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Vishay General Semiconductor - Diodes Division P4KE24CAHE3/54
- Part No.:
- P4KE24CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE24CAHE3/54.pdf
- Description:
- TVS DIODE 20.5VWM 33.2VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:3,119
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Product details
Overview
P4KE24CAHE3/54 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), 20.5 V standoff voltage (VWM), 33.2 V clamping voltage at 12 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform.
For engineers reviewing the P4KE24CAHE3/54 datasheet, P4KE24CAHE3/54 pinout, P4KE24CAHE3/54 application, or P4KE24CAHE3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification for automotive use, DO-41 mechanical compatibility, low leakage (<1 μA at VWM), and thermal resistance (RθJL = 66 °C/W) for reliable surge handling in constrained layouts.
Technical Context
This device operates as a voltage-clamping protector using an avalanche breakdown mechanism, with symmetrical bidirectional conduction enabling suppression of both positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance for consistent clamping performance under repetitive 10/1000 μs pulses.
The P4KE24CAHE3/54 is rated for 175 °C maximum junction temperature and derates linearly above 25 °C ambient, supporting operation in harsh environments. Its 1.5 W steady-state power dissipation and 400 W transient capability are defined per JEDEC-standard waveforms, with thermal resistance values validated for lead-temperature-limited mounting conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 22.8 V / 25.2 V at 1.0 mA test current - defines precise clamping onset threshold in both directions |
| VWM | 20.5 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 33.2 V at 12.0 A - clamped voltage during 400 W transient, limiting downstream stress |
| PPPM | 400 W - peak pulse power handling with 10/1000 μs waveform, duty cycle ≤ 0.01 % |
| IPPM | 12.0 A - peak pulse current corresponding to 400 W clamping at 33.2 V |
| TJ max. | +175 °C - enables use in under-hood automotive or industrial high-temperature zones |
| RθJL | 66 °C/W - junction-to-lead thermal resistance supports reliable heat transfer to PCB copper |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded molded epoxy case with matte tin-plated leads; RoHS-compliant and AEC-Q101 qualified (HE3 suffix); meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction terminals | No polarity marking; identical electrical behavior in either direction - simplifies layout and eliminates orientation errors |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and surge endurance |
| Glass passivated junction | Ensures ±5% VBR tolerance and long-term stability under thermal and electrical stress |
| 400 W peak pulse power (10/1000 μs) | Handles common ISO 7637-2 and IEC 61000-4-5 surge events without degradation |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage exposure to protected ICs such as CAN transceivers or sensor interfaces |
| 1 μA max reverse leakage at VWM | Prevents excessive standby current in battery-powered or low-power sensor nodes |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V power rails in engine control units against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Bidirectional TVS clamping transient energy before it reaches DC-DC regulators or microcontrollers. Use Value: Withstands 400 W surges while maintaining 33.2 V clamping, preventing latch-up or permanent damage to downstream 3.3 V/5 V logic. |
Use Scenario: Shielding analog outputs and digital I/O of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: Fast-response voltage clamp on sensor signal lines interfacing with PLCs or data acquisition systems. Use Value: Sub-1 ns response time and 1 μA leakage preserve signal integrity and battery life in 4–20 mA or RS-485 sensor nodes. |
| Consumer Equipment AC/DC Input Protection | Telecom Line Card Surge Suppression |
Use Scenario: Safeguarding primary-side rectifier circuits in wall adapters and power supplies from lightning-induced surges. IC Role / Device Role / Timing Role: Front-end transient suppressor placed across bridge rectifier inputs or bulk capacitor terminals. Use Value: 20.5 V VWM allows safe operation with 18 V RMS input; 175 °C TJ max supports enclosed thermal environments. |
Use Scenario: Secondary-side protection on Ethernet PHY or xDSL line interface cards exposed to induced surges. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp on differential pairs to limit common-mode transients. Use Value: Symmetrical clamping preserves signal balance; DO-41 footprint enables compact placement near connectors without layout asymmetry. |
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 | DO-214AA package; 600 W PPPM; lower RθJA (50 °C/W); higher VC (38.9 V @ 12.3 A) | Better thermal performance in surface-mount designs; less suitable for through-hole legacy boards | Select when board space permits SMT and higher surge margin is required |
| 1.5KE24CA | DO-201AD package; 1500 W PPPM; larger body; VC = 38.9 V @ 38.8 A | Higher power handling for heavy-duty industrial mains protection; not AEC-Q101 qualified | Choose for non-automotive 12 V systems needing >400 W surge capacity |
Compared with SMBJ24CA and 1.5KE24CA, the P4KE24CAHE3/54 offers AEC-Q101 compliance and DO-41 through-hole compatibility at 400 W rating - making it optimal for cost-sensitive, automotive-qualified through-hole designs where moderate surge levels and proven mechanical robustness are prioritized.
Availability
P4KE24CAHE3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, consumer power supplies, and telecom line card designs requiring stable component supply with full traceability and lifecycle support.
Supply support for P4KE24CAHE3/54 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 and application-specific performance.
The P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, standardized transient suppression in automotive, industrial, and consumer power and signal lines - balancing clamping precision, surge capacity, and qualification rigor.
FAQ
What is the breakdown voltage range for P4KE24CAHE3/54?
The P4KE24CAHE3/54 has a specified breakdown voltage (VBR) range of 22.8 V to 25.2 V at 1.0 mA test current, measured in both directions due to its bidirectional construction. This tight ±5% tolerance ensures predictable clamping onset and supports designs requiring precise overvoltage thresholds, such as 24 V nominal systems with ±10% regulation margins.
Is P4KE24CAHE3/54 suitable for automotive applications?
Yes, the P4KE24CAHE3/54 is AEC-Q101 qualified (indicated by the HE3 suffix), meaning it has passed stress tests for temperature cycling, humidity bias, mechanical shock, and surge endurance required for automotive under-hood and cabin electronics. Its 175 °C maximum junction temperature and DO-41 mechanical robustness further validate its suitability for automotive power and sensor line protection.
What does the "CA" suffix mean in P4KE24CAHE3/54?
The "CA" suffix in P4KE24CAHE3/54 denotes a bidirectional configuration - the device provides symmetrical transient suppression for both positive and negative voltage excursions, with no cathode marking and identical electrical characteristics in either direction. This differs from unidirectional "A" variants, which require correct polarity orientation and exhibit forward conduction below VWM.
How does P4KE24CAHE3/54 compare to P4KE24AHE3/54 in practical use?
The P4KE24CAHE3/54 is bidirectional, while P4KE24AHE3/54 is unidirectional. In practice, the CA version protects against transients of either polarity without regard to installation orientation, whereas the A version must be installed with the banded end toward the most negative potential. The CA variant also exhibits zero DC forward voltage drop in normal operation, unlike the A version's ~3.5 V forward drop at 25 A.
What is the clamping voltage of P4KE24CAHE3/54 at its rated peak pulse current?
The P4KE24CAHE3/54 clamps to a maximum of 33.2 V at its rated peak pulse current (IPPM) of 12.0 A, measured with a 10/1000 μs waveform. This clamping voltage directly determines the maximum stress imposed on downstream circuitry; for example, it ensures protected 24 V logic interfaces remain below their absolute maximum ratings during surge events.
P4KE24CAHE3/54 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:
- -
- 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)
P4KE24CAHE3/54 FAQ
1.How can I place an order for P4KE24CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE24CAHE3/54 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 P4KE24CAHE3/54 reliable?
The price and inventory of P4KE24CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE24CAHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE24CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE24CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE24CAHE3/54?
P4KE24CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE24CAHE3/54 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 P4KE24CAHE3/54?
For technical support, including P4KE24CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE24CAHE3/54 requirements.
6.How does Aetrix verify that P4KE24CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE24CAHE3/54 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 P4KE24CAHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE24CAHE3/54?
All P4KE24CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE24CAHE3/54, 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 P4KE24CAHE3/54 part is unused and in its original packaging.
Return procedure for P4KE24CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE24CAHE3/54 Tags
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