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Vishay General Semiconductor - Diodes Division P4KE56CA-E3/54
- Part No.:
- P4KE56CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE56CA-E3/54.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,845
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Product details
Overview
P4KE56CA-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 56 V breakdown voltage (VBR min/max = 53.2–58.8 V), 400 W peak pulse power (10/1000 μs), 77.0 V maximum clamping voltage at 5.2 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the P4KE56CA-E3/54 datasheet, P4KE56CA-E3/54 pinout, P4KE56CA-E3/54 application, or P4KE56CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 leaded package compatibility with through-hole PCB assembly, junction temperature range of –55 °C to +175 °C, 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 transient overvoltages in both polarities without polarity marking. Its glass-passivated junction enables fast response time (<1 ns), low incremental surge resistance, and stable clamping performance across temperature.
The P4KE56CA-E3/54 delivers 400 W peak pulse power under standardized 10/1000 μs waveform conditions at 0.01% duty cycle, with thermal resistance RθJL = 66 °C/W and RθJA = 100 °C/W. It supports continuous power dissipation of 1.5 W at TL = 75 °C and withstands 8.3 ms half-sine surge currents up to 40 A in unidirectional variants - though P4KE56CA is bidirectional and thus excludes IFSM rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V at 1.0 mA test current - defines reliable conduction onset in both directions |
| VWM | 47.8 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 77.0 V at 5.2 A - clamped voltage during 400 W transient, limiting downstream stress |
| PPPM | 400 W - peak surge handling capacity per 10/1000 μs waveform, critical for ESD/lightning immunity |
| TJ Range | –55 °C to +175 °C - enables operation in under-hood automotive and industrial environments |
| Package | DO-41 (DO-204AL) - standard axial-leaded through-hole package with UL 94 V-0 molded epoxy body |
| Qualification | AEC-Q101 qualified - validated for automotive-grade reliability including temperature cycling and humidity testing |
Pinout & Package
DO-41 (DO-204AL) package: axial-leaded, glass-passivated silicon junction in molded epoxy case; no polarity marking for bidirectional types; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; common terminal in bidirectional operation | Connected to protected line; forms symmetrical clamping path with cathode during either polarity surge |
| Cathode | Current exit point in forward bias; common terminal in bidirectional operation | Connected to reference plane (e.g., ground or rail); completes low-impedance surge shunt path |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables <1 ns response time and stable VBR tolerance over lifetime and temperature |
| 400 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 3 (1 kV surge) requirements for industrial and automotive interfaces |
| Bidirectional configuration (CA suffix) | Eliminates need for polarity awareness in AC-coupled or floating signal lines like CAN, RS-485, or sensor bridges |
| AEC-Q101 qualification | Validated for automotive under-hood applications including engine control modules and body electronics |
| UL 94 V-0 molding compound | Ensures flame-retardant behavior in high-reliability systems where fire safety is mandated |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Primary clamping device placed between power rail and ground, absorbing energy before it reaches LDOs or microcontrollers. Use Value: Clamps surges up to 77.0 V at 5.2 A, preventing damage to 5 V or 3.3 V logic while maintaining DO-41 footprint compatibility with legacy designs. | Use Scenario: Shielding analog outputs of pressure or temperature sensors from ESD events during handling or cable coupling. IC Role / Device Role / Timing Role: Bidirectional shunt clamp on differential or single-ended sensor output lines referenced to chassis ground. Use Value: Symmetrical clamping ensures protection regardless of transient polarity, with <1 ns response preserving signal integrity in sub-100 kHz measurement bandwidths. |
| Telecom Line Interface Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding RS-485 transceivers in building automation networks exposed to induced lightning surges. IC Role / Device Role / Timing Role: Secondary-level TVS on data pair lines, coordinated with primary gas discharge tube (GDT) stages. Use Value: 47.8 V stand-off voltage allows normal 5 V or 12 V bus operation while clamping to 77.0 V - within RS-485 receiver common-mode range limits. | Use Scenario: Suppressing inductive kickback from brushed DC motors in washing machines or HVAC blowers. IC Role / Device Role / Timing Role: Across-the-rail clamp on motor terminals to divert flyback energy during MOSFET turn-off. Use Value: 400 W pulse rating handles repetitive switching surges; DO-41 package allows direct mounting near motor connectors with minimal trace inductance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CA | Surface-mount SMB package; same 58 V nominal VBR, but higher 600 W PPPM rating | Requires PCB redesign for SMT layout; better suited for space-constrained consumer electronics | Select when board area is limited and reflow assembly is preferred over through-hole wave soldering |
| 1.5KE56CA | Same DO-41 package and 56 V rating, but 1500 W PPPM; larger die size increases capacitance and thermal mass | Higher energy handling suits infrequent high-energy transients (e.g., utility grid coupling), not repetitive switching | Choose for legacy DO-41 compatibility with greater surge margin where 1500 W capability is verified necessary |
Compared with SMBJ58CA and 1.5KE56CA, the P4KE56CA-E3/54 offers optimal balance of proven automotive qualification, compact DO-41 form factor, and 400 W capability sufficient for most ISO 7637-2 and IEC 61000-4-x compliance needs - without over-specifying cost or board space.
Availability
P4KE56CA-E3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor systems, telecom interface circuits, and consumer appliance designs requiring stable component supply and long-term lifecycle support.
Supply support for P4KE56CA-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 and application-specific validation.
The P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust transient suppression in harsh environments - including automotive, industrial, and telecom infrastructure - where repeatable clamping performance and AEC-Q101 compliance are mandatory.
FAQ
What does the "CA" suffix indicate in P4KE56CA-E3/54?
The "CA" suffix in P4KE56CA-E3/54 denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage suppression in both polarities. Unlike unidirectional variants (e.g., P4KE56A), it has no cathode band marking and functions identically whether positive or negative transients occur - essential for AC-coupled or floating signal lines such as CAN bus or sensor bridges.
Is P4KE56CA-E3/54 suitable for automotive applications?
Yes, P4KE56CA-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its –55 °C to +175 °C operating junction temperature range, glass-passivated junction, and DO-41 package with matte tin-plated leads meet stringent automotive reliability requirements. It is commonly deployed in engine control units, body control modules, and infotainment power rails where load dump and ESD protection are critical.
What is the maximum clamping voltage of P4KE56CA-E3/54 and how is it measured?
The maximum clamping voltage (VC) of P4KE56CA-E3/54 is 77.0 V, measured at peak pulse current (IPPM) of 5.2 A under standardized 10/1000 μs waveform conditions. This value represents the upper limit of voltage imposed on the protected circuit during a worst-case transient event, ensuring downstream components remain within safe operating voltage margins.
How does P4KE56CA-E3/54 differ from P4KE56A?
P4KE56CA-E3/54 is bidirectional with symmetrical clamping in both polarities and no polarity marking, whereas P4KE56A is unidirectional with a cathode band and only suppresses positive transients relative to its marked cathode. The P4KE56CA-E3/54 also omits IFSM (forward surge current) rating since it lacks defined anode/cathode orientation - making it ideal for AC or floating applications where polarity cannot be guaranteed.
What packaging and reel information applies to P4KE56CA-E3/54?
P4KE56CA-E3/54 ships in 13-inch diameter paper tape and reel format with a base quantity of 5500 units per reel (package code "54"). The "E3" suffix confirms RoHS-compliant, commercial-grade construction with JESD 201 Class 1A whisker resistance. Lead finish is matte tin, ensuring compatibility with J-STD-002 solderability standards and wave solder processes up to 275 °C for 10 seconds.
P4KE56CA-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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 5.2A
- 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)
P4KE56CA-E3/54 FAQ
1.How can I place an order for P4KE56CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE56CA-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 P4KE56CA-E3/54 reliable?
The price and inventory of P4KE56CA-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 P4KE56CA-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE56CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE56CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE56CA-E3/54?
P4KE56CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE56CA-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 P4KE56CA-E3/54?
For technical support, including P4KE56CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE56CA-E3/54 requirements.
6.How does Aetrix verify that P4KE56CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE56CA-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 P4KE56CA-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE56CA-E3/54?
All P4KE56CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE56CA-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 P4KE56CA-E3/54 part is unused and in its original packaging.
Return procedure for P4KE56CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE56CA-E3/54 Tags
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