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Vishay General Semiconductor - Diodes Division P4KE56CAHE3/54
- Part No.:
- P4KE56CAHE3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE56CAHE3/54.pdf
- Description:
- TVS DIODE 47.8VWM 77VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,618
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Product details
Overview
P4KE56CAHE3/54 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 56 V breakdown voltage (VBR min/max = 53.2–58.8 V), 47.8 V stand-off voltage (VWM), 77.0 V maximum clamping voltage (VC) at 5.2 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs and sensor signal lines in automotive ECUs.
For engineers reviewing the P4KE56CAHE3/54 datasheet, P4KE56CAHE3/54 pinout, P4KE56CAHE3/54 application, or P4KE56CAHE3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-41 mechanical compatibility, thermal resistance (RθJL = 66 °C/W), and low leakage (<1.0 μA at VWM).
Technical Context
This device operates as a voltage-clamped surge protector using an avalanche breakdown mechanism. Its bidirectional symmetry enables protection of AC-coupled or differential signal paths without polarity sensitivity, and its glass-passivated junction ensures stable VBR tolerance (±5%) and low temperature coefficient (0.103 %/°C).
It delivers 400 W transient suppression under standardized 10/1000 μs pulses at ≤0.01% duty cycle, with clamping response time <1.0 ns and incremental surge resistance optimized for minimal overshoot during fast-rising ESD or load-switching events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 53.2 V / 58.8 V at 1.0 mA - defines reliable conduction onset range for bidirectional clamping |
| VWM | 47.8 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 77.0 V at 5.2 A - peak clamped voltage seen by protected circuit during 10/1000 μs surge |
| PPPM | 400 W - peak transient power dissipation capability under standard surge waveform |
| IPPM | 5.2 A - maximum non-repetitive surge current supported at rated clamping voltage |
| TJ max. | +175 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| RθJL | 66 °C/W - thermal resistance from junction to lead, critical for PCB copper pour design and power derating |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; no polarity marking for bidirectional configuration; compliant with J-STD-002 solderability and JESD 201 Class 2 whisker testing (HE3 suffix).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction terminals | No functional distinction - either terminal serves as cathode or anode depending on transient polarity |
| Lead 1 / Lead 2 | External connection points | Directly bonded to silicon die; require ≥10 mm lead length for specified RθJA = 100 °C/W |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Glass passivated junction | Ensures ±5% VBR tolerance and stable long-term leakage performance under humidity stress |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 surge immunity (4 kV line-to-line) with margin |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio TVS devices |
| UL 94 V-0 molding compound | Meets flammability requirements for enclosed automotive and industrial control enclosures |
Applications
| Automotive Power Line Protection | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power rails from load-dump transients up to 35 V and ISO 7637-2 Pulse 5a. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between VCC and GND, absorbing energy before LDO input stage. Use Value: Clamps transients to ≤77.0 V while maintaining <1.0 μA leakage at 47.8 V, preventing brownout or latch-up in safety-critical ECUs. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) from ESD and field-wiring induced surges in factory automation systems. IC Role / Device Role / Timing Role: Low-capacitance shunt protector across differential pair, referenced to local ground plane. Use Value: Responds in <1 ns to ±8 kV contact ESD (IEC 61000-4-2), limiting voltage excursion to safe levels without distorting 100 kHz bandwidth signals. |
| Consumer Audio Interface Protection | Telecom Line Card Surge Suppression |
Use Scenario: Safeguarding USB-C CC and SBU pins against hot-plug induced transients and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional TVS placed directly at connector, with minimal trace inductance. Use Value: Withstands 400 W surges while adding <0.5 pF parasitic capacitance - preserving signal integrity for USB 2.0 data rates. |
Use Scenario: Front-end protection of xDSL or POTS line interface ICs exposed to lightning-induced surges on outside plant wiring. IC Role / Device Role / Timing Role: Primary coarse-clamp device upstream of precision current-limiting resistors and secondary TVS stages. Use Value: Handles 5.2 A peak current per IEC 61000-4-5 combination wave, reducing let-through energy to <10 mJ for downstream protection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CA | DO-214AA package; 58 V VBR; 64.5 V VC @ 6.2 A; 600 W PPPM | Higher power rating but larger footprint; requires PCB re-layout | Select when higher surge margin is needed and board space allows SMB footprint |
| 1.5KE56CA | DO-201AD package; same VBR/VC; 1500 W PPPM; higher IPPM (23.3 A) | Greater surge handling capacity; not AEC-Q101 qualified | Prefer for industrial non-automotive use where qualification is not required and higher energy absorption is critical |
Compared with SMBJ58CA and 1.5KE56CA, the P4KE56CAHE3/54 offers AEC-Q101 compliance and DO-41 compatibility in cost-sensitive automotive modules, trading peak power for qualification and legacy footprint retention - making it optimal for ECU redesigns requiring drop-in replacement of earlier P4KE-series parts.
Availability
P4KE56CAHE3/54 is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, consumer audio port protection, and telecom line card designs requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for P4KE56CAHE3/54 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, automotive qualification, and high-volume manufacturability.
The P4KE series belongs to Vishay's TRANSZORB® TVS family, engineered specifically for robust, cost-effective transient suppression in automotive, industrial, and communications infrastructure where AEC-Q101 compliance and DO-41 legacy compatibility are essential.
FAQ
What does the "CA" suffix indicate in P4KE56CAHE3/54?
The "CA" suffix denotes a bidirectional configuration - meaning the P4KE56CAHE3/54 provides symmetrical clamping for both positive and negative transients without polarity dependence. This distinguishes it from unidirectional variants (e.g., P4KE56A), which have a defined cathode band and only clamp in reverse bias. The P4KE56CAHE3/54 has no polarity marking on the DO-41 body.
Is P4KE56CAHE3/54 qualified for automotive applications?
Yes, the "HE3" suffix confirms AEC-Q101 qualification for P4KE56CAHE3/54 - verified per stress tests including high-temperature reverse bias, temperature cycling, and ESD. It is rated for operation from –55 °C to +175 °C junction temperature and meets JESD201 Class 2 whisker resistance, making it suitable for engine control, body electronics, and ADAS modules.
What is the maximum clamping voltage of P4KE56CAHE3/54 under surge conditions?
The maximum clamping voltage (VC) of P4KE56CAHE3/54 is 77.0 V at 5.2 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is measured under standardized test conditions and represents the highest voltage imposed on the protected circuit during a worst-case transient - critical for ensuring downstream ICs remain within absolute maximum ratings.
How does P4KE56CAHE3/54 differ from P4KE56AHE3/54?
The P4KE56CAHE3/54 is bidirectional, while P4KE56AHE3/54 is unidirectional. Key differences include: no polarity marking on P4KE56CAHE3/54 versus cathode band on P4KE56AHE3/54; identical VBR (53.2–58.8 V) and VC (77.0 V), but P4KE56AHE3/54 specifies forward voltage (VF = 5.0 V at 25 A) and IFSM (40 A), whereas those parameters do not apply to the bidirectional P4KE56CAHE3/54.
Can P4KE56CAHE3/54 be used in place of older P4KE56CA-E3/54 parts?
Yes - P4KE56CAHE3/54 is a direct replacement for P4KE56CA-E3/54, retaining identical electrical specifications, DO-41 package dimensions, and RoHS compliance. The "H" prefix indicates AEC-Q101 qualification, while "E3" denotes RoHS-compliant matte tin plating; both share the same 54-tape-and-reel packaging format (5500 pcs/reel) and 0.350 g unit weight.
P4KE56CAHE3/54 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):
- 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)
P4KE56CAHE3/54 FAQ
1.How can I place an order for P4KE56CAHE3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE56CAHE3/54 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 P4KE56CAHE3/54 reliable?
The price and inventory of P4KE56CAHE3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE56CAHE3/54 is usually 5 days.
3.What payment methods are accepted for P4KE56CAHE3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE56CAHE3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE56CAHE3/54?
P4KE56CAHE3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE56CAHE3/54 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 P4KE56CAHE3/54?
For technical support, including P4KE56CAHE3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE56CAHE3/54 requirements.
6.How does Aetrix verify that P4KE56CAHE3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE56CAHE3/54 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 P4KE56CAHE3/54 meets industry standards.
7.What is the process for return or replacement of P4KE56CAHE3/54?
All P4KE56CAHE3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE56CAHE3/54, 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 P4KE56CAHE3/54 part is unused and in its original packaging.
Return procedure for P4KE56CAHE3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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