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Vishay General Semiconductor - Diodes Division P6KA39HE3/54
- Part No.:
- P6KA39HE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KA39HE3/54.pdf
- Description:
- TVS DIODE 31.6VWM 56.4VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,077
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Product details
Overview
P6KA39HE3/54 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 maximum 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, operating up to +185 °C junction temperature - deployed in automotive power supply rails and industrial sensor interfaces.
For engineers reviewing the P6KA39HE3/54 datasheet, P6KA39HE3/54 pinout, P6KA39HE3/54 application, or P6KA39HE3/54 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-204AC package dimensions, clamping behavior under surge, and direct alternatives with documented VBR/VC and thermal derating differences.
Technical Context
The P6KA39HE3/54 operates as a silicon avalanche diode with passivated anisotropic rectifier technology, enabling fast response (<1 ns) to transients induced by inductive switching or ESD events. Its unidirectional polarity and 31.6 V standoff support DC-biased protection paths without reverse leakage compromise.
Rated for 185 °C junction operation and qualified per AEC-Q101, it sustains repetitive 10/1000 μs surges at 0.01% duty cycle while maintaining stable clamping voltage (VC = 56.4 V) and low incremental surge resistance - critical for high-reliability automotive ECUs and industrial motor drives where thermal margin and surge consistency are design-critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 31.6 V maximum - defines highest continuous reverse voltage before significant leakage; sets usable DC rail protection threshold. |
| VBR (min/max) | 35.1 V / 42.9 V at 1 mA - ensures reliable avalanche initiation above normal operating voltage with controlled tolerance band. |
| VC @ IPPM | 56.4 V clamping voltage at 10.6 A - limits downstream IC stress during 600 W transient; directly determines protected circuit's voltage margin. |
| PPPM | 600 W peak pulse power (10/1000 μs) - quantifies single-event surge energy handling capability under standardized waveform. |
| TJ max. | +185 °C - enables placement near hot components (e.g., power MOSFETs, engine control modules) without thermal derating penalties. |
| IFSM | 75 A non-repetitive forward surge (8.3 ms half-sine) - supports inrush current immunity during power-up or fault recovery sequences. |
Pinout & Package
Package: DO-204AC (DO-15), axial leaded, epoxy-molded case with matte tin-plated leads; cathode indicated by color band; RoHS-compliant and JESD201 Class 2 whisker tested (HE3 suffix).
| 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 breakdown terminal | Connected to protected line; absorbs positive transients when voltage exceeds VBR; marked by color band. |
Key Features
| Feature | Design Value |
|---|---|
| 185 °C junction rating | Enables deployment in under-hood automotive modules and high-temperature industrial enclosures without external heatsinking. |
| AEC-Q101 qualification | Validates reliability for automotive electronics per stress test requirements including HTGB, HTRB, and temperature cycling. |
| 600 W 10/1000 μs pulse rating | Meets ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surge immunity requirements for 12 V systems. |
| Low clamping ratio (VC/VBR ≈ 1.6) | Minimizes overvoltage overshoot during clamping - preserves margin for 3.3 V/5 V logic interfaces downstream of protection. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs against load dump and alternator transients in body control modules. IC Role / Device Role: Unidirectional TVS placed between VIN and GND to clamp spikes >35 V while leaking <1 μA at 31.6 V. Use Value: Prevents MCU reset or latch-up during 120 V/400 ms load dump events by limiting voltage to ≤56.4 V at peak surge current. | Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) from ESD and cable discharge in factory automation sensors. IC Role / Device Role: Series-connected TVS on signal line with cathode toward driver, suppressing ±8 kV contact ESD per IEC 61000-4-2. Use Value: Maintains signal integrity below 31.6 V standby while responding in <1 ns to divert >10 A transients away from precision DAC/ADC front-end. |
| Telecom DC Power Input Protection | Computer Peripheral USB VBUS Line Protection |
Use Scenario: Safeguarding PoE-powered network switches' 48 V DC input against lightning-induced surges on outdoor cabling. IC Role / Device Role: Primary clamping device on main DC bus, coordinated with upstream fuse and secondary filtering. Use Value: Withstands 600 W surges and clamps to 56.4 V, ensuring downstream DC-DC converters operate within safe input range during 10/1000 μs threats. | Use Scenario: Adding secondary overvoltage protection on USB 2.0 VBUS line in docking stations exposed to hot-plug transients and adapter faults. IC Role / Device Role: Low-capacitance unidirectional TVS placed between VBUS and GND, leveraging DO-15 footprint compatibility with layout constraints. Use Value: Clamps 15 V adapter overvoltage to ≤56.4 V before damage occurs to USB controller ICs rated for 6 V absolute max. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/5A | VBR min/max = 40.0–44.2 V; VC = 58.1 V at 10.3 A; same DO-214AC package but surface-mount. | Requires PCB rework for SMT vs. through-hole; higher VBR delays clamping onset, increasing stress on downstream 3.3 V logic. | Select when board space is constrained and reflow assembly is available; verify layout clearance for 58.1 V clamping. |
| 1.5KE39A | VBR min/max = 37.1–40.9 V; VC = 60.0 V at 10.0 A; same DO-204AC package but higher VC and no AEC-Q101 qualification. | Lacks automotive qualification; 60.0 V clamping raises risk of overvoltage failure in 3.3 V/5 V interface protection. | Acceptable for industrial non-automotive use where AEC-Q101 is not mandated and 3.6 V higher clamping is tolerable. |
Compared with SMAJ36A-E3/5A and 1.5KE39A, the P6KA39HE3/54 offers tighter VBR tolerance (35.1–42.9 V), lower clamping voltage (56.4 V), and AEC-Q101 qualification - making it the preferred choice for automotive-grade 12 V system protection where thermal robustness and precise voltage limiting are essential.
Availability
P6KA39HE3/54 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, telecom DC power inputs, and computer peripheral protection requiring stable component supply across extended temperature and surge conditions.
Supply support for P6KA39HE3/54 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with emphasis on high-reliability, high-temperature, and automotive-qualified components.
The P6KA39HE3/54 belongs to Vishay's PAR® family of transient voltage suppressors, engineered specifically for demanding automotive and industrial environments where sustained 185 °C operation and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum clamping voltage of the P6KA39HE3/54 under rated surge conditions?
The P6KA39HE3/54 clamps to a maximum of 56.4 V when subjected to its rated 10.6 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value is measured at TA = 25 °C and defines the upper voltage limit imposed on protected circuits during transient events - a critical parameter for ensuring downstream ICs remain within their absolute maximum ratings.
Is the P6KA39HE3/54 qualified for automotive applications?
Yes, the P6KA39HE3/54 is AEC-Q101 qualified, confirming its suitability for automotive electronics. This qualification includes rigorous testing for high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling, and mechanical shock - validating reliability in engine control units, body electronics, and ADAS modules where ambient temperatures reach 125 °C and junction temperatures approach 185 °C.
What package type does the P6KA39HE3/54 use, and what are its key mechanical features?
The P6KA39HE3/54 uses the DO-204AC (DO-15) axial-leaded package: 9.5 mm body length, 3.6 mm diameter, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and UL 94 V-0 rated epoxy molding compound. The HE3 suffix confirms RoHS compliance and JESD 201 Class 2 whisker resistance - essential for long-term solder joint integrity in automotive and industrial assemblies.
How does the P6KA39HE3/54 differ from the P6KA39A variant?
The P6KA39HE3/54 has a VBR range of 35.1 V to 42.9 V at 1 mA, while the P6KA39A variant specifies 37.1 V to 41.0 V - indicating tighter breakdown tolerance. Both share identical VWM (31.6 V), VC (56.4 V / 53.9 V), and package (DO-204AC), but the P6KA39HE3/54's broader VBR band allows greater manufacturing yield and cost optimization in non-critical clamping applications.
What is the peak pulse power rating of the P6KA39HE3/54, and under what waveform is it specified?
The P6KA39HE3/54 is rated for 600 W peak pulse power dissipation using the standardized 10/1000 μs double-exponential waveform defined by ANSI/IEEE C62.35. This rating applies at TA = 25 °C and assumes a 0.01 % duty cycle; derating is required above 25 °C per Figure 2 in the Vishay datasheet Document Number 88368.
P6KA39HE3/54 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):
- 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)
P6KA39HE3/54 FAQ
1.How can I place an order for P6KA39HE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KA39HE3/54 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 P6KA39HE3/54 reliable?
The price and inventory of P6KA39HE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KA39HE3/54 is usually 5 days.
3.What payment methods are accepted for P6KA39HE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KA39HE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KA39HE3/54?
P6KA39HE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KA39HE3/54 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 P6KA39HE3/54?
For technical support, including P6KA39HE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KA39HE3/54 requirements.
6.How does Aetrix verify that P6KA39HE3/54 is sourced from the original manufacturer or authorized distributors?
All P6KA39HE3/54 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 P6KA39HE3/54 meets industry standards.
7.What is the process for return or replacement of P6KA39HE3/54?
All P6KA39HE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P6KA39HE3/54, 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 P6KA39HE3/54 part is unused and in its original packaging.
Return procedure for P6KA39HE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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