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Taiwan Semiconductor Corporation P4KE75CAH
- Part No.:
- P4KE75CAH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE75CAH.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:4,116
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Product details
Overview
P4KE75CAH from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for high-energy surge protection in automotive and industrial power rails. It features a 75V nominal standoff voltage, 108V maximum clamping voltage at 3.8A peak pulse current, 400W peak pulse power rating per 10/1000μs waveform, and AEC-Q101 qualification for under-hood applications.
For engineers reviewing the P4KE75CAH datasheet, P4KE75CAH pinout, P4KE75CAH application, or P4KE75CAH equivalent, key selection criteria include bidirectional clamping performance, low leakage (<1μA at 60.7V), fast response time (<5.0ns), DO-41 package compatibility, and compliance with IEC 61000-4-4/5 EFT/surge immunity requirements.
Technical Context
The P4KE75CAH operates as a voltage-clamped shunt protector, entering avalanche breakdown when transient voltage exceeds its 67.5–82.5V breakdown range (tested at 1mA). Its bidirectional symmetry ensures identical clamping behavior in both polarities, eliminating need for polarity-aware PCB layout.
Thermal design relies on junction-to-lead conduction through DO-41 leads rated for 1W steady-state dissipation at 75°C lead temperature, with derating to zero at 175°C junction max. The device sustains 40A non-repetitive forward surge (8.3ms half-sine) and exhibits <0.105%/°C VBR temperature coefficient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 75V - defines rated working stand-off level before clamping activation |
| Breakdown Voltage VBR | 67.5–82.5V @ 1mA - guaranteed avalanche onset window for reliable overvoltage detection |
| Working Stand-off Voltage VWM | 60.7V - maximum continuous reverse voltage without significant leakage |
| Clamping Voltage VC | 108V @ 3.8A - peak voltage seen by protected circuit during 400W 10/1000μs surge |
| Peak Pulse Power PPK | 400W - energy-handling capacity per single transient event per IEC 61000-4-5 |
| Junction Temperature Range | −55°C to +175°C - supports operation in engine bay, industrial controls, and outdoor enclosures |
| Leakage Current ID | <1μA @ 60.7V - negligible standby power loss and signal integrity impact |
Pinout & Package
Package: DO-204AL (DO-41) - axial-leaded, glass-passivated, RoHS-compliant package with pure tin-plated leads solderable per J-STD-002; meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No polarity marking required; identical electrical behavior in either direction |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive under-hood use including temperature cycling, humidity, and mechanical shock |
| 400W surge capability (10/1000μs) | Protects against IEC 61000-4-5 Level 4 surges (4kV line-earth, 2kV line-line) without degradation |
| Clamping response <5.0ns | Engages before most microcontroller I/O or power supply ICs can be damaged by fast transients |
| Low impedance dynamic clamping | Ensures minimal voltage overshoot during high di/dt events like inductive load switching |
| Halogen-free & RoHS compliant | Meets IEC 61249-2-21 and EU RoHS Directive 2011/65/EU for green manufacturing |
Applications
| Automotive Power Rail Protection | Industrial PLC I/O Module Protection |
|---|---|
|
Use Scenario: 12V/24V battery-fed ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Shunt TVS placed across input rail to clamp transients before they reach DC-DC converters and MCU power pins. Use Value: Withstands 400W surges and maintains clamping at ≤108V, preventing overvoltage damage to downstream 3.3V/5V logic supplies. |
Use Scenario: Analog input channels in programmable logic controllers subjected to field-wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional TVS installed at terminal block entry to suppress ±8kV contact ESD (IEC 61000-4-2) and 1kV EFT bursts (IEC 61000-4-4). Use Value: Symmetric clamping ensures protection regardless of signal polarity; <1μA leakage avoids loading precision sensor inputs. |
| LED Driver Overvoltage Suppression | AC-DC Adapter Input Stage Protection |
|
Use Scenario: Constant-current LED drivers in street lighting exposed to lightning-induced surges on long feeder lines. IC Role / Device Role / Timing Role: Primary-stage TVS across bulk capacitor input to limit transient voltage during line surges. Use Value: 108V clamping prevents overvoltage stress on 100V-rated electrolytic capacitors and MOSFETs in primary-side regulation. |
Use Scenario: Universal-input AC-DC adapters encountering differential-mode surges on live-neutral lines. IC Role / Device Role / Timing Role: Bidirectional TVS across AC input terminals to absorb common-mode and differential-mode transients. Use Value: DO-41 package enables direct inline mounting; AEC-Q101 qualification adds reliability margin even in non-automotive consumer adapters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ75CA | Surface-mount SMB package (vs. axial DO-41); same 75V VWM, 113V VC @ 3.5A, 600W rating | Requires PCB re-layout; better thermal performance in high-density designs but lacks AEC-Q101 qualification | Select when board space is constrained and automotive qualification is not required |
| 1.5KE75CA | Higher 1500W rating; larger DO-201AE package; 115V VC @ 13A; no AEC-Q101 qualification | Over-spec for most 400W applications; higher cost and footprint; suitable only for extreme surge environments | Select only when legacy 1.5KE footprint compatibility is mandatory and AEC-Q101 is unnecessary |
Compared with SMBJ75CA and 1.5KE75CA, the P4KE75CAH offers optimal balance of AEC-Q101 compliance, DO-41 through-hole manufacturability, and precise 400W/108V clamping-making it ideal for cost-sensitive, high-reliability automotive and industrial power interfaces where qualification and ease of assembly are critical.
Availability
P4KE75CAH is available at Aetrix Electronics and suitable for automotive control units, industrial PLC I/O modules, LED driver power stages, and AC-DC adapter input protection requiring stable component supply and full AEC-Q101 traceability.
Supply support for P4KE75CAH 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 devices since 1979.
The P4KE series was engineered specifically for robust, cost-effective transient suppression in automotive and industrial power systems-emphasizing AEC-Q101 qualification, tight parameter distribution, and DO-41 compatibility for legacy and new designs alike.
FAQ
What does the "H" suffix in P4KE75CAH signify?
The "H" suffix in P4KE75CAH indicates full AEC-Q101 qualification-verified through temperature cycling, high-temperature operating life, unbiased highly accelerated stress testing, and mechanical shock per automotive reliability standards. This makes P4KE75CAH suitable for under-hood and safety-critical vehicle subsystems where standard commercial-grade TVS diodes are insufficient.
Is P4KE75CAH unidirectional or bidirectional?
P4KE75CAH is a bidirectional TVS diode, as confirmed by the "CA" suffix and specifications showing symmetric breakdown (67.5–82.5V) and clamping behavior in both polarities. It requires no polarity marking on PCB and protects against positive and negative transients equally-ideal for AC lines, differential signals, and floating power rails.
What is the maximum clamping voltage of P4KE75CAH under surge conditions?
The maximum clamping voltage of P4KE75CAH is 108V when subjected to its rated 3.8A peak pulse current (IPPM), corresponding to a 400W 10/1000μs surge waveform. This value is guaranteed across the full operating temperature range and ensures protected circuits remain below safe overvoltage thresholds during standardized surge events.
Can P4KE75CAH replace P4KE75C in an existing design?
Yes-P4KE75CAH is a direct AEC-Q101-qualified replacement for P4KE75C, sharing identical electrical parameters (VWM = 60.7V, VBR = 67.5–82.5V, VC = 108V), DO-41 package, and pinout. The "H" variant adds automotive qualification without altering form, fit, or function, enabling drop-in reliability upgrade in legacy industrial or automotive designs.
What is the leakage current specification for P4KE75CAH at its working voltage?
P4KE75CAH exhibits ≤1μA reverse leakage current at its maximum working stand-off voltage of 60.7V, measured at 25°C. This ultra-low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes standby power loss in battery-powered systems-critical for precision analog and energy-efficient applications.
P4KE75CAH 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:
- -
- 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)
P4KE75CAH FAQ
1.How can I place an order for P4KE75CAH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE75CAH 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 P4KE75CAH reliable?
The price and inventory of P4KE75CAH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE75CAH is usually 5 days.
3.What payment methods are accepted for P4KE75CAH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE75CAH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE75CAH?
P4KE75CAH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE75CAH 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 P4KE75CAH?
For technical support, including P4KE75CAH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE75CAH requirements.
6.How does Aetrix verify that P4KE75CAH is sourced from the original manufacturer or authorized distributors?
All P4KE75CAH 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 P4KE75CAH meets industry standards.
7.What is the process for return or replacement of P4KE75CAH?
All P4KE75CAH units undergo pre-shipment inspection (PSI). If there is an issue with P4KE75CAH, 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 P4KE75CAH part is unused and in its original packaging.
Return procedure for P4KE75CAH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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