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Vishay General Semiconductor - Diodes Division P4KE39-E3/54
- Part No.:
- P4KE39-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE39-E3/54.pdf
- Description:
- TVS DIODE 31.6VWM 56.4VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,307
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Product details
Overview
P4KE39-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on power and signal lines. It features 33.3 V stand-off voltage (VWM), 37.1–41.0 V breakdown voltage (VBR) at 1 mA, 53.9 V maximum clamping voltage (VC) at 7.4 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial power supplies.
For engineers reviewing the P4KE39-E3/54 datasheet, P4KE39-E3/54 pinout, P4KE39-E3/54 application, or P4KE39-E3/54 equivalent, key selection criteria include verified clamping performance under 10/1000 μs surge, DO-41 leaded package compatibility with through-hole PCB layouts, unidirectional polarity marking (cathode band), and AEC-Q101 qualification status confirmed for commercial-grade E3 suffix variants.
Technical Context
This device operates as a silicon avalanche diode optimized for transient overvoltage suppression in DC power rails and low-speed signal paths. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1.0 μA at 33.3 V), while its 66 °C/W junction-to-lead thermal resistance supports reliable power dissipation up to 1.5 W at TL = 75 °C.
The P4KE39-E3/54 delivers fast response time (<1.0 ns), low incremental surge resistance, and repeatable clamping behavior across temperature (−55 °C to +175 °C). It complies with JESD 22-B106 (solder dip 275 °C/10 s) and JESD 201 Class 1A whisker testing, confirming robustness for automated assembly and long-term reliability in harsh environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 33.3 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 37.1–41.0 V at 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients |
| VC (Clamping Voltage) | 53.9 V at 7.4 A IPPM - Peak voltage seen by protected circuit during 10/1000 μs surge; critical for downstream component survivability |
| PPPM (Peak Pulse Power) | 400 W - Sustained energy absorption capability per single 10/1000 μs transient; enables protection against IEC 61000-4-5 Level 3 surges |
| TJ max. | +175 °C - Maximum junction temperature; supports operation in under-hood automotive and high-ambient industrial environments |
| Package | DO-41 (DO-204AL) - Standard axial-leaded through-hole package with 0.205" body diameter; compatible with legacy wave-solder and hand-solder processes |
| AEC-Q101 Qualified | No - P4KE39-E3/54 carries E3 suffix (RoHS-compliant commercial grade); HE3 suffix required for AEC-Q101 qualification |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads. Cathode indicated by color band on one end; anode is unmarked. Leads meet J-STD-002 and JESD 22-B102 solderability requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Current entry terminal in forward bias; connected to lower-potential side of protected line | Enables standard cathode-to-rail placement for unidirectional clamping; requires correct orientation during placement |
| Cathode (banded end) | Current exit terminal in forward bias; connected to higher-potential rail (e.g., VCC or signal line) | Defines clamping direction: suppresses positive transients to ground when cathode tied to protected node |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable, low-drift VBR over temperature and lifetime; eliminates surface contamination sensitivity in humid environments |
| 400 W peak pulse power (10/1000 μs) | Validated energy handling for common lightning-induced and inductive-switching transients without degradation |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns response), improving protection fidelity |
| RoHS-compliant E3 suffix | Meets JESD 201 Class 1A whisker test; suitable for high-reliability commercial applications with no lead-free reflow restrictions |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation prevents flame propagation in fault conditions; required for many industrial safety certifications |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Clamping |
|---|---|
Use Scenario: Protecting 36 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT rail and chassis ground to clamp positive surges above 33.3 V. Use Value: Limits transient voltage to ≤53.9 V at 7.4 A, preventing damage to 40 V-rated DC-DC converters and microcontrollers. |
Use Scenario: Shielding analog output lines of pressure sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Low-capacitance TVS installed at connector interface to suppress ESD and cable-coupled noise. Use Value: Sub-1 ns response and <1.0 μA leakage at 33.3 V preserve signal integrity while enabling compliance with IEC 61000-4-2 Level 4 (15 kV air). |
| Consumer AC-DC Adapter Input Stage | Telecom DSL Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression in 24 V wall adapters exposed to mains switching noise. IC Role / Device Role / Timing Role: Standoff-rated TVS across output capacitor to absorb flyback spikes and rectifier reverse recovery energy. Use Value: 400 W PPPM rating handles repetitive 10/1000 μs surges without derating; DO-41 footprint allows direct replacement of legacy 1N53xx series. |
Use Scenario: Front-end protection for ADSL line drivers subjected to lightning-induced longitudinal surges. IC Role / Device Role / Timing Role: Unidirectional TVS on tip/ring lines referenced to telecom ground, configured for differential-mode clamping. Use Value: 53.9 V clamping voltage ensures protected PHY ICs (e.g., LMX2531) remain within absolute maximum ratings during Telcordia GR-1089-CORE surges. |
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 (SMB) package; 36 V VWM; 58.1 V VC at 6.9 A; 600 W PPPM | Surface-mount alternative with higher power rating but larger footprint and different thermal path | Select when board space permits SMT layout and higher surge immunity is required beyond 400 W |
| 1.5KE39A | Same DO-41 package; identical VWM/VBR/VC specs; 1500 W PPPM (10/1000 μs); higher IFSM (125 A) | Higher-energy surge handling; not RoHS-compliant (legacy Pb-based termination) | Choose for legacy industrial systems requiring >400 W surge capacity and where RoHS exemption applies |
Compared with SMBJ36A and 1.5KE39A, the P4KE39-E3/54 offers optimal balance of through-hole manufacturability, RoHS compliance, and validated 400 W protection for cost-sensitive automotive and consumer power rails - without requiring PCB redesign or lead-free process adjustments.
Availability
P4KE39-E3/54 is available at Aetrix Electronics and suitable for automotive ECU power conditioning, industrial sensor interface protection, and consumer adapter secondary-side clamping requiring stable component supply and full traceability.
Supply support for P4KE39-E3/54 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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, thermal performance, and application-specific validation.
The P4KE39-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered for robust transient suppression in automotive, industrial, and telecom infrastructure where consistent clamping behavior and long-term stability under thermal stress are mandatory.
FAQ
What is the clamping voltage of the P4KE39-E3/54 under a 10/1000 μs surge?
The P4KE39-E3/54 has a maximum clamping voltage (VC) of 53.9 V at 7.4 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88365 and defines the upper voltage limit imposed on protected circuits during surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is the P4KE39-E3/54 AEC-Q101 qualified?
No, the P4KE39-E3/54 is not AEC-Q101 qualified. It carries the E3 suffix, indicating RoHS-compliant commercial-grade construction. For AEC-Q101 qualification, the part must use the HE3 suffix (e.g., P4KE39AHE3/54), which is explicitly noted in the Vishay datasheet as meeting the automotive stress-test requirements.
What does the "-E3/54" suffix mean in P4KE39-E3/54?
The "-E3" denotes RoHS-compliant commercial-grade termination with JESD 201 Class 1A whisker resistance; "/54" specifies the preferred package code for 13-inch paper tape and reel packaging containing 5500 units. This ordering format aligns with Vishay's standard delivery mode for DO-41 devices and confirms full traceability and assembly-ready packaging.
Can the P4KE39-E3/54 be used in bidirectional configurations?
No, the P4KE39-E3/54 is a unidirectional TVS diode. Bidirectional variants require the "CA" suffix (e.g., P4KE39CA). The P4KE39-E3/54 features a cathode band for polarity identification and is rated only for clamping positive transients relative to ground - using it in reverse-biased bidirectional roles violates its specified electrical characteristics and may cause failure.
What is the maximum operating temperature for the P4KE39-E3/54?
The P4KE39-E3/54 has a maximum junction temperature (TJ max.) of +175 °C and an operating junction/storage temperature range of −55 °C to +175 °C. This wide range supports deployment in under-hood automotive locations, industrial motor drives, and outdoor telecom enclosures where ambient temperatures exceed 100 °C and thermal cycling is severe.
P4KE39-E3/54 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- 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):
- 7.1A
- Power - Peak Pulse:
- 400W
- 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-204AL (DO-41)
P4KE39-E3/54 FAQ
1.How can I place an order for P4KE39-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE39-E3/54 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 P4KE39-E3/54 reliable?
The price and inventory of P4KE39-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE39-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE39-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE39-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE39-E3/54?
P4KE39-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE39-E3/54 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 P4KE39-E3/54?
For technical support, including P4KE39-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE39-E3/54 requirements.
6.How does Aetrix verify that P4KE39-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE39-E3/54 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 P4KE39-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE39-E3/54?
All P4KE39-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE39-E3/54, 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 P4KE39-E3/54 part is unused and in its original packaging.
Return procedure for P4KE39-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE39-E3/54 Tags
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