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Vishay General Semiconductor - Diodes Division P4KE47CAHE3/54
- Part No.:
- P4KE47CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE47CAHE3/54.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:5,500
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Product details
Overview
P4KE47CAHE3/54 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 47 V breakdown voltage (VBR min/max: 44.7–49.4 V), 400 W peak pulse power (10/1000 μs), and clamps to ≤64.8 V at 6.2 A peak pulse current - used in automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the P4KE47CAHE3/54 datasheet, P4KE47CAHE3/54 pinout, P4KE47CAHE3/54 application, or P4KE47CAHE3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-41 mechanical compatibility, and verified 175 °C junction temperature rating for under-hood automotive deployments.
Technical Context
This device operates as a voltage-clamped crowbar during transient events: when reverse (or forward, in bidirectional mode) voltage exceeds VBR, it avalanches to limit voltage across protected circuitry. Its glass-passivated junction ensures stable breakdown and low leakage (<1.0 μA at 40.2 V stand-off).
Designed for unidirectional and bidirectional configurations, P4KE47CAHE3/54 uses symmetric avalanche conduction in both polarities, with identical electrical characteristics in forward and reverse directions - confirmed by VBR tolerance (±5%), clamping voltage (VC = 64.8 V @ IPPM = 6.2 A), and thermal resistance (RθJL = 66 °C/W).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 44.7 V / 49.4 V at 1.0 mA test current - defines reliable turn-on threshold for transient suppression |
| VWM | 40.2 V - maximum continuous working voltage before leakage rises above 1.0 μA |
| VC @ IPPM | 64.8 V at 6.2 A (10/1000 μs) - actual clamped voltage seen by downstream ICs during surge |
| PPPM | 400 W - peak transient energy handling capacity without failure under standardized waveform |
| TJ max | +175 °C - enables operation in high-temperature environments including engine control units |
| RθJL | 66 °C/W - thermal resistance from junction to lead, critical for PCB trace heat sinking design |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; no polarity marking for bidirectional types - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both ends function identically in bidirectional mode; no cathode band marking required |
| Lead 1 / Lead 2 | PCB solder interface | Leads meet J-STD-002/JESD 22-B102 solderability; 275 °C max solder dip for 10 s |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| 400 W peak pulse power (10/1000 μs) | Handles ISO 7637-2 Pulse 1/2a/3a surges without degradation in automotive 12 V systems |
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD > 30 kV/ns) |
| UL 94 V-0 molding compound | Meets flammability requirements for enclosed industrial and automotive enclosures |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., oxygen, pressure) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt surge energy before reaching signal conditioning circuitry. Use Value: Clamps transients to ≤64.8 V while maintaining <1.0 μA leakage at 40.2 V, preserving signal integrity and enabling AEC-Q101-compliant system certification. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and ground bounce. IC Role / Device Role / Timing Role: Primary front-end TVS on each isolated input channel, operating in parallel with optocoupler input stages. Use Value: Withstands repetitive 400 W pulses at 0.01% duty cycle and maintains stable clamping performance across -55 °C to +175 °C ambient range. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Surge protection on RS-485/RS-232 data lines in base station remote units exposed to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Bidirectional clamping device placed differential-to-ground to suppress both line-to-line and line-to-earth surges. Use Value: Symmetric VBR (44.7–49.4 V) and matched forward/reverse clamping ensure balanced protection without polarity sensitivity. |
Use Scenario: Secondary-side transient suppression on 5–12 V DC outputs of wall-mounted AC/DC adapters for smart home devices. IC Role / Device Role / Timing Role: Final-stage TVS after DC-DC regulation, guarding against output short-circuit recovery spikes and ESD events. Use Value: Low 66 °C/W junction-to-lead thermal resistance allows direct PCB copper pour heat sinking without heatsink, reducing BOM count. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ45CA | DO-214AA package; higher 600 W PPPM; VC = 73.5 V @ 8.2 A | Requires larger PCB footprint; better suited for higher-energy surges in telecom infrastructure | Select when surge energy exceeds 400 W or board space permits SMB package |
| 1.5KE47CA | DO-201AD package; same VBR/VC; 1500 W PPPM; higher IFSM (200 A) | Larger body; used where higher single-pulse robustness is required (e.g., industrial motor drives) | Choose for legacy designs using DO-201AD or where 1500 W pulse rating is mandated |
Compared with SMBJ45CA and 1.5KE47CA, P4KE47CAHE3/54 offers optimal balance of AEC-Q101 qualification, DO-41 compactness, and 400 W surge handling - making it preferred for space-constrained automotive and industrial control nodes where qualification and thermal performance are prioritized over extreme pulse energy.
Availability
P4KE47CAHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer power adapter outputs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for P4KE47CAHE3/54 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 P4KE series targets cost-sensitive, high-volume transient suppression needs in automotive, industrial, and consumer electronics - delivering AEC-Q101 qualified TVS performance in standard DO-41 packaging.
FAQ
What does the "CA" suffix indicate in P4KE47CAHE3/54?
The "CA" suffix denotes a bidirectional configuration: P4KE47CAHE3/54 conducts and clamps symmetrically in both forward and reverse directions, with identical VBR, VC, and leakage specifications. This eliminates polarity concerns during placement and supports differential or AC-coupled signal line protection - unlike unidirectional "A" variants which require cathode orientation.
Is P4KE47CAHE3/54 suitable for automotive under-hood applications?
Yes, P4KE47CAHE3/54 is AEC-Q101 qualified and rated for TJ = -55 °C to +175 °C, making it suitable for under-hood environments such as engine control units and transmission control modules. Its glass-passivated junction and DO-41 package with UL 94 V-0 epoxy provide stability against thermal cycling, humidity, and mechanical vibration encountered in automotive deployments.
How does the clamping voltage of P4KE47CAHE3/54 compare to its breakdown voltage?
P4KE47CAHE3/54 has a minimum breakdown voltage VBR of 44.7 V and clamps to 64.8 V at 6.2 A peak pulse current (10/1000 μs). The 20.1 V difference represents the dynamic voltage rise under surge conditions - a design-critical margin that must be verified against the absolute maximum ratings of downstream ICs like CAN transceivers or ADC front-ends.
What is the meaning of the "HE3/54" suffix in P4KE47CAHE3/54?
The "HE3" indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "/54" specifies packaging in 13-inch paper tape and reel with 5500 units per reel. This distinguishes it from commercial-grade "E3" variants and confirms compliance with automotive reliability and assembly standards.
Can P4KE47CAHE3/54 replace P4KE47A in an existing design?
No - P4KE47CAHE3/54 is bidirectional while P4KE47A is unidirectional. Substituting them requires verifying circuit polarity, checking for cathode orientation dependencies, and confirming that clamping behavior in both directions meets system requirements. The devices share VBR and package but differ fundamentally in conduction symmetry and marking (no band vs. cathode band).
P4KE47CAHE3/54 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):
- 40.2V
- Voltage - Breakdown (Min):
- 44.7V
- Voltage - Clamping (Max) @ Ipp:
- 64.8V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- 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)
P4KE47CAHE3/54 FAQ
1.How can I place an order for P4KE47CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE47CAHE3/54 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 P4KE47CAHE3/54 reliable?
The price and inventory of P4KE47CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE47CAHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE47CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE47CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE47CAHE3/54?
P4KE47CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE47CAHE3/54 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 P4KE47CAHE3/54?
For technical support, including P4KE47CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE47CAHE3/54 requirements.
6.How does Aetrix verify that P4KE47CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE47CAHE3/54 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 P4KE47CAHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE47CAHE3/54?
All P4KE47CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE47CAHE3/54, 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 P4KE47CAHE3/54 part is unused and in its original packaging.
Return procedure for P4KE47CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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