My Inquiry
My Account
Taiwan Semiconductor Corporation P4KE75AH
- Part No.:
- P4KE75AH
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE75AH.pdf
- Description:
- TVS DIODE 64.1VWM 103VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:9,235
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
P4KE75AH from Taiwan Semiconductor is a unidirectional 400W transient voltage suppressor (TVS) diode designed for primary overvoltage protection in DC power rails and signal lines. It features a 75V nominal breakdown voltage (67.5–82.5V at 1mA), 60.7V working stand-off voltage, 108V maximum clamping voltage at 3.8A peak pulse current, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the P4KE75AH datasheet, P4KE75AH pinout, P4KE75AH application, or P4KE75AH equivalent, key selection criteria include clamping performance under 10/1000μs surge, low leakage (<1μA @ 60.7V), DO-41 package compatibility, and AEC-Q101 compliance for harsh-environment deployments.
Technical Context
The P4KE75AH operates as a unidirectional avalanche diode with fast response time (<1.0ps from 0V to VBR) and low dynamic impedance, enabling effective suppression of ESD and electrical fast transients (EFT). Its junction temperature range spans −55°C to +175°C, supporting operation in under-hood automotive and industrial control environments.
It delivers 400W peak pulse power per 10/1000μs waveform, with clamping voltage tightly bounded at 108V under 3.8A surge current. The device exhibits a positive temperature coefficient of VBR (+0.105%/°C), ensuring stable breakdown behavior across thermal excursions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 60.7 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe DC rail margin. |
| VBR @ IT=1mA | 67.5–82.5 V - Breakdown voltage range at test current; ensures reliable turn-on during transients without premature conduction. |
| VC @ IPPM=3.8A | 108 V - Clamping voltage under full 400W surge; determines maximum stress imposed on protected downstream ICs. |
| IPPM | 3.8 A - Peak pulse current capability at 10/1000μs; quantifies surge energy absorption capacity. |
| IR @ VWM | <1 μA - Reverse leakage at stand-off voltage; minimizes standby power loss and avoids false triggering. |
| TJ max | +175 °C - Maximum junction temperature; enables use in high-ambient environments like engine control units. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress-test requirements including temperature cycling, HTRB, and ESD. |
Pinout & Package
Package: DO-204AL (DO-41), axial-leaded, epoxy-molded case with UL 94V-0 flammability rating and pure tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-potential node; completes conduction path during reverse-biased transient clamping. |
| Cathode (banded end) | High-side transient input terminal | Connected to protected line (e.g., 12V rail); avalanche conduction initiates here when VAK exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces. |
| 400W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4kV, 2Ω source) without degradation when properly mounted. |
| <1.0ps response time | Clamps transients before sensitive logic or analog circuitry experiences overvoltage stress. |
| UL 94V-0 molding compound | Provides flame-retardant housing essential for safety-critical automotive and industrial enclosures. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive for environmentally constrained supply chains. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12V/24V battery-fed ECUs against load dump and alternator transients. IC Role / Device Role / Timing Role: Primary clamping element placed directly at connector entry point to shunt surge energy to chassis ground. Use Value: Limits rail voltage to ≤108V during 400W surges, preventing damage to microcontrollers and CAN transceivers rated for 36V absolute max. | Use Scenario: Safeguarding 4–20mA current-loop sensors in factory automation systems exposed to inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional TVS placed across sensor output terminals to clamp negative-going transients induced by relay coil de-energization. Use Value: Maintains signal integrity by suppressing >1kV EFT bursts while adding <1pF junction capacitance-no impact on loop bandwidth. |
| LED Driver Input Protection | USB Port ESD Suppression |
Use Scenario: Front-end protection for constant-current LED drivers powered from unregulated DC supplies. IC Role / Device Role / Timing Role: Standoff-rated TVS connected anode-to-ground, cathode-to-input, absorbing line-to-ground surges before they reach driver ICs. Use Value: Withstands repeated 10/1000μs surges up to 400W without parameter shift, extending driver lifetime in outdoor signage applications. | Use Scenario: Secondary-level ESD protection on USB 2.0 VBUS lines in embedded host devices. IC Role / Device Role / Timing Role: Unidirectional clamping device placed between VBUS and ground to divert ±15kV HBM ESD events per IEC 61000-4-2. Use Value: Achieves <1μA leakage at 5V nominal VWM (derated from 60.7V), eliminating standby current penalty while meeting Class 4 immunity. |
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 | Surface-mount SMB package (vs. axial DO-41); 75V VBR min 71.3V; 103V VC @ 3.9A. | Requires PCB rework for SMT layout; better thermal dissipation in dense layouts but lower surge robustness (600W vs. 400W). | Select SMBJ75A only when board space constraints prohibit axial components and higher clamping margin is acceptable. |
| 1.5KE75A | Higher 1500W rating; same DO-41 package; VBR 71.3–78.8V; VC 121V @ 12.3A. | Over-spec'd for most 400W applications; larger physical size and higher cost; clamps at significantly higher voltage. | Choose 1.5KE75A only when legacy designs require backward-compatible footprint with upgraded surge headroom. |
Compared with SMBJ75A and 1.5KE75A, the P4KE75AH offers optimal balance of AEC-Q101 qualification, compact DO-41 form factor, and precise 108V clamping-making it ideal for cost-sensitive, high-reliability automotive and industrial power rail protection where strict voltage limiting is critical.
Availability
P4KE75AH is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, LED driver inputs, and USB port protection requiring stable component supply and long-term lifecycle support.
Supply support for P4KE75AH 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 automotive-qualified components since 1979.
The P4KE series belongs to TSC's AEC-Q101-qualified transient suppression portfolio, engineered specifically for robust overvoltage protection in automotive power distribution, industrial control, and lighting systems.
FAQ
What is the clamping voltage of the P4KE75AH under a 10/1000μs surge?
The P4KE75AH clamps to a maximum of 108 V when subjected to its rated 3.8 A peak pulse current under the standard 10/1000μs waveform. This value is guaranteed across temperature and process variation per the manufacturer's datasheet and defines the upper voltage limit imposed on protected circuitry during surge events.
Is the P4KE75AH suitable for bidirectional transient protection?
No, the P4KE75AH is a unidirectional TVS diode intended for DC line protection where polarity is fixed. For bidirectional applications such as AC lines or data buses, a P4KE75A variant (with "CA" suffix) or dedicated bidirectional part must be used-P4KE75AH conducts only in reverse breakdown and will forward-conduct if exposed to sustained positive voltage beyond its VF rating.
Does the P4KE75AH meet automotive qualification standards?
Yes, the "H" suffix in P4KE75AH explicitly denotes AEC-Q101 qualification. This includes validation across temperature cycling, high-temperature reverse bias (HTRB), and ESD testing per JESD22-A114, confirming suitability for under-hood and body-control module applications in passenger vehicles and commercial fleets.
What is the maximum steady-state power dissipation for the P4KE75AH?
The P4KE75AH has a steady-state power dissipation (PD) rating of 1 W at lead temperature (TL) = 75°C with 9.5 mm lead lengths mounted on 5 × 5 mm copper pads. This derates linearly above 75°C and must be considered in thermally constrained designs where continuous leakage or bias current could cause self-heating.
How does the P4KE75AH compare to the P4KE75A in terms of electrical performance?
The P4KE75AH shares identical electrical characteristics with P4KE75A-including VBR (71.3–78.8 V), VC (103 V), and IPPM (4.0 A)-but adds AEC-Q101 qualification and enhanced process controls for automotive use. Both use DO-41 packaging, but only P4KE75AH carries the "H" suffix confirming automotive stress-test compliance.
P4KE75AH 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:
- -
- 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)
P4KE75AH FAQ
1.How can I place an order for P4KE75AH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE75AH 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 P4KE75AH reliable?
The price and inventory of P4KE75AH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE75AH is usually 5 days.
3.What payment methods are accepted for P4KE75AH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE75AH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE75AH?
P4KE75AH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE75AH 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 P4KE75AH?
For technical support, including P4KE75AH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE75AH requirements.
6.How does Aetrix verify that P4KE75AH is sourced from the original manufacturer or authorized distributors?
All P4KE75AH 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 P4KE75AH meets industry standards.
7.What is the process for return or replacement of P4KE75AH?
All P4KE75AH units undergo pre-shipment inspection (PSI). If there is an issue with P4KE75AH, 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 P4KE75AH part is unused and in its original packaging.
Return procedure for P4KE75AH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE75AH Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
