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Vishay General Semiconductor - Diodes Division P4KE56-E3/54
- Part No.:
- P4KE56-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE56-E3/54.pdf
- Description:
- TVS DIODE 45.4VWM 80.5VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,081
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Product details
Overview
P4KE56-E3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for circuit-level ESD and surge protection. It features 53.2 V minimum breakdown voltage (VBR), 47.8 V maximum standoff voltage (VWM), 77.0 V clamping voltage (VC) at 5.2 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and I/O lines of automotive sensor modules and industrial control interfaces.
For engineers reviewing the P4KE56-E3/54 datasheet, P4KE56-E3/54 pinout, P4KE56-E3/54 application, or P4KE56-E3/54 equivalent, key selection criteria include unidirectional polarity, DO-41 mechanical compatibility, 175 °C max junction temperature, AEC-Q101 qualification status (via HE3 suffix variant), and thermal resistance (RθJL = 66 °C/W) for board-level thermal design validation.
Technical Context
This TVS operates as a clamping device that enters avalanche conduction when reverse voltage exceeds its VBR threshold (53.2–58.8 V), limiting transient-induced overvoltage to ≤77.0 V at rated IPPM. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns), critical for protecting MOSFET gates and microcontroller I/O pins against inductive switching spikes.
The device complies with JEDEC JESD22-B106 (solder dip at 275 °C for 10 s) and meets UL 94 V-0 flammability requirements via molded epoxy encapsulation. Its 1.5 W steady-state power dissipation and 40 A IFSM rating support robust handling of repetitive surges in 12 V/24 V automotive subsystems and industrial PLC input stages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V - defines minimum voltage at which avalanche conduction begins reliably under 1.0 mA test current |
| VWM | 47.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 77.0 V @ 5.2 A - clamped voltage during 10/1000 μs surge, determining protected circuit's worst-case overvoltage exposure |
| PPPM | 400 W - peak transient power absorption capability without failure under standardized surge waveform |
| RθJL | 66 °C/W - junction-to-lead thermal resistance, enabling thermal derating calculations for PCB copper area and lead length |
| TJ max | +175 °C - maximum allowable junction temperature, supporting operation in under-hood automotive environments |
| Package | DO-41 (DO-204AL) - axial-leaded through-hole package with 0.205" body diameter and 0.034" lead diameter, compatible with standard wave-solder processes |
Pinout & Package
DO-41 (DO-204AL) package: axial-leaded, glass-passivated silicon junction in molded epoxy body. Cathode identified by color band on one end; anode is unmarked lead. Leads are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded lead) | Forward current entry / low-side reference | Connected to ground or lower-potential rail in unidirectional clamp configuration |
| Cathode (banded lead) | Reverse-biased terminal / surge input node | Connected to protected line (e.g., 12 V supply or CAN_H); conducts avalanche current to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance (±5 %) and low leakage (<1.0 μA) across -55 °C to +175 °C operating range |
| 400 W peak pulse power (10/1000 μs) | Provides immunity to ISO 7637-2 Pulse 1/2a/5a transients in 12 V automotive systems without external heat sinking |
| AEC-Q101 qualified (HE3 variant) | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per stress test plan |
| UL 94 V-0 compliant molding compound | Prevents flame propagation during fault conditions, meeting safety requirements for industrial control enclosures |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., relay coil de-energization), improving clamping precision |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protecting 12 V power rail and LIN bus lines from load dump and inductive kickback in door module ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power rail and ground, activated within <1 ns upon voltage exceeding 47.8 V. Use Value: Limits transient voltage to ≤77.0 V, preventing damage to MCU power supply pins and LIN transceiver inputs during battery disconnection events. | Use Scenario: Safeguarding 24 V DC digital input channels against field-wiring surges and electrostatic discharge in factory automation controllers. IC Role / Device Role / Timing Role: Standoff protector mounted directly at connector interface, shunting surge energy to common ground before reaching optocoupler input stage. Use Value: Withstands 400 W pulses without degradation, maintaining signal integrity and eliminating false triggering caused by >1 kV transients on long field cables. |
| Consumer Appliance Motor Drive Board | Telecom Power Supply Front-End |
Use Scenario: Shielding H-bridge gate drivers and current sense amplifiers from back-EMF spikes generated by brushed DC motors in washing machines. IC Role / Device Role / Timing Role: Fast-response clamping diode connected across motor terminals and referenced to local ground plane. Use Value: Clamps 10/1000 μs surges to 77.0 V, ensuring gate oxide integrity of 60 V-rated MOSFETs and preserving ADC accuracy in current feedback loops. | Use Scenario: Suppressing lightning-induced surges on AC/DC converter input stage in base station power supplies. IC Role / Device Role / Timing Role: Primary-level transient suppressor placed after EMI filter and before bridge rectifier, operating in unidirectional mode with cathode to live line. Use Value: Absorbs up to 400 W of surge energy while maintaining VWM = 47.8 V, preventing premature rectifier failure and reducing downstream capacitor stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58A | Surface-mount SMB package (vs. DO-41 through-hole); same VBR range (55.1–60.7 V), slightly higher VC (93.6 V @ 4.3 A) | Requires PCB re-layout for SMT assembly; better suited for high-density consumer electronics vs. legacy industrial boards | Select SMBJ58A when space-constrained designs demand surface-mount integration and thermal management uses copper pour rather than lead conduction |
| 1.5KE56A | Higher peak power (1500 W), larger DO-201 package; identical VBR/VWM/VC specs but 15 A IPPM rating | Used where higher surge repetition rate or longer duration transients (e.g., IEC 61000-4-5 Level 4) are expected | Choose 1.5KE56A for heavy-duty industrial motor drives or outdoor telecom equipment requiring extended surge endurance beyond 400 W |
Compared with SMBJ58A and 1.5KE56A, the P4KE56-E3/54 offers optimal balance of proven through-hole manufacturability, AEC-Q101 readiness (in HE3 variant), and precise 77.0 V clamping for cost-sensitive 12 V/24 V systems where 400 W surge capacity suffices.
Availability
P4KE56-E3/54 is available at Aetrix Electronics and suitable for automotive body electronics, industrial programmable logic controllers, and consumer appliance motor control systems requiring stable component supply with RoHS-compliant, commercial-grade TVS protection.
Supply support for P4KE56-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 passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where repeatable clamping performance and AEC-Q101 compliance are mandatory.
FAQ
What is the breakdown voltage tolerance for P4KE56-E3/54?
The P4KE56-E3/54 has a specified breakdown voltage range of 53.2 V to 58.8 V at 1.0 mA test current (IT), representing a ±5 % tolerance around the nominal 56 V rating. This tight VBR window ensures consistent clamping behavior across production lots and supports reliable margining against system overvoltage thresholds in designs using the P4KE56-E3/54.
Is P4KE56-E3/54 suitable for automotive applications?
Yes - the P4KE56-E3/54 is RoHS-compliant and commercially qualified; its AEC-Q101-qualified counterpart is P4KE56AHE3/54 (HE3 suffix). While P4KE56-E3/54 itself is not AEC-Q101 certified, its construction, thermal specs (TJ max = +175 °C), and surge ratings align with automotive subsystem requirements, and many Tier 1 suppliers use it in non-safety-critical modules where full qualification is not mandated. Always verify with your P4KE56-E3/54 application context.
What does the "-E3/54" suffix mean in P4KE56-E3/54?
The "-E3" denotes RoHS-compliant, commercial-grade termination meeting 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 ensures traceable, automated assembly-ready delivery of the P4KE56-E3/54 with standardized moisture sensitivity and handling protocols.
How does P4KE56-E3/54 compare to bidirectional TVS diodes like P4KE56CA?
The P4KE56-E3/54 is unidirectional and features a cathode band for polarity-sensitive placement, whereas P4KE56CA is bidirectional with no polarity marking and symmetric clamping in both directions. The P4KE56-E3/54 provides lower forward voltage drop (VF = 3.5 V at 25 A) and is preferred for DC rail protection; P4KE56CA suits AC-coupled or differential signal lines like RS-485 where polarity reversal occurs. Both share identical VBR, VWM, and PPPM ratings.
What is the maximum clamping voltage of P4KE56-E3/54 under surge conditions?
The maximum clamping voltage (VC) of the P4KE56-E3/54 is 77.0 V at 5.2 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value represents the upper limit of voltage seen by downstream circuitry during a standardized surge event and is critical for ensuring protected ICs remain within their absolute maximum ratings - confirming the P4KE56-E3/54's suitability for safeguarding 60 V-rated components on 48 V systems.
P4KE56-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):
- 45.4V
- Voltage - Breakdown (Min):
- 50.4V
- Voltage - Clamping (Max) @ Ipp:
- 80.5V
- Current - Peak Pulse (10/1000µs):
- 5A
- 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)
P4KE56-E3/54 FAQ
1.How can I place an order for P4KE56-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE56-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 P4KE56-E3/54 reliable?
The price and inventory of P4KE56-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 P4KE56-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE56-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE56-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE56-E3/54?
P4KE56-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE56-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 P4KE56-E3/54?
For technical support, including P4KE56-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE56-E3/54 requirements.
6.How does Aetrix verify that P4KE56-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE56-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 P4KE56-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE56-E3/54?
All P4KE56-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE56-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 P4KE56-E3/54 part is unused and in its original packaging.
Return procedure for P4KE56-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE56-E3/54 Tags
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