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Vishay General Semiconductor - Diodes Division P6KA43AHE3/54
- Part No.:
- P6KA43AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KA43AHE3/54.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,167
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Product details
Overview
P6KA43AHE3/54 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for primary overvoltage protection of sensitive electronics against inductive switching transients and lightning surges. It features a 36.8 V stand-off voltage (VWM), 40.9–45.2 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 μs), 10.1 A peak pulse current (IPPM), and 59.3 V clamping voltage (VC) - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the P6KA43AHE3/54 datasheet, P6KA43AHE3/54 pinout, P6KA43AHE3/54 application, or P6KA43AHE3/54 equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction rating, DO-15 package compatibility, and verified clamping performance under repetitive 10/1000 μs surge conditions.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to achieve low incremental surge resistance and fast response time (<1 ns), enabling effective suppression of fast-rising transients before downstream ICs or MOSFETs are damaged. Its unidirectional polarity and 36.8 V stand-off support DC-biased protection in 24 V automotive and industrial power systems.
The device operates across –65 °C to +185 °C, with thermal derating defined up to 175 °C ambient, and maintains stable VBR temperature coefficient (0.101 %/°C) - critical for robustness in under-hood and factory-floor environments where thermal cycling is severe.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Stand-off Voltage (VWM) | 36.8 V - maximum continuous reverse voltage before leakage exceeds 1 μA; sets operating margin for 24 V nominal systems. |
| Breakdown Voltage (VBR) | 40.9–45.2 V at 1 mA - defines onset of avalanche conduction; ensures reliable triggering above normal operating voltage. |
| Clamping Voltage (VC) | 59.3 V at 10.1 A (10/1000 μs) - limits transient voltage seen by protected circuit; enables safe operation of 48 V-rated components. |
| Peak Pulse Power (PPPM) | 600 W - sustains standardized 10/1000 μs surge without failure; validated per ANSI/IEEE C62.35. |
| Junction Temperature (TJ) | –65 °C to +185 °C - supports AEC-Q101 automotive qualification and high-reliability industrial deployment. |
| Package | DO-204AC (DO-15) - industry-standard axial leaded package with matte tin-plated leads, UL 94 V-0 molding compound. |
Pinout & Package
DO-204AC (DO-15) package: axial-leaded, molded epoxy case with cathode indicated by color band. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102, and qualified to JESD 201 Class 2 whisker test.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration. |
| Cathode | Avalanche conduction terminal | Marked with color band; connected to protected line (e.g., 24 V rail or signal input) to clamp positive transients. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - required for ECU and ADAS module integration. |
| 185 °C maximum junction temperature | Enables operation in high-ambient environments (e.g., engine bay, motor drives) without thermal shutdown or parameter drift. |
| 600 W peak pulse power (10/1000 μs) | Meets ISO 7637-2 Pulse 1, 2a, and 5a immunity requirements for 12 V/24 V vehicle networks. |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes overvoltage stress during surge events - critical for protecting 48 V-tolerant microcontrollers and CAN transceivers. |
| Passivated anisotropic rectifier structure | Delivers consistent avalanche behavior and low dynamic impedance (<0.5 Ω typical), improving energy absorption repeatability. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs of body control modules (BCMs) and lighting drivers against load dump and alternator ripple. IC Role / Device Role / Timing Role: Primary unidirectional TVS placed upstream of DC-DC converters and LDOs to limit transient voltage to ≤59.3 V. Use Value: Prevents latch-up and gate oxide damage in downstream PMICs and microcontrollers during ISO 16750-2 load dump events. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA current loops) of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Fast-response shunt protector on sensor output lines, triggered within <1 ns to divert surge energy to ground. Use Value: Maintains signal integrity and avoids false readings or sensor reset during EFT bursts per IEC 61000-4-4 Level 4. |
| Telecom DC Power Interface | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding PoE-powered Ethernet switches and base station RF amplifiers from lightning-induced surges on 48 V DC feeds. IC Role / Device Role / Timing Role: Standoff-rated TVS on DC input stage, clamping transients before they reach isolation transformers and DC-DC controllers. Use Value: Enables compliance with ITU-T K.20/21 telecom surge immunity standards without adding bulkier MOV-based solutions. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Unidirectional TVS across motor terminals to absorb inductive kickback during PWM switching. Use Value: Extends relay and MOSFET lifetime by limiting VDS overshoot to <60 V, reducing avalanche stress and thermal runaway risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A-E3/57 | Same VWM (36.8 V), identical DO-214AC (SMA) package; 10% lower IPPM (9.1 A) and higher VC (64.8 V). | Surface-mount alternative for space-constrained PCBs; requires rework of footprint and thermal relief design. | Select when board area is limited and SMT assembly is preferred over through-hole DO-15. |
| 1.5KE43A | Same VBR range and DO-201AD package; 1.5 kW PPPM rating but larger size (4.5 mm diameter); no AEC-Q101 qualification. | Higher-power legacy alternative for non-automotive industrial use; lacks automotive reliability validation. | Choose only for cost-sensitive, non-automotive applications where 1.5 kW surge margin is mandatory and qualification is not required. |
Compared with SMAJ43A-E3/57 and 1.5KE43A, the P6KA43AHE3/54 delivers AEC-Q101 assurance and optimal thermal performance in DO-15 form factor - making it the preferred choice for automotive and high-reliability industrial designs requiring proven long-term stability at 185 °C.
Availability
P6KA43AHE3/54 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power systems requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for P6KA43AHE3/54 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 P6KA43AHE3/54 belongs to Vishay's PAR® series of high-temperature TVS diodes, engineered specifically for harsh-environment overvoltage protection in automotive, industrial, and telecom infrastructure applications.
FAQ
What is the maximum clamping voltage of the P6KA43AHE3/54 under standard surge conditions?
The P6KA43AHE3/54 exhibits a maximum clamping voltage (VC) of 59.3 V when subjected to a 10.1 A peak pulse current with a 10/1000 μs waveform at TA = 25 °C. This value is measured per ANSI/IEEE C62.35 and ensures predictable overvoltage limiting for downstream 48 V-tolerant components. The P6KA43AHE3/54 maintains this clamping performance across its full operating temperature range.
Is the P6KA43AHE3/54 qualified for automotive applications?
Yes, the P6KA43AHE3/54 is AEC-Q101 qualified and rated for junction temperatures up to +185 °C - meeting stringent automotive reliability requirements for engine control, body electronics, and ADAS subsystems. Its DO-15 package meets JESD 201 Class 2 whisker resistance, and all electrical parameters are validated across the full automotive temperature range (–40 °C to +125 °C ambient).
What does the "HE3/54" suffix indicate in P6KA43AHE3/54?
The "HE3" suffix denotes RoHS-compliant, matte tin-plated leads qualified to JESD 201 Class 2 for whisker resistance, while "/54" specifies the packaging format: 4000 units per 13-inch paper tape and reel. This ordering code ensures consistent lead finish, solderability per J-STD-002, and automated placement compatibility - critical for high-volume automotive manufacturing.
How does the P6KA43AHE3/54 differ from the P6KA43 variant?
The P6KA43AHE3/54 has tighter VBR tolerance (40.9–45.2 V vs. 38.7–47.3 V for P6KA43) and lower maximum reverse leakage (1.0 μA at VWM vs. 5.0 μA), resulting in improved consistency and lower standby power loss. Both share identical package, power rating, and AEC-Q101 qualification, but the "A" grade offers enhanced parametric control for precision protection circuits.
Can the P6KA43AHE3/54 be used in bidirectional configurations?
No, the P6KA43AHE3/54 is unidirectional only, as explicitly stated in its datasheet features and mechanical data. It protects against positive transients on a DC-biased line (cathode to line, anode to ground). For bidirectional AC or dual-polarity signal line protection, a separate pair of unidirectional devices or a dedicated bidirectional TVS (e.g., P6SMB43CA) must be used - the P6KA43AHE3/54 does not support reverse conduction.
P6KA43AHE3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, 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):
- 10.1A
- Power - Peak Pulse:
- 600W
- 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-204AC (DO-15)
P6KA43AHE3/54 FAQ
1.How can I place an order for P6KA43AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KA43AHE3/54 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 P6KA43AHE3/54 reliable?
The price and inventory of P6KA43AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KA43AHE3/54 is usually 5 days.
3.What payment methods are accepted for P6KA43AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KA43AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KA43AHE3/54?
P6KA43AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KA43AHE3/54 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 P6KA43AHE3/54?
For technical support, including P6KA43AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KA43AHE3/54 requirements.
6.How does Aetrix verify that P6KA43AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P6KA43AHE3/54 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 P6KA43AHE3/54 meets industry standards.
7.What is the process for return or replacement of P6KA43AHE3/54?
All P6KA43AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KA43AHE3/54, 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 P6KA43AHE3/54 part is unused and in its original packaging.
Return procedure for P6KA43AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KA43AHE3/54 Tags
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