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Vishay General Semiconductor - Diodes Division P4KE39CHE3/54
- Part No.:
- P4KE39CHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE39CHE3/54.pdf
- Description:
- TVS DIODE 31.6VWM 56.4VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,229
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Product details
Overview
P4KE39CHE3/54 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, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the P4KE39CHE3/54 datasheet, P4KE39CHE3/54 pinout, P4KE39CHE3/54 application, or P4KE39CHE3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-41 mechanical compatibility, 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 protector with symmetrical avalanche behavior in both polarities, enabling robust ESD and surge suppression without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low leakage (<1 μA at VWM), while the 175 °C max junction temperature supports under-hood automotive environments.
The P4KE39CHE3/54 delivers 53.9 V clamping at 7.4 A (10/1000 μs), with <1 ns response time and low incremental surge resistance - critical for safeguarding MOSFET gates and microcontroller I/O pins against inductive switching spikes and lightning-induced surges in 12 V/24 V systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 33.3 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below system rail. |
| VBR (Breakdown Voltage) | 37.1–41.0 V at 1 mA - Tight 5 % tolerance ensures predictable turn-on across temperature and production lots. |
| VC (Clamping Voltage) | 53.9 V at 7.4 A (10/1000 μs) - Limits transient voltage seen by downstream ICs to safe levels during surge events. |
| PPPM (Peak Pulse Power) | 400 W - Sustains high-energy transients per IEC 61000-4-5 Level 3 (1 kV/2 Ω coupling) without degradation. |
| TJ max | 175 °C - Enables operation in engine control units, powertrain modules, and other high-temperature automotive zones. |
| RθJL | 66 °C/W - Low thermal resistance allows effective heat dissipation through PCB traces or leads without heatsink. |
| AEC-Q101 Qualified | Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing per JESD47. |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; matte tin-plated terminals solderable per J-STD-002; no polarity marking (bidirectional).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically - no cathode band; enables placement without orientation check on PCB. |
| Lead 1 / Lead 2 | Thermal and electrical interface | Leads serve as primary heat path (RθJL = 66 °C/W); 10 mm lead length used for thermal derating per Fig. 5. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and humidity exposure; eliminates risk of junction corrosion in harsh environments. |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body electronics, and ADAS modules requiring zero-failure field performance. |
| 400 W peak pulse power (10/1000 μs) | Withstands repeated ISO 7637-2 pulse 1/2a/3a transients and IEC 61000-4-5 combination wave surges up to 1 kV. |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes voltage overshoot during clamping - critical for protecting 3.3 V/5 V logic inputs and analog front-ends. |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed enclosures; required for automotive cabin and industrial control panel certifications. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus nodes and temperature/pressure sensors connected to 12 V vehicle battery rails. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between sensor line and ground, absorbing load-dump and ESD events. Use Value: Maintains signal integrity during 100 V/50 ms load dump pulses while meeting ISO 16750-2 requirements. |
Use Scenario: Shielding 4–20 mA current loop inputs in programmable logic controllers exposed to motor drive noise. IC Role / Device Role / Timing Role: Primary surge suppressor on field-side input terminals, shunting induced transients before signal conditioning circuitry. Use Value: Clamps 4 kV EFT bursts (IEC 61000-4-4) to <54 V, preventing op-amp saturation and ADC offset errors. |
| Telecom Line Card Protection | Consumer Appliance Motor Control |
Use Scenario: Safeguarding Ethernet PHY interfaces and DSL line drivers against lightning-induced surges on outdoor-facing ports. IC Role / Device Role / Timing Role: First-stage protector on differential pairs, coordinated with GDTs and series impedance for multi-level defense. Use Value: Responds in <1 ns to limit coupled surge energy to <100 mJ, preserving PHY IC latch-up immunity. |
Use Scenario: Suppressing commutation spikes from universal motors in washing machines and HVAC blowers. IC Role / Device Role / Timing Role: Across-the-line TVS on AC mains input to triac/driver IC, clamping inductive kickback from relay coils. Use Value: Handles 40 A IFSM (8.3 ms half-sine) and dissipates 400 W peaks without degradation over 10-year appliance life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ33CA | DO-214AA package; 33 V VWM; 53.3 V VC at 7.5 A; 600 W PPPM; higher capacitance (≈150 pF @ 0 V). | Better suited for high-speed data lines due to lower clamping voltage but larger footprint; less thermally efficient (RθJA ≈ 40 °C/W). | Select SMBJ33CA when board space permits larger SMD package and higher peak power is needed; not drop-in for axial DO-41 layouts. |
| 1.5KE39CA | Same DO-41 package; 33.3 V VWM; 58.1 V VC at 6.9 A; 1500 W PPPM; higher clamping voltage; unidirectional/bidirectional variants available. | Higher energy handling for severe surge environments (e.g., utility metering), but looser VBR tolerance (±10 %) and no AEC-Q101 qualification. | Choose 1.5KE39CA for cost-sensitive industrial mains protection where AEC-Q101 is unnecessary and 58.1 V clamping is acceptable. |
Compared with P4KE39CHE3/54, SMBJ33CA offers superior power rating and lower clamping in SMD form but requires re-layout; 1.5KE39CA provides higher surge capacity in same axial package but lacks automotive qualification and has wider VBR spread - making P4KE39CHE3/54 optimal for space-constrained, AEC-Q101–mandated automotive signal protection.
Availability
P4KE39CHE3/54 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial I/O conditioning, and telecom line card surge suppression requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for P4KE39CHE3/54 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, efficiency, and application-specific optimization.
The P4KE39CHE3/54 belongs to Vishay's TRANSZORB® TVS family, engineered for robust transient suppression in automotive, industrial, and communications systems where AEC-Q101 compliance and precise clamping performance are mandatory.
FAQ
What does the "HE3" suffix indicate in P4KE39CHE3/54?
The HE3 suffix in P4KE39CHE3/54 denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. This distinguishes it from commercial-grade E3 variants and confirms its suitability for automotive applications requiring extended reliability validation beyond standard JEDEC testing.
Is P4KE39CHE3/54 unidirectional or bidirectional?
P4KE39CHE3/54 is a bidirectional TVS diode, as confirmed by the "CA" designation in its full part number (P4KE39CA variant) and absence of cathode band marking. Its symmetrical breakdown and clamping behavior in both polarities make it ideal for AC-coupled or polarity-agnostic signal lines like CAN, LIN, or sensor differential pairs.
What is the maximum clamping voltage of P4KE39CHE3/54 under surge conditions?
The maximum clamping voltage (VC) of P4KE39CHE3/54 is 53.9 V at 7.4 A peak pulse current with a 10/1000 μs waveform. This value is measured per industry-standard surge test conditions and defines the upper voltage limit imposed on protected circuitry during transient events.
Can P4KE39CHE3/54 replace P4KE39A in an existing design?
No - P4KE39CHE3/54 is bidirectional (P4KE39CA), while P4KE39A is unidirectional. Substituting them requires verifying circuit polarity constraints: P4KE39CHE3/54 may be used only where reverse conduction is acceptable and no DC bias conflicts exist; layout changes may be needed if cathode orientation was previously relied upon.
What packaging format is supplied for P4KE39CHE3/54?
P4KE39CHE3/54 is supplied in 13-inch diameter paper tape and reel packaging with a base quantity of 5500 pieces per reel (package code "54"). This format supports automated pick-and-place assembly and complies with EIA-481-D standards for axial lead components.
P4KE39CHE3/54 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE39CHE3/54 FAQ
1.How can I place an order for P4KE39CHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE39CHE3/54 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 P4KE39CHE3/54 reliable?
The price and inventory of P4KE39CHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE39CHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE39CHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE39CHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE39CHE3/54?
P4KE39CHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE39CHE3/54 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 P4KE39CHE3/54?
For technical support, including P4KE39CHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE39CHE3/54 requirements.
6.How does Aetrix verify that P4KE39CHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE39CHE3/54 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 P4KE39CHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE39CHE3/54?
All P4KE39CHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE39CHE3/54, 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 P4KE39CHE3/54 part is unused and in its original packaging.
Return procedure for P4KE39CHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE39CHE3/54 Tags
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