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Vishay General Semiconductor - Diodes Division P6KA11HE3/73
- Part No.:
- P6KA11HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KA11HE3/73.pdf
- Description:
- TVS DIODE 8.92VWM 16.2VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,616
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Product details
Overview
P6KA11HE3/73 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for primary overvoltage protection of sensitive electronics. It features a 9.9 V minimum breakdown voltage (VBR), 8.92 V standoff voltage (VWM), 600 W peak pulse power (10/1000 μs), 16.2 V maximum clamping voltage at 37 A, and operates up to +185 °C junction temperature - deployed in automotive power line and sensor interface protection.
For engineers reviewing the P6KA11HE3/73 datasheet, P6KA11HE3/73 pinout, P6KA11HE3/73 application, or P6KA11HE3/73 equivalent, key selection criteria include unidirectional polarity, DO-204AC (DO-15) package compatibility, AEC-Q101 qualification, high-temperature reliability (TJ = 185 °C), and clamping performance under 10/1000 μs surge conditions.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with optimized junction passivation for stable clamping under repetitive transients. Its unidirectional structure provides low forward voltage (VF = 3.5 V at 50 A) and fast response time to protect downstream ICs and MOSFETs from inductive switching spikes.
Rated for 600 W peak pulse power (10/1000 μs waveform, 0.01% duty cycle), it delivers 37 A peak pulse current (IPPM) with 16.2 V clamping voltage - enabling robust protection in 12 V automotive systems where load dump and ISO 7637-2 pulses are present.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 8.92 V - Maximum continuous reverse operating voltage before leakage exceeds 5 μA; sets upper limit for safe DC bias in protected circuit. |
| VBR (min/max) | 9.9 V / 12.1 V at 1 mA - Confirmed breakdown range ensures reliable turn-on during transients without premature conduction. |
| VC @ IPPM | 16.2 V at 37 A - Clamping voltage limits stress on downstream components during 10/1000 μs surges. |
| PPPM | 600 W - Peak pulse power rating defines energy-handling capability for standardized surge waveforms. |
| TJ max. | +185 °C - Enables operation in under-hood automotive environments and high-reliability industrial enclosures. |
| IFSM | 75 A - Non-repetitive forward surge current rating supports survival during high-energy fault events. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive electronic components per JESD22-A108. |
Pinout & Package
Package: DO-204AC (DO-15), molded epoxy case with matte tin-plated leads; cathode indicated by color band; RoHS-compliant and whisker-tested (JESD 201 Class 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return in unidirectional TVS configuration; carries full surge current during clamping. |
| Cathode | Protected line connection | Connected to the line being protected (e.g., 12 V rail); reverse-biased during normal operation; avalanches during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR and low leakage (<5 μA at VWM) across temperature and life cycle. |
| High-temperature operation | 185 °C maximum junction temperature enables use in engine control units and powertrain modules without derating. |
| Clamping efficiency | 16.2 V clamping at 37 A (10/1000 μs) yields <2.7× VWM ratio - critical for protecting 12 V logic interfaces and CAN transceivers. |
| Solderability & reliability | Matte tin plating compliant with J-STD-002/JESD 22-B102; withstands 275 °C solder dip (10 s); JESD 201 Class 2 whisker resistance. |
| AEC-Q101 qualification | Validated for automotive applications including temperature cycling, HTRB, and surge testing - no additional qualification needed for Tier 1 designs. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V supply rails in engine control units (ECUs) against load dump and ISO 7637-2 Pulse 5a/b. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor to clamp transients before they reach LDOs and microcontrollers. Use Value: 16.2 V clamping voltage prevents overvoltage damage to 16 V-rated input stages while surviving 75 A surge currents. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events in factory automation systems. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt fast transients (<1 ns rise time) before reaching signal conditioning op-amps. Use Value: Sub-100 ps response time and 1.0 μA leakage at 8.92 V preserve signal integrity and minimize offset drift in precision measurement paths. |
| Telecom Power Input Protection | Computer Peripheral Port Protection |
Use Scenario: Safeguarding 12 V DC inputs of base station power supplies from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary-level TVS in series with fuse and common-mode choke to absorb 600 W surge energy before secondary regulation. Use Value: 600 W peak pulse rating and 185 °C thermal capability allow operation in sealed, high-ambient telecom enclosures without forced cooling. |
Use Scenario: Protecting USB-C or SATA power pins in docking stations from hot-plug induced transients and ESD events. IC Role / Device Role / Timing Role: Unidirectional TVS placed on VBUS line to clamp overvoltage while maintaining low capacitance (<100 pF) for signal integrity. Use Value: 8.92 V standoff allows compatibility with 5–20 V USB PD profiles; DO-15 footprint enables compact layout near connectors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11A | Lower peak pulse power (400 W), same DO-214AC package, 11.1 V VWM, 18.2 V VC at 22.5 A | Not AEC-Q101 qualified; suited for commercial-grade consumer electronics, not automotive under-hood use | Select when cost sensitivity outweighs automotive qualification and higher surge margin is unnecessary. |
| 1.5KE11A | Higher VC (18.2 V), larger DO-201AD package, 75 A IFSM, but only 150 °C TJ max and no AEC-Q101 | Larger footprint and lower temperature rating limit use in space-constrained, high-temp automotive modules | Choose only for legacy industrial designs where DO-201AD is already routed and AEC-Q101 is not required. |
Compared with SMAJ11A and 1.5KE11A, the P6KA11HE3/73 offers superior automotive readiness (AEC-Q101 + 185 °C), tighter clamping (16.2 V vs. ≥18.2 V), and identical DO-15 footprint - making it the preferred choice for new automotive and high-reliability industrial designs requiring drop-in manufacturability and long-term supply stability.
Availability
P6KA11HE3/73 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, and telecom power inputs requiring stable component supply, AEC-Q101 compliance, and high-temperature operational continuity.
Supply support for P6KA11HE3/73 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, TVS devices, and optoelectronics with emphasis on reliability, high-temperature performance, and automotive qualification.
The P6KA11HE3/73 belongs to Vishay's PAR® (Precision Avalanche Rated) TVS family, engineered specifically for robust transient suppression in harsh automotive and industrial environments where sustained high-temperature operation and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of the P6KA11HE3/73 under standard surge conditions?
The P6KA11HE3/73 has a maximum clamping voltage (VC) of 16.2 V at 37 A peak pulse current with a 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees predictable overvoltage limiting during standardized surge events - critical for protecting 12 V system components without exceeding their absolute maximum ratings. The P6KA11HE3/73 maintains this clamping performance across its full operating temperature range.
Is the P6KA11HE3/73 qualified for automotive applications?
Yes, the P6KA11HE3/73 is AEC-Q101 qualified, having passed all stress tests including high-temperature reverse bias (HTRB), temperature cycling, and surge testing per JESD22-A108. Its 185 °C maximum junction temperature and DO-204AC packaging meet automotive under-hood requirements. The P6KA11HE3/73 is explicitly listed in Vishay's AEC-Q101 qualified product matrix for transient suppression.
What does the "HE3/73" suffix indicate in P6KA11HE3/73?
The "HE3" suffix denotes RoHS-compliant, matte tin-plated leads meeting J-STD-002 solderability and JESD 201 Class 2 whisker resistance. The "/73" indicates tape-and-reel packaging in 73 mm carrier tape width, standard for DO-15 devices - distinct from "/54" (54 mm tape) used in other variants. This packaging format ensures compatibility with automated SMT placement equipment for the P6KA11HE3/73.
How does the P6KA11HE3/73 compare to bidirectional TVS diodes in circuit design?
The P6KA11HE3/73 is unidirectional and must be oriented with cathode toward the protected line - unlike bidirectional types, it conducts only during negative transients relative to ground. This makes it ideal for DC power rail protection where polarity is fixed, offering lower leakage (<5 μA at 8.92 V) and tighter clamping than equivalent bidirectional parts. Circuit layout for the P6KA11HE3/73 requires correct polarity marking and avoids AC-coupled signal lines.
What is the maximum steady-state power dissipation for the P6KA11HE3/73?
The P6KA11HE3/73 has a maximum steady-state power dissipation (PD) of 5.0 W when mounted on an infinite heatsink at lead temperature (TL) = 75 °C. This rating applies to continuous DC or low-duty-cycle operation - not surge conditions. Derating is required above 75 °C per the power derating curve in Figure 5 of the datasheet. For typical PCB mounting, actual usable PD is ~0.8–1.2 W depending on copper area and airflow. The P6KA11HE3/73 is not intended for continuous power regulation.
P6KA11HE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- PAR®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8.92V
- Voltage - Breakdown (Min):
- 9.9V
- Voltage - Clamping (Max) @ Ipp:
- 16.2V
- Current - Peak Pulse (10/1000µs):
- 37A
- 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)
P6KA11HE3/73 FAQ
1.How can I place an order for P6KA11HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KA11HE3/73 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 P6KA11HE3/73 reliable?
The price and inventory of P6KA11HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KA11HE3/73 is usually 5 days.
3.What payment methods are accepted for P6KA11HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KA11HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KA11HE3/73?
P6KA11HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KA11HE3/73 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 P6KA11HE3/73?
For technical support, including P6KA11HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KA11HE3/73 requirements.
6.How does Aetrix verify that P6KA11HE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KA11HE3/73 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 P6KA11HE3/73 meets industry standards.
7.What is the process for return or replacement of P6KA11HE3/73?
All P6KA11HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KA11HE3/73, 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 P6KA11HE3/73 part is unused and in its original packaging.
Return procedure for P6KA11HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KA11HE3/73 Tags
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