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Taiwan Semiconductor Corporation P4KE75CA
- Part No.:
- P4KE75CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE75CA.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,754
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Product details
Overview
P4KE75CA from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in DC power lines and signal interfaces. It features a 75V nominal standoff voltage, 108V maximum clamping voltage at 3.8A peak pulse current, 400W peak pulse power rating at 10/1000μs waveform, and DO-204AL (DO-41) axial package - deployed in automotive lighting control modules to safeguard microcontroller I/O against load dump transients.
For engineers reviewing the P4KE75CA datasheet, P4KE75CA pinout, P4KE75CA application, or P4KE75CA equivalent, key selection criteria include bidirectional clamping capability, low leakage (<1μA at 60.7V), fast response time (<5ns), AEC-Q101 qualification, and compatibility with 10/1000μs surge immunity testing per ISO 7637-2 and IEC 61000-4-5.
Technical Context
The P4KE75CA operates as a voltage-clamped shunt protector: when transient voltage exceeds its breakdown threshold (67.5–82.5V at 1mA), it avalanches into low-impedance conduction to divert surge current away from downstream circuitry. Its bidirectional symmetry enables protection of AC-coupled or floating signal paths without polarity constraints.
Thermal design relies on junction-to-lead thermal resistance (RθJL) inherent to the DO-41 package, supporting continuous operation up to 175°C junction temperature. The device meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance standards, confirming suitability for automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 75 V - defines rated working standoff level before avalanche onset |
| Breakdown Voltage VBR | 67.5–82.5 V at 1 mA - ensures reliable triggering within specified tolerance band |
| Clamping Voltage VC | 108 V at 3.8 A peak pulse - limits maximum voltage seen by protected IC during 10/1000μs surge |
| Peak Pulse Power | 400 W - sustains single 10/1000μs transients without degradation |
| Reverse Leakage ID | <1 μA at 60.7 V - minimizes standby power loss in always-on circuits |
| Response Time | <5 ns - enables effective suppression of fast EFT bursts and switching noise |
| Junction Temperature | −55°C to +175°C - supports operation in engine control units and industrial motor drives |
Pinout & Package
DO-204AL (DO-41) axial-leaded package with cathode band marking for unidirectional variants; P4KE75CA is bidirectional and lacks polarity marking - both terminals are functionally identical and interchangeable in circuit layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional avalanche junction | Either terminal serves as input/output - no PCB orientation dependency |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and mechanical shock |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes overvoltage stress on protected ICs compared to higher-ratio TVS devices |
| UL 94V-0 molding compound | Prevents flame propagation in enclosed automotive housings during fault conditions |
| Pure tin-plated leads | Ensures solderability per J-STD-002 and eliminates lead-free assembly compatibility issues |
| Halogen-free construction | Complies with IEC 61249-2-21 for environmentally regulated supply chains |
Applications
| Automotive Lighting Control | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN transceivers and LED driver ICs from load dump and jump-start surges in headlamp modules. IC Role / Device Role / Timing Role: Shunt clamping element placed across power rail inputs to absorb 400W transients without affecting normal 12V/24V operation. Use Value: Prevents latch-up or permanent damage to 5V logic interfaces while maintaining <1μA quiescent leakage. |
Use Scenario: Safeguarding 24V digital input channels in programmable logic controllers exposed to inductive kickback from solenoid valves. IC Role / Device Role / Timing Role: Bidirectional voltage clamp installed between field-side input and isolation barrier to limit transient energy entering the controller ASIC. Use Value: Enables compliance with IEC 61000-4-4 EFT immunity (4kV) without adding series impedance or signal delay. |
| USB-C Power Delivery Interface | Smart Meter Communication Port |
Use Scenario: Protecting USB-C CC and VCONN pins against electrostatic discharge and hot-swap transients during plug insertion. IC Role / Device Role / Timing Role: Low-capacitance TVS placed directly at connector footprint to clamp sub-5ns ESD events before reaching USB PD controller. Use Value: Achieves >15kV contact ESD protection (IEC 61000-4-2) with minimal signal distortion due to symmetric bidirectional response. |
Use Scenario: Shielding RS-485 transceivers in utility smart meters from lightning-induced surges on long outdoor communication lines. IC Role / Device Role / Timing Role: Primary surge diverter mounted at meter's external port entry point, coordinated with GDT secondary protection. Use Value: Limits induced line-to-line voltage to ≤108V during 10/1000μs surges, preserving transceiver integrity per ANSI C12.1 and IEC 62056 standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ75CA | Same DO-214AC (SMA) package; 108V clamping at 3.8A; slightly higher leakage (≤5μA @ 60.7V) | Surface-mount alternative requiring PCB redesign; better thermal dissipation in high-density layouts | Select when board space is constrained and reflow assembly is preferred over through-hole |
| ON Semiconductor 1.5KE75CA | Higher peak power (1500W); larger DO-201AD package; 113V clamping at 13.3A; same VBR range | Used where multi-pulse or repetitive surge exposure exceeds 400W single-event limits | Choose for industrial motor drive gate drivers needing higher energy absorption margin |
Compared with SMAJ75CA and 1.5KE75CA, the P4KE75CA offers optimal balance of axial through-hole manufacturability, AEC-Q101 qualification, and precise 400W single-pulse capability - making it ideal for cost-sensitive automotive body electronics where PCB real estate and qualification rigor are prioritized over ultra-high energy handling.
Availability
P4KE75CA is available at Aetrix Electronics and suitable for automotive lighting systems, industrial PLC I/O modules, USB-C power delivery interfaces, and smart meter communication ports requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P4KE75CA 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
Taiwan Semiconductor Corporation (TSC) is a vertically integrated analog and discrete semiconductor manufacturer headquartered in Hsinchu, Taiwan, specializing in TVS diodes, rectifiers, and power MOSFETs for automotive and industrial markets.
The P4KE series was developed specifically for AEC-Q101-compliant transient suppression in 12V/24V automotive subsystems and ruggedized industrial controls - emphasizing robustness, tight parameter distribution, and halogen-free compliance.
FAQ
What is the breakdown voltage range of the P4KE75CA?
The P4KE75CA has a guaranteed breakdown voltage range of 67.5 V to 82.5 V at 1 mA test current, measured per ANSI/IEEE C62.35 standards. This range ensures consistent avalanche initiation across production lots and temperature extremes, enabling predictable clamping behavior in automotive and industrial applications where voltage margins are tightly controlled.
Is the P4KE75CA suitable for bidirectional signal line protection?
Yes, the P4KE75CA is explicitly designed as a bidirectional TVS diode - confirmed by its CA suffix, symmetrical VBR specification in both directions, and absence of polarity marking. It protects AC-coupled data lines like RS-485, CAN FD, and audio interfaces without requiring orientation-aware placement on PCBs.
Does the P4KE75CA meet automotive qualification standards?
Yes, the P4KE75CA is AEC-Q101 qualified - verified through accelerated stress tests including high-temperature reverse bias, temperature cycling, and mechanical shock. This certification confirms its suitability for under-hood and cabin applications in passenger vehicles and commercial trucks per ISO/TS 16949 requirements.
What is the maximum clamping voltage of the P4KE75CA during a surge event?
The P4KE75CA clamps to a maximum of 108 V when subjected to its rated 3.8 A peak pulse current under the standard 10/1000 μs waveform. This value is measured at TA = 25°C and defines the upper voltage limit imposed on protected circuitry during transient suppression - critical for ensuring downstream ICs remain within absolute maximum ratings.
Can the P4KE75CA be used in place of unidirectional TVS diodes?
No - the P4KE75CA is strictly bidirectional and must not replace unidirectional variants (e.g., P4KE75A) in DC-biased circuits where polarity-specific clamping is required. Substituting it in such designs risks unintended conduction during normal forward bias, leading to excessive leakage or thermal runaway. Always verify circuit topology before interchange.
P4KE75CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-204AL, DO-41, Axial
- Series:
- P4KE
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 64.1V
- Voltage - Breakdown (Min):
- 71.3V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 4A
- 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)
P4KE75CA FAQ
1.How can I place an order for P4KE75CA through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE75CA 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 P4KE75CA reliable?
The price and inventory of P4KE75CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE75CA is usually 5 days.
3.What payment methods are accepted for P4KE75CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE75CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE75CA?
P4KE75CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE75CA 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 P4KE75CA?
For technical support, including P4KE75CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE75CA requirements.
6.How does Aetrix verify that P4KE75CA is sourced from the original manufacturer or authorized distributors?
All P4KE75CA 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 P4KE75CA meets industry standards.
7.What is the process for return or replacement of P4KE75CA?
All P4KE75CA units undergo pre-shipment inspection (PSI). If there is an issue with P4KE75CA, 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 P4KE75CA part is unused and in its original packaging.
Return procedure for P4KE75CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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