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Vishay General Semiconductor - Diodes Division P6KA11AHE3/73
- Part No.:
- P6KA11AHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KA11AHE3/73.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,429
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Product details
Overview
P6KA11AHE3/73 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 10.5 V to 11.6 V breakdown voltage (VBR), 9.40 V stand-off voltage (VWM), 600 W peak pulse power (10/1000 μs), 38.5 A peak pulse current (IPPM), and 15.6 V clamping voltage at IPPM, operating reliably up to +185 °C junction temperature - ideal for automotive power rail and sensor interface protection.
For engineers reviewing the P6KA11AHE3/73 datasheet, P6KA11AHE3/73 pinout, P6KA11AHE3/73 application, or P6KA11AHE3/73 equivalent, key selection criteria include its AEC-Q101 qualification, DO-204AC (DO-15) package compatibility, unidirectional polarity, 5.0 μA max reverse leakage at VWM, and 0.076 %/°C VBR temperature coefficient - critical for high-temperature automotive and industrial designs requiring stable clamping behavior.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology with optimized junction passivation, enabling stable operation at TJ = 185 °C and compliance with AEC-Q101 stress testing for automotive reliability. Its unidirectional configuration provides low forward voltage (VF = 3.5 V at 50 A) and fast response to transients induced by inductive switching.
The device is rated for 600 W peak pulse power (10/1000 μs waveform, 0.01 % duty cycle), with clamping performance validated at 15.6 V under 38.5 A surge, and exhibits low incremental surge resistance - essential for limiting voltage overshoot during ESD and load-dump events in 12 V automotive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 10.5 V / 11.6 V - defines reliable conduction onset range under 1.0 mA test current; ensures consistent turn-on across temperature and unit variation |
| VWM | 9.40 V - maximum continuous reverse working voltage before leakage exceeds 5.0 μA; sets safe operating margin below breakdown |
| IPPM | 38.5 A - peak surge current survivable with 10/1000 μs waveform; determines protection level against ISO 7637-2 Pulse 1/2a/5a transients |
| VC @ IPPM | 15.6 V - clamped voltage during full-rated surge; directly limits stress on downstream ICs like MCUs or CAN transceivers |
| TJ max. | +185 °C - enables placement near hot components (e.g., power MOSFETs, engine control units) without derating concerns |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with 9.5 mm body length; compatible with automated through-hole assembly and manual repair |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including HTOL, TC, UHAST, and mechanical shock per AEC standard |
Pinout & Package
Package: DO-204AC (DO-15), molded epoxy case with matte tin-plated leads; cathode denoted by color band; RoHS-compliant and JESD 201 Class 2 whisker tested (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or low-impedance return plane; completes clamping loop during positive transients |
| Cathode | Protected line connection / transient sink | Connected to line being protected (e.g., battery feed, sensor supply); conducts surge current into anode when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature operation | TJ = –65 °C to +185 °C - eliminates need for thermal derating in under-hood automotive modules |
| AEC-Q101 qualification | Validated for automotive use - reduces qualification burden for Tier 1 suppliers targeting ISO/TS 16949 production |
| Low clamping ratio | VC/VBR ≈ 1.34 - tight voltage control minimizes overvoltage exposure to sensitive 3.3 V or 5 V logic interfaces |
| Fast transient response | < 1.0 ps typical - responds ahead of system-level protection devices (e.g., fuses, poly-switches), preserving component integrity |
| Robust surge handling | 75 A IFSM (8.3 ms half-sine) - withstands repetitive load dump surges common in alternator-regulated 12 V systems |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from ISO 7637-2 load dump (Pulse 5a) and jump-start transients. IC Role / Device Role / Timing Role: Primary clamping device placed at power entry point; absorbs energy before it reaches DC/DC converters and microcontrollers. Use Value: Clamps to 15.6 V at 38.5 A, limiting input voltage to levels safe for 16 V-rated input stages - preventing latch-up or permanent damage. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in factory automation PLCs from EFT and surge coupling. IC Role / Device Role / Timing Role: Unidirectional TVS on signal line between sensor and ADC input; shunts fast transients (<1 ns rise time) to ground. Use Value: 5.0 μA leakage at 9.40 V ensures minimal signal offset error in precision 24-bit measurement circuits at ambient and elevated temperatures. |
| Telecom Power Supply Input | Consumer Appliance Motor Drive Protection |
|
Use Scenario: Safeguarding AC/DC adapter inputs in base station power supplies against lightning-induced surges on primary-side rectifiers. IC Role / Device Role / Timing Role: Secondary-stage TVS after MOV; provides precise, repeatable clamping where MOV tolerance and degradation are unacceptable. Use Value: 600 W peak pulse rating and 0.076 %/°C VBR TC ensure stable protection performance across –40 °C to +85 °C operating range. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Across-motor terminals to clamp flyback voltage during PWM commutation; prevents MOSFET drain-source avalanche failure. Use Value: 3.5 V VF at 50 A enables low-loss freewheeling path during motor coast-down, reducing heat generation in PCB traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11A-E3/5AT | Same VWM (9.4 V), but lower PPPM (400 W), higher VC (18.2 V), and SMA package (SMT) | Not AEC-Q101 qualified; suited for cost-sensitive consumer boards where reflow compatibility is prioritized over automotive reliability | Select if SMT assembly is required and 18.2 V clamping is acceptable for protected ICs |
| 1.5KE11A | Same VBR range and DO-204AC package, but 1.5 kW PPPM, higher VC (18.2 V), no AEC-Q101, and larger DO-204AL (DO-41) footprint | Designed for general-purpose industrial surge suppression; lacks high-temp stability and automotive qualification | Select only if higher surge energy handling is needed and board space allows DO-41 layout change |
Compared with SMAJ11A-E3/5AT and 1.5KE11A, the P6KA11AHE3/73 delivers superior high-temperature stability (185 °C vs. 150 °C), tighter clamping (15.6 V vs. ≥18.2 V), and automotive-grade qualification - making it the preferred choice for mission-critical 12 V systems where reliability and compact DO-15 fit are both required.
Availability
P6KA11AHE3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor signal conditioning, and telecom power supply input protection requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for P6KA11AHE3/73 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, and optoelectronics with emphasis on reliability, power efficiency, and automotive-grade qualification.
The P6KA11AHE3/73 belongs to Vishay's PAR® series of high-reliability TVS diodes, engineered specifically for harsh-environment applications demanding AEC-Q101 compliance, 185 °C operation, and stable clamping under repetitive surge conditions.
FAQ
What is the maximum operating temperature for the P6KA11AHE3/73?
The P6KA11AHE3/73 has a maximum junction temperature (TJ) of +185 °C, verified per AEC-Q101 testing. This allows direct placement near heat sources such as power MOSFETs or engine compartments without thermal derating. The P6KA11AHE3/73 maintains specified VBR and leakage performance across its full –65 °C to +185 °C operating range.
Is the P6KA11AHE3/73 suitable for automotive applications?
Yes - the P6KA11AHE3/73 is AEC-Q101 qualified and explicitly designed for automotive use, including engine control units, body electronics, and ADAS sensors. Its 185 °C rating, low VC (15.6 V), and DO-204AC package meet ISO 7637-2 Pulse 1, 2a, and 5a requirements. The P6KA11AHE3/73 is listed in Vishay's automotive-grade product portfolio with full qualification documentation.
What does the "HE3/73" suffix indicate in P6KA11AHE3/73?
The "HE3" suffix denotes RoHS-compliant, matte tin-plated leads meeting J-STD-002 and JESD 22-B102 solderability standards, plus JESD 201 Class 2 whisker resistance. The "/73" indicates packaging in 73" diameter tape-and-reel format (4000 pcs/reel). The P6KA11AHE3/73 is fully traceable and conforms to Vishay's automotive material categorization per doc# 99912.
How does the clamping voltage of P6KA11AHE3/73 compare to similar 11 V TVS diodes?
The P6KA11AHE3/73 clamps to 15.6 V at its rated 38.5 A peak pulse current - significantly lower than alternatives like 1.5KE11A (18.2 V) or SMAJ11A (18.2 V). This 2.6 V advantage directly reduces stress on downstream 16 V-rated regulators and microcontrollers. The P6KA11AHE3/73 achieves this via optimized junction design and low incremental surge resistance.
Can the P6KA11AHE3/73 be used in bidirectional configurations?
No - the P6KA11AHE3/73 is unidirectional only, as confirmed in the Vishay datasheet (Document #88368, Section "FEATURES"). It protects against positive transients on the cathode side relative to anode. For bidirectional protection, two P6KA11AHE3/73 devices must be connected in series opposing configuration, or a dedicated bidirectional part (e.g., P6SMB11CA) should be selected instead.
P6KA11AHE3/73 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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 38.5A
- 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)
P6KA11AHE3/73 FAQ
1.How can I place an order for P6KA11AHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KA11AHE3/73 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 P6KA11AHE3/73 reliable?
The price and inventory of P6KA11AHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KA11AHE3/73 is usually 5 days.
3.What payment methods are accepted for P6KA11AHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KA11AHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KA11AHE3/73?
P6KA11AHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KA11AHE3/73 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 P6KA11AHE3/73?
For technical support, including P6KA11AHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KA11AHE3/73 requirements.
6.How does Aetrix verify that P6KA11AHE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KA11AHE3/73 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 P6KA11AHE3/73 meets industry standards.
7.What is the process for return or replacement of P6KA11AHE3/73?
All P6KA11AHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KA11AHE3/73, 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 P6KA11AHE3/73 part is unused and in its original packaging.
Return procedure for P6KA11AHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KA11AHE3/73 Tags
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