA at 25 °C |
| VC @ IPPM | 10.5 V at 57.1 A - clamping voltage limiting stress on protected circuitry during 10/1000 μs surge |
| PPPM | 600 W - peak pulse power handling capability per 10/1000 μs waveform, 0.01 % duty cycle |
| TJ max. | +185 °C - enables use in under-hood automotive environments without derating penalties |
| AEC-Q101 | Qualified - meets stress test requirements for automotive electronic components |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with matte tin-plated leads |
Pinout & Package
DO-204AC (DO-15) molded epoxy package with axial leads; cathode denoted by color band. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker test (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance return in unidirectional TVS configuration |
| Cathode | Protected line connection / clamping node | Connected to line being protected (e.g., 5 V rail); color band identifies this terminal |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR and low leakage over lifetime and temperature |
| High-temperature capability | TJ = 185 °C rating allows direct placement near heat sources in automotive ECUs without thermal derating |
| Clamping performance | 10.5 V clamping at 57.1 A provides <2.5× VWM margin-critical for safeguarding 5 V logic interfaces |
| Solderability & reliability | HE3 suffix confirms JESD 201 Class 2 whisker resistance and 275 °C/10 s solder dip compliance |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 5 V supply lines in engine control modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient energy before it reaches MCU power pins. Use Value: 5.80 V VWM ensures no conduction during normal operation; 10.5 V VC limits stress to within 110 % of nominal rail voltage. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA transmitters) in factory automation systems. IC Role / Device Role / Timing Role: Fast-response surge suppression on sensor signal paths subject to ESD and inductive switching noise. Use Value: Sub-1 ns response time and 500 μA leakage at VWM preserve signal integrity and measurement accuracy. |
| Consumer USB Port Protection | Telecom Line Card Surge Suppression |
Use Scenario: Secondary overvoltage protection on VBUS lines of USB 2.0 host ports in set-top boxes and docking stations. IC Role / Device Role / Timing Role: Standoff-clamp TVS placed after primary polyfuse, absorbing residual surges that bypass upstream protection. Use Value: DO-15 package enables through-hole mounting with mechanical robustness; AEC-Q101 qualification adds margin for field-reliability-critical consumer devices. |
Use Scenario: Protecting Ethernet PHY interface lines (e.g., MDI pairs) in DSLAM line cards subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Primary clamping element on differential data lines, coordinated with common-mode chokes. Use Value: 600 W PPPM rating handles telecom-grade 10/700 μs surges when derated per IEC 61000-4-5; low VC/VBR ratio minimizes data distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.0A | Lower VBR (6.67–7.37 V), same DO-214AC package, 600 W rating, but only rated to +150 °C TJ | Lacks AEC-Q101 qualification; suitable for industrial/commercial, not automotive under-hood | Select SMAJ6.0A only if ambient temperature stays below 125 °C and automotive qualification is not required. |
| 1.5KE6.8A | Higher VC (11.5 V), same VWM/VBR range, but larger DO-201AD package and 1.5 kW rating - over-specified for 5 V rail protection | Higher clamping voltage increases risk of damage to 5 V logic; bulkier footprint reduces board density | Prefer P6KA6.8AHE3/54 where space-constrained 5 V protection with tight clamping is required. |
Compared with SMAJ6.0A and 1.5KE6.8A, P6KA6.8AHE3/54 delivers tighter VBR tolerance, lower clamping voltage, and verified +185 °C operation-making it optimal for automotive and high-reliability 5 V system protection where thermal margin and precision clamping are critical.
Availability
P6KA6.8AHE3/54 is available at Aetrix Electronics and suitable for automotive engine control units, industrial sensor interfaces, and consumer USB power rail protection requiring stable component supply, AEC-Q101 compliance, and high-temperature resilience.
Supply support for P6KA6.8AHE3/54 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, thermal performance, and automotive qualification.
The P6KA6.8AHE3/54 belongs to Vishay's PAR® series of high-power TVS diodes, engineered specifically for demanding automotive and industrial environments where sustained high-temperature operation and repeatable surge immunity are mandatory.
FAQ
What is the exact breakdown voltage range for P6KA6.8AHE3/54?
The P6KA6.8AHE3/54 has a guaranteed breakdown voltage (VBR) range of 6.45 V to 7.14 V measured at 10 mA test current and 25 °C ambient. This narrow tolerance reflects its "A" variant designation and ensures consistent turn-on behavior across production lots, critical for protecting 5 V systems where overvoltage margin is constrained.
Is P6KA6.8AHE3/54 suitable for automotive under-hood applications?
Yes, P6KA6.8AHE3/54 is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood automotive applications such as engine control units, transmission control modules, and body control modules where ambient temperatures exceed 125 °C and long-term reliability is essential.
What does the "HE3/54" suffix indicate in P6KA6.8AHE3/54?
The "HE3" suffix denotes RoHS-compliant construction with matte tin-plated leads meeting JESD 201 Class 2 whisker resistance, while "/54" specifies packaging in 13-inch paper tape and reel with 4000 units per reel. This packaging format supports automated SMT placement despite the DO-15 axial package requiring manual or wave-solder processes.
How does the clamping voltage of P6KA6.8AHE3/54 compare to its stand-off voltage?
P6KA6.8AHE3/54 has a maximum stand-off voltage (VWM) of 5.80 V and a maximum clamping voltage (VC) of 10.5 V at 57.1 A, yielding a VC/VWM ratio of ~1.81. This tight ratio ensures effective protection of 5 V logic without excessive overvoltage stress, unlike higher-ratio alternatives that may exceed safe IC input limits.
Can P6KA6.8AHE3/54 be used in bidirectional configurations?
No, P6KA6.8AHE3/54 is unidirectional only, as explicitly stated in the Vishay datasheet. Its internal structure supports conduction only from cathode to anode during reverse surge events. For bidirectional protection, a separate pair of unidirectional devices or a dedicated bidirectional TVS (e.g., P6KE6.8CA) must be used.
P6KA6.8AHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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:
- -65°C ~ 185°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KA6.8AHE3/54 FAQ
1.How can I place an order for P6KA6.8AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KA6.8AHE3/54 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 P6KA6.8AHE3/54 reliable?
The price and inventory of P6KA6.8AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KA6.8AHE3/54 is usually 5 days.
3.What payment methods are accepted for P6KA6.8AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KA6.8AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KA6.8AHE3/54?
P6KA6.8AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KA6.8AHE3/54 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 P6KA6.8AHE3/54?
For technical support, including P6KA6.8AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KA6.8AHE3/54 requirements.
6.How does Aetrix verify that P6KA6.8AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P6KA6.8AHE3/54 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 P6KA6.8AHE3/54 meets industry standards.
7.What is the process for return or replacement of P6KA6.8AHE3/54?
All P6KA6.8AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KA6.8AHE3/54, 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 P6KA6.8AHE3/54 part is unused and in its original packaging.
Return procedure for P6KA6.8AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KA6.8AHE3/54 Tags
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