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Vishay General Semiconductor - Diodes Division P4KE24CA-E3/54
- Part No.:
- P4KE24CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE24CA-E3/54.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,904
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Product details
Overview
P4KE24CA-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 24 V breakdown voltage (VBR min/max = 22.8 V / 25.2 V), 400 W peak pulse power (10/1000 μs), and clamps to ≤33.2 V at 12 A peak pulse current - used in automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the P4KE24CA-E3/54 datasheet, P4KE24CA-E3/54 pinout, P4KE24CA-E3/54 application, or P4KE24CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 mechanical compatibility, AEC-Q101 qualification status, thermal resistance (RθJL = 66 °C/W), and compliance with IEC 61000-4-2/4-4/4-5 transient immunity standards.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche breakdown in both polarities, enabling robust protection of AC-coupled or floating signal paths without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5 %) and low dynamic impedance under surge conditions.
The P4KE24CA-E3/54 delivers 400 W peak pulse power per 10/1000 μs waveform at TA = 25 °C, derating linearly above 25 °C with 0.5 %/°C slope per Fig. 2, and supports 1.5 W steady-state power dissipation at TL = 75 °C on infinite heatsink - critical for sustained overvoltage events in automotive ECUs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 22.8 V / 25.2 V at IT = 1.0 mA - defines precise clamping onset threshold for bidirectional surge suppression |
| VWM | 20.5 V - maximum continuous reverse working voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | ≤33.2 V at 12.0 A - actual clamped voltage during 400 W transient, limiting downstream IC stress |
| PPPM | 400 W (10/1000 μs waveform) - standardized surge energy handling capacity per IEC 61000-4-5 |
| RθJL | 66 °C/W - junction-to-lead thermal resistance enables reliable power dissipation in leaded PCB mounting |
| TJ max | +175 °C - high-temperature operation supports under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: DO-41 (DO-204AL), molded epoxy body with matte tin-plated leads; RoHS-compliant, commercial grade (E3 suffix); no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | No functional distinction between terminals - either lead serves as input/output for transient clamping |
| Lead 1 / Lead 2 | Current path to PCB copper pour or chassis ground | Thermal conduction path; requires ≥10 mm lead length for rated RθJA = 100 °C/W |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures ±5 % VBR tolerance and stable long-term leakage performance (<1.0 μA at VWM) |
| 400 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 4 (4 kV) surge immunity when properly laid out with low-inductance grounding |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules and ADAS sensor interfaces |
| Low incremental surge resistance | Enables fast voltage clamping response (<1 ns) and minimal overshoot during fast-rising transients |
| UL 94 V-0 molding compound | Prevents flame propagation in enclosed automotive or industrial enclosures during fault conditions |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., oxygen, pressure) from load dump and inductive switching spikes in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across differential signal pair or supply rail to limit transient excursions below IC absolute maximum ratings. Use Value: Clamps 400 W surges to ≤33.2 V while maintaining <1.0 μA leakage at 20.5 V operating voltage - preserving signal integrity and preventing latch-up. |
Use Scenario: Shielding digital input modules in programmable logic controllers from field-wiring induced transients (e.g., relay coil de-energization, motor contactor bounce). IC Role / Device Role / Timing Role: Primary front-end TVS on 24 V DC input channels, mounted directly at connector entry point to minimize trace inductance. Use Value: Withstands repetitive 10/1000 μs pulses at 0.01 % duty cycle and maintains stable VBR after 1000 surge events - ensuring long-term BOM stability. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression on 5–24 V DC outputs of wall adapters and USB PD power supplies exposed to system-level ESD and conducted noise. IC Role / Device Role / Timing Role: Standoff-rated clamp parallel to output capacitor, activated only during abnormal overvoltage events exceeding 20.5 V. Use Value: Delivers 400 W surge handling without degradation at +85 °C ambient - meeting UL 62368-1 transient immunity requirements for end-product safety certification. |
Use Scenario: Protecting Ethernet PHY interfaces and RS-485 transceivers in network switches and base station equipment from lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: Bidirectional shunt protector on differential data lines, selected for symmetry to avoid skew between positive/negative half-cycles. Use Value: Matches 100 Ω differential impedance with <0.5 pF junction capacitance (typ.) - minimizing signal distortion at 100 Mbps+ data rates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ24CA | Same VBR range (22.8–25.2 V) but SMC (DO-214AB) package; 600 W PPPM; lower RθJA (50 °C/W) | Higher power density and surface-mount compatibility; unsuitable for through-hole legacy designs | Select SMBJ24CA when board space is constrained and reflow assembly is used; verify pad thermal relief for 600 W surge dissipation |
| 1.5KE24CA | Same DO-41 package but higher PPPM = 1500 W; VC = 38.9 V at 38.8 A; larger junction area | Used where higher single-event energy absorption is required (e.g., mains-connected equipment) | Choose 1.5KE24CA for industrial AC input stages; avoid in low-voltage logic circuits due to higher clamping voltage |
Compared with P4KE24CA-E3/54, SMBJ24CA offers superior power density and modern SMT integration but requires PCB redesign, while 1.5KE24CA provides greater surge margin at the cost of higher clamping voltage and larger thermal mass - making P4KE24CA-E3/54 optimal for cost-sensitive, through-hole automotive and industrial I/O protection where 400 W suffices.
Availability
P4KE24CA-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and consumer power adapter secondary-side protection requiring stable component supply, AEC-Q101 qualification, and DO-41 through-hole compatibility.
Supply support for P4KE24CA-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, standardized transient suppression in automotive, industrial, and telecom infrastructure - balancing clamping precision, surge endurance, and qualification rigor.
FAQ
What is the breakdown voltage tolerance for P4KE24CA-E3/54?
The P4KE24CA-E3/54 has a specified breakdown voltage range of 22.8 V to 25.2 V at test current IT = 1.0 mA, corresponding to a ±5 % tolerance around the nominal 24 V rating. This tight tolerance ensures consistent clamping behavior across production lots and supports reliable design margining in safety-critical applications like automotive sensor interfaces.
Is P4KE24CA-E3/54 suitable for automotive applications?
Yes, P4KE24CA-E3/54 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its 175 °C maximum junction temperature, glass-passivated junction stability, and validation across temperature cycling, HTRB, and ESD tests confirm suitability for engine control units, body electronics, and ADAS sensor protection circuits.
How does the bidirectional configuration of P4KE24CA-E3/54 affect circuit layout?
The bidirectional nature of P4KE24CA-E3/54 eliminates polarity concerns during placement - either lead may connect to signal or ground. Layout best practice requires symmetric, low-inductance routing to ground plane and placement within 5 mm of protected IC pins to maintain sub-33.2 V clamping performance during 10/1000 μs transients.
What is the maximum clamping voltage of P4KE24CA-E3/54 under surge conditions?
The P4KE24CA-E3/54 clamps to a maximum of 33.2 V when subjected to its rated 12.0 A peak pulse current (IPPM), derived from the 400 W peak pulse power rating with a 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and forms the basis for downstream IC overvoltage margining.
Does P4KE24CA-E3/54 require a heatsink for standard operation?
No external heatsink is required for P4KE24CA-E3/54 under typical transient conditions, as its 400 W rating applies to non-repetitive pulses. For continuous power dissipation, the device supports 1.5 W at TL = 75 °C using standard DO-41 lead mounting; thermal design should ensure ≥10 mm lead length to achieve the specified RθJA = 100 °C/W.
P4KE24CA-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):
- 20.5V
- Voltage - Breakdown (Min):
- 22.8V
- Voltage - Clamping (Max) @ Ipp:
- 33.2V
- Current - Peak Pulse (10/1000µs):
- 12A
- 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)
P4KE24CA-E3/54 FAQ
1.How can I place an order for P4KE24CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE24CA-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 P4KE24CA-E3/54 reliable?
The price and inventory of P4KE24CA-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 P4KE24CA-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE24CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE24CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE24CA-E3/54?
P4KE24CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE24CA-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 P4KE24CA-E3/54?
For technical support, including P4KE24CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE24CA-E3/54 requirements.
6.How does Aetrix verify that P4KE24CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE24CA-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 P4KE24CA-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE24CA-E3/54?
All P4KE24CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE24CA-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 P4KE24CA-E3/54 part is unused and in its original packaging.
Return procedure for P4KE24CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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