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Vishay General Semiconductor - Diodes Division P6KE39A-E3/73
- Part No.:
- P6KE39A-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AC, DO-15, Axial
- Datasheet:
-
P6KE39A-E3/73.pdf
- Description:
- TVS DIODE 33.3VWM 53.9VC DO204AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,995
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Product details
Overview
P6KE39A-E3/73 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-15 package, designed for primary-side overvoltage protection of sensitive electronics. It features 37.1 V minimum and 41.0 V maximum breakdown voltage at 1.0 mA test current, 33.3 V stand-off voltage, 1.0 μA max reverse leakage at VWM, 53.9 V clamping voltage at 11.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor signal lines and industrial I/O interfaces.
For engineers reviewing the P6KE39A-E3/73 datasheet, P6KE39A-E3/73 pinout, P6KE39A-E3/73 application, or P6KE39A-E3/73 equivalent, key selection criteria include clamping voltage margin vs. protected IC's absolute maximum rating, thermal resistance (RθJL = 20 °C/W), unidirectional polarity marking (cathode band), and AEC-Q101 qualification status for automotive-grade reliability validation.
Technical Context
This TVS operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 MΩ at 33.3 V), then avalanches rapidly (<1 ns response) when transient voltage exceeds VBR to divert surge current away from downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance during repetitive 10/1000 μs pulses at 0.01% duty cycle.
Thermal design relies on lead-to-ambient conduction: RθJA = 75 °C/W and RθJL = 20 °C/W enable 5.0 W steady-state dissipation at TL = 75 °C, while peak surge handling is limited by junction temperature rise - derating begins above TA = 25 °C per Figure 2, with TJ(max) = +175 °C defining absolute safe operating limit.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 37.1–41.0 V at 1.0 mA - defines precise avalanche initiation threshold for reliable overvoltage triggering |
| Stand-off Voltage VWM | 33.3 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA |
| Clamping Voltage VC | 53.9 V at 11.1 A IPPM - actual voltage seen by protected circuit during worst-case 600 W surge |
| Peak Pulse Power PPPM | 600 W (10/1000 μs) - standardized surge energy handling capacity per industry waveform definition |
| Peak Pulse Current IPPM | 11.1 A - maximum non-repetitive surge current the device safely clamps without failure |
| Junction Temperature Range | −55 °C to +175 °C - supports operation in under-hood automotive and industrial ambient extremes |
| Package | DO-15 (DO-204AC) - axial-leaded through-hole package with UL 94 V-0 molded epoxy housing |
Pinout & Package
DO-15 (DO-204AC) package: axial-leaded, cylindrical epoxy-molded body with cathode band marking on one end. Matte tin-plated leads meet J-STD-002 solderability and JESD 201 Class 1A whisker resistance requirements. Lead length ≥25.4 mm, body diameter 3.3–3.5 mm, overall length ≥6.15 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or common return path; carries full surge current during clamping |
| Cathode | High-side transient sensing node | Marked with color band; connects to protected line - avalanche initiates when voltage exceeds VBR relative to anode |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance (±5%) and long-term reliability under thermal cycling and humidity stress |
| 600 W peak pulse power (10/1000 μs) | Supports robust protection against ISO 7637-2 pulse 1/2a/5a and IEC 61000-4-5 surge events in automotive ECUs |
| AEC-Q101 qualified (E3 suffix variant) | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage stress on downstream MOSFET gates or MCU I/O pins during transient events |
| Fast response time < 1 ns | Engages before most semiconductor damage mechanisms initiate - critical for protecting high-speed data lines |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control modules exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between sensor signal line and chassis ground, triggered only during positive overvoltage events. Use Value: Limits voltage to ≤53.9 V during 11.1 A surges, preventing gate oxide rupture in connected op-amps and ADC front-ends rated for 55 V absolute max. |
Use Scenario: Safeguarding 24 V DC digital input channels in programmable logic controllers subjected to field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 33.3 V) installed upstream of optocoupler input, conducting only during >37.1 V transients. Use Value: Clamps 600 W surges within 1 ns, maintaining signal integrity while enabling use of cost-optimized 36 V-rated interface ICs instead of higher-voltage alternatives. |
| Consumer Power Adapter Input | Telecom Line Interface |
|
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters where transformer leakage inductance causes ringing spikes on rectified DC bus. IC Role / Device Role / Timing Role: Unidirectional TVS tied between +VOUT and GND, absorbing fast-rising spikes exceeding 33.3 V but below 53.9 V clamping level. Use Value: Prevents premature failure of downstream 36 V-rated DC-DC controllers and electrolytic capacitors rated for 50 V WV. |
Use Scenario: Primary protection on RS-485 transceiver bus lines in telecom base station equipment located in lightning-prone outdoor cabinets. IC Role / Device Role / Timing Role: First-stage shunt device on differential pair, clamping common-mode surges before they reach integrated transceiver ESD structures. Use Value: Withstands repeated 10/1000 μs surges up to 11.1 A, extending mean time between failures in harsh electromagnetic environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36A | DO-214AA package, 36 V VWM, 58.1 V VC at 10.3 A, 600 W rating - smaller footprint but higher thermal resistance (RθJA = 110 °C/W) | Better suited for space-constrained PCB layouts; less effective in high-ambient-temperature industrial enclosures without heatsinking | Select SMBJ36A when board area is constrained and average ambient stays below 60 °C; verify thermal margin using RθJA derating curves. |
| 1.5KE39A | DO-201AD package, identical VBR (37.1–41.0 V), same 600 W rating, but higher VF (3.5 V) and larger body (5.6 mm diameter) | Higher mechanical robustness for high-vibration environments; requires more PCB real estate and manual assembly compatibility | Choose 1.5KE39A for ruggedized industrial controls where vibration resistance and legacy DO-201AD footprint compatibility are prioritized over size. |
Compared with SMBJ36A and 1.5KE39A, P6KE39A-E3/73 offers optimal balance of proven DO-15 manufacturability, AEC-Q101 qualification, and thermal performance (RθJL = 20 °C/W) for through-hole automotive and industrial designs requiring long-term supply stability and process familiarity.
Availability
P6KE39A-E3/73 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer power adapter secondary-side protection, and telecom line interface circuits requiring stable component supply across multi-year production cycles.
Supply support for P6KE39A-E3/73 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, MOSFETs, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P6KE series belongs to Vishay's TransZorb® TVS family, engineered for cost-effective, high-surge-capability overvoltage protection in commercial and automotive systems where rapid transient response and stable clamping are essential.
FAQ
What is the breakdown voltage tolerance for P6KE39A-E3/73?
The P6KE39A-E3/73 has a specified breakdown voltage range of 37.1 V to 41.0 V at 1.0 mA test current, representing a ±5% tolerance around the nominal 39 V rating. This tight VBR window ensures consistent clamping behavior across production lots and enables predictable system-level overvoltage margining in designs using the P6KE39A-E3/73.
Is P6KE39A-E3/73 RoHS compliant and halogen-free?
Yes, the P6KE39A-E3/73 carries the "E3" suffix, indicating full RoHS compliance per EU Directive 2011/65/EU and halogen-free status per IEC 61249-2-21. The molding compound meets UL 94 V-0 flammability rating, and matte tin-plated leads satisfy J-STD-002 solderability and JESD 201 Class 1A whisker resistance requirements - all confirmed in Vishay document 88369 for the P6KE39A-E3/73.
Can P6KE39A-E3/73 be used in bidirectional protection circuits?
No, P6KE39A-E3/73 is a unidirectional TVS diode, identifiable by its cathode band marking. For bidirectional protection, Vishay specifies the CA-suffix variant (e.g., P6KE39CA). Using P6KE39A-E3/73 in bidirectional applications would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit - always match polarity to application requirements when selecting the P6KE39A-E3/73.
What is the maximum allowable junction temperature for P6KE39A-E3/73?
The P6KE39A-E3/73 has a maximum junction temperature (TJ) rating of +175 °C, as stated in the Absolute Maximum Ratings table of Vishay document 88369. This limit governs both steady-state thermal design (using RθJA = 75 °C/W and RθJL = 20 °C/W) and transient surge handling - exceeding +175 °C risks irreversible degradation of the glass-passivated junction in the P6KE39A-E3/73.
How does the clamping voltage of P6KE39A-E3/73 compare to its breakdown voltage?
The P6KE39A-E3/73 clamps at 53.9 V when subjected to its rated 11.1 A peak pulse current (IPPM), yielding a clamping ratio (VC/VBR) of approximately 1.38 based on the typical 39 V nominal breakdown. This ratio reflects the device's low incremental surge resistance and confirms its effectiveness in limiting overvoltage stress - a critical parameter when verifying that the P6KE39A-E3/73 keeps protected ICs within their absolute maximum voltage ratings.
P6KE39A-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AC, DO-15, Axial
- Series:
- TransZorb®
- Packaging:
- Cut Tape (CT)
- Product Status:
- Active
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AC (DO-15)
P6KE39A-E3/73 FAQ
1.How can I place an order for P6KE39A-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6KE39A-E3/73 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 P6KE39A-E3/73 reliable?
The price and inventory of P6KE39A-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6KE39A-E3/73 is usually 5 days.
3.What payment methods are accepted for P6KE39A-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6KE39A-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6KE39A-E3/73?
P6KE39A-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6KE39A-E3/73 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 P6KE39A-E3/73?
For technical support, including P6KE39A-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6KE39A-E3/73 requirements.
6.How does Aetrix verify that P6KE39A-E3/73 is sourced from the original manufacturer or authorized distributors?
All P6KE39A-E3/73 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 P6KE39A-E3/73 meets industry standards.
7.What is the process for return or replacement of P6KE39A-E3/73?
All P6KE39A-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P6KE39A-E3/73, 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 P6KE39A-E3/73 part is unused and in its original packaging.
Return procedure for P6KE39A-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6KE39A-E3/73 Tags
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