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Vishay General Semiconductor - Diodes Division P4KE56AHE3/54
- Part No.:
- P4KE56AHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE56AHE3/54.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,889
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Product details
Overview
P4KE56AHE3/54 from Vishay General Semiconductor is a unidirectional Transient Voltage Suppressor (TVS) diode in DO-41 package, designed for robust overvoltage protection of sensitive electronics. It features a 53.2 V minimum breakdown voltage (VBR), 47.8 V maximum standoff voltage (VWM), 77.0 V clamping voltage (VC) at 5.2 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - deployed on power rails and signal lines in automotive ECUs and industrial sensor interfaces.
For engineers reviewing the P4KE56AHE3/54 datasheet, P4KE56AHE3/54 pinout, P4KE56AHE3/54 application, or P4KE56AHE3/54 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, DO-41 mechanical dimensions, clamping performance under transient stress, and direct alternative part comparisons for ESD/surge protection design-in.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: when reverse voltage exceeds VWM (47.8 V), it avalanches at VBR (53.2–58.8 V) and limits transient energy by clamping to ≤77.0 V at 5.2 A IPPM. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response (<1 ns), critical for protecting MOSFET gates and microcontroller I/O against inductive switching spikes.
Thermally, it sustains 175 °C max junction temperature with RθJL = 66 °C/W and dissipates 1.5 W continuously on infinite heatsink. The HE3 suffix confirms AEC-Q101 qualification, matte tin-plated leads compliant with J-STD-002, and JESD 201 Class 2 whisker resistance - enabling use in automotive powertrain and body control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 47.8 V maximum working voltage - defines highest continuous DC or RMS voltage the device blocks without conduction. |
| VBR (min/max) | 53.2 V / 58.8 V at 1.0 mA test current - specifies precise avalanche onset range for reliable triggering margin. |
| VC @ IPPM | 77.0 V clamping voltage at 5.2 A peak pulse - determines worst-case voltage seen by protected circuit during 10/1000 μs surge. |
| PPPM | 400 W peak pulse power - quantifies single-event surge energy absorption capability per industry-standard waveform. |
| IFSM | 40 A non-repetitive forward surge current - supports handling of 8.3 ms half-sine inrush or fault currents in power supply inputs. |
| TJ max | 175 °C maximum junction temperature - enables operation in under-hood automotive environments and high-ambient industrial settings. |
| Leakage ID | ≤1.0 μA at VWM - ensures minimal standby power loss and signal integrity in low-current sensor bias networks. |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with axial leads: cathode indicated by color band; anode and cathode terminals are electrically isolated except during avalanche conduction. Leads are matte tin-plated, solderable per J-STD-002, and rated for 275 °C dip soldering (10 s max).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unmarked end) | Forward current entry / reverse voltage reference node | Connected to ground or low-impedance return path to enable clamping action when cathode-side transients exceed VWM. |
| Cathode (banded end) | Transient voltage sensing and clamping node | Placed directly on protected line (e.g., 48 V rail or CAN-H); conducts avalanche current to anode during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS power supplies, and infotainment system protection. |
| Glass passivated junction | Ensures long-term stability of VBR and low leakage across temperature (-55 °C to +175 °C) and lifetime. |
| 400 W 10/1000 μs pulse rating | Meets ISO 7637-2 Pulse 1, 2a, 3a/b and IEC 61000-4-5 Level 3 surge immunity requirements. |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage stress on downstream ICs - critical for 5 V or 3.3 V logic interfacing with 48 V systems. |
| JESD 201 Class 2 whisker resistance | Prevents tin whisker growth under thermal cycling, ensuring reliability in sealed automotive connectors and PCB assemblies. |
Applications
| Automotive Power Supply Protection | Industrial Sensor Signal Line Guarding |
|---|---|
Use Scenario: Protecting 48 V battery-fed MCU power rails in body control modules against load dump and alternator transients. IC Role / Device Role / Timing Role: Shunt TVS placed between VIN and GND, clamping surges within nanoseconds before LDO or DC-DC converter input stages. Use Value: Limits transient voltage to ≤77.0 V, preventing latch-up or gate oxide damage in 40 V-rated input regulators and enabling compliance with ISO 16750-2. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop) of pressure sensors in hydraulic control systems. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional configuration used across signal and return paths to suppress EFT bursts and cable discharge events. Use Value: Sub-μA leakage preserves loop accuracy; 77.0 V clamping prevents op-amp saturation and ADC overrange in 24 V-powered transmitters. |
| Telecom DC Feeder Protection | Consumer Appliance Motor Drive Snubbing |
Use Scenario: Shielding PoE-powered Ethernet switch ports from lightning-induced surges on 48 V DC feeder lines. IC Role / Device Role / Timing Role: Primary front-end TVS on DC input stage, coordinated with secondary MOV and gas discharge tube in multi-stage architecture. Use Value: 400 W rating handles repetitive 10/1000 μs surges up to 0.01% duty cycle; DO-41 footprint allows dense layout near connector entry points. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in smart home vacuum cleaners and power tools. IC Role / Device Role / Timing Role: Mounted across motor terminals to clamp flyback voltage during PWM commutation and stall conditions. Use Value: 40 A IFSM withstands repeated 8.3 ms half-sine surges; 175 °C TJ max supports enclosed, thermally constrained motor housings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58A | DO-214AA package; 58 V VBR min; 93.6 V VC @ 4.3 A; 600 W PPPM; surface-mount only. | Higher clamping voltage reduces protection margin for 5 V logic; SMD footprint requires PCB redesign vs. through-hole DO-41. | Select SMBJ58A only when board space constraints prohibit axial-leaded devices and higher VC is acceptable. |
| 1.5KE56A | Same DO-41 package; identical VBR/VC specs; 1500 W PPPM; commercial grade (not AEC-Q101 qualified); no HE3 suffix. | Lacks automotive qualification and JESD 201 Class 2 whisker resistance - unsuitable for safety-critical or long-life automotive deployments. | Choose 1.5KE56A for cost-sensitive industrial power supplies where AEC-Q101 is not mandated. |
Compared with P4KE56AHE3/54, SMBJ58A offers higher surge rating but sacrifices clamping performance and mounting compatibility, while 1.5KE56A matches form/fit/function but omits automotive qualification and enhanced reliability testing required for vehicle-grade designs.
Availability
P4KE56AHE3/54 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, and telecom DC power feeders requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P4KE56AHE3/54 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, efficiency, and automotive-grade qualification.
The P4KE series targets cost-effective, high-energy transient suppression in harsh environments - engineered for AEC-Q101 compliance, wide temperature operation, and robust surge handling in automotive, industrial, and infrastructure applications.
FAQ
What is the maximum clamping voltage of the P4KE56AHE3/54 under standard 10/1000 μs surge conditions?
The P4KE56AHE3/54 clamps to a maximum of 77.0 V at its rated peak pulse current of 5.2 A, as specified in the Vishay datasheet (Document Number: 88365). This value is measured under standardized 10/1000 μs waveform conditions and defines the upper voltage limit imposed on protected circuits during transient events. The P4KE56AHE3/54 maintains this clamping performance across its qualified operating temperature range.
Is the P4KE56AHE3/54 suitable for automotive applications, and what qualifications does it hold?
Yes, the P4KE56AHE3/54 is explicitly AEC-Q101 qualified, as confirmed by the HE3 suffix and documentation in Vishay's datasheet. It meets automotive reliability requirements including thermal cycling, humidity resistance, and mechanical shock testing. The P4KE56AHE3/54 is rated for junction temperatures up to 175 °C and features JESD 201 Class 2 whisker resistance - making it appropriate for under-hood and body-control module deployments.
How does the P4KE56AHE3/54 differ from the commercial-grade P4KE56AE3/54 variant?
The P4KE56AHE3/54 differs from P4KE56AE3/54 primarily in qualification and reliability testing: the HE3 suffix denotes AEC-Q101 qualification and JESD 201 Class 2 whisker resistance, whereas the E3 suffix indicates commercial-grade compliance only. Both share identical electrical specs (VBR, VC, PPPM) and DO-41 packaging, but the P4KE56AHE3/54 undergoes additional stress screening required for automotive use.
What is the standoff voltage rating of the P4KE56AHE3/54, and how does it relate to circuit operating voltage?
The P4KE56AHE3/54 has a maximum standoff voltage (VWM) of 47.8 V, meaning it remains non-conductive up to this DC or RMS voltage level. For reliable operation, the circuit's normal operating voltage must be ≤80–90% of VWM - e.g., ≤43 V for margin - to avoid leakage-induced power loss or premature aging. This rating ensures the P4KE56AHE3/54 stays inert during steady-state 48 V system operation while responding instantly to overvoltage events.
Can the P4KE56AHE3/54 be used in bidirectional protection configurations?
No, the P4KE56AHE3/54 is a unidirectional TVS diode, indicated by the "A" suffix (vs. "CA" for bidirectional types like P4KE56CA). It conducts only in reverse bias above VBR and blocks forward current up to 3.5 V. For bidirectional protection - such as AC signal lines or differential buses - a CA-suffixed part or back-to-back diode arrangement is required; the P4KE56AHE3/54 must be oriented with cathode toward the protected line.
P4KE56AHE3/54 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):
- 47.8V
- Voltage - Breakdown (Min):
- 53.2V
- Voltage - Clamping (Max) @ Ipp:
- 77V
- Current - Peak Pulse (10/1000µs):
- 5.2A
- 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)
P4KE56AHE3/54 FAQ
1.How can I place an order for P4KE56AHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE56AHE3/54 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 P4KE56AHE3/54 reliable?
The price and inventory of P4KE56AHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE56AHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE56AHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE56AHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE56AHE3/54?
P4KE56AHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE56AHE3/54 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 P4KE56AHE3/54?
For technical support, including P4KE56AHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE56AHE3/54 requirements.
6.How does Aetrix verify that P4KE56AHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE56AHE3/54 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 P4KE56AHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE56AHE3/54?
All P4KE56AHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE56AHE3/54, 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 P4KE56AHE3/54 part is unused and in its original packaging.
Return procedure for P4KE56AHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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