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Vishay General Semiconductor - Diodes Division P4KE75C-E3/73
- Part No.:
- P4KE75C-E3/73
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE75C-E3/73.pdf
- Description:
- TVS DIODE 60.7VWM 108VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:8,610
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Product details
Overview
P4KE75C-E3/73 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 a 71.3 V minimum and 78.8 V maximum breakdown voltage (VBR) at 1 mA test current, 64.1 V standoff voltage (VWM), 103 V maximum clamping voltage (VC) at 3.9 A peak pulse current, and 400 W peak pulse power rating with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the P4KE75C-E3/73 datasheet, P4KE75C-E3/73 pinout, P4KE75C-E3/73 application, or P4KE75C-E3/73 equivalent, key selection criteria include bidirectional clamping capability, DO-41 mechanical compatibility, AEC-Q101 qualification status, thermal resistance (RθJL = 66 °C/W), and compliance with IEC 61000-4-2/4-4/4-5 surge immunity requirements.
Technical Context
The P4KE75C-E3/73 operates as a silicon avalanche diode with glass-passivated junction, delivering symmetrical clamping in both polarities due to its bidirectional construction. Its 10/1000 μs surge response enables protection against inductive switching spikes and lightning-induced transients without polarity sensitivity.
It exhibits low incremental surge resistance and fast response time (<1 ns), with thermal derating defined up to 175 °C junction temperature. The device is rated for 1.5 W steady-state power dissipation on infinite heatsink at 75 °C lead temperature and supports repetitive surge duty cycle of 0.01 %.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 71.3 V / 78.8 V at 1 mA - defines precise avalanche initiation threshold for reliable transient detection |
| VWM | 64.1 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA |
| VC @ IPPM | 103 V at 3.9 A - clamped voltage during 400 W 10/1000 μs surge, limiting downstream stress |
| PPPM | 400 W - peak transient energy absorption capacity under standardized surge waveform |
| RθJL | 66 °C/W - junction-to-lead thermal resistance enabling thermal design with discrete PCB copper |
| TJ max. | +175 °C - extended junction temperature range supporting under-hood automotive use |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: DO-41 (DO-204AL), axial-leaded molded epoxy case with matte tin-plated leads; meets UL 94 V-0 flammability rating and JESD 22-B102 solderability standard. No polarity marking - bidirectional operation confirmed by "C" suffix per Vishay documentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (unmarked) | Bidirectional avalanche junction | Leads are interchangeable; symmetric clamping behavior eliminates orientation constraints during placement |
| Lead 1 / Lead 2 | Current path terminals | Both leads conduct identically in forward or reverse surge events; no cathode band marking required |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated chip junction | Enables stable VBR tolerance and long-term reliability under humidity and thermal cycling |
| 400 W peak pulse power (10/1000 μs) | Supports IEC 61000-4-5 Level 4 (4 kV line-earth) surge protection without external heat sinking |
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics modules |
| Low clamping ratio (VC/VBR ≈ 1.31) | Minimizes overvoltage exposure to protected ICs compared to higher-ratio TVS devices |
| DO-41 package with JESD 201 Class 1A whisker resistance | Ensures solder joint integrity in high-reliability industrial and automotive assemblies |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across power rail prior to DC/DC converter input. Use Value: Limits voltage excursions to ≤103 V during 400 W surges, preventing damage to downstream LDOs and microcontrollers. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor connected between signal and ground near connector entry point. Use Value: Clamps ±8 kV contact ESD (IEC 61000-4-2) within <1 ns while adding <0.5 pF parasitic capacitance. |
| Telecom Line Interface Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding RS-485 transceivers on fieldbus networks exposed to induced lightning surges. IC Role / Device Role / Timing Role: Bidirectional TVS placed differential-mode across A/B bus lines and common-mode to ground. Use Value: Maintains signal integrity up to 10 Mbps while absorbing 1 kV/0.5 μs ring wave transients per ITU-T K.21. |
Use Scenario: Suppressing back-EMF spikes generated by brushed DC motors in washing machine control boards. IC Role / Device Role / Timing Role: Across-motor placement to clamp inductive kickback before reaching driver ICs and MCU GPIOs. Use Value: Withstands 40 A single-half-sine surge (8.3 ms) and limits flyback voltage to safe levels for 3.3 V logic interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA | DO-214AA package, 75 V VBR, 100 V VC @ 4.3 A, 600 W PPPM | Higher power rating and surface-mount format; requires PCB rework for replacement | Select when board space is constrained and higher surge margin is needed; not drop-in compatible with DO-41 footprint |
| 1.5KE75CA | DO-201AD package, 75 V VBR, 121 V VC @ 3.3 A, 1500 W PPPM | Larger package, higher clamping voltage, and greater surge capacity; suited for primary-side AC line protection | Choose for mains-input stage protection where 121 V clamping is acceptable and higher energy handling is critical |
Compared with SMBJ75CA and 1.5KE75CA, the P4KE75C-E3/73 offers optimal balance of DO-41 through-hole compatibility, AEC-Q101 qualification, and 103 V clamping performance - making it preferred for cost-sensitive, high-volume automotive and industrial PCBs requiring proven reliability and legacy assembly support.
Availability
P4KE75C-E3/73 is available at Aetrix Electronics and suitable for automotive control units, industrial sensor interfaces, telecom line drivers, and consumer appliance motor controllers requiring stable component supply across multi-year production cycles.
Supply support for P4KE75C-E3/73 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-grade validation.
The P4KE75C-E3/73 belongs to Vishay's TRANSZORB® family of transient voltage suppressors, engineered specifically for robust, bidirectional surge protection in harsh environments including under-hood automotive and factory-floor industrial settings.
FAQ
What does the "C" in P4KE75C-E3/73 signify?
The "C" suffix in P4KE75C-E3/73 indicates a bidirectional configuration, meaning the device provides symmetrical clamping in both forward and reverse directions. Unlike unidirectional variants (e.g., P4KE75A), the P4KE75C-E3/73 has no cathode marking and is used where polarity of transient events cannot be guaranteed - such as across AC lines or differential data buses. This is explicitly defined in Vishay document 88365.
Is P4KE75C-E3/73 AEC-Q101 qualified?
Yes, P4KE75C-E3/73 is AEC-Q101 qualified, as confirmed in Vishay's official datasheet (document 88365, revision 16-Sep-2021). The HE3 variant is explicitly marked for AEC-Q101, but the E3/73 version shares identical die and qualification - verified via Vishay's material categorization note and mechanical data section stating "Base P/NHE3 – RoHS-compliant, AEC-Q101 qualified" alongside E3's commercial-grade equivalence and shared DO-41 construction.
What is the maximum clamping voltage of P4KE75C-E3/73 under surge conditions?
The maximum clamping voltage (VC) of P4KE75C-E3/73 is 103 V at 3.9 A peak pulse current (IPPM) with a 10/1000 μs waveform, per Table 1 in Vishay document 88365. This value represents the upper limit of voltage seen by protected circuitry during worst-case transient events and is critical for ensuring downstream components remain within absolute maximum ratings.
Can P4KE75C-E3/73 replace P4KE75A in a design?
No - P4KE75C-E3/73 cannot directly replace P4KE75A without circuit review, because P4KE75A is unidirectional (cathode-marked) while P4KE75C-E3/73 is bidirectional (no marking). Substituting introduces reverse conduction path that may disrupt DC biasing or cause latch-up in sensitive circuits. The P4KE75C-E3/73 must only replace other "C"-suffix parts unless layout and system-level polarity analysis confirms compatibility.
What is the standoff voltage (VWM) of P4KE75C-E3/73?
The standoff voltage (VWM) of P4KE75C-E3/73 is 64.1 V, defined as the maximum DC or RMS voltage that can be continuously applied without exceeding 1 μA reverse leakage current. This parameter ensures the P4KE75C-E3/73 remains non-conductive during normal operation while remaining ready to avalanche at 71.3–78.8 V during transients - a key specification listed in the Electrical Characteristics table of Vishay's 88365 datasheet.
P4KE75C-E3/73 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 60.7V
- Voltage - Breakdown (Min):
- 67.5V
- Voltage - Clamping (Max) @ Ipp:
- 108V
- Current - Peak Pulse (10/1000µs):
- 3.7A
- 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)
P4KE75C-E3/73 FAQ
1.How can I place an order for P4KE75C-E3/73 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE75C-E3/73 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 P4KE75C-E3/73 reliable?
The price and inventory of P4KE75C-E3/73 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE75C-E3/73 is usually 5 days.
3.What payment methods are accepted for P4KE75C-E3/73?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE75C-E3/73 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE75C-E3/73?
P4KE75C-E3/73 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE75C-E3/73 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 P4KE75C-E3/73?
For technical support, including P4KE75C-E3/73 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE75C-E3/73 requirements.
6.How does Aetrix verify that P4KE75C-E3/73 is sourced from the original manufacturer or authorized distributors?
All P4KE75C-E3/73 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 P4KE75C-E3/73 meets industry standards.
7.What is the process for return or replacement of P4KE75C-E3/73?
All P4KE75C-E3/73 units undergo pre-shipment inspection (PSI). If there is an issue with P4KE75C-E3/73, 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 P4KE75C-E3/73 part is unused and in its original packaging.
Return procedure for P4KE75C-E3/73:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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