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Vishay General Semiconductor - Diodes Division P4KE39C-E3/54
- Part No.:
- P4KE39C-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE39C-E3/54.pdf
- Description:
- TVS DIODE 31.6VWM 56.4VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,830
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Product details
Overview
P4KE39C-E3/54 from Vishay General Semiconductor is a bidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for clamping voltage transients on signal or power lines. It features a 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 (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the P4KE39C-E3/54 datasheet, P4KE39C-E3/54 pinout, P4KE39C-E3/54 application, or P4KE39C-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 leaded package compatibility, AEC-Q101 qualification status, thermal resistance (RθJL = 66 °C/W), and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
This device operates as a voltage-clamping protection element in bidirectional configurations, responding to both positive and negative transients without polarity marking. Its glass-passivated junction enables fast response time (<1 ns), low incremental surge resistance, and stable clamping under repetitive 10/1000 μs pulses at 0.01% duty cycle.
The P4KE39C-E3/54 is rated for -55 °C to +175 °C operating junction temperature, with 1.5 W steady-state power dissipation on infinite heatsink at TL = 75 °C and thermal resistance of 66 °C/W (junction-to-lead). It meets JESD 22-B106 solder dip specification (275 °C max, 10 s) and JESD 201 class 1A whisker test (E3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 33.3 V - maximum continuous reverse working voltage before clamping initiates |
| VBR (min/max) | 37.1 V / 41.0 V at 1 mA - ensures reliable breakdown within tight tolerance for predictable clamping onset |
| VC @ IPPM | 53.9 V at 7.4 A - defines worst-case voltage seen by protected circuit during 10/1000 μs transient |
| PPPM | 400 W - peak transient energy absorption capacity per single pulse, critical for lightning/surge immunity |
| TJ max. | +175 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| RθJL | 66 °C/W - quantifies thermal path efficiency from junction to lead, guiding PCB copper pour and heatsinking |
| AEC-Q101 | Qualified - confirms reliability for automotive electronics per stress-test standard including HTRB, HTGB, TCT |
Pinout & Package
Package: DO-41 (DO-204AL), molded epoxy body with matte tin-plated leads; RoHS-compliant (E3 suffix); no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bidirectional terminal pair | Identical clamping behavior for ± transients; no cathode band - symmetric conduction path |
| Lead 1 / Lead 2 | Device terminals | Leads serve as mechanical mounting points and thermal conduction paths; RθJL = 66 °C/W measured between junction and lead center |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables <1 ns response time and stable leakage performance across -55 °C to +175 °C operating range |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV line-earth, 2 kV line-line) surge protection without derating |
| AEC-Q101 qualified | Validated for automotive powertrain, body electronics, and ADAS modules requiring long-term reliability |
| UL 94 V-0 molding compound | Meets flammability safety requirement for enclosed industrial and automotive enclosures |
| JESD 201 class 1A whisker resistance | Prevents tin whisker growth under thermal cycling, ensuring long-term solder joint integrity |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V power rails in engine control units (ECUs) against load dump and alternator transients. IC Role / Device Role / Timing Role: Bidirectional clamping TVS placed upstream of DC-DC converters and microcontrollers. Use Value: Limits rail voltage to ≤53.9 V during 400 W surges, preventing latch-up or permanent damage to downstream ICs. |
Use Scenario: Shielding analog outputs (e.g., 4–20 mA, 0–10 V) of pressure/temperature sensors from ESD and switching noise. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor mounted at connector interface. Use Value: Clamps fast transients (<1 ns rise) while maintaining signal integrity due to minimal parasitic capacitance. |
| Telecom Interface Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding RS-485/RS-232 transceivers in base station backhaul equipment exposed to induced lightning surges. IC Role / Device Role / Timing Role: Primary-level surge suppression on differential bus lines before isolation or level-shifting stages. Use Value: Withstands repetitive 10/1000 μs pulses up to 400 W, meeting Telcordia GR-1089-CORE Level 3 requirements. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Snubber-style TVS across motor terminals or H-bridge outputs. Use Value: Absorbs 40 A IFSM (unidirectional variant) and 400 W pulses without degradation, extending MOSFET lifetime. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ36CA | DO-214AA package, 36 V VWM, 58.1 V VC @ 6.9 A, 600 W PPPM | Surface-mount alternative with higher power rating but larger footprint and different thermal profile | Select when board space allows SMT placement and higher surge margin is required beyond 400 W |
| 1.5KE39C | DO-201AD package, same VWM/VBR/VC specs, 1500 W PPPM, higher IFSM (125 A) | Through-hole but physically larger; suited for higher-energy surge environments (e.g., industrial mains input) | Choose when legacy DO-201AD footprint is retained and system-level surge tests exceed 400 W requirements |
Compared with SMBJ36CA and 1.5KE39C, the P4KE39C-E3/54 offers optimal balance of DO-41 through-hole compatibility, AEC-Q101 qualification, and 400 W surge handling - making it preferred for cost-sensitive, space-constrained automotive and industrial control boards where leaded assembly remains standard.
Availability
P4KE39C-E3/54 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor interfaces, telecom line cards, and consumer appliance motor drives requiring stable component supply across multi-year production cycles.
Supply support for P4KE39C-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, MOSFETs, and protection devices with emphasis on reliability, thermal performance, and automotive-grade qualification.
The P4KE39C-E3/54 belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications demanding AEC-Q101 validation and UL 94 V-0 compliance.
FAQ
What is the polarity configuration of P4KE39C-E3/54?
The P4KE39C-E3/54 is a bidirectional TVS diode with no polarity marking - both terminals behave identically under positive or negative transients. This eliminates orientation errors during manual assembly and supports symmetrical clamping on AC-coupled or differential signal lines. Unlike unidirectional variants (e.g., P4KE39A), it does not feature a cathode band.
Does P4KE39C-E3/54 meet automotive qualification standards?
Yes, the P4KE39C-E3/54 carries the E3 suffix indicating RoHS compliance and AEC-Q101 qualification. It has passed stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT), confirming suitability for under-hood and body electronics applications per automotive OEM requirements.
What is the maximum clamping voltage of P4KE39C-E3/54 under surge conditions?
The P4KE39C-E3/54 exhibits a maximum clamping voltage (VC) of 53.9 V when subjected to its rated peak pulse current (IPPM) of 7.4 A using the standard 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during transient events.
Can P4KE39C-E3/54 be used in place of unidirectional P4KE39A?
No - the P4KE39C-E3/54 is not a drop-in replacement for P4KE39A due to fundamental polarity differences. While both share identical VWM (33.3 V) and VBR (37.1–41.0 V), the "C" suffix denotes bidirectional operation with symmetric clamping, whereas P4KE39A is unidirectional and requires correct cathode orientation. Substitution requires schematic and layout review.
What packaging format is supplied for P4KE39C-E3/54?
P4KE39C-E3/54 is supplied in 13-inch diameter paper tape and reel packaging with a base quantity of 5500 units per reel (package code 54). The E3 suffix confirms RoHS compliance and JESD 201 class 1A whisker resistance, supporting automated through-hole insertion and long-term reliability in high-vibration environments.
P4KE39C-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:
- -
- Bidirectional Channels:
- 1
- 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)
P4KE39C-E3/54 FAQ
1.How can I place an order for P4KE39C-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE39C-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 P4KE39C-E3/54 reliable?
The price and inventory of P4KE39C-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 P4KE39C-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE39C-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE39C-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE39C-E3/54?
P4KE39C-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE39C-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 P4KE39C-E3/54?
For technical support, including P4KE39C-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE39C-E3/54 requirements.
6.How does Aetrix verify that P4KE39C-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE39C-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 P4KE39C-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE39C-E3/54?
All P4KE39C-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE39C-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 P4KE39C-E3/54 part is unused and in its original packaging.
Return procedure for P4KE39C-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE39C-E3/54 Tags
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