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Vishay General Semiconductor - Diodes Division P6KA39HE3/73
- Part No.:
- P6KA39HE3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KA39HE3/73.pdf
- Description:
- TVS DIODE 31.6VWM 56.4VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,293
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Product details
Overview
P6KA39HE3/73 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 35.1 V minimum breakdown voltage (VBR), 31.6 V standoff voltage (VWM), 600 W peak pulse power (10/1000 μs), 10.6 A peak pulse current (IPPM), and clamps to 56.4 V at rated surge - deployed in automotive power supplies, industrial sensor interfaces, and telecom line protection.
For engineers reviewing the P6KA39HE3/73 datasheet, P6KA39HE3/73 pinout, P6KA39HE3/73 application, or P6KA39HE3/73 equivalent, key selection criteria include unidirectional polarity, DO-204AC (DO-15) package compatibility, AEC-Q101 qualification, 185 °C junction temperature rating, and clamping performance under repetitive 10/1000 μs transients.
Technical Context
This TVS diode uses passivated anisotropic rectifier technology with optimized junction passivation for stable high-temperature operation. Its unidirectional structure provides low clamping voltage during reverse-biased surges while maintaining tight VBR tolerance (±5% typical) and low incremental surge resistance.
Rated for 185 °C maximum junction temperature and qualified per AEC-Q101, the P6KA39HE3/73 supports automotive-grade reliability under thermal cycling and mechanical stress. It delivers consistent 600 W surge handling at 25 °C, derating linearly above TA = 25 °C per published curves.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 31.6 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA; defines safe DC bias margin. |
| VBR (min/max) | 35.1 V / 42.9 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on threshold. |
| VC @ IPPM | 56.4 V - Clamped voltage at 10.6 A 10/1000 μs surge; determines protected circuit's maximum transient exposure. |
| PPPM | 600 W - Peak pulse power dissipation capability; enables suppression of high-energy transients without failure. |
| TJ max | +185 °C - Maximum junction temperature rating; supports under-hood automotive and high-ambient industrial use. |
| IFSM | 75 A - Non-repetitive forward surge current (8.3 ms half-sine); withstands inrush or fault currents in power rails. |
| Polarity | Unidirectional - Cathode-banded device; protects against negative-going transients only; requires correct orientation. |
Pinout & Package
Package: DO-204AC (DO-15), molded epoxy case with matte tin-plated leads; cathode indicated by color band; RoHS-compliant and AEC-Q101 qualified.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during positive surges in unidirectional configuration. |
| Cathode | Reverse-biased surge clamping terminal | Connected to higher-potential side; avalanches at VBR to clamp transients toward ground or rail. |
Key Features
| Feature | Design Value |
|---|---|
| Junction passivation | Optimized anisotropic rectifier process ensures stable VBR and leakage across -65 °C to +185 °C. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics with zero defect screening. |
| Low clamping ratio | VC/VBR ≈ 1.6 - Enables tighter voltage margins for sensitive 3.3 V/5 V/12 V ICs without overdesigning downstream protection. |
| Solderability | Matte tin leads compliant with J-STD-002 and JESD 22-B102; withstands 275 °C solder dip for 10 s per JESD 22-B106. |
| Whisker resistance | HE3 suffix meets JESD 201 Class 2 whisker test - critical for long-life automotive and industrial deployments. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamp |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp negative spikes below 60 V. Use Value: Withstands 600 W 10/1000 μs pulses and operates up to 185 °C - eliminates need for derating in under-hood environments. |
Use Scenario: Shielding analog outputs of pressure/temperature sensors from ESD and switching noise in factory automation. IC Role / Device Role / Timing Role: Low-capacitance TVS on 0–5 V or 4–20 mA output lines to prevent latch-up in ADC front-ends. Use Value: 56.4 V clamping at 10.6 A ensures sensor ICs see <60 V transient exposure - preserving accuracy and longevity. |
| Telecom Line Interface Surge Suppression | Consumer Power Adapter Input Protection |
|
Use Scenario: Secondary-side surge protection on PoE-powered Ethernet ports and DSL line cards. IC Role / Device Role / Timing Role: Unidirectional TVS on DC bias lines to absorb induced lightning surges and EFT bursts. Use Value: AEC-Q101 qualification and 185 °C rating support extended field life in outdoor telecom cabinets. |
Use Scenario: Input-stage transient suppression in AC/DC adapters for smart home devices and IoT gateways. IC Role / Device Role / Timing Role: Primary-side TVS across bulk capacitor inputs to limit voltage overshoot during hot-plug events. Use Value: 600 W rating and fast response time (<1 ns) prevent damage to bridge rectifiers and primary controllers. |
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 | Bidirectional; 36 V VWM; 58.1 V VC @ 10.3 A; same DO-214AA package but different footprint. | Supports bidirectional transients (e.g., AC-coupled lines); not AEC-Q101 qualified. | Select when protecting symmetrical signals or where polarity reversal risk exists; verify PCB layout compatibility. |
| 1.5KE39A | Higher 1.5 kW rating; 39 V VWM; 60.3 V VC @ 24.9 A; larger DO-201AD package; no AEC-Q101 qualification. | Used in high-energy industrial mains protection; lacks automotive reliability validation and high-temp stability. | Choose for cost-sensitive non-automotive designs requiring higher surge margin; accept larger board area and no whisker testing. |
Compared with SMBJ36AHE3/52 and 1.5KE39A, the P6KA39HE3/73 offers AEC-Q101 qualification, 185 °C operation, and DO-15 footprint - making it uniquely suited for space-constrained, high-reliability automotive and industrial edge nodes where long-term thermal stability is mandatory.
Availability
P6KA39HE3/73 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface clamping, and telecom line surge suppression requiring stable component supply across extended temperature ranges and lifecycle commitments.
Supply support for P6KA39HE3/73 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, TVS devices, and optoelectronics with emphasis on reliability and high-temperature performance.
The P6KA series belongs to Vishay's PAR® family of high-temperature-stable TVS diodes, engineered specifically for automotive, industrial, and telecom applications demanding AEC-Q101 compliance and operation beyond 150 °C.
FAQ
What is the maximum operating temperature for the P6KA39HE3/73?
The P6KA39HE3/73 has a maximum junction temperature (TJ) of +185 °C and is rated for continuous operation across -65 °C to +185 °C. This specification enables deployment in under-hood automotive modules and high-ambient industrial controls where standard TVS diodes would thermally derate or fail.
Is the P6KA39HE3/73 unidirectional or bidirectional?
The P6KA39HE3/73 is a unidirectional TVS diode, as confirmed by its polarity designation in the Vishay datasheet and cathode band marking. It clamps only reverse-biased transients - forward surges must be handled by other means or avoided via circuit topology.
Does the P6KA39HE3/73 meet AEC-Q101 requirements?
Yes, the P6KA39HE3/73 is explicitly AEC-Q101 qualified, as stated in the Vishay datasheet revision 20-Dec-13 (Document Number: 88368). This qualification covers stress tests including HTGB, HTRB, TCT, and mechanical shock - validating suitability for automotive electronics.
What is the clamping voltage of the P6KA39HE3/73 at its rated surge current?
The P6KA39HE3/73 clamps to a maximum of 56.4 V at its rated peak pulse current (IPPM) of 10.6 A under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuits during surge events.
What package type does the P6KA39HE3/73 use?
The P6KA39HE3/73 uses the DO-204AC (DO-15) package - a radial-leaded, molded epoxy case with 9.5 mm body length and 3.6 mm diameter. The HE3 suffix indicates RoHS compliance, AEC-Q101 qualification, and JESD 201 Class 2 whisker resistance.
P6KA39HE3/73 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):
- 31.6V
- Voltage - Breakdown (Min):
- 35.1V
- Voltage - Clamping (Max) @ Ipp:
- 56.4V
- Current - Peak Pulse (10/1000µs):
- 10.6A
- 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)
P6KA39HE3/73 FAQ
1.How can I place an order for P6KA39HE3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KA39HE3/73 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 P6KA39HE3/73 reliable?
The price and inventory of P6KA39HE3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KA39HE3/73 is usually 5 days.
3.What payment methods are accepted for P6KA39HE3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KA39HE3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KA39HE3/73?
P6KA39HE3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KA39HE3/73 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 P6KA39HE3/73?
For technical support, including P6KA39HE3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KA39HE3/73 requirements.
6.How does Aetrix verify that P6KA39HE3/73 is sourced from the original manufacturer or authorized distributors?
All P6KA39HE3/73 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 P6KA39HE3/73 meets industry standards.
7.What is the process for return or replacement of P6KA39HE3/73?
All P6KA39HE3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KA39HE3/73, 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 P6KA39HE3/73 part is unused and in its original packaging.
Return procedure for P6KA39HE3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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