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Vishay General Semiconductor - Diodes Division P4KA15HE3/54
- Part No.:
- P4KA15HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KA15HE3/54.pdf
- Description:
- TVS DIODE 12.1VWM 22VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,618
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Product details
Overview
P4KA15HE3/54 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), 13.5–16.3 V breakdown voltage (VBR), and 22.0 V clamping voltage (VC) at 18.2 A peak pulse current. It operates from −65 °C to +185 °C and is AEC-Q101 qualified for engine control units and powertrain electronics.
For engineers reviewing the P4KA15HE3/54 datasheet, P4KA15HE3/54 pinout, P4KA15HE3/54 application, or P4KA15HE3/54 equivalent, this page delivers verified electrical specs, thermal derating behavior, clamping performance under surge, RoHS-compliant packaging, and automotive reliability validation per JESD201 Class 2 whisker test.
Technical Context
The P4KA15HE3/54 uses patented PAR® construction with passivated junction and molded epoxy encapsulation (UL 94 V-0), enabling stable clamping under repetitive transients up to 0.01% duty cycle. Its low incremental surge resistance and fast response time (<1 ns) ensure effective protection of downstream MOSFETs and ICs against inductive switching spikes.
Designed for high-temperature environments, it maintains specified VBR and VC across −65 °C to +185 °C junction range and supports soldering at 260 °C for 40 s. The device exhibits a +0.084 %/°C temperature coefficient of VBR, ensuring predictable voltage drift in under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 400 W - sustains automotive load-dump and ISO 7637-2 pulse 5a surges without failure |
| Breakdown Voltage VBR | 13.5–16.3 V at 1 mA - defines precise conduction onset for 12 V system overvoltage protection |
| Clamping Voltage VC | 22.0 V at 18.2 A - limits voltage seen by protected IC to safe level during full-rated surge |
| Stand-off Voltage VWM | 12.1 V - ensures no leakage or conduction during normal 12 V rail operation |
| Max Reverse Leakage ID | 1.0 µA at VWM, 150 °C - guarantees minimal power loss and signal integrity in hot environments |
| Junction Temperature Range | −65 °C to +185 °C - validated for under-hood placement near engines and transmissions |
| AEC-Q101 Qualification | Qualified - meets stress tests for automotive electronics including temperature cycling and HTRB |
Pinout & Package
DO-204AL (DO-41) molded epoxy package with axial leads; matte tin-plated terminals compliant with J-STD-002 and JESD22-B102; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias | Connected to ground or low-side return path in unidirectional TVS configuration |
| Cathode | Current exit point in forward bias; surge conduction terminal | Connected to protected line (e.g., CAN_H, LIN, sensor supply); clamps to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables uniform current distribution and repeatable clamping across 1000+ surge events |
| 400 W peak pulse rating (10/1000 µs) | Matches ISO 7637-2 Pulse 5a severity level for 12 V vehicle systems |
| AEC-Q101 qualification + JESD201 Class 2 whisker test | Validates long-term reliability in automotive vibration, thermal cycling, and humidity exposure |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes overvoltage margin required for protected ICs' absolute maximum ratings |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed engine bay enclosures and junction boxes |
Applications
| Engine Control Unit (ECU) Power Input Protection | CAN Bus Line Protection |
|---|---|
Use Scenario: Protects ECU 12 V supply rail from load dump transients (up to 60 V, 400 ms) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor. Use Value: Clamps surge to ≤22.0 V within nanoseconds, preventing damage to LDOs and microcontrollers in AEC-Q100 Grade 0 systems. |
Use Scenario: Shields high-speed CAN_H/CAN_L differential pair from ESD and coupled transients in body control modules. IC Role / Device Role / Timing Role: One P4KA15HE3/54 on CAN_H, another on CAN_L, referenced to chassis ground. Use Value: Sub-1 ns response preserves signal integrity up to 1 Mbps while meeting ISO 10605 ESD immunity requirements. |
| Automotive Sensor Supply Protection | Transmission Control Module (TCM) I/O Protection |
Use Scenario: Guards 5 V or 3.3 V sensor supply lines (e.g., MAP, O2, crankshaft position sensors) against back-EMF from solenoid drivers. IC Role / Device Role / Timing Role: TVS placed at sensor harness connector entry point, upstream of local LDO. Use Value: 1.0 µA max leakage at 12.1 V ensures stable bias for precision analog front-ends across temperature. |
Use Scenario: Protects TCM GPIOs and PWM outputs driving shift solenoids and pressure control valves. IC Role / Device Role / Timing Role: Unidirectional clamp on each output line, referenced to battery ground. Use Value: 185 °C max junction temperature rating allows placement near hot transmission housings without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-E3/5A (Vishay) | Same DO-214AC (SMA) package; 400 W rating; VBR = 16.7–18.5 V; VC = 24.4 V at 16.3 A | Surface-mount alternative; lower thermal resistance but requires PCB rework for through-hole replacement | Select when board space is constrained and reflow assembly is available |
| 1.5KE15A (ON Semiconductor) | DO-201AD package; 1500 W rating; VBR = 15.6–17.2 V; VC = 23.2 V at 64.7 A; not AEC-Q101 qualified | Higher power handling but lacks automotive qualification and high-temp reliability validation | Select only for non-automotive industrial use where AEC-Q101 is not mandated |
Compared with SMAJ15A-E3/5A and 1.5KE15A, the P4KA15HE3/54 uniquely combines AEC-Q101 qualification, 185 °C operation, and DO-41 through-hole robustness-making it the only choice for production automotive ECUs requiring zero-layout-change upgrades from legacy TVS diodes.
Availability
P4KA15HE3/54 is available at Aetrix Electronics and suitable for engine control units, CAN bus interfaces, and automotive sensor modules requiring stable component supply with full traceability and automotive-grade compliance.
Supply support for P4KA15HE3/54 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 high-reliability diodes, MOSFETs, and optoelectronics for automotive, industrial, and computing markets.
The P4KA15HE3/54 belongs to Vishay's automotive TVS diode family engineered specifically for under-hood transient suppression-designed to meet AEC-Q101, ISO 7637-2, and ISO 16750-2 requirements without derating.
FAQ
What is the clamping voltage of the P4KA15HE3/54 at its rated peak pulse current?
The P4KA15HE3/54 has a maximum clamping voltage (VC) of 22.0 V at 18.2 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and confirmed in the Electrical Characteristics table on page 2 of Vishay document 88364. The P4KA15HE3/54 maintains this clamping performance across its full operating temperature range.
Is the P4KA15HE3/54 qualified for automotive use?
Yes, the P4KA15HE3/54 is AEC-Q101 qualified and designated as high-reliability/automotive grade (HE3 suffix). It passes stress tests including high-temperature reverse bias (HTRB), temperature cycling, and mechanical shock-validated per the Automotive Transient Voltage Suppressor specification in Vishay document 88364. The P4KA15HE3/54 is approved for use in engine control units, body controllers, and other safety-critical automotive subsystems.
What does the HE3/54 suffix mean in P4KA15HE3/54?
The HE3 suffix indicates RoHS-compliant, high-reliability/automotive-grade construction meeting JESD201 Class 2 whisker resistance, while the /54 denotes the preferred package code for 13" paper tape and reel delivery (5500 units per reel). This ordering format is defined in the Ordering Information section of Vishay document 88364. The P4KA15HE3/54 is supplied in that exact configuration with full traceability.
Can the P4KA15HE3/54 replace older P4KE15A devices in existing designs?
The P4KA15HE3/54 is not a direct drop-in replacement for P4KE15A due to differences in VBR range (P4KA15HE3/54: 13.5–16.3 V; P4KE15A: 14.3–15.8 V), thermal rating (185 °C vs. 175 °C), and qualification (AEC-Q101 vs. commercial). While both use DO-41 packages, layout reuse requires verification of clamping margin and thermal derating. The P4KA15HE3/54 must be validated per ISO 7637-2 in the target application.
What is the maximum junction temperature rating for the P4KA15HE3/54?
The P4KA15HE3/54 has a maximum junction temperature (TJ) rating of +185 °C, as specified in the Maximum Ratings table (page 1) and confirmed in the Operating Junction and Storage Temperature Range parameter. This enables reliable operation in under-hood locations such as near exhaust manifolds or transmission housings. The P4KA15HE3/54 retains full electrical specifications up to this limit per Vishay document 88364.
P4KA15HE3/54 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):
- 12.1V
- Voltage - Breakdown (Min):
- 13.5V
- Voltage - Clamping (Max) @ Ipp:
- 22V
- Current - Peak Pulse (10/1000µs):
- 18.2A
- 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)
P4KA15HE3/54 FAQ
1.How can I place an order for P4KA15HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KA15HE3/54 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 P4KA15HE3/54 reliable?
The price and inventory of P4KA15HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KA15HE3/54 is usually 5 days.
3.What payment methods are accepted for P4KA15HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KA15HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KA15HE3/54?
P4KA15HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KA15HE3/54 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 P4KA15HE3/54?
For technical support, including P4KA15HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KA15HE3/54 requirements.
6.How does Aetrix verify that P4KA15HE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KA15HE3/54 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 P4KA15HE3/54 meets industry standards.
7.What is the process for return or replacement of P4KA15HE3/54?
All P4KA15HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KA15HE3/54, 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 P4KA15HE3/54 part is unused and in its original packaging.
Return procedure for P4KA15HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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