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Vishay General Semiconductor - Diodes Division P4KE43CA-E3/54
- Part No.:
- P4KE43CA-E3/54
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE43CA-E3/54.pdf
- Description:
- TVS DIODE 36.8VWM 59.3VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,904
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Product details
Overview
P4KE43CA-E3/54 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 400 W peak pulse power (10/1000 μs), 40.9–45.2 V breakdown voltage (VBR), 36.8 V stand-off voltage (VWM), and clamps to ≤59.3 V at 6.7 A peak pulse current - used in automotive sensor line protection and industrial I/O interface surge suppression.
For engineers reviewing the P4KE43CA-E3/54 datasheet, P4KE43CA-E3/54 pinout, P4KE43CA-E3/54 application, or P4KE43CA-E3/54 equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, DO-41 mechanical compatibility, 175 °C max junction temperature, and 1.5 W steady-state power dissipation under heatsink conditions.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche behavior in both polarities, enabling robust transient suppression without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, while the 10/1000 μs waveform rating reflects standardized lightning/surge immunity testing per ANSI/IEEE C62.35.
The P4KE43CA-E3/54 delivers fast response time (<1 ns) and low clamping ratio (VC/VBR ≈ 1.31), critical for safeguarding MOSFET gates and microcontroller I/O pins. Thermal resistance of 66 °C/W (junction-to-lead) supports reliable operation under repetitive surge conditions when mounted with adequate lead length per JESD 22-B106.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 40.9 V / 45.2 V - defines guaranteed avalanche conduction onset range at 1 mA test current |
| VWM | 36.8 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | ≤59.3 V at 6.7 A - clamped voltage during 10/1000 μs surge, limiting stress on downstream ICs |
| PPPM | 400 W - peak transient power handling capacity under standard surge waveform |
| TJ max | +175 °C - enables use in under-hood automotive environments and high-ambient industrial settings |
| RθJL | 66 °C/W - thermal resistance from junction to lead, informs heatsinking requirements for sustained pulse duty |
Pinout & Package
DO-41 (DO-204AL) molded epoxy package with matte tin-plated leads; no polarity marking for bidirectional configuration; compliant with UL 94 V-0 flammability rating and J-STD-002 solderability standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | One terminal of symmetrical avalanche junction; connects to protected line without polarity constraint |
| Cathode | Transient current entry (positive polarity) | Second terminal of symmetrical junction; functionally identical to anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| 400 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 3/4 surge immunity requirements for industrial interfaces |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for 3.3 V/5 V logic |
| Solder dip 275 °C max., 10 s | Supports wave and reflow soldering processes without junction degradation or delamination |
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 ESD events in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed between signal line and ground, absorbing ±1 kV EFT and 10/1000 μs surges. Use Value: Maintains signal integrity below 59.3 V clamp level while surviving >1000 surges per AEC-Q101 stress profile. | Use Scenario: Shielding digital input modules in programmable logic controllers from inductive kickback caused by solenoid/relay switching. IC Role / Device Role / Timing Role: Fast-response shunt protector across 24 V DC input terminals, diverting surge energy before reaching optocoupler inputs. Use Value: Enables compliance with IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) without additional filtering components. |
| Consumer Power Adapter Interface | Telecom Line Card Surge Suppression |
Use Scenario: Safeguarding AC-DC adapter secondary-side outputs against line-induced transients entering via USB or auxiliary power rails. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between VOUT and GND, activating only above 36.8 V to avoid interference with normal regulation. Use Value: Prevents latch-up or overvoltage damage to downstream LDOs and USB interface ICs during brownout recovery. | Use Scenario: Protecting Ethernet PHY front-end circuits and RJ45 magnetics from lightning-induced common-mode surges on telecom base station line cards. IC Role / Device Role / Timing Role: Bidirectional clamping device integrated into PCB-level surge protection network upstream of isolation transformers. Use Value: Provides symmetric clamping for differential signaling lines while meeting GR-1089-CORE Level 3 surge withstand requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ43CA | Same VBR range (40.9–45.2 V) but SMC (DO-214AB) package; 600 W PPPM; lower RθJA (50 °C/W) | Higher power handling and better thermal performance; requires larger PCB footprint | Select SMBJ43CA when surge repetition rate or ambient temperature exceeds P4KE43CA-E3/54 limits |
| 1.5KE43CA | Same DO-41 package and VBR, but 1500 W PPPM; higher IPPM (38.1 A); larger junction area | Designed for higher-energy transients (e.g., ISO 7637-2 Pulse 5a); not AEC-Q101 qualified | Choose 1.5KE43CA for non-automotive industrial surge events where AEC-Q101 is not required |
Compared with SMBJ43CA and 1.5KE43CA, the P4KE43CA-E3/54 offers AEC-Q101 qualification and optimal cost/performance balance for moderate-energy transients in space-constrained DO-41 layouts, making it preferred for automotive and consumer electronics where qualification and footprint are decisive.
Availability
P4KE43CA-E3/54 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer power adapter outputs, and telecom line card protection requiring stable component supply and traceable sourcing.
Supply support for P4KE43CA-E3/54 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 industrial robustness.
The P4KE series targets cost-sensitive, high-volume transient suppression needs across automotive, industrial, and consumer markets - delivering standardized DO-41 TVS performance with AEC-Q101 validation for mission-critical signal line protection.
FAQ
What is the breakdown voltage tolerance for P4KE43CA-E3/54?
The P4KE43CA-E3/54 has a specified breakdown voltage range of 40.9 V to 45.2 V at 1 mA test current (VBR min/max), corresponding to ±10% tolerance around the nominal 43 V rating. This tolerance is measured per ANSI/IEEE C62.35 and applies equally in both directions due to its bidirectional construction.
Is P4KE43CA-E3/54 RoHS-compliant and halogen-free?
Yes, the P4KE43CA-E3/54 carries the "E3" suffix indicating full RoHS compliance per Directive 2011/65/EU and meets Vishay's material categorization standard (Doc. 99912). The molding compound is UL 94 V-0 rated and contains no halogens, antimony, or beryllium as defined in Vishay's environmental policy.
Does P4KE43CA-E3/54 require polarity-aware PCB layout?
No - the P4KE43CA-E3/54 is a bidirectional TVS diode with symmetrical electrical characteristics in both polarities, and its DO-41 package has no marking or polarity indicator. PCB layout may orient either lead toward the protected line or ground without functional impact.
What is the maximum clamping voltage of P4KE43CA-E3/54 under surge conditions?
The P4KE43CA-E3/54 clamps to a maximum of 59.3 V when subjected to its rated 6.7 A peak pulse current (IPPM) using the standard 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and forms the basis for downstream circuit overvoltage margin design.
Can P4KE43CA-E3/54 be used in place of unidirectional P4KE43A-E3/54?
No - the P4KE43CA-E3/54 is strictly bidirectional and cannot replace the unidirectional P4KE43A-E3/54 in circuits requiring DC blocking or polarity-specific clamping. Their VF and leakage behavior differ significantly; substituting without circuit review risks forward conduction or inadequate protection in DC-biased applications.
P4KE43CA-E3/54 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):
- 36.8V
- Voltage - Breakdown (Min):
- 40.9V
- Voltage - Clamping (Max) @ Ipp:
- 59.3V
- Current - Peak Pulse (10/1000µs):
- 6.7A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE43CA-E3/54 FAQ
1.How can I place an order for P4KE43CA-E3/54 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE43CA-E3/54 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 P4KE43CA-E3/54 reliable?
The price and inventory of P4KE43CA-E3/54 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE43CA-E3/54 is usually 5 days.
3.What payment methods are accepted for P4KE43CA-E3/54?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE43CA-E3/54 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE43CA-E3/54?
P4KE43CA-E3/54 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE43CA-E3/54 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 P4KE43CA-E3/54?
For technical support, including P4KE43CA-E3/54 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE43CA-E3/54 requirements.
6.How does Aetrix verify that P4KE43CA-E3/54 is sourced from the original manufacturer or authorized distributors?
All P4KE43CA-E3/54 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 P4KE43CA-E3/54 meets industry standards.
7.What is the process for return or replacement of P4KE43CA-E3/54?
All P4KE43CA-E3/54 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE43CA-E3/54, 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 P4KE43CA-E3/54 part is unused and in its original packaging.
Return procedure for P4KE43CA-E3/54:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE43CA-E3/54 Tags
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