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Vishay General Semiconductor - Diodes Division P4KA30AHE3/54
- Part No.:
- P4KA30AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KA30AHE3/54.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,869
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Product details
Overview
P4KA30AHE3/54 from Vishay General Semiconductor is a unidirectional automotive-grade transient voltage suppressor (TVS) diode in DO-204AL (DO-41) package, with 30 V nominal breakdown voltage (28.5–31.5 V), 400 W peak pulse power (10/1000 µs), 41.4 V clamping voltage at 9.7 A, 1.5 W steady-state power dissipation, and AEC-Q101 qualification for engine control units and powertrain electronics.
For engineers reviewing the P4KA30AHE3/54 datasheet, P4KA30AHE3/54 pinout, P4KA30AHE3/54 application, or P4KA30AHE3/54 equivalent, this page delivers verified electrical specs, automotive reliability context, DO-41 terminal mapping, clamping performance under surge conditions, and direct alternatives for ESD/surge protection in 12 V/24 V vehicle subsystems.
Technical Context
This TVS diode uses Vishay's patented PAR® construction for stable clamping under high-temperature operation up to +185 °C junction temperature and exhibits low incremental surge resistance for consistent voltage limiting during repetitive transients. Its unidirectional polarity and 1.0 V standoff voltage margin ensure compatibility with standard 30 V rail protection schemes.
The device meets ANSI/IEEE C62.35 standards for surge suppression and is rated for 40 A non-repetitive forward surge current (8.3 ms half-sine), enabling robust protection against load-dump and inductive switching events in automotive power networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 28.5–31.5 V at 1 mA - defines minimum clamping threshold before conduction begins |
| Clamping Voltage (VC) | 41.4 V at 9.7 A (10/1000 µs) - maximum voltage seen by protected circuit during worst-case surge |
| Peak Pulse Power (PPPM) | 400 W - sustains 10/1000 µs surges without degradation under 0.01% duty cycle |
| Steady-State Power (PD) | 1.5 W - continuous dissipation capability on infinite heatsink at 75 °C lead temperature |
| Operating Temperature | −65 °C to +185 °C - supports under-hood placement in engine control modules |
| AEC-Q101 Qualified | Yes - validated for automotive reliability including temperature cycling, HTRB, and ESD testing |
| RoHS Compliant | Yes - HE3 suffix denotes RoHS-compliant, high-reliability, whisker-tested matte tin leads |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, molded epoxy case with UL 94 V-0 rating; cathode indicated by color band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during reverse-biased clamping | Connected to protected line (e.g., 12 V supply rail); conducts only when VIN exceeds VBR |
| Cathode | Current exit point during clamping; marked by band | Connected to ground reference; establishes unidirectional clamping path to sink surge energy |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Enables stable VBR drift ≤ ±5% over 1000 h at 150 °C, critical for long-life automotive modules |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream MOSFETs and microcontrollers during transients |
| 185 °C max junction temperature | Supports placement near heat sources (e.g., ignition coils, DC-DC converters) without derating |
| JESD201 Class 2 whisker resistance | Prevents tin whisker growth in high-vibration environments, eliminating latent short-circuit risk |
| 400 W 10/1000 µs pulse rating | Meets ISO 7637-2 Pulse 1, 2a, 3a/b and SAE J1113-11 surge immunity requirements |
Applications
| Engine Control Unit Protection | Body Control Module Inputs |
|---|---|
Use Scenario: Protecting MCU I/O and sensor interfaces in engine control units exposed to alternator load dump and starter motor kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 12 V supply rail and chassis ground to clamp transients before they reach power management ICs. Use Value: Limits voltage to ≤41.4 V during 9.7 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V logic circuits powered from buck regulators. |
Use Scenario: Safeguarding LIN bus receivers and switch inputs in body control modules subjected to cable harness ESD and relay bounce. IC Role / Device Role / Timing Role: Standoff voltage of 25.6 V ensures no conduction during normal 12 V system operation while responding within <1 ns to fast transients. Use Value: Maintains signal integrity on 12 V analog sensor lines (e.g., ambient temperature, door position) with <1 µA leakage at 25.6 V. |
| Powertrain Actuator Drivers | Infotainment Power Rails |
Use Scenario: Shielding high-side driver ICs controlling fuel injectors and throttle valves from inductive kickback in 24 V commercial vehicle systems. IC Role / Device Role / Timing Role: Mounted directly at connector entry point to divert >40 A surge currents away from driver output stages. Use Value: Withstands 40 A 8.3 ms half-sine surge (IEC 61000-4-5 Level 4) without parametric shift or failure. |
Use Scenario: Suppressing conducted noise on 5 V/3.3 V power rails feeding infotainment head units connected to vehicle battery via long harnesses. IC Role / Device Role / Timing Role: Paired with ceramic capacitors to form low-impedance shunt path for high-frequency transients (>100 kHz). Use Value: Junction capacitance <100 pF at VWM avoids signal distortion on USB or audio lines sharing adjacent PCB traces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A-E3/5A | Same DO-214AC (SMA) package; 30 V VBR, 400 W PPPM, but lower IPPM (9.2 A) and higher VC (48.4 V) | Less effective clamping margin for 3.3 V logic; suited for board-level secondary protection where space is constrained | Select when footprint reduction is prioritized over lowest possible clamping voltage |
| 1.5KE30A | DO-201AD package; same VBR range and PPPM, but not AEC-Q101 qualified and higher VC (49.0 V) | Lacks automotive qualification; suitable for industrial/commercial power supplies but not safety-critical vehicle ECUs | Choose for cost-sensitive non-automotive designs where AEC-Q101 is not mandated |
Compared with SMAJ30A-E3/5A and 1.5KE30A, the P4KA30AHE3/54 delivers superior clamping (41.4 V vs. ≥48.4 V), guaranteed automotive qualification, and lower thermal resistance due to DO-41's axial lead geometry-making it the preferred choice for primary surge protection in AEC-Q101-compliant systems.
Availability
P4KA30AHE3/54 is available at Aetrix Electronics and suitable for engine control units, body control modules, powertrain actuator drivers, and infotainment power rails requiring stable component supply across automotive production lifecycles.
Supply support for P4KA30AHE3/54 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 P4KA30AHE3/54 belongs to Vishay's automotive TVS diode family designed specifically for AEC-Q101-compliant transient suppression in 12 V/24 V vehicle electrical systems, emphasizing high-temperature stability and repeatable clamping performance.
FAQ
What is the exact breakdown voltage range for P4KA30AHE3/54?
The P4KA30AHE3/54 has a guaranteed breakdown voltage range of 28.5 V to 31.5 V at 1 mA test current, per the Vishay datasheet revision 21-Oct-08. This tighter tolerance (±5%) versus standard P4KA30 (±10%) reflects its "A" variant designation and supports precise overvoltage threshold design in automotive control modules where margin to downstream IC absolute maximum ratings is critical. The P4KA30AHE3/54 maintains this specification across −65 °C to +150 °C.
Is P4KA30AHE3/54 suitable for 24 V commercial vehicle systems?
Yes, the P4KA30AHE3/54 is suitable for 24 V commercial vehicle systems. Its 25.6 V standoff voltage provides adequate margin above nominal 24 V rails, and its 41.4 V clamping voltage remains well below the 48 V absolute maximum rating of most 24 V-rated power management ICs. The device's 185 °C junction rating and AEC-Q101 qualification ensure reliability in under-hood environments common in trucks and buses where ambient temperatures exceed 105 °C.
Does P4KA30AHE3/54 have bidirectional polarity?
No, the P4KA30AHE3/54 is unidirectional only, as explicitly stated in the Vishay datasheet. It conducts current only when the cathode is positive relative to the anode-making it appropriate for protecting positive supply rails referenced to ground. For AC line or data-line protection requiring symmetrical clamping, a bidirectional variant (e.g., P4SMA30A) or paired unidirectional devices would be required instead of the P4KA30AHE3/54.
What does the "HE3/54" suffix mean in P4KA30AHE3/54?
The "HE3/54" suffix in P4KA30AHE3/54 indicates RoHS-compliant, high-reliability construction (HE3) and packaging in 13-inch paper tape and reel with 5500 units per reel (54). The HE3 designation confirms matte tin-plated leads compliant with J-STD-002 and JESD22-B102 solderability standards, plus JESD201 Class 2 whisker resistance-key requirements for automotive production. The P4KA30AHE3/54 is not a different electrical variant; it is the qualified packaging format of the P4KA30A device.
How does P4KA30AHE3/54 compare to P4KA30 in terms of clamping performance?
The P4KA30AHE3/54 clamps at 41.4 V (at 9.7 A, 10/1000 µs), while the standard P4KA30 clamps at 43.5 V (at 9.2 A). This 2.1 V lower clamping voltage-combined with tighter VBR tolerance (±5% vs. ±10%)-gives the P4KA30AHE3/54 improved protection margin for sensitive 3.3 V or 5 V logic powered from regulated 12 V supplies. Both share identical package, power rating, and AEC-Q101 qualification, but the "A" variant delivers enhanced consistency for high-volume automotive designs.
P4KA30AHE3/54 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 9.7A
- 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)
P4KA30AHE3/54 FAQ
1.How can I place an order for P4KA30AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KA30AHE3/54 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 P4KA30AHE3/54 reliable?
The price and inventory of P4KA30AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KA30AHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KA30AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KA30AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KA30AHE3/54?
P4KA30AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KA30AHE3/54 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 P4KA30AHE3/54?
For technical support, including P4KA30AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KA30AHE3/54 requirements.
6.How does Aetrix verify that P4KA30AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KA30AHE3/54 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 P4KA30AHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KA30AHE3/54?
All P4KA30AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KA30AHE3/54, 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 P4KA30AHE3/54 part is unused and in its original packaging.
Return procedure for P4KA30AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KA30AHE3/54 Tags
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