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Vishay General Semiconductor - Diodes Division P4KE47AHE3/54
- Part No.:
- P4KE47AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE47AHE3/54.pdf
- Description:
- TVS DIODE 40.2VWM 64.8VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,165
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Product details
Overview
P4KE47AHE3/54 from Vishay General Semiconductor is a unidirectional TransZORB® transient voltage suppressor diode in DO-41 package, designed for clamping inductive switching surges and lightning-induced transients. It features 400 W peak pulse power (10/1000 μs), 40.2 V stand-off voltage (VWM), 44.7–49.4 V breakdown range (VBR at 1 mA), and 64.8 V maximum clamping voltage (VC) at 6.2 A IPPM - deployed in automotive sensor signal lines and industrial I/O protection.
For engineers reviewing the P4KE47AHE3/54 datasheet, P4KE47AHE3/54 pinout, P4KE47AHE3/54 application, or P4KE47AHE3/54 equivalent, key selection criteria include clamping ratio (VC/VBR ≈ 1.38), AEC-Q101 qualification, DO-41 thermal resistance (RθJL = 66 °C/W), and unidirectional polarity with cathode band marking.
Technical Context
This device operates as a silicon avalanche diode optimized for fast-response overvoltage clamping in DC-biased circuits. Its glass-passivated junction enables stable breakdown behavior under repetitive 10/1000 μs transients at 0.01% duty cycle, with low incremental surge resistance ensuring minimal voltage overshoot during surge events.
Designed for unidirectional operation only, P4KE47AHE3/54 exhibits a forward voltage of 3.5 V at 25 A (per spec note 3), and its thermal design supports junction temperatures up to +175 °C with derating above TA = 25 °C per Fig. 2 - critical for under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 40.2 V - maximum continuous reverse operating voltage before conduction begins |
| VBR min/max | 44.7 V / 49.4 V at 1 mA - ensures reliable avalanche initiation within defined tolerance band |
| VC @ IPPM | 64.8 V at 6.2 A - clamping voltage limiting downstream circuit stress during surge |
| PPPM | 400 W (10/1000 μs) - peak transient energy handling capacity for standard lightning/surge waveforms |
| TJ max | +175 °C - enables deployment in high-temperature automotive and industrial enclosures |
| RθJL | 66 °C/W - thermal resistance from junction to lead, informs heatsinking requirements for sustained pulse trains |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; cathode indicated by color band on body end. Lead length 9.5 mm typical; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / surge return path | Connected to ground or low-impedance return in unidirectional TVS configuration |
| Cathode | Avalanche conduction terminal | Marked with band; connected to protected line - conducts when line voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures long-term stability of breakdown voltage and leakage current across temperature and life cycles |
| 400 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without degradation in single-event testing |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body control, and ADAS sensor interfaces |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes overvoltage exposure to downstream ICs compared to higher-ratio suppressors |
| Solderable per J-STD-002/JESD 22-B102 | Supports automated reflow and wave soldering with 275 °C/10 s max dip tolerance |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional clamping device placed between signal line and chassis ground, activated within <1 ns of overvoltage onset. Use Value: Limits transient voltage to ≤64.8 V, preserving integrity of 5 V or 3.3 V interface ICs rated for ≤70 V absolute maximum. | Use Scenario: Shielding digital input modules in programmable logic controllers from inductive kickback generated by solenoid/relay coils. IC Role / Device Role / Timing Role: Standby-mode surge absorber tied across input terminals, conducting only during >40.2 V excursions. Use Value: Prevents false triggering and latch-up in optocoupler input stages by clamping spikes before they exceed 64.8 V. |
| Consumer Power Adapter Input | Telecom Line Interface |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters subjected to lightning-induced surges on DC output rails. IC Role / Device Role / Timing Role: Fast-acting shunt element parallel to DC output, triggered by transient exceeding 40.2 V. Use Value: Maintains regulated 5 V/12 V output integrity by clamping to 64.8 V, avoiding damage to downstream USB or PoE controller ICs. | Use Scenario: Protecting RS-485 transceiver pins in base station backhaul equipment exposed to induced surges on long cable runs. IC Role / Device Role / Timing Role: Unidirectional TVS mounted between differential pair and ground, referenced to local GND plane. Use Value: Ensures data integrity by limiting common-mode transients to ≤64.8 V, staying below RS-485 receiver's ±12 V common-mode range limit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43A | DO-214AA package; 43 V VWM; 400 W PPPM; lower RθJA (50 °C/W) but higher VC (69.4 V) | Better thermal performance in surface-mount layouts; less suitable for through-hole legacy designs | Select SMBJ43A when board space is constrained and SMT assembly is used. |
| 1.5KE47A | Same DO-41 package; identical VWM/VBR/VC specs; 1.5 kW PPPM (10/1000 μs); higher IFSM (100 A) | Higher surge margin for infrequent, high-energy events; larger footprint not required | Choose 1.5KE47A where single-event robustness outweighs average power dissipation concerns. |
Compared with SMBJ43A and 1.5KE47A, P4KE47AHE3/54 offers AEC-Q101 qualification and DO-41 compatibility for through-hole automotive and industrial upgrades, while balancing clamping performance (64.8 V) and thermal response (RθJL = 66 °C/W) for cost-sensitive, medium-surge applications.
Availability
P4KE47AHE3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply across extended production lifecycles.
Supply support for P4KE47AHE3/54 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, and protection devices with emphasis on reliability and automotive qualification.
P4KE47AHE3/54 belongs to the TransZORB® P4KE family - engineered specifically for cost-effective, high-reliability transient suppression in harsh-environment DC power and signal lines.
FAQ
What is the clamping voltage of P4KE47AHE3/54 and how does it protect downstream components?
The P4KE47AHE3/54 has a maximum clamping voltage (VC) of 64.8 V at 6.2 A peak pulse current (IPPM). This value defines the highest voltage imposed on the protected line during a transient event. By limiting overvoltage to this level, the P4KE47AHE3/54 prevents damage or malfunction in downstream ICs rated for ≤70 V absolute maximum, such as automotive sensor signal conditioners and industrial interface receivers.
Is P4KE47AHE3/54 suitable for automotive applications?
Yes, P4KE47AHE3/54 is AEC-Q101 qualified and explicitly rated for automotive use. Its construction - glass-passivated junction, DO-41 package with matte tin leads, and operation up to +175 °C junction temperature - meets requirements for engine bay and chassis-mounted electronics. The HE3 suffix confirms AEC-Q101 compliance per Vishay's ordering nomenclature.
How does the P4KE47AHE3/54 differ from bidirectional variants like P4KE47CA?
P4KE47AHE3/54 is unidirectional with cathode band marking and specified forward voltage (VF = 3.5 V at 25 A); P4KE47CA is bidirectional with no polarity marking and symmetrical clamping in both directions. The P4KE47AHE3/54 is intended for DC-biased lines where only one polarity of surge must be suppressed, offering tighter VBR tolerance and lower VF than its bidirectional counterpart.
What is the meaning of the "HE3/54" suffix in P4KE47AHE3/54?
The "HE3" suffix indicates RoHS-compliant construction with AEC-Q101 qualification and JESD 201 Class 2 whisker resistance; "/54" denotes the preferred package code for 13-inch paper tape and reel packaging containing 5500 units. This full designation ensures traceability to Vishay's qualified automotive-grade production lot and standardized logistics format.
Can P4KE47AHE3/54 be used in place of P4KE47A-E3/54?
Yes - P4KE47AHE3/54 and P4KE47A-E3/54 share identical electrical specifications and DO-41 mechanical form factor. The "H" in HE3 explicitly denotes AEC-Q101 qualification, whereas E3 alone indicates commercial grade. For automotive or high-reliability industrial use, P4KE47AHE3/54 is the preferred variant; both are pin-compatible and interchangeable in layout.
P4KE47AHE3/54 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:
- 1
- Bidirectional Channels:
- -
- 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)
P4KE47AHE3/54 FAQ
1.How can I place an order for P4KE47AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE47AHE3/54 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 P4KE47AHE3/54 reliable?
The price and inventory of P4KE47AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE47AHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE47AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE47AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE47AHE3/54?
P4KE47AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE47AHE3/54 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 P4KE47AHE3/54?
For technical support, including P4KE47AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE47AHE3/54 requirements.
6.How does Aetrix verify that P4KE47AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE47AHE3/54 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 P4KE47AHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE47AHE3/54?
All P4KE47AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE47AHE3/54, 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 P4KE47AHE3/54 part is unused and in its original packaging.
Return procedure for P4KE47AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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