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Taiwan Semiconductor Corporation P4KE7.5C
- Part No.:
- P4KE7.5C
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE7.5C.pdf
- Description:
- 400W, 7.5V, BIDIRECTIONAL, TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,240
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Product details
Overview
P4KE7.5C from Taiwan Semiconductor is a bidirectional transient voltage suppressor (TVS) diode designed for circuit-level ESD and surge protection in DC power rails and signal lines. It features a 7.5V nominal standoff voltage, 6.75–8.25V breakdown voltage at 10mA test current, 6.05V working peak reverse voltage, and clamps transients to ≤11.7V at 35A peak pulse current under 10/1000μs waveform - deployed in automotive lighting control modules and industrial sensor interfaces.
For engineers reviewing the P4KE7.5C datasheet, P4KE7.5C pinout, P4KE7.5C application, or P4KE7.5C equivalent, key selection criteria include bidirectional clamping capability, DO-41 package compatibility, AEC-Q101 qualification status, low leakage (<500μA @ 6.05V), and thermal stability up to +175°C junction temperature.
Technical Context
The P4KE7.5C operates as a silicon avalanche diode with symmetrical bidirectional conduction - enabling identical clamping behavior in both polarities without external polarity management. Its 400W peak pulse power rating is defined per 10/1000μs waveform per ANSI/IEEE C62.35, and it achieves sub-nanosecond response time (<5ns) from zero bias to breakdown.
Thermal performance is governed by a maximum junction temperature of +175°C and derated steady-state power dissipation (1W at TL = 75°C on 5×5 mm copper pads). The device exhibits a VBR temperature coefficient of +0.061%/°C and maintains <500μA reverse leakage at rated VWM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 6.05 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected line voltage. |
| VBR min/max | 6.75 V / 8.25 V at IT = 10 mA - Confirmed avalanche onset range; ensures reliable triggering across process variation. |
| VC @ IPPM | 11.7 V at 35 A - Clamped voltage during 10/1000μs surge; defines worst-case overvoltage seen by downstream ICs. |
| PPK | 400 W - Peak pulse power handling per single non-repetitive event; validates robustness against IEC 61000-4-5 Level 4 surges. |
| ID @ VWM | <500 μA - Reverse leakage at working voltage; ensures minimal standby power loss and signal integrity in high-impedance circuits. |
| TJ max | +175 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial environments. |
| Package | DO-204AL (DO-41) - Standard axial-leaded through-hole package with tin-plated leads; compatible with legacy wave-solder and hand-solder processes. |
Pinout & Package
DO-204AL (DO-41) package: axial-leaded, glass-passivated silicon junction, cathode band not marked (bidirectional symmetry eliminates polarity marking).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional avalanche junction | No functional distinction between terminals; either lead connects to protected line or ground - enables flexible layout without orientation constraints. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC characteristics in both directions - eliminates need for polarity-aware placement or dual-device solutions. |
| AEC-Q101 qualified option | Available as P4KE7.5CH variant - validated for automotive-grade reliability including temperature cycling, HAST, and mechanical shock testing. |
| Low clamping ratio | VC/VBR ≈ 1.49 (11.7V / 7.5V nominal) - minimizes overvoltage stress on protected ICs compared to competing 400W TVS devices. |
| Fast transient response | <5 ns response time - ensures suppression activation prior to damage threshold of modern CMOS interface ICs (e.g., CAN, LIN, I²C). |
| UL 94V-0 molding compound | Flame-retardant epoxy encapsulation - meets safety requirements for enclosed industrial and transportation equipment housings. |
Applications
| Automotive LED Headlamp Drivers | Industrial PLC Digital Input Modules |
|---|---|
Use Scenario: Protection of MOSFET gate drivers and current-sense amplifiers against load-dump-induced transients in 12V vehicle lighting systems. IC Role / Device Role / Timing Role: Bidirectional TVS placed across power rail and ground to clamp spikes up to ±100V within nanoseconds. Use Value: Prevents latch-up and gate oxide rupture in 40V-rated driver ICs by limiting rail excursion to ≤11.7V during 35A surges. |
Use Scenario: Shielding 24V digital input optocouplers and level-shifters from EFT bursts and inductive kickback in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff protection element mounted at connector entry point, shunting fast transients before signal conditioning stage. Use Value: Maintains signal integrity under IEC 61000-4-4 Level 4 (4 kV) bursts by holding input node below 12V during 5ns rise-time events. |
| Smart Building Occupancy Sensors | Medical Infusion Pump Motor Controls |
Use Scenario: Safeguarding low-power PIR and ambient light sensors powered from shared 3.3V/5V rails exposed to nearby relay switching noise. IC Role / Device Role / Timing Role: Low-leakage (≤500μA) bidirectional clamp ensuring no DC loading on precision analog front-ends. Use Value: Enables direct integration into space-constrained PCBs without compromising sensor offset or dynamic range due to parasitic current paths. |
Use Scenario: Transient suppression on brushed DC motor drive lines in battery-powered infusion pumps where EMC compliance is critical. IC Role / Device Role / Timing Role: Primary surge limiter on H-bridge supply rail, coordinated with ceramic X2Y capacitors for broadband filtering. Use Value: Achieves CISPR 11 Class B radiated emissions margin by reducing high-frequency ringing amplitude post-clamp via low-inductance DO-41 layout. |
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 SMAJ7.5CA | Same DO-214AC (SMA) package; 7.5V nominal, 11.3V clamping at 38.1A; higher IPPM but surface-mount only. | Requires PCB redesign for SMT vs. through-hole; better for high-density layouts but lacks DO-41 mechanical robustness. | Select when board space is constrained and wave-solder is not required; verify thermal pad design for 1W steady-state dissipation. |
| ON Semiconductor 1.5KE7.5C | Same DO-201AE (DO-15) package; 7.5V nominal, 12.0V clamping at 33.3A; 1500W peak rating but larger footprint and higher VBR tolerance (±10%). | Higher clamping voltage increases risk to 5V-tolerant ICs; suited for less sensitive 12V logic but not precision analog rails. | Choose only if system-level surge threat exceeds 400W; otherwise P4KE7.5C offers tighter clamping and lower leakage. |
Compared with SMAJ7.5CA and 1.5KE7.5C, the P4KE7.5C delivers optimal balance of low clamping voltage (11.7V), through-hole manufacturability, and AEC-Q101 availability - making it preferred for cost-sensitive, thermally demanding, and automotive-qualified designs where DO-41 mounting is retained.
Availability
P4KE7.5C is available at Aetrix Electronics and suitable for automotive lighting systems, industrial PLC input protection, smart building sensor nodes, and medical pump motor drives requiring stable component supply across extended production lifecycles.
Supply support for P4KE7.5C 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 - headquartered in Hsinchu, Taiwan.
The P4KE series belongs to TSC's high-reliability transient suppression product line, engineered specifically for automotive, industrial, and medical applications demanding AEC-Q101 qualification, UL recognition, and consistent clamping performance across temperature extremes.
FAQ
What is the polarity configuration of P4KE7.5C?
The P4KE7.5C is a bidirectional TVS diode with symmetrical avalanche characteristics - neither terminal is designated anode or cathode. This allows installation in either orientation across protected lines, simplifying layout and eliminating polarity-check steps during assembly. The device functions identically regardless of voltage polarity applied, making it ideal for AC-coupled or floating signal paths where directionality cannot be guaranteed.
Does P4KE7.5C meet AEC-Q101 qualification?
The base P4KE7.5C is not AEC-Q101 qualified; however, the variant P4KE7.5CH (with "H" suffix) is fully AEC-Q101 certified per Rev. N2104 documentation. This qualification covers stress tests including temperature cycling, high-acceleration life testing, and unbiased highly accelerated stress testing - confirming suitability for automotive powertrain and body electronics. Always specify P4KE7.5CH when automotive-grade reliability is required.
What is the maximum clamping voltage of P4KE7.5C under standard surge conditions?
The P4KE7.5C clamps to a maximum of 11.7 V when subjected to a 10/1000μs waveform peak pulse current of 35 A - as specified in the "Maximum clamping voltage VC@IPPM" row of the electrical characteristics table. This value represents the worst-case voltage seen by downstream components during standardized surge events and is measured at TA = 25°C with proper heat sinking per JEDEC standards.
How does P4KE7.5C compare to unidirectional P4KE7.5 in circuit protection?
The P4KE7.5C provides identical voltage ratings and clamping performance as the unidirectional P4KE7.5 but supports bidirectional surge suppression - critical for AC signals, differential buses, or circuits where reverse polarity faults may occur. Unlike P4KE7.5, which requires correct orientation and fails open under reverse overvoltage, the P4KE7.5C activates symmetrically, offering broader fault coverage without additional design constraints.
Can P4KE7.5C be used in parallel for higher surge current handling?
Parallel use of P4KE7.5C devices is not recommended due to mismatch in VBR tolerances (±8.3% for P4KE7.5C), which causes uneven current sharing and potential thermal runaway. For higher IPPM requirements, select a single higher-rated device such as P4KE10C (15A) or P4KE12C (13A), or consult TSC's application note AN-402 for derating guidance when forced paralleling is unavoidable in legacy designs.
P4KE7.5C 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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-204AL (DO-41)
P4KE7.5C FAQ
1.How can I place an order for P4KE7.5C through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE7.5C 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 P4KE7.5C reliable?
The price and inventory of P4KE7.5C are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE7.5C is usually 5 days.
3.What payment methods are accepted for P4KE7.5C?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE7.5C transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE7.5C?
P4KE7.5C orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE7.5C 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 P4KE7.5C?
For technical support, including P4KE7.5C datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE7.5C requirements.
6.How does Aetrix verify that P4KE7.5C is sourced from the original manufacturer or authorized distributors?
All P4KE7.5C 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 P4KE7.5C meets industry standards.
7.What is the process for return or replacement of P4KE7.5C?
All P4KE7.5C units undergo pre-shipment inspection (PSI). If there is an issue with P4KE7.5C, 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 P4KE7.5C part is unused and in its original packaging.
Return procedure for P4KE7.5C:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4KE7.5C Tags
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