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Vishay General Semiconductor - Diodes Division P4KE30CAHE3/54
- Part No.:
- P4KE30CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE30CAHE3/54.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,540
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Product details
Overview
P4KE30CAHE3/54 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 30 V breakdown voltage (VBR min/max = 28.5–31.5 V), 400 W peak pulse power (10/1000 μs), 41.4 V maximum clamping voltage at 9.7 A peak pulse current, and AEC-Q101 qualification for automotive use.
For engineers reviewing the P4KE30CAHE3/54 datasheet, P4KE30CAHE3/54 pinout, P4KE30CAHE3/54 application, or P4KE30CAHE3/54 equivalent, key selection criteria include bidirectional clamping capability, DO-41 mechanical compatibility, 175 °C max junction temperature, low leakage (<1 μA at 25.6 V), 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 both forward and reverse directions, leveraging an avalanche breakdown mechanism to divert transient energy away from sensitive downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance under repetitive 10/1000 μs pulses at 0.01% duty cycle.
The P4KE30CAHE3/54 exhibits a temperature coefficient of +0.097 %/°C for VBR, enabling predictable voltage shift over temperature, and maintains ≤1 μA reverse leakage at its 25.6 V stand-off voltage - critical for low-power sensor interface and automotive control module designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V at 1.0 mA test current - defines reliable conduction onset range for bidirectional clamping |
| VWM | 25.6 V - maximum continuous working voltage before leakage exceeds 1 μA |
| VC @ IPPM | 41.4 V at 9.7 A - clamped voltage during 400 W transient, limiting stress on protected ICs |
| PPPM | 400 W (10/1000 μs waveform) - peak surge energy handling capacity per pulse |
| TJ max | +175 °C - enables operation in under-hood automotive environments without derating |
| Package | DO-41 (DO-204AL) - industry-standard axial leaded package with UL 94 V-0 epoxy body |
| Qualification | AEC-Q101 qualified - validated for automotive electronic systems requiring high reliability |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads; no polarity marking for bidirectional configuration; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry point in reverse bias | One end of symmetrical junction - identical electrical behavior to cathode in bidirectional mode |
| Cathode | Transient current entry point in forward bias | Other end of symmetrical junction - functionally interchangeable with anode for CA-type devices |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| 400 W peak pulse power (10/1000 μs) | Protects against IEC 61000-4-5 Level 3 (1 kV line-to-line, 2 kV line-to-earth) surges |
| AEC-Q101 qualification | Validated for automotive powertrain, body control, and ADAS modules requiring zero-failure field performance |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes voltage overshoot during fast transients, preserving margin for 3.3 V/5 V logic interfaces |
| UL 94 V-0 flammability rating | Molding compound self-extinguishes within 10 seconds - meets automotive and industrial safety standards |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface |
|---|---|
Use Scenario: Protecting LIN bus transceivers and microcontroller I/O pins from load dump and alternator ripple in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between power rail and ground, responding within <1 ns to transients exceeding 25.6 V. Use Value: Limits voltage to ≤41.4 V during 400 W surges, preventing latch-up or gate oxide damage in automotive-grade MCUs. | Use Scenario: Safeguarding analog front-end inputs of pressure/temperature sensors in factory automation PLCs exposed to relay coil flyback. IC Role / Device Role / Timing Role: Standby-mode protector across sensor supply and ground, maintaining <1 μA leakage at 25.6 V to avoid measurement offset. Use Value: Enables direct connection to 24 V industrial buses without additional series impedance or filtering complexity. |
| Telecom Line Surge Protection | Consumer USB Port ESD Clamping |
Use Scenario: Shielding Ethernet PHY power rails (3.3 V or 5 V) from lightning-induced surges on PoE-powered network switches. IC Role / Device Role / Timing Role: Primary-level TVS on DC input stage, absorbing up to 400 W single-event transients while holding clamping voltage below IC absolute maximum ratings. Use Value: Eliminates need for multi-stage protection schemes, reducing BOM count and PCB area in space-constrained telecom modules. | Use Scenario: ESD suppression on VBUS and D+/D− lines of USB 2.0 ports in smart home hubs subjected to ±8 kV contact discharge (IEC 61000-4-2). IC Role / Device Role / Timing Role: Secondary-level clamp after series impedance, activated only during >25.6 V events to avoid interfering with normal USB signaling. Use Value: Provides robust 400 W surge headroom beyond ESD requirements, extending product lifetime in high-handling consumer environments. |
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 (SMB), 33 V VBR, 600 W PPPM, lower clamping voltage (53.3 V @ 11.8 A) | Surface-mount footprint; higher power rating but larger board area than axial DO-41 | Select SMBJ33CA when SMT assembly and higher surge margin are prioritized over through-hole compatibility. |
| 1.5KE33CA | DO-201AD package, 33 V VBR, 1500 W PPPM, higher IFSM (200 A), larger thermal mass | Through-hole but physically larger; suited for primary AC/DC input protection rather than signal-line clamping | Choose 1.5KE33CA for mains-side protection where higher energy absorption and thermal stability outweigh size constraints. |
Compared with SMBJ33CA and 1.5KE33CA, the P4KE30CAHE3/54 offers optimal balance of compact DO-41 form factor, AEC-Q101 qualification, and precise 30 V clamping threshold - making it ideal for space-limited, automotive-qualified secondary-side protection where exact voltage coordination with 3.3 V/5 V logic rails is required.
Availability
P4KE30CAHE3/54 is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, telecom infrastructure, and consumer USB port protection requiring stable component supply and full traceability.
Supply support for P4KE30CAHE3/54 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 automotive-grade qualification.
The P4KE30CAHE3/54 belongs to Vishay's TRANSZORB® family of TVS diodes - engineered specifically for robust, cost-effective transient suppression in harsh environments including automotive, industrial, and telecom applications.
FAQ
What is the breakdown voltage range for P4KE30CAHE3/54?
The P4KE30CAHE3/54 has a guaranteed breakdown voltage range of 28.5 V to 31.5 V at 1.0 mA test current, measured in both directions due to its bidirectional construction. This tight VBR window ensures consistent clamping behavior across temperature and manufacturing lots, directly supporting design margin calculations for 3.3 V and 5 V system rails.
Is P4KE30CAHE3/54 suitable for automotive applications?
Yes, the P4KE30CAHE3/54 carries AEC-Q101 qualification and is explicitly rated for automotive use. Its DO-41 package, 175 °C maximum junction temperature, and glass-passivated junction meet stringent reliability requirements for engine control units, body electronics, and ADAS modules - confirmed by Vishay's official documentation and test reports.
What does the "HE3" suffix indicate in P4KE30CAHE3/54?
The "HE3" suffix denotes RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance. Unlike standard "E3" variants, HE3 parts undergo enhanced process controls for automotive-grade reliability, including stricter plating adhesion and thermal cycling validation - critical for long-life deployment in vehicular systems.
How does P4KE30CAHE3/54 differ from unidirectional P4KE30A?
The P4KE30CAHE3/54 is bidirectional with symmetrical clamping in both polarities and no polarity marking, whereas P4KE30A is unidirectional with a cathode band. The CA version supports AC-coupled or floating signal line protection, while the A version is limited to DC-biased circuits - a fundamental functional distinction affecting layout and system architecture.
What is the maximum clamping voltage of P4KE30CAHE3/54 during a surge event?
The P4KE30CAHE3/54 clamps to a maximum of 41.4 V at its rated 9.7 A peak pulse current (10/1000 μs waveform). This value is measured under standardized conditions and represents the worst-case voltage seen by protected circuitry - essential for verifying safe operating margins relative to downstream IC absolute maximum ratings.
P4KE30CAHE3/54 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):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 9.7A
- 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)
P4KE30CAHE3/54 FAQ
1.How can I place an order for P4KE30CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE30CAHE3/54 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 P4KE30CAHE3/54 reliable?
The price and inventory of P4KE30CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE30CAHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE30CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE30CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE30CAHE3/54?
P4KE30CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE30CAHE3/54 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 P4KE30CAHE3/54?
For technical support, including P4KE30CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE30CAHE3/54 requirements.
6.How does Aetrix verify that P4KE30CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE30CAHE3/54 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 P4KE30CAHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE30CAHE3/54?
All P4KE30CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE30CAHE3/54, 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 P4KE30CAHE3/54 part is unused and in its original packaging.
Return procedure for P4KE30CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE30CAHE3/54 Tags
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