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Taiwan Semiconductor Corporation P4KE180A
- Part No.:
- P4KE180A
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-204AL, DO-41, Axial
- Datasheet:
-
P4KE180A.pdf
- Description:
- TVS DIODE 154VWM 246VC DO204AL
- Quantity:
- Payment:
- Shipping:
Inventory:2,794
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Product details
Overview
P4KE180A from Taiwan Semiconductor is a unidirectional 400W transient voltage suppressor (TVS) diode with a nominal breakdown voltage of 180 V, working stand-off voltage of 154 V, and clamping voltage of 246 V at 1.7 A peak pulse current. It features low leakage (<1 μA), fast response (<1.0 ps), and DO-204AL (DO-41) axial package - designed for protecting power rails and I/O lines in industrial power supplies and automotive control modules.
For engineers reviewing the P4KE180A datasheet, P4KE180A pinout, P4KE180A application, or P4KE180A equivalent, key selection criteria include its 180 V standoff rating, 246 V clamping performance under 10/1000 μs surge, temperature coefficient of 0.108 %/°C, AEC-Q101 qualification option (P4KE180AH), and compatibility with lead-free reflow and J-STD-002 solderability requirements.
Technical Context
The P4KE180A operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its 162–189 V breakdown range (tested at 1 mA). Its junction structure delivers low dynamic impedance during transient events, enabling effective clamping of 400 W surges per the 10/1000 μs waveform standard (ANSI/IEEE C62.35).
Thermal design is constrained by a 175 °C maximum junction temperature and 1 W steady-state power dissipation at 75 °C lead temperature. Polarity is marked by a cathode band; it is not rated for bidirectional use unless explicitly suffixed with "C" or "CA".
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 154 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC/AC rail protection margin. |
| VBR @ IT=1 mA | 171–189 V - Confirmed breakdown range ensures reliable turn-on above system overvoltage thresholds. |
| VC @ IPPM=1.7 A | 246 V - Clamped voltage during 10/1000 μs surge; determines maximum stress on downstream ICs. |
| IPPM | 1.7 A - Peak pulse current capability directly tied to 400 W surge rating per standardized waveform. |
| IR @ VWM | <1 μA - Ultra-low reverse leakage preserves efficiency in high-impedance sensing or battery-backed circuits. |
| TJ max | 175 °C - Enables operation in under-hood automotive or enclosed industrial enclosures without derating. |
| Package | DO-204AL (DO-41) - Axial-leaded, UL 94V-0 molded package compatible with through-hole assembly and manual repair. |
Pinout & Package
DO-204AL (DO-41) axial package with cathode indicated by a painted band. Leads are pure tin-plated, compliant with J-STD-002 solderability and JESD201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side (e.g., GND or return path); conducts during forward surge or bias conditions. |
| Cathode (banded end) | Reverse breakdown terminal | Connected to protected line (e.g., 12 V rail); avalanches into conduction when reverse voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Rated per 10/1000 μs waveform - sustains single-event lightning or EFT-induced transients without failure. |
| Clamping ratio VC/VBR ≈ 1.37 | Low ratio confirms high surge energy handling efficiency and minimal overvoltage exposure to protected ICs. |
| AEC-Q101 qualified variant available | P4KE180AH meets stress test requirements for automotive electronics - validated for temperature cycling, HTRB, and mechanical shock. |
| RoHS & halogen-free | Complies with IEC 61249-2-21 and EU RoHS Directive - suitable for consumer, industrial, and automotive supply chains. |
| Fast response time <1.0 ps | Enables protection of high-speed interfaces (e.g., CAN, LIN) where nanosecond-scale transients could bypass slower suppressors. |
Applications
| Automotive Power Rail Protection | Industrial PLC Input Protection |
|---|---|
|
Use Scenario: 12 V/24 V battery-connected ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role: Unidirectional TVS placed between power rail and ground to clamp surges before they reach MCU power pins or regulator inputs. Use Value: Withstands 400 W surges and clamps to 246 V, limiting stress on 36 V-rated input stages of automotive PMICs and CAN transceivers. |
Use Scenario: Digital input modules receiving 24 V DC signals from field sensors in factory automation environments. IC Role / Device Role: Front-end transient suppressor on each channel to absorb EFT (IEC 61000-4-4) and ESD (IEC 61000-4-2) events. Use Value: Sub-1 μA leakage avoids false triggering in high-impedance optocoupler or comparator input circuits; DO-41 form factor enables dense PCB layout. |
| LED Driver Overvoltage Clamp | Telecom Line Interface Protection |
|
Use Scenario: Constant-current LED drivers powered from unregulated 48 V telecom or PoE-derived supplies subject to inductive switching spikes. IC Role / Device Role: Parallel-connected TVS across driver output to prevent overvoltage damage to LED strings during MOSFET turn-off. Use Value: 154 V VWM allows normal operation at 48 V ±10 %, while 246 V VC protects LEDs rated up to 200 V reverse. |
Use Scenario: Low-voltage analog interface (e.g., RS-485, FXS) connected to long wiring harnesses susceptible to induced surges. IC Role / Device Role: Primary-level protection device on signal pair, placed before TVS arrays or integrated protection ICs. Use Value: Fast <1.0 ps response captures fast-rising transients before propagation into sensitive PHY circuitry; DO-41 allows easy replacement in field service. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ180A | Same DO-214AC (SMA) package; 180 V VBR, 246 V VC @ 1.7 A; 400 W rating; slightly higher leakage (≤5 μA @ VWM). | Surface-mount only; requires rework of PCB layout; better thermal performance in high-density designs. | Select when board space is constrained and SMT assembly is preferred; verify pad thermal relief for 1 W steady-state dissipation. |
| ON Semiconductor 1.5KE180A | Same DO-201AD (DO-27) axial package; identical VBR (171–189 V), VC (246 V), and 400 W rating; longer lead length (1.5 inch vs. 0.375 inch). | Higher mounting height and different lead spacing; may require mechanical redesign for existing DO-41 footprints. | Choose when legacy 1.5KE series qualification is required; confirm mechanical fit and thermal pad layout compatibility. |
Compared with SMAJ180A and 1.5KE180A, the P4KE180A offers direct DO-41 drop-in compatibility, lowest leakage (<1 μA), and AEC-Q101-qualified variants - making it optimal for cost-sensitive through-hole automotive and industrial designs requiring proven reliability and serviceability.
Availability
P4KE180A is available at Aetrix Electronics and suitable for automotive power management, industrial PLC input protection, LED driver overvoltage clamping, and telecom line interface protection requiring stable component supply and long-term lifecycle support.
Supply support for P4KE180A 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 Taiwanese semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and thyristors since 1979.
The P4KE series was developed for robust, cost-effective transient suppression in automotive, industrial, and consumer power systems - emphasizing high surge reliability, AEC-Q101 compliance, and broad voltage coverage from 6.8 V to 440 V.
FAQ
What is the maximum clamping voltage of the P4KE180A under standard surge conditions?
The P4KE180A has a maximum clamping voltage (VC) of 246 V when subjected to a 10/1000 μs waveform with a peak pulse current of 1.7 A. This value is measured per ANSI/IEEE C62.35 and represents the upper limit of voltage seen by downstream components during a defined transient event. The P4KE180A maintains this clamping performance consistently across its operating temperature range of –55 °C to +175 °C.
Is the P4KE180A suitable for bidirectional transient protection?
No, the P4KE180A is a unidirectional TVS diode intended for DC or polarity-defined AC applications. Its cathode band marking and electrical specifications (e.g., forward voltage of 3.5 V at 25 A) apply only in the forward direction. For bidirectional protection, select the P4KE180CA variant - which provides symmetrical breakdown in both directions and is explicitly rated for bipolar use per the datasheet.
Does the P4KE180A meet automotive qualification standards?
The base P4KE180A is not AEC-Q101 qualified, but the P4KE180AH variant - identified by the "H" suffix - is fully AEC-Q101 qualified and tested for temperature cycling, high-temperature reverse bias (HTRB), and mechanical shock. Both share identical electrical parameters; only the P4KE180AH carries the automotive stress certification required for under-hood and safety-critical ECUs.
What is the reverse leakage current specification for the P4KE180A at its working voltage?
The P4KE180A exhibits a maximum reverse leakage current (IR) of 1 μA when biased at its working stand-off voltage (VWM) of 154 V and measured at 25 °C. This ultra-low leakage ensures minimal power loss in always-on circuits and prevents false triggering in high-impedance monitoring paths - a key advantage over alternatives with leakage up to 5 μA at comparable voltages.
Can the P4KE180A be used in lead-free reflow processes?
Yes, the P4KE180A uses pure tin-plated leads and is rated for lead-free soldering per J-STD-002. Its DO-204AL (DO-41) package withstands peak reflow temperatures up to 260 °C for 10 seconds. However, due to its axial through-hole construction, it is typically wave-soldered or hand-soldered; reflow is applicable only when mounted on surface-mount carrier boards or adapters.
P4KE180A 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):
- 154V
- Voltage - Breakdown (Min):
- 171V
- Voltage - Clamping (Max) @ Ipp:
- 246V
- Current - Peak Pulse (10/1000µs):
- 1.7A
- 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)
P4KE180A FAQ
1.How can I place an order for P4KE180A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4KE180A 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 P4KE180A reliable?
The price and inventory of P4KE180A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4KE180A is usually 5 days.
3.What payment methods are accepted for P4KE180A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4KE180A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4KE180A?
P4KE180A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4KE180A 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 P4KE180A?
For technical support, including P4KE180A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4KE180A requirements.
6.How does Aetrix verify that P4KE180A is sourced from the original manufacturer or authorized distributors?
All P4KE180A 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 P4KE180A meets industry standards.
7.What is the process for return or replacement of P4KE180A?
All P4KE180A units undergo pre-shipment inspection (PSI). If there is an issue with P4KE180A, 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 P4KE180A part is unused and in its original packaging.
Return procedure for P4KE180A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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