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Vishay General Semiconductor - Diodes Division P4KA30HE3/54
- Part No.:
- P4KA30HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KA30HE3/54.pdf
- Description:
- TVS DIODE 24.3VWM 43.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,374
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Product details
Overview
P4KA30HE3/54 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), 27.0–33.0 V breakdown voltage (VBR), and 43.5 V clamping voltage (VC) at 9.2 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 P4KA30HE3/54 datasheet, P4KA30HE3/54 pinout, P4KA30HE3/54 application, or P4KA30HE3/54 equivalent, this page delivers verified electrical specs, automotive reliability validation, clamping performance under ISO 7637-2 pulses, and direct substitution guidance for 27–33 V rail protection in harsh-environment ECUs.
Technical Context
The P4KA30HE3/54 employs Vishay's patented PAR® construction for stable high-temperature operation up to 185 °C junction temperature, enabling use in under-hood automotive modules where thermal derating of standard TVS devices occurs. Its low incremental surge resistance and fast response time (<1 ns) ensure effective suppression of load-dump transients per ISO 7637-2 Pulse 5a.
Designed exclusively as a unidirectional device with cathode band marking, it provides precise stand-off voltage (VWM = 24.3 V), reverse leakage <1 µA at VWM, and 0.097 %/°C VBR temperature coefficient - critical for maintaining margin between operating voltage and clamping threshold across wide ambient ranges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 400 W - sustains ISO 7637-2 load-dump surges without degradation |
| Breakdown Voltage VBR | 27.0–33.0 V at 1.0 mA - defines minimum overvoltage threshold before conduction |
| Clamping Voltage VC | 43.5 V at 9.2 A IPPM - limits downstream IC voltage during worst-case transient |
| Stand-off Voltage VWM | 24.3 V - maximum continuous DC or RMS voltage applied without leakage >1 µA |
| Junction Temperature Range | −65 °C to +185 °C - supports AEC-Q101 qualification for powertrain and chassis systems |
| Surge Current IFSM | 40 A (8.3 ms half-sine) - withstands repetitive motor-switching surges in body control modules |
| Package | DO-204AL (DO-41) - industry-standard through-hole footprint compatible with legacy PCB layouts |
Pinout & Package
DO-204AL (DO-41) molded epoxy package with matte tin-plated leads; cathode denoted by color band. Leads solderable per J-STD-002 and JESD22-B102; passes JESD201 Class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection to protected circuit ground | Reference node for clamping; must be routed with minimal inductance to maintain response speed |
| Cathode | High-side connection to protected line (e.g., 24 V battery rail) | Marked by color band; carries full surge current during transient events |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables stable VBR and low dynamic impedance at 185 °C junction temperature |
| AEC-Q101 qualification | Validated for automotive powertrain applications including engine control and transmission modules |
| 400 W peak pulse rating (10/1000 µs) | Meets ISO 7637-2 Pulse 5a requirements for 24 V system load-dump protection |
| Low clamping ratio (VC/VBR ≈ 1.54) | Minimizes voltage overshoot on protected 24 V rails during fast transients |
| RoHS-compliant HE3 suffix | Meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability for safety-critical modules |
Applications
| Engine Control Unit (ECU) Power Input Protection | Transmission Control Module (TCM) Sensor Line Clamping |
|---|---|
Use Scenario: Protects microcontroller power supply against load-dump transients (ISO 7637-2 Pulse 5a) generated during alternator field collapse in 24 V diesel engines. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between battery rail and input filter capacitor, clamping voltage within safe margin of 3.3 V/5 V regulator input ratings. Use Value: Prevents latch-up or permanent damage to MCU and CAN transceivers during repeated cold-cranking and load-dump events. |
Use Scenario: Shields analog sensor signal lines (e.g., gear position sensors) from ESD and switching noise induced by solenoid drivers in automatic transmissions. IC Role / Device Role / Timing Role: Low-capacitance TVS placed at connector interface, suppressing sub-100 ns transients while preserving signal integrity up to 1 MHz bandwidth. Use Value: Maintains accurate sensor reporting under ESD stress (IEC 61000-4-2 ±8 kV contact) without signal distortion or false fault detection. |
| Body Control Module (BCM) LIN Bus Protection | Electric Power Steering (EPS) Motor Driver Stage |
Use Scenario: Guards LIN bus transceiver pins against coupled transients from adjacent 12 V loads (e.g., window lift motors) in door modules. IC Role / Device Role / Timing Role: Unidirectional TVS connected between LIN line and ground, with VWM = 24.3 V ensuring no interference during normal 12 V bus operation. Use Value: Enables robust communication during EMC testing (ISO 11452-4) without bus reset or frame loss. |
Use Scenario: Suppresses inductive kickback from H-bridge MOSFETs driving 24 V steering assist motors during PWM commutation. IC Role / Device Role / Timing Role: High-energy TVS mounted directly across motor terminals, absorbing 400 W pulses with <1 ns response to prevent MOSFET avalanche failure. Use Value: Extends MOSFET lifetime in EPS systems subjected to 10,000+ thermal cycles per vehicle lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ28A-E3/52 (Vishay) | Surface-mount SMB package; 28 V VBR min; 400 W rating; same AEC-Q101 qualification | Requires PCB redesign for SMD layout; lower thermal resistance in reflow assembly | Select when migrating to automated SMT production or space-constrained modules |
| 1.5KE33A (ON Semiconductor) | Through-hole DO-201AD package; 33 V VBR; 1500 W rating; no AEC-Q101 qualification | Higher clamping (53.3 V) and non-automotive qualification limit use to industrial/commercial systems | Select only for cost-sensitive non-automotive applications where 185 °C operation is not required |
Compared with SMBJ28A-E3/52, P4KA30HE3/54 offers identical automotive reliability in a through-hole format for legacy serviceability; versus 1.5KE33A, it delivers guaranteed AEC-Q101 compliance and tighter VBR tolerance for precision 24 V rail protection.
Availability
P4KA30HE3/54 is available at Aetrix Electronics and suitable for engine control units, transmission control modules, and electric power steering systems requiring stable component supply under AEC-Q101 automotive qualification and extended temperature operation.
Supply support for P4KA30HE3/54 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 with emphasis on reliability, power handling, and automotive qualification.
The P4KA30HE3/54 belongs to Vishay's automotive TVS diode family engineered specifically for ISO 7637-2 and ISO 16750-2 compliance in 12 V/24 V vehicle electrical systems.
FAQ
What is the exact breakdown voltage range for P4KA30HE3/54?
The P4KA30HE3/54 has a specified breakdown voltage (VBR) range of 27.0 V to 33.0 V measured at 1.0 mA test current, per Vishay document 88364. This range ensures reliable triggering above nominal 24 V system voltage while maintaining sufficient margin below downstream IC absolute maximum ratings. The P4KA30HE3/54 achieves this using patented PAR® construction for tight parametric consistency across temperature.
Is P4KA30HE3/54 qualified for automotive applications?
Yes, the P4KA30HE3/54 is AEC-Q101 qualified and designated as high-reliability automotive grade (HE3 suffix). It meets requirements for operation up to +185 °C junction temperature and passes JESD201 Class 2 whisker testing. The P4KA30HE3/54 is explicitly intended for engine control, transmission, and chassis modules subject to ISO 7637-2 and ISO 16750-2 stress profiles.
What is the clamping voltage of P4KA30HE3/54 at its rated peak pulse current?
The P4KA30HE3/54 clamps to a maximum of 43.5 V at its rated peak pulse current (IPPM) of 9.2 A, defined by the 10/1000 µs waveform. This clamping voltage is measured under standardized test conditions and represents the upper voltage limit imposed on protected circuitry during worst-case transients. The P4KA30HE3/54 maintains this performance across its full operating temperature range.
Does P4KA30HE3/54 have bidirectional polarity?
No, the P4KA30HE3/54 is available in uni-directional polarity only, with cathode identified by a color band. It is designed to protect positive-rail circuits (e.g., 24 V battery lines) against overvoltage transients relative to ground. Bidirectional variants are not offered in the P4KA30HE3/54 family; alternative part numbers would be required for AC or dual-rail protection.
What package type does P4KA30HE3/54 use and what are its key mechanical features?
The P4KA30HE3/54 uses the DO-204AL (DO-41) axial-leaded package with molded epoxy encapsulation meeting UL 94 V-0 flammability rating. Its leads are matte tin-plated and compliant with J-STD-002 and JESD22-B102 solderability standards. The P4KA30HE3/54 also satisfies JESD201 Class 2 whisker resistance, making it suitable for high-reliability automotive solder joints.
P4KA30HE3/54 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):
- 24.3V
- Voltage - Breakdown (Min):
- 27V
- Voltage - Clamping (Max) @ Ipp:
- 43.5V
- Current - Peak Pulse (10/1000µs):
- 9.2A
- 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)
P4KA30HE3/54 FAQ
1.How can I place an order for P4KA30HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KA30HE3/54 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 P4KA30HE3/54 reliable?
The price and inventory of P4KA30HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KA30HE3/54 is usually 5 days.
3.What payment methods are accepted for P4KA30HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KA30HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KA30HE3/54?
P4KA30HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KA30HE3/54 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 P4KA30HE3/54?
For technical support, including P4KA30HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KA30HE3/54 requirements.
6.How does Aetrix verify that P4KA30HE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KA30HE3/54 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 P4KA30HE3/54 meets industry standards.
7.What is the process for return or replacement of P4KA30HE3/54?
All P4KA30HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KA30HE3/54, 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 P4KA30HE3/54 part is unused and in its original packaging.
Return procedure for P4KA30HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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