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Vishay General Semiconductor - Diodes Division P6KA43AHE3/73
- Part No.:
- P6KA43AHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KA43AHE3/73.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,313
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Product details
Overview
P6KA43AHE3/73 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 36.8 V stand-off voltage (VWM), 40.9–45.2 V breakdown range (VBR), 600 W peak pulse power (10/1000 μs), 10.1 A peak pulse current (IPPM), and 59.3 V clamping voltage (VC) - enabling reliable surge suppression in automotive and industrial control circuits.
For engineers reviewing the P6KA43AHE3/73 datasheet, P6KA43AHE3/73 pinout, P6KA43AHE3/73 application, or P6KA43AHE3/73 equivalent, key selection criteria include its AEC-Q101 qualification, 185 °C junction rating, DO-204AC (DO-15) package compatibility, and verified clamping performance under repetitive 10/1000 μs transients.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology to achieve low incremental surge resistance and excellent clamping linearity during fast-rising transients. Its unidirectional polarity and 1.0 mA test current ensure stable breakdown behavior across temperature extremes.
The device operates with a maximum reverse leakage of 1.0 μA at VWM (36.8 V) and 5.0 μA at TJ = 150 °C, supporting high-reliability operation in harsh environments. Its 3.5 V forward voltage at 50 A confirms low conduction loss during surge events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36.8 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 40.9 V / 45.2 V - Breakdown occurs within this range at 1.0 mA, ensuring predictable turn-on |
| VC @ IPPM | 59.3 V - Clamped voltage at 10.1 A peak pulse, limiting downstream stress |
| PPPM | 600 W - Sustains 10/1000 μs surges without degradation, per IEC 61000-4-5 |
| TJ max | +185 °C - Enables use in under-hood automotive and high-temperature industrial enclosures |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress-test requirements |
| Package | DO-204AC (DO-15) - Industry-standard axial leaded package with UL 94 V-0 molding |
Pinout & Package
Package: DO-204AC (DO-15), axial-leaded, epoxy-molded case with cathode band marking. Matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Surge return path | Connected to ground or low-impedance reference in unidirectional clamp configuration |
| Cathode | Reverse-biased terminal / Clamping node | Connected to protected line; conducts during overvoltage to shunt energy to ground |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR and low leakage over lifetime |
| High-temperature operation | Rated to +185 °C junction temperature supports engine bay and industrial motor drive placement |
| Fast response time | Sub-nanosecond turn-on enables protection against ESD and switching-induced transients |
| Low incremental surge resistance | Minimizes VC rise under high-current surges, improving system-level immunity margin |
| Solderability & reliability | Matte tin leads pass JESD 22-B102, JESD 22-B106 (275 °C/10 s), and JESD 201 Class 2 |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs and body control modules from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp transients above 36.8 V. Use Value: Withstands 600 W surges and maintains <1.0 μA leakage at 36.8 V, preserving sleep-mode current budgets. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) in PLC I/O modules exposed to field wiring noise. IC Role / Device Role / Timing Role: Signal-line TVS on 4–20 mA or 0–10 V channels, referenced to local ground. Use Value: 59.3 V clamping at 10.1 A limits induced voltage on precision ADC inputs, preventing saturation or latch-up. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Guarding AC/DC adapter outputs feeding base station radios and PoE-powered devices. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side 48 V rails subjected to lightning-induced surges. Use Value: AEC-Q101 qualification and 185 °C rating allow deployment in sealed outdoor telecom enclosures without derating. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Across-the-line TVS on motor terminals to absorb back-EMF during MOSFET commutation. Use Value: 75 A non-repetitive surge rating (IFSM) handles repeated motor start-stop cycles without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36AHE3/52 | Same DO-214AA package; lower PPPM (600 W same), but higher VWM (36 V vs. 36.8 V) and VC (58.1 V) | Designed for PCB space-constrained layouts; lacks AEC-Q101 qualification | Select when board area is limited and automotive qualification is not required |
| 1.5KE43A | Higher VWM (36.8 V same), but larger DO-201AD package, lower thermal mass, and no AEC-Q101 validation | Legacy through-hole design; suited for prototyping or non-automotive production | Choose only if DO-204AC footprint compatibility is not mandatory and qualification is secondary |
Compared with SMBJ36AHE3/52 and 1.5KE43A, the P6KA43AHE3/73 offers AEC-Q101 qualification, DO-204AC form factor, and tighter VBR tolerance (40.9–45.2 V), making it the preferred choice for automotive and high-reliability industrial deployments where long-term stability and standardized testing matter.
Availability
P6KA43AHE3/73 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom power supplies, and consumer appliance motor drives requiring stable component supply and full traceability.
Supply support for P6KA43AHE3/73 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 and high-temperature performance.
The P6KA43AHE3/73 belongs to Vishay's PAR® TVS family, engineered specifically for automotive-grade transient suppression in demanding power and signal line applications.
FAQ
What is the clamping voltage of the P6KA43AHE3/73 under a 10/1000 μs surge?
The P6KA43AHE3/73 has a maximum clamping voltage (VC) of 59.3 V at 10.1 A peak pulse current (IPPM) under a 10/1000 μs waveform. This value is measured per IEC 61000-4-5 and defines the upper voltage limit imposed on protected circuitry during surge events. The P6KA43AHE3/73 achieves this with low incremental surge resistance, ensuring consistent clamping across temperature and aging conditions.
Is the P6KA43AHE3/73 qualified for automotive applications?
Yes, the P6KA43AHE3/73 is AEC-Q101 qualified, having passed all stress tests including high-temperature operating life, temperature cycling, and humidity bias HAST. Its 185 °C maximum junction temperature and DO-204AC packaging meet stringent automotive under-hood requirements. The P6KA43AHE3/73 is explicitly listed in Vishay's AEC-Q101 qualified product list for transient voltage suppressors.
What is the reverse leakage current of the P6KA43AHE3/73 at its stand-off voltage?
At its 36.8 V stand-off voltage (VWM) and TA = 25 °C, the P6KA43AHE3/73 exhibits a maximum reverse leakage current (ID) of 1.0 μA. At elevated temperature (TJ = 150 °C), leakage remains ≤5.0 μA - critical for maintaining low quiescent current in always-on automotive modules. This low leakage is enabled by the device's passivated anisotropic junction structure.
Does the P6KA43AHE3/73 have a bidirectional variant?
No, the P6KA43AHE3/73 is unidirectional only, as confirmed in the Vishay datasheet revision 20-Dec-13. The "A" suffix denotes tighter VBR tolerance (±5 %), but does not indicate polarity change. For bidirectional protection, engineers must select alternate families such as the P6SMB series - the P6KA43AHE3/73 itself provides single-polarity clamping from cathode to anode.
What is the lead finish and soldering specification for the P6KA43AHE3/73?
The P6KA43AHE3/73 features matte tin-plated leads compliant with J-STD-002 (solderability) and JESD 22-B102 (solder heat resistance). It withstands solder dip at 275 °C for up to 10 seconds per JESD 22-B106 and passes JESD 201 Class 2 whisker testing. These specifications ensure reliable assembly in both wave and reflow processes used in automotive and industrial manufacturing.
P6KA43AHE3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- PAR®
- Packaging:
- Tape & Box (TB)
- 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)
P6KA43AHE3/73 FAQ
1.How can I place an order for P6KA43AHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KA43AHE3/73 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 P6KA43AHE3/73 reliable?
The price and inventory of P6KA43AHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KA43AHE3/73 is usually 5 days.
3.What payment methods are accepted for P6KA43AHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KA43AHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KA43AHE3/73?
P6KA43AHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KA43AHE3/73 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 P6KA43AHE3/73?
For technical support, including P6KA43AHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KA43AHE3/73 requirements.
6.How does Aetrix verify that P6KA43AHE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KA43AHE3/73 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 P6KA43AHE3/73 meets industry standards.
7.What is the process for return or replacement of P6KA43AHE3/73?
All P6KA43AHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KA43AHE3/73, 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 P6KA43AHE3/73 part is unused and in its original packaging.
Return procedure for P6KA43AHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KA43AHE3/73 Tags
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