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Taiwan Semiconductor Corporation P4KE75A
- Part No.:
- P4KE75A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE75A.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:7,936
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Product details
Overview
P4KE75A from Taiwan Semiconductor is a unidirectional 400W transient voltage suppressor (TVS) diode designed for primary-side overvoltage protection in DC power rails and signal lines. It features a 75V nominal breakdown voltage (71.3–78.8V at 1mA), 64.1V working stand-off voltage, 103V maximum clamping voltage at 4.0A peak pulse current, and DO-204AL (DO-41) axial package - used in automotive power supply input stages to absorb load dump and ISO 7637-2 pulses.
For engineers reviewing the P4KE75A datasheet, P4KE75A pinout, P4KE75A application, or P4KE75A equivalent, key selection criteria include clamping voltage margin relative to protected IC VMAX, leakage current at operating voltage, surge waveform compliance (10/1000μs), thermal derating above 25°C, and AEC-Q101 qualification status for automotive deployment.
Technical Context
The P4KE75A operates as a silicon avalanche diode with fast response (<1.0ps rise time from 0V to VBR) and low dynamic impedance, enabling effective suppression of fast-rising transients such as ESD (IEC 61000-4-2) and EFT (IEC 61000-4-4). Its unidirectional polarity ensures forward conduction only during reverse overvoltage events.
It is rated for 400W non-repetitive peak pulse power per 10/1000μs waveform, with junction temperature range from –55°C to +175°C and steady-state power dissipation of 1W at 75°C lead temperature. The device meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 64.1 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for safe DC rail operation |
| VBR @ IT=1mA | 71.3–78.8 V - Breakdown onset range; defines threshold where clamping begins under standardized test current |
| VC @ IPPM=4.0A | 103 V - Maximum clamped voltage during 10/1000μs surge; determines worst-case stress on downstream components |
| IPPM | 4.0 A - Peak pulse current corresponding to VC; used with VC to calculate actual surge energy handling |
| PPK | 400 W - Peak pulse power rating at TA=25°C; derates linearly above ambient per Fig.2 in datasheet |
| TJ max | +175 °C - Maximum junction temperature; supports high-temperature under-hood automotive environments |
| Package | DO-204AL (DO-41) - Axial-leaded through-hole package with tin-plated leads; compatible with wave soldering per J-STD-002 |
Pinout & Package
DO-204AL (DO-41) axial package with cathode band marking. Leads are pure tin-plated and solderable per J-STD-002. Polarity is unidirectional: cathode (banded end) connects to protected circuit's higher-potential side (e.g., VIN), anode to ground or lower-potential return path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return; carries full surge current to earth/reference plane |
| Cathode | Protected line terminal | Connected to input rail (e.g., 48V battery feed); clamps reverse transients by avalanching to anode |
Key Features
| Feature | Design Value |
|---|---|
| 400W peak pulse power | Handles ISO 7637-2 Pulse 5a (load dump) up to 400W without failure when mounted per JEDEC standards |
| <1.0ps response time | Clamps sub-nanosecond ESD events before sensitive logic or analog inputs experience overstress |
| 103V clamping at 4A | Provides ≥15% margin below typical 120V-rated automotive MCU I/O absolute maximum ratings |
| AEC-Q101 qualified option | P4KE75AH variant available for automotive-grade reliability; standard P4KE75A is industrial-qualified |
| UL 94V-0 molding compound | Ensures flame-retardant encapsulation for safety-critical power entry points in industrial controls |
Applications
| Automotive Power Input Protection | Industrial DC Power Rail Clamping |
|---|---|
Use Scenario: 12V/24V/48V vehicle battery feed lines exposed to load dump (ISO 7637-2 Pulse 5a) and jump-start surges. IC Role / Device Role: Primary overvoltage clamp placed upstream of DC-DC converters and microcontroller power supplies. Use Value: Limits transient voltage to ≤103V, protecting downstream 120V-rated power management ICs and reducing need for oversized input capacitors. | Use Scenario: 24–48V programmable logic controller (PLC) backplane power distribution with inductive switching noise. IC Role / Device Role: Standoff protection for isolated power supplies and digital I/O drivers against repetitive switching spikes. Use Value: Maintains <1μA leakage at 64.1V, minimizing standby current loss while clamping 10/1000μs surges to safe levels. |
| LED Driver Surge Suppression | RS-485 Transceiver Line Protection |
Use Scenario: Constant-current LED driver inputs subjected to hot-swap transients and cable discharge events. IC Role / Device Role: Front-end TVS on input capacitor node to prevent overvoltage damage to MOSFET gate drivers and current sense amplifiers. Use Value: Fast <1.0ps response prevents latch-up in high-speed current controllers; DO-41 package allows easy placement near connector entry points. | Use Scenario: RS-485 data lines in factory automation systems exposed to EFT bursts and ground potential differences. IC Role / Device Role: Unidirectional TVS on A/B differential pair referenced to local ground, suppressing common-mode surges. Use Value: 103V clamping ensures transceiver I/O remains within ±13.2V common-mode range (TIA-485-A), preventing receiver saturation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75A (Bourns) | Same 75V nominal, 103V VC, but SMC package (surface-mount); 600W peak power rating | Requires PCB rework for SMT layout; better thermal performance in compact designs | Select SMBJ75A when board space is constrained and automated assembly is preferred |
| 1.5KE75A (ON Semiconductor) | Identical DO-204AL package and electrical specs (71.3–78.8V VBR, 103V VC), but not AEC-Q101 qualified | Valid for industrial use; lacks automotive qualification documentation and traceability | Select 1.5KE75A for cost-sensitive non-automotive applications where qualification is not required |
Compared with SMBJ75A and 1.5KE75A, the P4KE75A offers identical clamping performance in a through-hole DO-41 package optimized for manual prototyping and high-reliability industrial repairs, while supporting AEC-Q101-compliant variants (P4KE75AH) for automotive production.
Availability
P4KE75A is available at Aetrix Electronics and suitable for automotive power input protection, industrial DC rail clamping, LED driver surge suppression, and RS-485 transceiver line protection requiring stable component supply across design-in, NPI, and volume production phases.
Supply support for P4KE75A 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 semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and thyristors, with global distribution and AEC-Q101 qualification capability.
The P4KE series belongs to TSC's transient voltage suppressor product line, engineered specifically for robust, cost-effective overvoltage protection in automotive, industrial, and lighting applications where high surge immunity and long-term reliability are critical.
FAQ
What is the maximum clamping voltage of the P4KE75A under standard 10/1000μs surge conditions?
The P4KE75A has a maximum clamping voltage (VC) of 103 V at 4.0 A peak pulse current under the 10/1000μs waveform. This value is measured per ANSI/IEEE C62.35 and represents the worst-case voltage seen by downstream components during a standardized surge event. The P4KE75A maintains this clamping performance across its specified operating temperature range.
Is the P4KE75A suitable for automotive applications requiring AEC-Q101 qualification?
The base P4KE75A is not AEC-Q101 qualified; however, the P4KE75AH variant (same electrical specs, "H" suffix) is fully AEC-Q101 qualified and tested per stress test conditions including temperature cycling, HTRB, and ESD. For automotive production, specify P4KE75AH - the P4KE75A itself is intended for industrial and commercial use.
How does the P4KE75A compare to bidirectional TVS diodes like P4KE75CA?
The P4KE75A is unidirectional and must be installed with correct polarity (cathode to protected line), whereas P4KE75CA is bidirectional and symmetrical. The P4KE75A offers lower leakage (<1 μA at 64.1 V) and faster response (<1.0 ps) than the CA version, making it preferable for DC rail protection where polarity is fixed and low leakage is critical.
What is the thermal derating behavior of the P4KE75A above 25°C ambient?
The P4KE75A's peak pulse power rating of 400 W is specified at TA = 25°C and derates linearly above that temperature per Figure 2 in the datasheet. At 75°C ambient, its usable peak power drops to approximately 200 W. Steady-state power dissipation is limited to 1 W at 75°C lead temperature, with derating required beyond that point.
Can the P4KE75A be used in parallel to increase surge current handling?
No - the P4KE75A should not be paralleled due to mismatched VBR tolerances (±5% typical) causing uneven current sharing and potential thermal runaway. To handle higher surge currents, select a higher-power TVS (e.g., 1500W SMAJ series) or implement staged protection with upstream fusing. The P4KE75A is designed for single-device 400W surge suppression.
P4KE75A 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:
- 1
- Bidirectional Channels:
- -
- 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)
P4KE75A FAQ
1.How can I place an order for P4KE75A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE75A 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 P4KE75A reliable?
The price and inventory of P4KE75A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE75A is usually 5 days.
3.What payment methods are accepted for P4KE75A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE75A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE75A?
P4KE75A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE75A 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 P4KE75A?
For technical support, including P4KE75A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE75A requirements.
6.How does Aetrix verify that P4KE75A is sourced from the original manufacturer or authorized distributors?
All P4KE75A 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 P4KE75A meets industry standards.
7.What is the process for return or replacement of P4KE75A?
All P4KE75A units undergo pre-shipment inspection (PSI). If there is an issue with P4KE75A, 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 P4KE75A part is unused and in its original packaging.
Return procedure for P4KE75A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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