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Vishay General Semiconductor - Diodes Division P4KA43AHE3/54
- Part No.:
- P4KA43AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KA43AHE3/54.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,722
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Product details
Overview
P4KA43AHE3/54 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), 6.7 A peak pulse current, and 59.3 V clamping voltage at IPPM. It features AEC-Q101 qualification, 185 °C max junction temperature, and RoHS-compliant matte tin-plated leads - designed for protecting automotive sensor signal lines and MOSFET gates against inductive switching transients.
For engineers reviewing the P4KA43AHE3/54 datasheet, P4KA43AHE3/54 pinout, P4KA43AHE3/54 application, or P4KA43AHE3/54 equivalent, key selection criteria include breakdown voltage range (40.9–45.2 V), clamping performance under 10/1000 µs surge, thermal stability up to 185 °C, and compliance with automotive reliability standards including JESD201 Class 2 whisker resistance.
Technical Context
This TVS diode employs Vishay's patented PAR® construction for low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of fast-rising transients induced by load dump or relay bounce in 12 V automotive systems. Its unidirectional polarity and DO-204AL package support through-hole mounting with solderability validated per J-STD-002 and JESD22-B102.
The device operates across –65 °C to +185 °C junction temperature, with a 0.101 %/°C temperature coefficient of VBR and <1.0 µA reverse leakage at 36.8 V (VWM) - ensuring stable clamping behavior under high-temperature engine bay conditions and minimal standby power loss in always-on circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 µs) | 400 W - sustains single high-energy transients without failure in automotive load-dump scenarios |
| Breakdown Voltage (VBR) | 40.9 V min / 45.2 V max at 1 mA - defines precise overvoltage triggering threshold for system-level protection |
| Clamping Voltage (VC) | 59.3 V at 6.7 A IPPM - limits downstream IC voltage stress during surge events |
| Stand-off Voltage (VWM) | 36.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA |
| Junction Temperature Range | –65 °C to +185 °C - supports placement near heat sources in engine control units and ADAS modules |
| AEC-Q101 Qualified | Yes - certified for automotive electronic systems requiring high-reliability transient protection |
| Package | DO-204AL (DO-41) - industry-standard axial leaded package with UL 94 V-0 molded epoxy housing |
Pinout & Package
DO-204AL (DO-41) axial-leaded package with cathode indicated by color band. Matte tin-plated leads meet J-STD-002 solderability and JESD201 Class 2 whisker resistance requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to circuit ground or lower-potential rail in unidirectional TVS configuration |
| Cathode | Reverse-biased clamping terminal | Connected to protected line (e.g., sensor output); conducts during overvoltage to clamp voltage |
Key Features
| Feature | Design Value |
|---|---|
| Patented PAR® construction | Reduces incremental surge resistance for tighter clamping and higher energy absorption efficiency |
| 400 W peak pulse power (10/1000 µs) | Meets ISO 7637-2 Pulse 1 & 2b severity levels for 12 V automotive networks |
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock testing |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes voltage overshoot during surge, protecting 40 V-rated components downstream |
| Solder dip 260 °C, 40 s | Ensures robustness during wave soldering and rework without parameter shift or delamination |
Applications
| Automotive Engine Control Unit (ECU) | ADAS Camera Signal Protection |
|---|---|
Use Scenario: Protects microcontroller I/O and CAN transceiver pins from load-dump transients during alternator regulation faults. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp surges above 36.8 V. Use Value: Prevents latch-up or gate oxide damage in 3.3 V/5 V logic interfaces while maintaining signal integrity below VWM. |
Use Scenario: Shields LVDS or analog video signal lines from ESD and switching noise in surround-view camera modules. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ < 100 pF at VWM) placed at connector entry point. Use Value: Clamps transients to ≤59.3 V without distorting high-speed video signals due to fast sub-nanosecond response. |
| Industrial Motor Drive Feedback | Automotive Body Control Module (BCM) |
Use Scenario: Safeguards Hall-effect sensor outputs from inductive kickback when driving solenoids or relays. IC Role / Device Role / Timing Role: Standoff-rated TVS (36.8 V) mounted directly at sensor PCB edge to minimize trace inductance. Use Value: Enables reliable operation at 150 °C ambient with <1 µA leakage, avoiding false triggers in precision analog sensing. |
Use Scenario: Protects LIN bus transceivers and LED driver inputs from battery reverse connection and jump-start spikes. IC Role / Device Role / Timing Role: Unidirectional TVS on power rail input with 185 °C TJ rating for under-hood BCM placement. Use Value: Survives 40 A IFSM surge (8.3 ms half-sine) without degradation, supporting long-term field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43AHE3/52 | Same VBR/VWM/VC specs but in SMB (DO-214AA) surface-mount package; 600 W PPPM rating | Requires PCB redesign for SMT vs. through-hole; better suited for space-constrained modules | Select when board area is limited and automated assembly is preferred over manual THT insertion |
| 1.5KE43A | Higher 1500 W PPPM rating, same DO-204AL package, but not AEC-Q101 qualified; 175 °C TJ max | Lacks automotive qualification; suitable for industrial/commercial environments only | Choose for cost-sensitive non-automotive designs where extended surge margin outweighs qualification needs |
Compared with SMBJ43AHE3/52 and 1.5KE43A, the P4KA43AHE3/54 uniquely combines AEC-Q101 qualification, 185 °C junction rating, and DO-204AL through-hole compatibility - making it the only option qualified for under-hood automotive deployment without layout change or derating.
Availability
P4KA43AHE3/54 is available at Aetrix Electronics and suitable for automotive engine control units, ADAS camera modules, industrial motor feedback systems, and body control modules requiring stable component supply with full traceability and long-lifecycle support.
Supply support for P4KA43AHE3/54 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 diodes, rectifiers, and protection devices with emphasis on reliability, thermal performance, and automotive qualification.
The P4KA43AHE3/54 belongs to Vishay's automotive-grade TVS diode family engineered specifically for harsh-environment transient suppression in 12 V and 24 V vehicle electrical systems - targeting ECU, sensor, and communication interface protection.
FAQ
What is the clamping voltage of the P4KA43AHE3/54 at its rated peak pulse current?
The P4KA43AHE3/54 has a maximum clamping voltage (VC) of 59.3 V at 6.7 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value ensures that protected downstream components experience no more than 59.3 V during surge events, critical for safeguarding 40 V-rated ICs in automotive applications. The clamping performance is guaranteed across the full operating temperature range up to 185 °C junction temperature.
Is the P4KA43AHE3/54 suitable for automotive applications requiring AEC-Q101 qualification?
Yes, the P4KA43AHE3/54 is explicitly AEC-Q101 qualified, as confirmed in Vishay document 88364. It undergoes rigorous stress testing including temperature cycling, high-temperature operating life, and mechanical shock - meeting automotive reliability requirements for under-hood and chassis-mounted electronics. The HE3 suffix further indicates RoHS compliance and high-reliability process control.
What is the standoff voltage (VWM) and reverse leakage specification for the P4KA43AHE3/54?
The P4KA43AHE3/54 has a standoff voltage (VWM) of 36.8 V, meaning it remains non-conductive up to this reverse voltage. At VWM and TA = 25 °C, reverse leakage current is ≤1.0 µA; at TJ = 150 °C, leakage remains ≤5.0 µA. This low leakage ensures minimal power loss in always-on automotive circuits while maintaining robust overvoltage detection margin.
Does the P4KA43AHE3/54 have a unidirectional or bidirectional configuration?
The P4KA43AHE3/54 is a unidirectional TVS diode only, as stated in the Vishay datasheet. Its polarity is marked by a cathode band, and it functions as a reverse-biased avalanche device - conducting only when the cathode voltage exceeds the anode by more than the breakdown threshold. Bidirectional variants are not offered in the P4KAxxA series.
What package type and lead finish does the P4KA43AHE3/54 use?
The P4KA43AHE3/54 uses the DO-204AL (DO-41) axial-leaded package with matte tin-plated leads. This finish complies with J-STD-002 for solderability and passes JESD201 Class 2 whisker resistance testing. The package is UL 94 V-0 rated and supports wave soldering at 260 °C for 40 seconds without parameter degradation.
P4KA43AHE3/54 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):
- 36.8V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.3V
- Current - Peak Pulse (10/1000µs):
- 6.7A
- 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)
P4KA43AHE3/54 FAQ
1.How can I place an order for P4KA43AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KA43AHE3/54 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 P4KA43AHE3/54 reliable?
The price and inventory of P4KA43AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KA43AHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KA43AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KA43AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KA43AHE3/54?
P4KA43AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KA43AHE3/54 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 P4KA43AHE3/54?
For technical support, including P4KA43AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KA43AHE3/54 requirements.
6.How does Aetrix verify that P4KA43AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KA43AHE3/54 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 P4KA43AHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KA43AHE3/54?
All P4KA43AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KA43AHE3/54, 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 P4KA43AHE3/54 part is unused and in its original packaging.
Return procedure for P4KA43AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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