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Vishay General Semiconductor - Diodes Division P6KA39AHE3/73
- Part No.:
- P6KA39AHE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KA39AHE3/73.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,717
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Product details
Overview
P6KA39AHE3/73 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 33.3 V stand-off voltage (VWM), 37.1–41.0 V breakdown range (VBR), 53.9 V clamping voltage at 11.1 A peak pulse current, 600 W peak pulse power (10/1000 μs), and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the P6KA39AHE3/73 datasheet, P6KA39AHE3/73 pinout, P6KA39AHE3/73 application, or P6KA39AHE3/73 equivalent, key selection criteria include clamping performance under 10/1000 μs transients, junction temperature capability up to +185 °C, unidirectional polarity for DC rail protection, and DO-15 package compatibility with high-reliability industrial and automotive PCB layouts.
Technical Context
This TVS diode employs passivated anisotropic rectifier technology to deliver stable clamping under repetitive surge conditions. Its 185 °C maximum junction temperature and AEC-Q101 qualification confirm suitability for under-hood automotive electronics and industrial motor drive control circuits where thermal stress and long-term reliability are critical.
The device operates exclusively in unidirectional mode, with cathode denoted by a color band. It exhibits low incremental surge resistance and fast response time-essential for protecting MOSFET gates, microcontroller I/O, and sensor supply rails against inductive switching spikes and lightning-induced surges per IEC 61000-4-5.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33.3 V - Maximum continuous reverse operating voltage before clamping begins; sets safe margin above nominal 24 V or 32 V DC rails. |
| VBR (min/max) | 37.1 V / 41.0 V at 1.0 mA - Confirmed breakdown threshold ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 53.9 V at 11.1 A - Clamping voltage limits downstream component stress during 600 W, 10/1000 μs transients. |
| PPPM | 600 W - Peak pulse power rating defines surge energy handling capacity per standard waveform. |
| TJ max. | +185 °C - Enables operation in high-ambient environments such as engine control units and industrial power supplies. |
| Polarity | Unidirectional - Protects positive DC rails only; requires correct orientation with cathode toward protected line. |
| AEC-Q101 | Qualified - Meets stress test requirements for automotive electronic components including temperature cycling and HTRB. |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, molded epoxy case with UL 94 V-0 flammability rating. Matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-potential reference; completes conduction path during reverse-biased clamping. |
| Cathode | High-side connection point | Marked by color band; connected to protected line (e.g., 24 V supply); conducts when transient exceeds VWM. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier design improves long-term leakage stability and humidity resistance. |
| Surge robustness | Withstands 75 A non-repetitive forward surge (8.3 ms half-sine) without degradation. |
| Thermal resilience | Rated for continuous operation up to +185 °C junction temperature-critical for under-hood placement. |
| Clamping efficiency | Low VC/VBR ratio (~1.37) minimizes let-through voltage while maintaining margin to IC absolute maximum ratings. |
| Automotive compliance | AEC-Q101 qualification covers HTGB, HTRB, TCT, and mechanical shock testing required for Tier-1 suppliers. |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp surges exceeding 33.3 V. Use Value: Limits peak voltage to 53.9 V during 600 W transients, preventing damage to downstream PMICs and CAN transceivers. | Use Scenario: Safeguarding gate drivers and feedback sensors in variable-frequency drives exposed to inductive kickback. IC Role / Device Role / Timing Role: TVS mounted across DC bus or gate supply to absorb switching spikes from IGBT/MOSFET turn-off. Use Value: Fast response and low incremental resistance ensure clamping within nanoseconds, preserving gate oxide integrity. |
| Telecom Line Interface Protection | Consumer Sensor Module Protection |
Use Scenario: Shielding RS-485 transceivers and PoE injectors from ESD and lightning-induced surges on field wiring. IC Role / Device Role / Timing Role: Unidirectional TVS on DC input side of isolated power stage to suppress common-mode transients. Use Value: 185 °C rating supports operation in sealed outdoor enclosures; DO-15 package allows manual rework in field-deployed units. | Use Scenario: Securing supply pins of MEMS accelerometers and environmental sensors in smart home hubs. IC Role / Device Role / Timing Role: Low-leakage (1.0 μA at VWM) TVS on 3.3 V or 5 V sensor rails to avoid signal distortion. Use Value: Tight VBR tolerance (±5.3%) ensures consistent clamping onset across production lots, improving yield in automated test. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | DO-214AA package; 36 V VWM, 58.1 V VC @ 10.3 A; same 600 W rating but lower thermal mass. | Surface-mount layout; less suitable for through-hole high-vibration environments. | Select when board space is constrained and reflow assembly is used. |
| 1.5KE39A | DO-201AD package; 39 V VWM, 60.2 V VC @ 10.0 A; higher clamping voltage and no AEC-Q101 qualification. | General-purpose industrial use only; not validated for automotive temperature cycling or humidity exposure. | Choose for cost-sensitive non-automotive designs where +185 °C operation is unnecessary. |
Compared with SMBJ36A and 1.5KE39A, the P6KA39AHE3/73 offers superior thermal endurance (+185 °C), AEC-Q101 validation, and tighter VBR tolerance-making it the preferred choice for mission-critical automotive and industrial power rail protection where long-term reliability under thermal stress is mandatory.
Availability
P6KA39AHE3/73 is available at Aetrix Electronics and suitable for automotive ECU protection, industrial motor drive control, and telecom line interface applications requiring stable component supply, full traceability, and long-lifecycle support.
Supply support for P6KA39AHE3/73 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 high-reliability, high-temperature, and automotive-qualified solutions.
The P6KA series belongs to Vishay's PAR® (Protection and Regulation) transient voltage suppressor family, engineered specifically for robust overvoltage defense in harsh-environment applications including engine control, power conversion, and industrial automation.
FAQ
What is the maximum clamping voltage of the P6KA39AHE3/73 under standard surge conditions?
The P6KA39AHE3/73 has a maximum clamping voltage (VC) of 53.9 V when subjected to its rated peak pulse current of 11.1 A using the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees predictable overvoltage limiting for downstream ICs and power stages. The P6KA39AHE3/73 maintains this clamping performance across its full operating temperature range up to +185 °C junction temperature.
Is the P6KA39AHE3/73 suitable for automotive applications?
Yes, the P6KA39AHE3/73 is AEC-Q101 qualified and rated for junction temperatures up to +185 °C, making it suitable for under-hood automotive applications such as engine control units, body control modules, and ADAS power supplies. Its DO-15 package provides mechanical robustness in vibration-prone environments, and the P6KA39AHE3/73 meets stringent automotive reliability test requirements including temperature cycling and high-temperature reverse bias.
What does the HE3/73 suffix indicate in P6KA39AHE3/73?
The HE3 suffix denotes RoHS-compliant construction with matte tin-plated leads that meet J-STD-002 solderability and JESD 201 Class 2 whisker resistance. The /73 indicates tape-and-reel packaging in 73-inch reels containing 4000 units-standard for automated SMT placement. The P6KA39AHE3/73 combines environmental compliance, process reliability, and logistics readiness for high-volume manufacturing.
How does the P6KA39AHE3/73 differ from the non-A version (P6KA39HE3/73)?
The P6KA39AHE3/73 has a tighter breakdown voltage tolerance (37.1–41.0 V) compared to the standard P6KA39HE3/73 (35.1–42.9 V), resulting in more precise clamping onset. It also features improved parameter consistency and enhanced screening for automotive use. Both share identical package, power rating, and AEC-Q101 qualification, but the P6KA39AHE3/73 is specified for applications demanding tighter VBR control and higher production yield.
Can the P6KA39AHE3/73 be used in bidirectional configurations?
No, the P6KA39AHE3/73 is unidirectional only, with cathode marked by a color band. It protects against positive-going transients on DC lines referenced to ground. For AC or bipolar signal line protection, a dedicated bidirectional TVS such as the P6SMB39CA must be used. Attempting to use the P6KA39AHE3/73 in reverse-biased AC applications will result in forward conduction and potential failure.
P6KA39AHE3/73 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):
- 33.3V
- Voltage - Breakdown (Min):
- 37.1V
- Voltage - Clamping (Max) @ Ipp:
- 53.9V
- Current - Peak Pulse (10/1000µs):
- 11.1A
- 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)
P6KA39AHE3/73 FAQ
1.How can I place an order for P6KA39AHE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KA39AHE3/73 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 P6KA39AHE3/73 reliable?
The price and inventory of P6KA39AHE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KA39AHE3/73 is usually 5 days.
3.What payment methods are accepted for P6KA39AHE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KA39AHE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KA39AHE3/73?
P6KA39AHE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KA39AHE3/73 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 P6KA39AHE3/73?
For technical support, including P6KA39AHE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KA39AHE3/73 requirements.
6.How does Aetrix verify that P6KA39AHE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KA39AHE3/73 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 P6KA39AHE3/73 meets industry standards.
7.What is the process for return or replacement of P6KA39AHE3/73?
All P6KA39AHE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KA39AHE3/73, 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 P6KA39AHE3/73 part is unused and in its original packaging.
Return procedure for P6KA39AHE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KA39AHE3/73 Tags
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