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Taiwan Semiconductor Corporation P4KE7.5H
- Part No.:
- P4KE7.5H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE7.5H.pdf
- Description:
- 400W, 7.5V, UNIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:9,370
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Product details
Overview
P4KE7.5H from Taiwan Semiconductor is a unidirectional 400W transient voltage suppressor (TVS) diode with a nominal breakdown voltage of 7.5V, working stand-off voltage of 6.05V, and clamping voltage of 11.7V at 35A peak pulse current. It features low leakage (<500μA), fast response (<1.0ps), and AEC-Q101 qualification for automotive-grade surge protection in DC power rails and I/O interfaces.
For engineers reviewing the P4KE7.5H datasheet, P4KE7.5H pinout, P4KE7.5H application, or P4KE7.5H equivalent, this device is selected for high-reliability overvoltage protection where precise clamping, low VWM margin, and automotive qualification are required - especially in 5V/6V system rails, sensor interfaces, and ESD-sensitive front-end circuits.
Technical Context
The P4KE7.5H operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 6.75–8.25V breakdown range at 10mA test current. Its 11.7V clamping voltage at 35A ensures robust protection against 10/1000μs transients while limiting downstream voltage stress to safe levels for 5V logic and analog ICs.
Designed for DO-204AL (DO-41) axial package mounting, it delivers 400W peak pulse power with <1.0ps response time and junction temperature tolerance up to +175°C. The device exhibits a +0.061%/°C VBR temperature coefficient and meets UL 94V-0 flammability and JESD201 Class 2 whisker resistance standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Nominal Voltage | 7.5V - defines primary clamping target for 5V–6V rail protection |
| Breakdown Voltage (VBR) | 6.75–8.25V @ 10mA - ensures reliable turn-on before system damage threshold |
| Working Stand-off Voltage (VWM) | 6.05V - maximum continuous reverse voltage without significant leakage |
| Clamping Voltage (VC) | 11.7V @ 35A - limits transient voltage seen by protected IC during 10/1000μs surge |
| Peak Pulse Power (PPK) | 400W - sustains single 10/1000μs surges per ANSI/IEEE C62.35 standard |
| Reverse Leakage (ID) | <500μA @ 6.05V - minimizes standby power loss and signal integrity impact |
| Junction Temperature Range | −55°C to +175°C - supports under-hood automotive and industrial ambient conditions |
Pinout & Package
Package: DO-204AL (DO-41), axial leaded, cathode band marked on body. Leads are pure tin-plated, solderable per J-STD-002, with 0.300g typical weight and UL 94V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Ground reference terminal | Connected to system ground or low-side return path; carries full surge current to earth |
| Cathode | Protected line input | Connected to the line being protected (e.g., 5V rail); blocks normal operation, avalanches during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including temperature cycling, HTRB, and ESD |
| 400W 10/1000μs surge rating | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surges without degradation |
| Clamping ratio (VC/VBR) | 1.73 (11.7V / 6.75V min) - tight ratio enables lower-voltage system compatibility |
| Low leakage <500μA @ VWM | Prevents false triggering and reduces quiescent current draw in always-on circuits |
| Sub-nanosecond response | <1.0ps rise time from 0V to VBR - faster than most microcontroller I/O protection needs |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protecting 5V CAN transceiver power supply and bias lines from load dump and inductive switching spikes. IC Role / Device Role: Primary overvoltage clamp on VCC rail upstream of LDO regulator. Use Value: Limits transient excursions to ≤11.7V, preventing LDO dropout and transceiver latch-up during 12V system surges. |
Use Scenario: Safeguarding 24V digital input optocoupler interface against field-wiring EFT and surge events. IC Role / Device Role: Front-end TVS on input terminal block before series resistor and opto-LED. Use Value: Clamps 1kV/500A EFT bursts to sub-12V level, preserving optocoupler CTR and enabling >100k-cycle reliability. |
| USB-C Power Delivery (PD) Adapter Feedback Loop | Smart Lighting Driver IC Interface |
Use Scenario: Protecting error amplifier feedback node (VFB) from coupling-induced transients during AC/DC converter switching. IC Role / Device Role: Low-capacitance TVS shunting VFB to GND, placed adjacent to controller IC. Use Value: Prevents false regulation trips by clamping sub-10ns noise spikes below 12V while adding <1pF parasitic capacitance. |
Use Scenario: Shielding DALI or 0–10V dimming control inputs of LED driver ICs from building wiring transients. IC Role / Device Role: Standoff-rated TVS on analog control line, rated for continuous 6.05V operation. Use Value: Maintains signal fidelity across 0–10V range while suppressing 4kV ESD per IEC 61000-4-2 without forward conduction. |
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 SMAJ7.5A | Same DO-214AC (SMA) package; 7.5V nominal, 12.5V VC @ 32.1A; no AEC-Q101 qualification | Suitable for commercial/industrial PCBs with surface-mount constraints; not validated for automotive temperature cycling | Select when board space demands SMT and AEC-Q101 is not mandated. |
| Vishay 1.5KE7.5C | Higher 1500W rating, DO-201AD package; 7.5V nominal, 12.9V VC @ 116A; bidirectional configuration | Used where bipolar transients (e.g., relay coil reversal) require symmetrical clamping; larger footprint and higher cost | Choose only if bidirectional protection and >1kW surge handling are required - not a drop-in replacement. |
Compared with SMAJ7.5A and 1.5KE7.5C, the P4KE7.5H offers AEC-Q101 validation and axial DO-41 through-hole compatibility ideal for high-reliability automotive harness connections, while maintaining tighter clamping (11.7V vs. 12.5V/12.9V) and lower leakage at equivalent VWM.
Availability
P4KE7.5H is available at Aetrix Electronics and suitable for automotive electronics, industrial PLC input protection, and USB-C PD adapter design requiring stable component supply and long-term lifecycle assurance.
Supply support for P4KE7.5H 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 MOSFETs, with global distribution and AEC-Q101-compliant product lines.
The P4KE series was developed specifically for high-energy transient suppression in automotive and industrial environments, emphasizing rugged packaging, precise VBR tolerances, and repeatable clamping performance across extended temperature ranges.
FAQ
What is the AEC-Q101 qualification status of P4KE7.5H?
The P4KE7.5H is explicitly AEC-Q101 qualified per the manufacturer's ordering code suffix "H", confirming completion of stress tests including high-temperature reverse bias, temperature cycling, and ESD per automotive reliability standards. This qualification applies directly to the P4KE7.5H variant, not the base P4KE7.5.
How does the clamping voltage of P4KE7.5H compare to its breakdown voltage?
The P4KE7.5H has a minimum breakdown voltage (VBR) of 6.75V at 10mA and a maximum clamping voltage (VC) of 11.7V at 35A. This yields a clamping ratio of ~1.73, indicating efficient energy diversion with minimal overvoltage overshoot - critical for protecting 5V logic interfaces without exceeding absolute maximum ratings.
Can P4KE7.5H be used in bidirectional signal lines?
No - the P4KE7.5H is unidirectional and contains a cathode band marking. For bidirectional protection, TSC offers the P4KE7.5C variant (with "C" suffix). Using P4KE7.5H on AC or reversible signal paths risks forward conduction during negative half-cycles and potential device failure.
What is the maximum steady-state power dissipation for P4KE7.5H?
The P4KE7.5H has a steady-state power dissipation (PD) rating of 1W at lead temperature TL = 75°C with 0.375" (9.5mm) copper pads per terminal. Derating is required above 25°C ambient per Figure 2 in the datasheet; at 75°C ambient, PD drops to approximately 0.5W.
Is P4KE7.5H RoHS and halogen-free compliant?
Yes - the P4KE7.5H complies with RoHS Directive 2011/65/EU and is halogen-free per IEC 61249-2-21, confirmed in the mechanical data section. The molding compound meets UL 94V-0, and leads are pure tin-plated per J-STD-002 for lead-free soldering compatibility.
P4KE7.5H 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):
- 6.05V
- Voltage - Breakdown (Min):
- 6.75V
- Voltage - Clamping (Max) @ Ipp:
- 11.7V
- Current - Peak Pulse (10/1000µs):
- 35A
- 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)
P4KE7.5H FAQ
1.How can I place an order for P4KE7.5H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE7.5H 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 P4KE7.5H reliable?
The price and inventory of P4KE7.5H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE7.5H is usually 5 days.
3.What payment methods are accepted for P4KE7.5H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE7.5H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE7.5H?
P4KE7.5H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE7.5H 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 P4KE7.5H?
For technical support, including P4KE7.5H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE7.5H requirements.
6.How does Aetrix verify that P4KE7.5H is sourced from the original manufacturer or authorized distributors?
All P4KE7.5H 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 P4KE7.5H meets industry standards.
7.What is the process for return or replacement of P4KE7.5H?
All P4KE7.5H units undergo pre-shipment inspection (PSI). If there is an issue with P4KE7.5H, 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 P4KE7.5H part is unused and in its original packaging.
Return procedure for P4KE7.5H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE7.5H Tags
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