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Vishay General Semiconductor - Diodes Division P4KA11HE3/54
- Part No.:
- P4KA11HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KA11HE3/54.pdf
- Description:
- TVS DIODE 8.92VWM 16.2VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,679
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Product details
Overview
P4KA11HE3/54 from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) diode in DO-204AL (DO-41) package, rated for 400 W peak pulse power (10/1000 µs), 16.2 V clamping voltage at 24.7 A surge current, and 9.9–12.1 V breakdown voltage at 1 mA test current. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients in automotive powertrain and body electronics.
For engineers reviewing the P4KA11HE3/54 datasheet, P4KA11HE3/54 pinout, P4KA11HE3/54 application, or P4KA11HE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C max junction temperature, 1.5 W steady-state power dissipation, low 0.075 %/°C VBR temperature coefficient, and RoHS-compliant HE3 high-reliability lead finish.
Technical Context
The P4KA11HE3/54 operates as a unidirectional avalanche diode with patented PAR® construction, delivering precise voltage clamping during fast-rising transients. Its 10/1000 µs waveform response ensures robust protection against load-dump and ISO 7637-2 pulses in 12 V automotive systems.
Designed for high-temperature stability, it maintains specified VBR, IPPM, and VC performance across –65 °C to +185 °C junction range and supports soldering per J-STD-002 and JESD22-B102 with 260 °C / 40 s tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 9.9–12.1 V at 1 mA - defines minimum clamping threshold before avalanche conduction |
| Clamping Voltage VC | 16.2 V at 24.7 A peak pulse - maximum voltage seen by protected circuit during worst-case surge |
| Peak Pulse Power PPPM | 400 W (10/1000 µs) - sustains standardized automotive surge without failure |
| Stand-off Voltage VWM | 8.92 V - maximum continuous reverse voltage before leakage exceeds 1 µA |
| Junction Temperature Range | –65 °C to +185 °C - enables under-hood deployment in engine control units and transmission modules |
| Temperature Coefficient of VBR | 0.075 %/°C - ensures predictable voltage shift over temperature for stable protection margins |
Pinout & Package
DO-204AL (DO-41) molded epoxy package with matte tin-plated leads; cathode denoted by color band. Leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction | Connected to ground or low-side reference in unidirectional TVS configuration |
| Cathode | Current exit during forward conduction; clamping node during reverse surge | Connected to protected line (e.g., CAN_H, LIN, sensor supply); absorbs transient energy into ground path |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables uniform avalanche distribution across junction, minimizing localized thermal stress during repetitive surges |
| AEC-Q101 qualification | Validated for automotive applications including powertrain, chassis, and body control modules per stress test requirements |
| Low incremental surge resistance | Ensures minimal VC overshoot during fast 10/1000 µs transients, preserving downstream component integrity |
| RoHS-compliant HE3 finish | Matte tin plating with JESD201 Class 2 whisker resistance - eliminates field failures from tin whisker growth in long-life automotive systems |
Applications
| Engine Control Unit (ECU) Power Input Protection | Automotive Sensor Signal Line Protection |
|---|---|
Use Scenario: Protects 12 V supply rail of engine control units against ISO 7637-2 pulse 5a (load dump) and pulse 1 (inductive switch-off). IC Role / Device Role / Timing Role: Unidirectional TVS clamps transient voltage to ≤16.2 V, diverting up to 24.7 A surge current away from MCU power pins and LDO regulators. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V domain ICs during cold-cranking and alternator regulation faults. | Use Scenario: Shields analog output lines of pressure, temperature, and position sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Placed between sensor output and microcontroller ADC input, limiting voltage to safe levels while maintaining signal fidelity below VWM = 8.92 V. Use Value: Enables reliable operation in harsh environments where sensor harnesses act as antennas for radiated transients. |
| Body Control Module (BCM) LIN Bus Protection | Transmission Control Module (TCM) Solenoid Driver Protection |
Use Scenario: Guards LIN bus transceivers against coupled transients from adjacent 12 V loads (e.g., door lock actuators, lighting). IC Role / Device Role / Timing Role: Connected between LIN line and ground, clamping fast edges (<1 ns rise time) without distorting 19.2 kbps data waveform. Use Value: Maintains communication integrity during vehicle assembly line ESD events and service shop grounding anomalies. | Use Scenario: Protects high-side solenoid drivers from inductive kickback when de-energizing fuel injectors or shift solenoids. IC Role / Device Role / Timing Role: Mounted across solenoid coil terminals, absorbing stored magnetic energy with 400 W peak capability and 185 °C junction rating. Use Value: Extends driver IC lifetime by eliminating voltage spikes exceeding 40 V that would otherwise cause gate oxide breakdown. |
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 DO-214AC (SMA) package; 11.1–12.3 V VBR; 17.3 V VC at 23.1 A; 400 W rating; AEC-Q101 qualified | Surface-mount footprint requires PCB redesign; higher VC margin may reduce system-level noise immunity | Select when space-constrained layouts demand SMT integration and thermal management via copper pour is feasible |
| P4KE11AHE3/A | Same DO-204AL package; 11.1–12.3 V VBR; 17.3 V VC at 23.1 A; 400 W rating; not AEC-Q101 qualified | Lacks automotive qualification; suitable only for industrial/commercial grade systems with lower reliability requirements | Select for cost-sensitive non-automotive applications where AEC-Q101 is not mandated and legacy through-hole assembly is retained |
Compared with SMAJ11A-E3/5AT and P4KE11AHE3/A, the P4KA11HE3/54 uniquely combines AEC-Q101 qualification, DO-204AL through-hole compatibility, and optimized 16.2 V clamping for 12 V automotive domains-making it the preferred choice for production-grade engine and chassis control modules requiring zero-layout-change upgrades.
Availability
P4KA11HE3/54 is available at Aetrix Electronics and suitable for automotive powertrain control, body electronics protection, and sensor interface circuits requiring stable component supply across extended product lifecycles.
Supply support for P4KA11HE3/54 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, high-temperature, and automotive-qualified components.
The P4KA11HE3/54 belongs to Vishay's automotive TVS diode family engineered specifically for ISO 7637-2 and ISO 16750-2 compliance in engine control, transmission, and ADAS subsystems.
FAQ
What is the clamping voltage of the P4KA11HE3/54 under peak surge conditions?
The P4KA11HE3/54 has a maximum clamping voltage (VC) of 16.2 V at 24.7 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards and represents the upper voltage limit imposed on protected circuitry during worst-case transient events. The P4KA11HE3/54 maintains this clamping performance across its full operating temperature range.
Is the P4KA11HE3/54 qualified for automotive use?
Yes, the P4KA11HE3/54 is AEC-Q101 qualified and designated as high-reliability/automotive grade (base P/NHE3). It undergoes stress testing per AEC-Q101 requirements including temperature cycling, humidity bias, and high-temperature operating life. The P4KA11HE3/54 is approved for use in engine control units, body control modules, and other safety-critical automotive subsystems.
What does the HE3 suffix indicate on the P4KA11HE3/54?
The HE3 suffix on the P4KA11HE3/54 denotes RoHS-compliant, high-reliability construction with matte tin-plated leads that meet JESD201 Class 2 whisker resistance requirements. It also confirms compliance with UL 94 V-0 flammability rating for the epoxy molding compound. The P4KA11HE3/54 is designed for long-term reliability in automotive under-hood environments.
Can the P4KA11HE3/54 be used in bidirectional configurations?
No, the P4KA11HE3/54 is available in uni-directional polarity only, as confirmed in the Vishay datasheet. It functions as a single-junction avalanche diode with cathode band marking. For bidirectional transient suppression, a separate device such as the P4SMA11CAHE3/A or dual-diode array would be required - the P4KA11HE3/54 is not internally configured for symmetrical clamping.
What is the maximum junction temperature rating for the P4KA11HE3/54?
The P4KA11HE3/54 has a maximum junction temperature (TJ) rating of +185 °C, enabling operation in high-temperature automotive locations such as near engines or exhaust systems. Its thermal design supports continuous operation up to this limit when mounted with appropriate lead length (≥9.5 mm) and ambient conditions comply with derating curves in Figure 2 of the datasheet. The P4KA11HE3/54 retains full electrical specifications within this range.
P4KA11HE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- PAR®
- Packaging:
- Tape & Reel (TR)
- 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):
- 24.7A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
P4KA11HE3/54 FAQ
1.How can I place an order for P4KA11HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KA11HE3/54 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 P4KA11HE3/54 reliable?
The price and inventory of P4KA11HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KA11HE3/54 is usually 5 days.
3.What payment methods are accepted for P4KA11HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KA11HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KA11HE3/54?
P4KA11HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KA11HE3/54 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 P4KA11HE3/54?
For technical support, including P4KA11HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KA11HE3/54 requirements.
6.How does Aetrix verify that P4KA11HE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KA11HE3/54 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 P4KA11HE3/54 meets industry standards.
7.What is the process for return or replacement of P4KA11HE3/54?
All P4KA11HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KA11HE3/54, 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 P4KA11HE3/54 part is unused and in its original packaging.
Return procedure for P4KA11HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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